diff --git a/api/current/deprecated-list.html b/api/current/deprecated-list.html
index f2a6958..61fcdc6 100644
--- a/api/current/deprecated-list.html
+++ b/api/current/deprecated-list.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>PredictionIO Scala API 0.13.0</title>
-          <meta name="description" content="PredictionIO Scala API 0.13.0" />
-          <meta name="keywords" content="PredictionIO Scala API 0.13.0" />
+          <title>PredictionIO Scala API 0.14.0</title>
+          <meta name="description" content="PredictionIO Scala API 0.14.0" />
+          <meta name="keywords" content="PredictionIO Scala API 0.14.0" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="lib/ref-index.css" media="screen" type="text/css" rel="stylesheet" />
diff --git a/api/current/index.html b/api/current/index.html
index 2766d7e..5582d10 100644
--- a/api/current/index.html
+++ b/api/current/index.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>PredictionIO Scala API 0.13.0</title>
-          <meta name="description" content="PredictionIO Scala API 0.13.0" />
-          <meta name="keywords" content="PredictionIO Scala API 0.13.0" />
+          <title>PredictionIO Scala API 0.14.0</title>
+          <meta name="description" content="PredictionIO Scala API 0.14.0" />
+          <meta name="keywords" content="PredictionIO Scala API 0.14.0" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="lib/index.css" media="screen" type="text/css" rel="stylesheet" />
@@ -39,7 +39,11 @@
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             <ol class="templates"></ol>
-            <ol class="packages"> <li class="pack" title="org.apache.predictionio.controller">
+            <ol class="packages"> <li class="pack" title="org.apache.predictionio.akkahttpjson4s">
+            <a class="tplshow" href="org/apache/predictionio/akkahttpjson4s/package.html" target="template">org.apache.predictionio.akkahttpjson4s</a>
+            <ol class="templates"><li title="org.apache.predictionio.akkahttpjson4s.Json4sSupport"><a class="tplshow" href="org/apache/predictionio/akkahttpjson4s/Json4sSupport$.html" target="template"><span class="object">(object)</span></a><a class="tplshow" href="org/apache/predictionio/akkahttpjson4s/Json4sSupport.html" target="template"><span class="trait">(trait)</span><span class="tplLink">Json4sSupport</span></a></li></ol>
+            <ol class="packages"> </ol>
+          </li><li class="pack" title="org.apache.predictionio.controller">
             <a class="tplshow" href="org/apache/predictionio/controller/package.html" target="template">org.apache.predictionio.controller</a>
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href="org/apache/predictionio/controller/EmptyParams.html" target="template"><span class="case class">(case class)</span><span class="tplLink">EmptyParams</span></a></li><li title="org.apache.predictionio.controller.Engine"><a class="tplshow" href="org/apache/predictionio/controller/Engine$.html" target="template"><span class="object">(object)</span></a><a class="tplshow" href="org/apache/predictionio/controller/Engine.html" target="template"><span class="class">(class)</span><span class="tplLink">Engine</span></a></li><li title="org.apache.predictionio.controller.EngineFactory"><div class="placeholder"></div><a class="tplshow" href="org/apache/predictionio/controller/EngineFactory.html" target="template"><span class="class">(class)</span><span class="tplLink">EngineFactory</span></a></li><li title="org.apache.predictionio.controller.EngineParams"><a class="tplshow" href="org/apache/predictionio/controller/EngineParams$.html" target="template"><span class="object">(object)</span></a><a class="tplshow" href="org/apache/predictionio/controller/EngineParams.html" target="template"><span class="class">(class)</span><span class="tplLink">EngineParams</span></a></li><li title="org.apache.predictionio.controller.EngineParamsGenerator"><div class="placeholder"></div><a class="tplshow" href="org/apache/predictionio/controller/EngineParamsGenerator.html" target="template"><span class="trait">(trait)</span><span class="tplLink">EngineParamsGenerator</span></a></li><li title="org.apache.predictionio.controller.Evaluation"><div class="placeholder"></div><a class="tplshow" href="org/apache/predictionio/controller/Evaluation.html" target="template"><span class="trait">(trait)</span><span class="tplLink">Evaluation</span></a></li><li title="org.apache.predictionio.controller.FastEvalEngine"><div class="placeholder"></div><a class="tplshow" href="org/apache/predictionio/controller/FastEvalEngine.html" target="template"><span class="class">(class)</span><span class="tplLink">FastEvalEngine</span></a></li><li title="org.apache.predictionio.controller.FastEvalEngineWorkflow"><a class="tplshow" href="org/apache/predictionio/controller/FastEvalEngineWorkflow$.html" target="template"><span class="object">(object)</span></a><a class="tplshow" href="org/apache/predictionio/controller/FastEvalEngineWorkflow.html" target="template"><span class="class">(class)</span><span class="tplLink">FastEvalEngineWorkflow</span></a></li><li title="org.apache.predictionio.controller.IdentityPreparator"><a class="tplshow" href="org/apache/predictionio/controller/IdentityPreparator$.html" target="template"><span class="object">(object)</span></a><a class="tplshow" href="org/apache/predictionio/controller/IdentityPreparator.html" target="template"><span class="class">(class)</span><span class="tplLink">IdentityPreparator</span></a></li><li title="org.apache.predictionio.controller.IEngineFactory"><div class="placeholder"></div><a class="tplshow" href="org/apache/predictionio/controller/IEngineFactory.html" target="template"><span class="trait">(trait)</span><span class="tplLink">IEngineFactory</span></a></li><li title="org.apache.predictionio.controller.IFSPersistentModel"><div class="placeholder"></div><a class="tplshow" href="org/apache/predictionio/controller/IFSPersistentModel.html" target="template"><span class="trait">(trait)</span><span class="tplLink">IFSPersistentModel</span></a></li><li title="org.apache.predictionio.controller.IFSPersistentModelLoader"><div class="placeholder"></div><a class="tplshow" href="org/apache/predictionio/controller/IFSPersistentModelLoader.html" target="template"><span class="trait">(trait)</span><span class="tplLink">IFSPersistentModelLoader</span></a></li><li title="org.apache.predictionio.controller.IPersistentModel"><div class="placeholder"></div><a class="tplshow" href="org/apache/predictionio/controller/IPersistentModel.html" target="template"><span class="trait">(trait)</span><span 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@@ -49,7 +53,7 @@
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             <ol class="packages"> </ol>
           </li></ol>
           </li></ol>
diff --git a/api/current/index.js b/api/current/index.js
index afc4680..71f9909 100644
--- a/api/current/index.js
+++ b/api/current/index.js
@@ -1 +1 @@
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+          <meta name="description" content="PredictionIO Scala API 0.14.0" />
+          <meta name="keywords" content="PredictionIO Scala API 0.14.0" />
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+          <meta name="description" content="PredictionIO Scala API 0.14.0" />
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+      <div class="occurrences"><a href="../org/apache/predictionio/workflow/PredictionServer.html" class="extype" name="org.apache.predictionio.workflow.PredictionServer">PredictionServer</a> </div>
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index 3b5111d..24a7956 100644
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+          <meta name="keywords" content="PredictionIO Scala API 0.14.0" />
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+          <meta name="keywords" content="PredictionIO Scala API 0.14.0" />
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+      <div class="name">unmarshaller</div>
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+    </div><div class="entry">
+      <div class="name">unmarshallerContentTypes</div>
+      <div class="occurrences"><a href="../org/apache/predictionio/akkahttpjson4s/Json4sSupport.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport">Json4sSupport</a> </div>
+    </div><div class="entry">
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+          <title>PredictionIO Scala API 0.14.0</title>
+          <meta name="description" content="PredictionIO Scala API 0.14.0" />
+          <meta name="keywords" content="PredictionIO Scala API 0.14.0" />
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diff --git a/api/current/index/index-w.html b/api/current/index/index-w.html
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-          <meta name="description" content="PredictionIO Scala API 0.13.0" />
-          <meta name="keywords" content="PredictionIO Scala API 0.13.0" />
+          <title>PredictionIO Scala API 0.14.0</title>
+          <meta name="description" content="PredictionIO Scala API 0.14.0" />
+          <meta name="keywords" content="PredictionIO Scala API 0.14.0" />
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-          <meta name="description" content="PredictionIO Scala API 0.13.0" />
-          <meta name="keywords" content="PredictionIO Scala API 0.13.0" />
+          <title>PredictionIO Scala API 0.14.0</title>
+          <meta name="description" content="PredictionIO Scala API 0.14.0" />
+          <meta name="keywords" content="PredictionIO Scala API 0.14.0" />
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-          <meta name="keywords" content="apache PredictionIO Scala API 0.13.0 org.apache" />
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+          <meta name="description" content="apache - PredictionIO Scala API 0.14.0 - org.apache" />
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@@ -1,9 +1,9 @@
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-          <meta name="keywords" content="SparkVersionDependent PredictionIO Scala API 0.13.0 org.apache.predictionio.data.SparkVersionDependent" />
+          <title>False - PredictionIO Scala API 0.14.0 - org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty.False</title>
+          <meta name="description" content="False - PredictionIO Scala API 0.14.0 - org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty.False" />
+          <meta name="keywords" content="False PredictionIO Scala API 0.14.0 org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty.False" />
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-            <a href="package.html" class="extype" name="org.apache.predictionio.data">package data</a>
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+        <h1>False</h1><h3><span class="morelinks"><div>Related Doc:
+            <a href="Json4sSupport$$ShouldWritePretty$.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty">package ShouldWritePretty</a>
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+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$$False$" title="Permalink" target="_top">
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+          <div class="superTypes hiddenContent"><a href="Json4sSupport$$ShouldWritePretty.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty">ShouldWritePretty</a>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@!=(x$1:Any):Boolean" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$$False$@!=(x$1:Any):Boolean" title="Permalink" target="_top">
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+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@==(x$1:Any):Boolean" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$$False$@==(x$1:Any):Boolean" title="Permalink" target="_top">
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-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@asInstanceOf[T0]:T0" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$$False$@asInstanceOf[T0]:T0" title="Permalink" target="_top">
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+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$$False$@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
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@@ -211,10 +211,10 @@
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+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$$False$@equals(x$1:Any):Boolean" title="Permalink" target="_top">
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+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$$False$@getClass():Class[_]" title="Permalink" target="_top">
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similarity index 69%
rename from api/current/org/apache/predictionio/data/SparkVersionDependent$.html
rename to api/current/org/apache/predictionio/akkahttpjson4s/Json4sSupport$$ShouldWritePretty$$True$.html
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+          <meta name="description" content="True - PredictionIO Scala API 0.14.0 - org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty.True" />
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similarity index 67%
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copy to api/current/org/apache/predictionio/akkahttpjson4s/Json4sSupport$$ShouldWritePretty$.html
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+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@!=(x$1:Any):Boolean" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
@@ -120,10 +122,10 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@##():Int" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@##():Int" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
@@ -137,14 +139,48 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@==(x$1:Any):Boolean" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@==(x$1:Any):Boolean" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
       <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty.False" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="False"></a>
+      <a id="False:False"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">object</span>
+      </span>
+      <span class="symbol">
+        <a href="Json4sSupport$$ShouldWritePretty$$False$.html"><span class="name">False</span></a><span class="result"> extends <a href="Json4sSupport$$ShouldWritePretty.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty">ShouldWritePretty</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@False" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty.True" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="True"></a>
+      <a id="True:True"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">object</span>
+      </span>
+      <span class="symbol">
+        <a href="Json4sSupport$$ShouldWritePretty$$True$.html"><span class="name">True</span></a><span class="result"> extends <a href="Json4sSupport$$ShouldWritePretty.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty">ShouldWritePretty</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@True" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
     </li><li name="scala.Any#asInstanceOf" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="asInstanceOf[T0]:T0"></a>
       <a id="asInstanceOf[T0]:T0"></a>
@@ -157,7 +193,7 @@
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       </span>
       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@asInstanceOf[T0]:T0" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@asInstanceOf[T0]:T0" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
@@ -171,10 +207,10 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@clone():Object" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@clone():Object" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
@@ -194,10 +230,10 @@
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       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
@@ -211,10 +247,10 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@equals(x$1:Any):Boolean" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@equals(x$1:Any):Boolean" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
@@ -228,10 +264,10 @@
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-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@finalize():Unit" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@finalize():Unit" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
@@ -254,7 +290,7 @@
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       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@getClass():Class[_]" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@getClass():Class[_]" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
@@ -268,10 +304,10 @@
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       </span>
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-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@hashCode():Int" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@hashCode():Int" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
@@ -285,10 +321,10 @@
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       </span>
       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
@@ -302,10 +338,10 @@
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-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
@@ -319,10 +355,10 @@
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+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@notify():Unit" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@notify():Unit" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
@@ -336,31 +372,14 @@
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-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@notifyAll():Unit" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@notifyAll():Unit" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
       <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
-    </li><li name="org.apache.predictionio.data.SparkVersionDependent#sqlSession" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
-      <a id="sqlSession(sc:org.apache.spark.SparkContext):org.apache.spark.sql.SparkSession"></a>
-      <a id="sqlSession(SparkContext):SparkSession"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">def</span>
-      </span>
-      <span class="symbol">
-        <span class="name">sqlSession</span><span class="params">(<span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>)</span><span class="result">: <span class="extype" name="org.apache.spark.sql.SparkSession">SparkSession</span></span>
-      </span>
-      </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@sqlSession(sc:org.apache.spark.SparkContext):org.apache.spark.sql.SparkSession" title="Permalink" target="_top">
-        <img src="../../../../lib/permalink.png" alt="Permalink" />
-      </a>
-    </span>
-      
     </li><li name="scala.AnyRef#synchronized" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="synchronized[T0](x$1:=&gt;T0):T0"></a>
       <a id="synchronized[T0](⇒T0):T0"></a>
@@ -373,7 +392,7 @@
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-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@synchronized[T0](x$1:=&gt;T0):T0" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@synchronized[T0](x$1:=&gt;T0):T0" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
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@@ -390,7 +409,7 @@
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       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@toString():String" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@toString():String" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
@@ -404,10 +423,10 @@
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+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@wait():Unit" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@wait():Unit" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
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@@ -427,10 +446,10 @@
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-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
@@ -450,10 +469,10 @@
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+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@wait(x$1:Long):Unit" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty$@wait(x$1:Long):Unit" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
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@@ -474,9 +493,9 @@
 
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+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/data/SparkVersionDependent$.html b/api/current/org/apache/predictionio/akkahttpjson4s/Json4sSupport$$ShouldWritePretty.html
similarity index 69%
copy from api/current/org/apache/predictionio/data/SparkVersionDependent$.html
copy to api/current/org/apache/predictionio/akkahttpjson4s/Json4sSupport$$ShouldWritePretty.html
index 786abab..8255e89 100644
--- a/api/current/org/apache/predictionio/data/SparkVersionDependent$.html
+++ b/api/current/org/apache/predictionio/akkahttpjson4s/Json4sSupport$$ShouldWritePretty.html
@@ -1,9 +1,9 @@
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-          <meta name="keywords" content="SparkVersionDependent PredictionIO Scala API 0.13.0 org.apache.predictionio.data.SparkVersionDependent" />
+          <title>ShouldWritePretty - PredictionIO Scala API 0.14.0 - org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty</title>
+          <meta name="description" content="ShouldWritePretty - PredictionIO Scala API 0.14.0 - org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty" />
+          <meta name="keywords" content="ShouldWritePretty PredictionIO Scala API 0.14.0 org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty" />
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@@ -16,7 +16,7 @@
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@@ -26,14 +26,16 @@
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+        <body class="type">
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-        <h1>SparkVersionDependent</h1><h3><span class="morelinks"><div>Related Doc:
-            <a href="package.html" class="extype" name="org.apache.predictionio.data">package data</a>
+        <a href="Json4sSupport$$ShouldWritePretty$.html" title="See companion object"><img alt="Class/Object" src="../../../../lib/class_to_object_big.png" /></a>
+        <p id="owner"><a href="../../../package.html" class="extype" name="org">org</a>.<a href="../../package.html" class="extype" name="org.apache">apache</a>.<a href="../package.html" class="extype" name="org.apache.predictionio">predictionio</a>.<a href="package.html" class="extype" name="org.apache.predictionio.akkahttpjson4s">akkahttpjson4s</a>.<a href="Json4sSupport$.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport">Json4sSupport</a></p>
+        <h1><a href="Json4sSupport$$ShouldWritePretty$.html" title="See companion object">ShouldWritePretty</a></h1><h3><span class="morelinks"><div>
+            Related Docs:
+            <a href="Json4sSupport$$ShouldWritePretty$.html" title="See companion object">object ShouldWritePretty</a>
+            | <a href="Json4sSupport$.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport">package Json4sSupport</a>
           </div></span></h3><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$" title="Permalink" target="_top">
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+        <span class="name">ShouldWritePretty</span><span class="result"> extends <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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-        </div></div>
+          <div class="superTypes hiddenContent"><span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
+        </div><div class="toggleContainer block">
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+            <div class="subClasses hiddenContent"><a href="Json4sSupport$$ShouldWritePretty$$False$.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty.False">False</a>, <a href="Json4sSupport$$ShouldWritePretty$$True$.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty.True">True</a></div>
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+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -120,10 +125,10 @@
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-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@##():Int" title="Permalink" target="_top">
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@@ -137,10 +142,10 @@
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-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@==(x$1:Any):Boolean" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty@==(x$1:Any):Boolean" title="Permalink" target="_top">
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@@ -157,7 +162,7 @@
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+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty@asInstanceOf[T0]:T0" title="Permalink" target="_top">
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@@ -171,10 +176,10 @@
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+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@clone():Object" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty@clone():Object" title="Permalink" target="_top">
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@@ -194,10 +199,10 @@
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+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
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@@ -211,10 +216,10 @@
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+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@equals(x$1:Any):Boolean" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$$ShouldWritePretty@equals(x$1:Any):Boolean" title="Permalink" target="_top">
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@@ -228,10 +233,10 @@
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+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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-      <a href="../../../../index.html#org.apache.predictionio.data.SparkVersionDependent$@finalize():Unit" title="Permalink" target="_top">
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@@ -254,7 +259,7 @@
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@@ -268,10 +273,10 @@
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+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -285,10 +290,10 @@
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+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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-      </a>
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+            Related Docs:
+            <a href="Json4sSupport.html" title="See companion trait">trait Json4sSupport</a>
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+      <span class="symbol">
+        <span class="name">getClass</span><span class="params">()</span><span class="result">: <span class="extype" name="java.lang.Class">Class</span>[_]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$@getClass():Class[_]" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#hashCode" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="hashCode():Int"></a>
+      <a id="hashCode():Int"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$@hashCode():Int" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.Any#isInstanceOf" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="isInstanceOf[T0]:Boolean"></a>
+      <a id="isInstanceOf[T0]:Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="org.apache.predictionio.akkahttpjson4s.Json4sSupport#marshaller" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="marshaller[A&lt;:AnyRef](implicitserialization:org.json4s.Serialization,implicitformats:org.json4s.Formats,implicitshouldWritePretty:org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty):akka.http.scaladsl.marshalling.ToEntityMarshaller[A]"></a>
+      <a id="marshaller[A&lt;:AnyRef](Serialization,Formats,ShouldWritePretty):ToEntityMarshaller[A]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">implicit </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">marshaller</span><span class="tparams">[<span name="A">A &lt;: <span class="extype" name="scala.AnyRef">AnyRef</span></span>]</span><span class="params">(<span class="implicit">implicit </span><span name="serialization">serialization: <span class="extype" name="org.json4s.Serialization">Serialization</span></span>, <span name="formats">formats: <span class="extype" name="org.json4s.Formats">Formats</span></span>, <span name="shouldWritePretty">shouldWritePretty: <a href="Json4sSupport$$ShouldWritePretty.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty">ShouldWritePretty</a> = <span class="symbol"><span class="name"><a href="">ShouldWritePretty.False</a></span></span></span>)</span><span class="result">: <span class="extype" name="akka.http.scaladsl.marshalling.ToEntityMarshaller">ToEntityMarshaller</span>[<span class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport.marshaller.A">A</span>]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$@marshaller[A&lt;:AnyRef](implicitserialization:org.json4s.Serialization,implicitformats:org.json4s.Formats,implicitshouldWritePretty:org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty):akka.http.scaladsl.marshalling.ToEntityMarshaller[A]" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt"><code>A</code> =&gt; HTTP entity
+</p><div class="fullcomment"><div class="comment cmt"><p><code>A</code> =&gt; HTTP entity
+</p></div><dl class="paramcmts block"><dt class="tparam">A</dt><dd class="cmt"><p>type to encode, must be upper bounded by <code>AnyRef</code></p></dd><dt>returns</dt><dd class="cmt"><p>marshaller for any <code>A</code> value</p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="Json4sSupport.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport">Json4sSupport</a></dd></dl></div>
+    </li><li name="org.apache.predictionio.akkahttpjson4s.Json4sSupport#mediaTypes" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="mediaTypes:scala.collection.immutable.Seq[akka.http.scaladsl.model.MediaType.WithFixedCharset]"></a>
+      <a id="mediaTypes:Seq[WithFixedCharset]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">mediaTypes</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.collection.immutable.Seq" class="extype" target="_top">Seq</a>[<span class="extype" name="akka.http.scaladsl.model.MediaType.WithFixedCharset">WithFixedCharset</span>]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$@mediaTypes:scala.collection.immutable.Seq[akka.http.scaladsl.model.MediaType.WithFixedCharset]" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="Json4sSupport.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport">Json4sSupport</a></dd></dl></div>
+    </li><li name="scala.AnyRef#ne" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="ne(x$1:AnyRef):Boolean"></a>
+      <a id="ne(AnyRef):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#notify" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="notify():Unit"></a>
+      <a id="notify():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$@notify():Unit" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#notifyAll" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="notifyAll():Unit"></a>
+      <a id="notifyAll():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$@notifyAll():Unit" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#synchronized" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="synchronized[T0](x$1:=&gt;T0):T0"></a>
+      <a id="synchronized[T0](⇒T0):T0"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">synchronized</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="params">(<span name="arg0">arg0: ⇒ <span class="extype" name="java.lang.AnyRef.synchronized.T0">T0</span></span>)</span><span class="result">: <span class="extype" name="java.lang.AnyRef.synchronized.T0">T0</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$@synchronized[T0](x$1:=&gt;T0):T0" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#toString" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="toString():String"></a>
+      <a id="toString():String"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">toString</span><span class="params">()</span><span class="result">: <span class="extype" name="java.lang.String">String</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$@toString():String" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="org.apache.predictionio.akkahttpjson4s.Json4sSupport#unmarshaller" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="unmarshaller[A](implicitevidence$1:Manifest[A],implicitserialization:org.json4s.Serialization,implicitformats:org.json4s.Formats):akka.http.scaladsl.unmarshalling.FromEntityUnmarshaller[A]"></a>
+      <a id="unmarshaller[A](Manifest[A],Serialization,Formats):FromEntityUnmarshaller[A]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">implicit </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">unmarshaller</span><span class="tparams">[<span name="A">A</span>]</span><span class="params">(<span class="implicit">implicit </span><span name="arg0">arg0: <span class="extype" name="scala.Predef.Manifest">Manifest</span>[<span class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport.unmarshaller.A">A</span>]</span>, <span name="serialization">serialization: <span class="extype" name="org.json4s.Serialization">Serialization</span></span>, <span name="formats">formats: <span class="extype" name="org.json4s.Formats">Formats</span></span>)</span><span class="result">: <span class="extype" name="akka.http.scaladsl.unmarshalling.FromEntityUnmarshaller">FromEntityUnmarshaller</span>[<span class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport.unmarshaller.A">A</span>]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$@unmarshaller[A](implicitevidence$1:Manifest[A],implicitserialization:org.json4s.Serialization,implicitformats:org.json4s.Formats):akka.http.scaladsl.unmarshalling.FromEntityUnmarshaller[A]" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">HTTP entity =&gt; <code>A</code>
+</p><div class="fullcomment"><div class="comment cmt"><p>HTTP entity =&gt; <code>A</code>
+</p></div><dl class="paramcmts block"><dt class="tparam">A</dt><dd class="cmt"><p>type to decode</p></dd><dt>returns</dt><dd class="cmt"><p>unmarshaller for <code>A</code></p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="Json4sSupport.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport">Json4sSupport</a></dd></dl></div>
+    </li><li name="org.apache.predictionio.akkahttpjson4s.Json4sSupport#unmarshallerContentTypes" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="unmarshallerContentTypes:scala.collection.immutable.Seq[akka.http.scaladsl.model.ContentTypeRange]"></a>
+      <a id="unmarshallerContentTypes:Seq[ContentTypeRange]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">unmarshallerContentTypes</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.collection.immutable.Seq" class="extype" target="_top">Seq</a>[<a href="http://doc.akka.io/api/akka-http/10.1.5/index.html#akka.http.scaladsl.model.ContentTypeRange" class="extype" target="_top">ContentTypeRange</a>]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$@unmarshallerContentTypes:scala.collection.immutable.Seq[akka.http.scaladsl.model.ContentTypeRange]" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="Json4sSupport.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport">Json4sSupport</a></dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait():Unit"></a>
+      <a id="wait():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$@wait():Unit" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait(x$1:Long,x$2:Int):Unit"></a>
+      <a id="wait(Long,Int):Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait(x$1:Long):Unit"></a>
+      <a id="wait(Long):Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport$@wait(x$1:Long):Unit" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li></ol>
+            </div>
+
+        
+
+        
+        </div>
+
+        <div id="inheritedMembers">
+        <div class="parent" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport">
+              <h3>Inherited from <a href="Json4sSupport.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport">Json4sSupport</a></h3>
+            </div><div class="parent" name="scala.AnyRef">
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
+            </div><div class="parent" name="scala.Any">
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
+            </div>
+        
+        </div>
+
+        <div id="groupedMembers">
+        <div class="group" name="Ungrouped">
+              <h3>Ungrouped</h3>
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+            </div>
+        </div>
+
+      </div>
+
+      <div id="tooltip"></div>
+
+      <div id="footer">  </div>
+
+
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+      </html>
diff --git a/api/current/org/apache/predictionio/akkahttpjson4s/Json4sSupport.html b/api/current/org/apache/predictionio/akkahttpjson4s/Json4sSupport.html
new file mode 100644
index 0000000..b2506b2
--- /dev/null
+++ b/api/current/org/apache/predictionio/akkahttpjson4s/Json4sSupport.html
@@ -0,0 +1,560 @@
+<!DOCTYPE html >
+<html>
+        <head>
+          <title>Json4sSupport - PredictionIO Scala API 0.14.0 - org.apache.predictionio.akkahttpjson4s.Json4sSupport</title>
+          <meta name="description" content="Json4sSupport - PredictionIO Scala API 0.14.0 - org.apache.predictionio.akkahttpjson4s.Json4sSupport" />
+          <meta name="keywords" content="Json4sSupport PredictionIO Scala API 0.14.0 org.apache.predictionio.akkahttpjson4s.Json4sSupport" />
+          <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
+          
+      <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
+      <link href="../../../../lib/diagrams.css" media="screen" type="text/css" rel="stylesheet" id="diagrams-css" />
+      <script type="text/javascript" src="../../../../lib/jquery.js" id="jquery-js"></script>
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+      <div id="definition">
+        <a href="Json4sSupport$.html" title="See companion object"><img alt="Trait/Object" src="../../../../lib/trait_to_object_big.png" /></a>
+        <p id="owner"><a href="../../../package.html" class="extype" name="org">org</a>.<a href="../../package.html" class="extype" name="org.apache">apache</a>.<a href="../package.html" class="extype" name="org.apache.predictionio">predictionio</a>.<a href="package.html" class="extype" name="org.apache.predictionio.akkahttpjson4s">akkahttpjson4s</a></p>
+        <h1><a href="Json4sSupport$.html" title="See companion object">Json4sSupport</a></h1><h3><span class="morelinks"><div>
+            Related Docs:
+            <a href="Json4sSupport$.html" title="See companion object">object Json4sSupport</a>
+            | <a href="package.html" class="extype" name="org.apache.predictionio.akkahttpjson4s">package akkahttpjson4s</a>
+          </div></span></h3><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
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+    </span>
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+
+      <h4 id="signature" class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">trait</span>
+      </span>
+      <span class="symbol">
+        <span class="name">Json4sSupport</span><span class="result"> extends <span class="extype" name="scala.AnyRef">AnyRef</span></span>
+      </span>
+      </h4>
+      
+          <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>Automatic to and from JSON marshalling/unmarshalling using an in-scope *Json4s* protocol.</p><p>Pretty printing is enabled if an implicit <a href="Json4sSupport$$ShouldWritePretty$$True$.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty.True">Json4sSupport.ShouldWritePretty.True</a> is in scope.
+</p></div><div class="toggleContainer block">
+          <span class="toggle">Linear Supertypes</span>
+          <div class="superTypes hiddenContent"><span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
+        </div><div class="toggleContainer block">
+            <span class="toggle">Known Subclasses</span>
+            <div class="subClasses hiddenContent"><a href="Json4sSupport$.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport">Json4sSupport</a></div>
+          </div></div>
+        
+
+      <div id="mbrsel">
+        <div id="textfilter"><span class="pre"></span><span class="input"><input id="mbrsel-input" type="text" accesskey="/" /></span><span class="post"></span></div>
+        <div id="order">
+              <span class="filtertype">Ordering</span>
+              <ol>
+                
+                <li class="alpha in"><span>Alphabetic</span></li>
+                <li class="inherit out"><span>By Inheritance</span></li>
+              </ol>
+            </div>
+        <div id="ancestors">
+                <span class="filtertype">Inherited<br />
+                </span>
+                <ol id="linearization">
+                  <li class="in" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport"><span>Json4sSupport</span></li><li class="in" name="scala.AnyRef"><span>AnyRef</span></li><li class="in" name="scala.Any"><span>Any</span></li>
+                </ol>
+              </div><div id="ancestors">
+            <span class="filtertype"></span>
+            <ol>
+              <li class="hideall out"><span>Hide All</span></li>
+              <li class="showall in"><span>Show All</span></li>
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+          </div>
+        <div id="visbl">
+            <span class="filtertype">Visibility</span>
+            <ol><li class="public in"><span>Public</span></li><li class="all out"><span>All</span></li></ol>
+          </div>
+      </div>
+
+      <div id="template">
+        <div id="allMembers">
+        
+
+        
+
+        
+
+        <div id="values" class="values members">
+              <h3>Value Members</h3>
+              <ol><li name="scala.AnyRef#!=" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="!=(x$1:Any):Boolean"></a>
+      <a id="!=(Any):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
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+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef###" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="##():Int"></a>
+      <a id="##():Int"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport@##():Int" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#==" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="==(x$1:Any):Boolean"></a>
+      <a id="==(Any):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport@==(x$1:Any):Boolean" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.Any#asInstanceOf" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="asInstanceOf[T0]:T0"></a>
+      <a id="asInstanceOf[T0]:T0"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">asInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <span class="extype" name="scala.Any.asInstanceOf.T0">T0</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport@asInstanceOf[T0]:T0" title="Permalink" target="_top">
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+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="scala.AnyRef#clone" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="clone():Object"></a>
+      <a id="clone():AnyRef"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport@clone():Object" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
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+      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../java$lang.html" class="extype" name="java.lang">java.lang</a>] </dd><dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.CloneNotSupportedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#eq" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="eq(x$1:AnyRef):Boolean"></a>
+      <a id="eq(AnyRef):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#equals" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="equals(x$1:Any):Boolean"></a>
+      <a id="equals(Any):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport@equals(x$1:Any):Boolean" title="Permalink" target="_top">
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+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#finalize" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="finalize():Unit"></a>
+      <a id="finalize():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport@finalize():Unit" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../java$lang.html" class="extype" name="java.lang">java.lang</a>] </dd><dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="symbol">classOf[java.lang.Throwable]</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#getClass" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="getClass():Class[_]"></a>
+      <a id="getClass():Class[_]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">getClass</span><span class="params">()</span><span class="result">: <span class="extype" name="java.lang.Class">Class</span>[_]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport@getClass():Class[_]" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#hashCode" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="hashCode():Int"></a>
+      <a id="hashCode():Int"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport@hashCode():Int" title="Permalink" target="_top">
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.Any#isInstanceOf" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="isInstanceOf[T0]:Boolean"></a>
+      <a id="isInstanceOf[T0]:Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="org.apache.predictionio.akkahttpjson4s.Json4sSupport#marshaller" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="marshaller[A&lt;:AnyRef](implicitserialization:org.json4s.Serialization,implicitformats:org.json4s.Formats,implicitshouldWritePretty:org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty):akka.http.scaladsl.marshalling.ToEntityMarshaller[A]"></a>
+      <a id="marshaller[A&lt;:AnyRef](Serialization,Formats,ShouldWritePretty):ToEntityMarshaller[A]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">implicit </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">marshaller</span><span class="tparams">[<span name="A">A &lt;: <span class="extype" name="scala.AnyRef">AnyRef</span></span>]</span><span class="params">(<span class="implicit">implicit </span><span name="serialization">serialization: <span class="extype" name="org.json4s.Serialization">Serialization</span></span>, <span name="formats">formats: <span class="extype" name="org.json4s.Formats">Formats</span></span>, <span name="shouldWritePretty">shouldWritePretty: <a href="Json4sSupport$$ShouldWritePretty.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty">ShouldWritePretty</a> = <span class="symbol"><span class="name"><a href="Json4sSupport$.html">ShouldWritePretty.False</a></span></span></span>)</span><span class="result">: <span class="extype" name="akka.http.scaladsl.marshalling.ToEntityMarshaller">ToEntityMarshaller</span>[<span class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport.marshaller.A">A</span>]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport@marshaller[A&lt;:AnyRef](implicitserialization:org.json4s.Serialization,implicitformats:org.json4s.Formats,implicitshouldWritePretty:org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty):akka.http.scaladsl.marshalling.ToEntityMarshaller[A]" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt"><code>A</code> =&gt; HTTP entity
+</p><div class="fullcomment"><div class="comment cmt"><p><code>A</code> =&gt; HTTP entity
+</p></div><dl class="paramcmts block"><dt class="tparam">A</dt><dd class="cmt"><p>type to encode, must be upper bounded by <code>AnyRef</code></p></dd><dt>returns</dt><dd class="cmt"><p>marshaller for any <code>A</code> value</p></dd></dl></div>
+    </li><li name="org.apache.predictionio.akkahttpjson4s.Json4sSupport#mediaTypes" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="mediaTypes:scala.collection.immutable.Seq[akka.http.scaladsl.model.MediaType.WithFixedCharset]"></a>
+      <a id="mediaTypes:Seq[WithFixedCharset]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">mediaTypes</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.collection.immutable.Seq" class="extype" target="_top">Seq</a>[<span class="extype" name="akka.http.scaladsl.model.MediaType.WithFixedCharset">WithFixedCharset</span>]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport@mediaTypes:scala.collection.immutable.Seq[akka.http.scaladsl.model.MediaType.WithFixedCharset]" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="scala.AnyRef#ne" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="ne(x$1:AnyRef):Boolean"></a>
+      <a id="ne(AnyRef):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
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+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#notify" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="notify():Unit"></a>
+      <a id="notify():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport@notify():Unit" title="Permalink" target="_top">
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+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
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+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
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+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport@unmarshaller[A](implicitevidence$1:Manifest[A],implicitserialization:org.json4s.Serialization,implicitformats:org.json4s.Formats):akka.http.scaladsl.unmarshalling.FromEntityUnmarshaller[A]" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
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+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
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+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
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+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
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+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
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+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.Json4sSupport@wait(x$1:Long):Unit" title="Permalink" target="_top">
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
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+            </div><div class="parent" name="scala.Any">
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+      </div>
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+      <div id="tooltip"></div>
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diff --git a/api/current/org/apache/predictionio/akkahttpjson4s/package.html b/api/current/org/apache/predictionio/akkahttpjson4s/package.html
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@@ -0,0 +1,140 @@
+<!DOCTYPE html >
+<html>
+        <head>
+          <title>akkahttpjson4s - PredictionIO Scala API 0.14.0 - org.apache.predictionio.akkahttpjson4s</title>
+          <meta name="description" content="akkahttpjson4s - PredictionIO Scala API 0.14.0 - org.apache.predictionio.akkahttpjson4s" />
+          <meta name="keywords" content="akkahttpjson4s PredictionIO Scala API 0.14.0 org.apache.predictionio.akkahttpjson4s" />
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+        <body class="value">
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+        <img alt="Package" src="../../../../lib/package_big.png" />
+        <p id="owner"><a href="../../../package.html" class="extype" name="org">org</a>.<a href="../../package.html" class="extype" name="org.apache">apache</a>.<a href="../package.html" class="extype" name="org.apache.predictionio">predictionio</a></p>
+        <h1>akkahttpjson4s</h1><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.package" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
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+      </div>
+
+      <h4 id="signature" class="signature">
+      <span class="modifier_kind">
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+        <div id="visbl">
+            <span class="filtertype">Visibility</span>
+            <ol><li class="public in"><span>Public</span></li><li class="all out"><span>All</span></li></ol>
+          </div>
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+
+      <div id="template">
+        <div id="allMembers">
+        
+
+        <div id="types" class="types members">
+              <h3>Type Members</h3>
+              <ol><li name="org.apache.predictionio.akkahttpjson4s.Json4sSupport" visbl="pub" data-isabs="true" fullComment="yes" group="Ungrouped">
+      <a id="Json4sSupportextendsAnyRef"></a>
+      <a id="Json4sSupport:Json4sSupport"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">trait</span>
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+      <span class="symbol">
+        <a href="Json4sSupport.html"><span class="name">Json4sSupport</span></a><span class="result"> extends <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.package@Json4sSupportextendsAnyRef" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">Automatic to and from JSON marshalling/unmarshalling using an in-scope *Json4s* protocol.</p><div class="fullcomment"><div class="comment cmt"><p>Automatic to and from JSON marshalling/unmarshalling using an in-scope *Json4s* protocol.</p><p>Pretty printing is enabled if an implicit <a href="Json4sSupport$$ShouldWritePretty$$True$.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty.True">Json4sSupport.ShouldWritePretty.True</a> is in scope.
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+
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+      <a href="../../../../index.html#org.apache.predictionio.akkahttpjson4s.package@Json4sSupport" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">Automatic to and from JSON marshalling/unmarshalling using an in-scope *Json4s* protocol.</p><div class="fullcomment"><div class="comment cmt"><p>Automatic to and from JSON marshalling/unmarshalling using an in-scope *Json4s* protocol.</p><p>Pretty printing is enabled if an implicit <a href="Json4sSupport$$ShouldWritePretty$$True$.html" class="extype" name="org.apache.predictionio.akkahttpjson4s.Json4sSupport.ShouldWritePretty.True">Json4sSupport.ShouldWritePretty.True</a> is in scope.
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-          <meta name="keywords" content="AverageMetric PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.AverageMetric" />
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           <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>Returns the global average of the score returned by the calculate method.
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@@ -180,7 +180,7 @@
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@@ -214,7 +214,7 @@
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@@ -248,7 +248,7 @@
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@@ -271,7 +271,7 @@
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diff --git a/api/current/org/apache/predictionio/controller/CustomQuerySerializer.html b/api/current/org/apache/predictionio/controller/CustomQuerySerializer.html
index 125b144..627f8c1 100644
--- a/api/current/org/apache/predictionio/controller/CustomQuerySerializer.html
+++ b/api/current/org/apache/predictionio/controller/CustomQuerySerializer.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
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-          <meta name="keywords" content="CustomQuerySerializer PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.CustomQuerySerializer" />
+          <title>CustomQuerySerializer - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.CustomQuerySerializer</title>
+          <meta name="description" content="CustomQuerySerializer - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.CustomQuerySerializer" />
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@@ -57,7 +57,7 @@
 in the trait to enable the custom serializer.
 </p></div><div class="toggleContainer block">
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+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -180,7 +180,7 @@
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@@ -277,7 +277,7 @@
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@@ -315,7 +315,7 @@
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@@ -366,7 +366,7 @@
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@@ -440,7 +440,7 @@
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@@ -463,7 +463,7 @@
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@@ -512,9 +512,9 @@
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+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/controller/Deployment.html b/api/current/org/apache/predictionio/controller/Deployment.html
index 9b4ed71..0533a08 100644
--- a/api/current/org/apache/predictionio/controller/Deployment.html
+++ b/api/current/org/apache/predictionio/controller/Deployment.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>Deployment - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.Deployment</title>
-          <meta name="description" content="Deployment - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.Deployment" />
-          <meta name="keywords" content="Deployment PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.Deployment" />
+          <title>Deployment - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.Deployment</title>
+          <meta name="description" content="Deployment - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.Deployment" />
+          <meta name="keywords" content="Deployment PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.Deployment" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -52,7 +52,7 @@
           <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>Defines a deployment that contains an <a href="Engine.html" class="extype" name="org.apache.predictionio.controller.Engine">Engine</a>
 </p></div><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="EngineFactory.html" class="extype" name="org.apache.predictionio.controller.EngineFactory">EngineFactory</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="EngineFactory.html" class="extype" name="org.apache.predictionio.controller.EngineFactory">EngineFactory</a>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
         </div><div class="toggleContainer block">
             <span class="toggle">Known Subclasses</span>
             <div class="subClasses hiddenContent"><a href="Evaluation.html" class="extype" name="org.apache.predictionio.controller.Evaluation">Evaluation</a>, <a href="../workflow/FakeRun.html" class="extype" name="org.apache.predictionio.workflow.FakeRun">FakeRun</a></div>
@@ -107,7 +107,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Deployment@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -124,7 +124,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Deployment@##():Int" title="Permalink" target="_top">
@@ -141,7 +141,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Deployment@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -209,7 +209,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Deployment@clone():Object" title="Permalink" target="_top">
@@ -249,7 +249,7 @@
         <span class="kind">var</span>
       </span>
       <span class="symbol">
-        <span class="name">engineSet</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">engineSet</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Deployment@engineSet:Boolean" title="Permalink" target="_top">
@@ -266,7 +266,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: engine_$eq" class="name">engine_=</span><span class="tparams">[<span name="EI">EI</span>, <span name="Q">Q</span>, <span name="P">P</span>, <span name="A">A</span>]</span><span class="params">(<span name="engine">engine: <a href="../core/BaseEngine.html" class="extype" name="org.apache.predictionio.core.BaseEngine">BaseEngine</a>[<span class="extype" name="org.apache.predictionio.controller.Deployment.engine_=.EI">EI</span>, <span class="extype" name="org.apache.predictionio.controller.Deployment.engine_=.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.Deployment.engine_=.P">P</span>, <span class="extype" name="org.apache.predictionio.controller.Deployment.engine_=.A">A</span>]</span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span title="gt4s: engine_$eq" class="name">engine_=</span><span class="tparams">[<span name="EI">EI</span>, <span name="Q">Q</span>, <span name="P">P</span>, <span name="A">A</span>]</span><span class="params">(<span name="engine">engine: <a href="../core/BaseEngine.html" class="extype" name="org.apache.predictionio.core.BaseEngine">BaseEngine</a>[<span class="extype" name="org.apache.predictionio.controller.Deployment.engine_=.EI">EI</span>, <span class="extype" name="org.apache.predictionio.controller.Deployment.engine_=.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.Deployment.engine_=.P">P</span>, <span class="extype" name="org.apache.predictionio.controller.Deployment.engine_=.A">A</span>]</span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Deployment@engine_=[EI,Q,P,A](engine:org.apache.predictionio.core.BaseEngine[EI,Q,P,A]):Unit" title="Permalink" target="_top">
@@ -285,7 +285,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Deployment@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -302,7 +302,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Deployment@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -319,7 +319,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Deployment@finalize():Unit" title="Permalink" target="_top">
@@ -359,7 +359,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Deployment@hashCode():Int" title="Permalink" target="_top">
@@ -376,7 +376,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Deployment@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -393,7 +393,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Deployment@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -410,7 +410,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Deployment@notify():Unit" title="Permalink" target="_top">
@@ -427,7 +427,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Deployment@notifyAll():Unit" title="Permalink" target="_top">
@@ -478,7 +478,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Deployment@wait():Unit" title="Permalink" target="_top">
@@ -501,7 +501,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Deployment@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -524,7 +524,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Deployment@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -550,9 +550,9 @@
         <div class="parent" name="org.apache.predictionio.controller.EngineFactory">
               <h3>Inherited from <a href="EngineFactory.html" class="extype" name="org.apache.predictionio.controller.EngineFactory">EngineFactory</a></h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/controller/EmptyParams.html b/api/current/org/apache/predictionio/controller/EmptyParams.html
index 3f60583..bb51445 100644
--- a/api/current/org/apache/predictionio/controller/EmptyParams.html
+++ b/api/current/org/apache/predictionio/controller/EmptyParams.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>EmptyParams - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.EmptyParams</title>
-          <meta name="description" content="EmptyParams - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.EmptyParams" />
-          <meta name="keywords" content="EmptyParams PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.EmptyParams" />
+          <title>EmptyParams - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.EmptyParams</title>
+          <meta name="description" content="EmptyParams - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.EmptyParams" />
+          <meta name="keywords" content="EmptyParams PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.EmptyParams" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -45,14 +45,14 @@
         <span class="kind">case class</span>
       </span>
       <span class="symbol">
-        <span class="name">EmptyParams</span><span class="params">()</span><span class="result"> extends <a href="Params.html" class="extype" name="org.apache.predictionio.controller.Params">Params</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <span class="name">EmptyParams</span><span class="params">()</span><span class="result"> extends <a href="Params.html" class="extype" name="org.apache.predictionio.controller.Params">Params</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4>
       
           <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>A concrete implementation of <a href="Params.html" class="extype" name="org.apache.predictionio.controller.Params">Params</a> representing empty parameters.
 </p></div><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Equals" class="extype" target="_top">Equals</a>, <a href="Params.html" class="extype" name="org.apache.predictionio.controller.Params">Params</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Equals" class="extype" target="_top">Equals</a>, <a href="Params.html" class="extype" name="org.apache.predictionio.controller.Params">Params</a>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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@@ -124,7 +124,7 @@
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+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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       </h4><span class="permalink">
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@@ -215,7 +215,7 @@
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-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -232,7 +232,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -272,7 +272,7 @@
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+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -323,7 +323,7 @@
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@@ -374,7 +374,7 @@
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@@ -397,7 +397,7 @@
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       <a href="../../../../index.html#org.apache.predictionio.controller.EmptyParams@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -420,7 +420,7 @@
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+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EmptyParams@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -444,19 +444,19 @@
 
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+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a></h3>
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Equals" class="extype" target="_top">Equals</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Equals" class="extype" target="_top">Equals</a></h3>
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               <h3>Inherited from <a href="Params.html" class="extype" name="org.apache.predictionio.controller.Params">Params</a></h3>
             </div><div class="parent" name="scala.Serializable">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/controller/Engine$$DataSourceMap$.html b/api/current/org/apache/predictionio/controller/Engine$$DataSourceMap$.html
index ff81c75..9b7aca8 100644
--- a/api/current/org/apache/predictionio/controller/Engine$$DataSourceMap$.html
+++ b/api/current/org/apache/predictionio/controller/Engine$$DataSourceMap$.html
@@ -1,9 +1,9 @@
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 <html>
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-          <meta name="keywords" content="DataSourceMap PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.Engine.DataSourceMap" />
+          <title>DataSourceMap - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.Engine.DataSourceMap</title>
+          <meta name="description" content="DataSourceMap - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.Engine.DataSourceMap" />
+          <meta name="keywords" content="DataSourceMap PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.Engine.DataSourceMap" />
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@@ -55,7 +55,7 @@
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+          <div class="superTypes hiddenContent"><span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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@@ -107,7 +107,7 @@
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+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -215,7 +215,7 @@
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-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -232,7 +232,7 @@
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@@ -249,7 +249,7 @@
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@@ -289,7 +289,7 @@
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+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -306,7 +306,7 @@
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+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -340,7 +340,7 @@
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@@ -357,7 +357,7 @@
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@@ -374,7 +374,7 @@
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@@ -425,7 +425,7 @@
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@@ -448,7 +448,7 @@
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@@ -471,7 +471,7 @@
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+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -495,9 +495,9 @@
 
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+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
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+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/controller/Engine$$DataSourceMap.html b/api/current/org/apache/predictionio/controller/Engine$$DataSourceMap.html
index 776668d..890dd82 100644
--- a/api/current/org/apache/predictionio/controller/Engine$$DataSourceMap.html
+++ b/api/current/org/apache/predictionio/controller/Engine$$DataSourceMap.html
@@ -1,9 +1,9 @@
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@@ -47,7 +47,7 @@
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@@ -56,7 +56,7 @@
 using this class directly is not necessary.
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@@ -145,7 +145,7 @@
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@@ -162,7 +162,7 @@
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@@ -179,7 +179,7 @@
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@@ -213,7 +213,7 @@
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@@ -236,7 +236,7 @@
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@@ -327,7 +327,7 @@
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@@ -395,7 +395,7 @@
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@@ -446,7 +446,7 @@
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@@ -469,7 +469,7 @@
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+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -471,7 +471,7 @@
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-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -495,9 +495,9 @@
 
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+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/controller/Engine$$ServingMap.html b/api/current/org/apache/predictionio/controller/Engine$$ServingMap.html
index 6f7cd88..69e606f 100644
--- a/api/current/org/apache/predictionio/controller/Engine$$ServingMap.html
+++ b/api/current/org/apache/predictionio/controller/Engine$$ServingMap.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
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-          <meta name="description" content="ServingMap - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.Engine.ServingMap" />
-          <meta name="keywords" content="ServingMap PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.Engine.ServingMap" />
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+          <meta name="description" content="ServingMap - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.Engine.ServingMap" />
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           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -47,7 +47,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">ServingMap</span><span class="tparams">[<span name="Q">Q</span>, <span name="P">P</span>]</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">ServingMap</span><span class="tparams">[<span name="Q">Q</span>, <span name="P">P</span>]</span><span class="result"> extends <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -56,7 +56,7 @@
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+          <div class="superTypes hiddenContent"><span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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@@ -145,7 +145,7 @@
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@@ -162,7 +162,7 @@
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@@ -179,7 +179,7 @@
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@@ -213,7 +213,7 @@
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-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -236,7 +236,7 @@
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+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -253,7 +253,7 @@
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+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -270,7 +270,7 @@
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       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -310,7 +310,7 @@
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+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -327,7 +327,7 @@
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-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -361,7 +361,7 @@
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+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -378,7 +378,7 @@
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+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -395,7 +395,7 @@
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+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -446,7 +446,7 @@
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-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.Engine$$ServingMap@wait():Unit" title="Permalink" target="_top">
@@ -469,7 +469,7 @@
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-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -492,7 +492,7 @@
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-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.Engine$$ServingMap@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -516,9 +516,9 @@
 
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diff --git a/api/current/org/apache/predictionio/controller/Engine$.html b/api/current/org/apache/predictionio/controller/Engine$.html
index 7441f92..2dab39e 100644
--- a/api/current/org/apache/predictionio/controller/Engine$.html
+++ b/api/current/org/apache/predictionio/controller/Engine$.html
@@ -1,9 +1,9 @@
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-          <meta name="keywords" content="Engine PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.Engine" />
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@@ -47,7 +47,7 @@
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@@ -55,7 +55,7 @@
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@@ -103,7 +103,7 @@
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   }
 }</pre></div><dl class="paramcmts block"><dt class="tparam">TD</dt><dd class="cmt"><p>Training data class.</p></dd><dt class="tparam">EI</dt><dd class="cmt"><p>Evaluation info class.</p></dd><dt class="tparam">PD</dt><dd class="cmt"><p>Prepared data class.</p></dd><dt class="tparam">Q</dt><dd class="cmt"><p>Input query class.</p></dd><dt class="tparam">P</dt><dd class="cmt"><p>Output prediction class.</p></dd><dt class="tparam">A</dt><dd class="cmt"><p>Actual value class.</p></dd></dl><dl class="attributes block"> <dt>See also</dt><dd><span class="cmt"><p><a href="EngineFactory.html" class="extype" name="org.apache.predictionio.controller.EngineFactory">EngineFactory</a></p></span></dd></dl><div class="toggleContainer block">
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+          <div class="superTypes hiddenContent"><a href="../core/BaseEngine.html" class="extype" name="org.apache.predictionio.core.BaseEngine">BaseEngine</a>[<span class="extype" name="org.apache.predictionio.controller.Engine.EI">EI</span>, <span class="extype" name="org.apache.predictionio.controller.Engine.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.Engine.P">P</span>, <span class="extype" name="org.apache.predictionio.controller.Engine.A">A</span>], <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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@@ -179,7 +179,7 @@
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+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -196,7 +196,7 @@
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       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Engine@##():Int" title="Permalink" target="_top">
@@ -213,7 +213,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
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@@ -290,7 +290,7 @@
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       </span>
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-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Engine@clone():Object" title="Permalink" target="_top">
@@ -347,7 +347,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Engine@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -364,7 +364,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Engine@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -402,7 +402,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Engine@finalize():Unit" title="Permalink" target="_top">
@@ -442,7 +442,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.Engine@hashCode():Int" title="Permalink" target="_top">
@@ -459,7 +459,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Engine@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -515,7 +515,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Engine@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -532,7 +532,7 @@
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       </span>
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-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Engine@notify():Unit" title="Permalink" target="_top">
@@ -549,7 +549,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Engine@notifyAll():Unit" title="Permalink" target="_top">
@@ -634,7 +634,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">train</span><span class="params">(<span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>, <span name="engineParams">engineParams: <a href="EngineParams.html" class="extype" name="org.apache.predictionio.controller.EngineParams">EngineParams</a></span>, <span name="engineInstanceId">engineInstanceId: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <a href="../workflow/WorkflowParams.html" class="extype" name="org.apache.predictionio.workflow.WorkflowParams">WorkflowParams</a></span>)</span><span class="result">: <span class="extype" name="scala.Seq">Seq</span>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a>]</span>
+        <span class="name">train</span><span class="params">(<span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>, <span name="engineParams">engineParams: <a href="EngineParams.html" class="extype" name="org.apache.predictionio.controller.EngineParams">EngineParams</a></span>, <span name="engineInstanceId">engineInstanceId: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <a href="../workflow/WorkflowParams.html" class="extype" name="org.apache.predictionio.workflow.WorkflowParams">WorkflowParams</a></span>)</span><span class="result">: <span class="extype" name="scala.Seq">Seq</span>[<span class="extype" name="scala.Any">Any</span>]</span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Engine@train(sc:org.apache.spark.SparkContext,engineParams:org.apache.predictionio.controller.EngineParams,engineInstanceId:String,params:org.apache.predictionio.workflow.WorkflowParams):Seq[Any]" title="Permalink" target="_top">
@@ -652,7 +652,7 @@
         <span class="kind">def</span>
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-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Engine@wait():Unit" title="Permalink" target="_top">
@@ -675,7 +675,7 @@
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       </span>
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-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Engine@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -698,7 +698,7 @@
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-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.Engine@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -724,13 +724,13 @@
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             </div><div class="parent" name="scala.Serializable">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
             </div><div class="parent" name="java.io.Serializable">
               <h3>Inherited from <span class="extype" name="java.io.Serializable">Serializable</span></h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/controller/EngineFactory.html b/api/current/org/apache/predictionio/controller/EngineFactory.html
index ada7e6e..30c7aa9 100644
--- a/api/current/org/apache/predictionio/controller/EngineFactory.html
+++ b/api/current/org/apache/predictionio/controller/EngineFactory.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>EngineFactory - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.EngineFactory</title>
-          <meta name="description" content="EngineFactory - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.EngineFactory" />
-          <meta name="keywords" content="EngineFactory PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.EngineFactory" />
+          <title>EngineFactory - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.EngineFactory</title>
+          <meta name="description" content="EngineFactory - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.EngineFactory" />
+          <meta name="keywords" content="EngineFactory PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.EngineFactory" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
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@@ -45,7 +45,7 @@
         <span class="kind">class</span>
       </span>
       <span class="symbol">
-        <span class="name">EngineFactory</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">EngineFactory</span><span class="result"> extends <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4>
       
@@ -54,10 +54,10 @@
 and return an <a href="Engine.html" class="extype" name="org.apache.predictionio.controller.Engine">Engine</a>.
 </p></div><div class="toggleContainer block">
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-          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
         </div><div class="toggleContainer block">
             <span class="toggle">Known Subclasses</span>
-            <div class="subClasses hiddenContent"><a href="Deployment.html" class="extype" name="org.apache.predictionio.controller.Deployment">Deployment</a>, <a href="Evaluation.html" class="extype" name="org.apache.predictionio.controller.Evaluation">Evaluation</a>, <a href="../workflow/FakeRun.html" class="extype" name="org.apache.predictionio.workflow.FakeRun">FakeRun</a>, <a href="IEngineFactory.html" class="extype" name="org.apache.predictionio.controller.IEngineFactory">IEngineFactory</a></div>
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@@ -149,7 +149,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -166,7 +166,7 @@
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       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -183,7 +183,7 @@
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       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -217,7 +217,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
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@@ -257,7 +257,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -274,7 +274,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -291,7 +291,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -331,7 +331,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.EngineFactory@hashCode():Int" title="Permalink" target="_top">
@@ -348,7 +348,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineFactory@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -365,7 +365,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineFactory@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -382,7 +382,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.EngineFactory@notify():Unit" title="Permalink" target="_top">
@@ -399,7 +399,7 @@
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-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineFactory@notifyAll():Unit" title="Permalink" target="_top">
@@ -450,7 +450,7 @@
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-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineFactory@wait():Unit" title="Permalink" target="_top">
@@ -473,7 +473,7 @@
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-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.EngineFactory@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -496,7 +496,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.EngineFactory@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -520,9 +520,9 @@
 
         <div id="inheritedMembers">
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/controller/EngineParams$.html b/api/current/org/apache/predictionio/controller/EngineParams$.html
index 3990fc0..63ec2a3 100644
--- a/api/current/org/apache/predictionio/controller/EngineParams$.html
+++ b/api/current/org/apache/predictionio/controller/EngineParams$.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>EngineParams - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.EngineParams</title>
-          <meta name="description" content="EngineParams - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.EngineParams" />
-          <meta name="keywords" content="EngineParams PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.EngineParams" />
+          <title>EngineParams - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.EngineParams</title>
+          <meta name="description" content="EngineParams - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.EngineParams" />
+          <meta name="keywords" content="EngineParams PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.EngineParams" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -47,14 +47,14 @@
         <span class="kind">object</span>
       </span>
       <span class="symbol">
-        <span class="name">EngineParams</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <span class="name">EngineParams</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4>
       
           <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>Companion object for creating <a href="EngineParams.html" class="extype" name="org.apache.predictionio.controller.EngineParams">EngineParams</a> instances.
 </p></div><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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@@ -106,7 +106,7 @@
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-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParams$@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -123,7 +123,7 @@
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       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParams$@##():Int" title="Permalink" target="_top">
@@ -140,7 +140,7 @@
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       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -192,7 +192,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParams$@clone():Object" title="Permalink" target="_top">
@@ -215,7 +215,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -232,7 +232,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParams$@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -249,7 +249,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParams$@finalize():Unit" title="Permalink" target="_top">
@@ -289,7 +289,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParams$@hashCode():Int" title="Permalink" target="_top">
@@ -306,7 +306,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParams$@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -323,7 +323,7 @@
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       </span>
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-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParams$@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -340,7 +340,7 @@
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-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParams$@notify():Unit" title="Permalink" target="_top">
@@ -357,7 +357,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParams$@notifyAll():Unit" title="Permalink" target="_top">
@@ -408,7 +408,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParams$@wait():Unit" title="Permalink" target="_top">
@@ -431,7 +431,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParams$@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -454,7 +454,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParams$@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -478,13 +478,13 @@
 
         <div id="inheritedMembers">
         <div class="parent" name="scala.Serializable">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
             </div><div class="parent" name="java.io.Serializable">
               <h3>Inherited from <span class="extype" name="java.io.Serializable">Serializable</span></h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/controller/EngineParams.html b/api/current/org/apache/predictionio/controller/EngineParams.html
index d13df9d..da517a8 100644
--- a/api/current/org/apache/predictionio/controller/EngineParams.html
+++ b/api/current/org/apache/predictionio/controller/EngineParams.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>EngineParams - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.EngineParams</title>
-          <meta name="description" content="EngineParams - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.EngineParams" />
-          <meta name="keywords" content="EngineParams PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.EngineParams" />
+          <title>EngineParams - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.EngineParams</title>
+          <meta name="description" content="EngineParams - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.EngineParams" />
+          <meta name="keywords" content="EngineParams PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.EngineParams" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -47,14 +47,14 @@
         <span class="kind">class</span>
       </span>
       <span class="symbol">
-        <span class="name">EngineParams</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <span class="name">EngineParams</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4>
       
           <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>This class serves as a logical grouping of all required engine's parameters.
 </p></div><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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             <div class="subClasses hiddenContent"><a href="SimpleEngineParams.html" class="extype" name="org.apache.predictionio.controller.SimpleEngineParams">SimpleEngineParams</a></div>
@@ -148,7 +148,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
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@@ -165,7 +165,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParams@##():Int" title="Permalink" target="_top">
@@ -182,7 +182,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -233,7 +233,7 @@
         <span class="kind">def</span>
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-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParams@clone():Object" title="Permalink" target="_top">
@@ -290,7 +290,7 @@
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-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -307,7 +307,7 @@
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-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -324,7 +324,7 @@
         <span class="kind">def</span>
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       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -364,7 +364,7 @@
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-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -381,7 +381,7 @@
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       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -398,7 +398,7 @@
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-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -415,7 +415,7 @@
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-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -432,7 +432,7 @@
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-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParams@notifyAll():Unit" title="Permalink" target="_top">
@@ -517,7 +517,7 @@
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-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParams@wait():Unit" title="Permalink" target="_top">
@@ -540,7 +540,7 @@
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-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParams@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -563,7 +563,7 @@
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-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
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@@ -587,13 +587,13 @@
 
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
             </div><div class="parent" name="java.io.Serializable">
               <h3>Inherited from <span class="extype" name="java.io.Serializable">Serializable</span></h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/controller/EngineParamsGenerator.html b/api/current/org/apache/predictionio/controller/EngineParamsGenerator.html
index 3671b7e..02bb594 100644
--- a/api/current/org/apache/predictionio/controller/EngineParamsGenerator.html
+++ b/api/current/org/apache/predictionio/controller/EngineParamsGenerator.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>EngineParamsGenerator - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.EngineParamsGenerator</title>
-          <meta name="description" content="EngineParamsGenerator - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.EngineParamsGenerator" />
-          <meta name="keywords" content="EngineParamsGenerator PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.EngineParamsGenerator" />
+          <title>EngineParamsGenerator - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.EngineParamsGenerator</title>
+          <meta name="description" content="EngineParamsGenerator - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.EngineParamsGenerator" />
+          <meta name="keywords" content="EngineParamsGenerator PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.EngineParamsGenerator" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -45,7 +45,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">EngineParamsGenerator</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">EngineParamsGenerator</span><span class="result"> extends <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -53,7 +53,7 @@
 command line argument.
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-          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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@@ -108,7 +108,7 @@
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+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -125,7 +125,7 @@
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+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -142,7 +142,7 @@
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+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -176,7 +176,7 @@
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+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -216,7 +216,7 @@
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-        <span title="gt4s: engineParamsList_$eq" class="name">engineParamsList_=</span><span class="params">(<span name="l">l: <span class="extype" name="scala.Seq">Seq</span>[<a href="EngineParams.html" class="extype" name="org.apache.predictionio.controller.EngineParams">EngineParams</a>]</span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span title="gt4s: engineParamsList_$eq" class="name">engineParamsList_=</span><span class="params">(<span name="l">l: <span class="extype" name="scala.Seq">Seq</span>[<a href="EngineParams.html" class="extype" name="org.apache.predictionio.controller.EngineParams">EngineParams</a>]</span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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-        <span class="name">epListSet</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">epListSet</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -267,7 +267,7 @@
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-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
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@@ -284,7 +284,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
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@@ -301,7 +301,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -341,7 +341,7 @@
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+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -358,7 +358,7 @@
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+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
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+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParamsGenerator@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -392,7 +392,7 @@
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-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParamsGenerator@notify():Unit" title="Permalink" target="_top">
@@ -409,7 +409,7 @@
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+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParamsGenerator@notifyAll():Unit" title="Permalink" target="_top">
@@ -460,7 +460,7 @@
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       </span>
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-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParamsGenerator@wait():Unit" title="Permalink" target="_top">
@@ -483,7 +483,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
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@@ -506,7 +506,7 @@
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       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.EngineParamsGenerator@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -530,9 +530,9 @@
 
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/controller/Evaluation.html b/api/current/org/apache/predictionio/controller/Evaluation.html
index a654963..96d961b 100644
--- a/api/current/org/apache/predictionio/controller/Evaluation.html
+++ b/api/current/org/apache/predictionio/controller/Evaluation.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>Evaluation - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.Evaluation</title>
-          <meta name="description" content="Evaluation - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.Evaluation" />
-          <meta name="keywords" content="Evaluation PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.Evaluation" />
+          <title>Evaluation - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.Evaluation</title>
+          <meta name="description" content="Evaluation - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.Evaluation" />
+          <meta name="keywords" content="Evaluation PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.Evaluation" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -53,7 +53,7 @@
 argument.
 </p></div><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="Deployment.html" class="extype" name="org.apache.predictionio.controller.Deployment">Deployment</a>, <a href="EngineFactory.html" class="extype" name="org.apache.predictionio.controller.EngineFactory">EngineFactory</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
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         </div><div class="toggleContainer block">
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@@ -108,7 +108,7 @@
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       </span>
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diff --git a/api/current/org/apache/predictionio/controller/IEngineFactory.html b/api/current/org/apache/predictionio/controller/IEngineFactory.html
index a158b2a..77fae32 100644
--- a/api/current/org/apache/predictionio/controller/IEngineFactory.html
+++ b/api/current/org/apache/predictionio/controller/IEngineFactory.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>IEngineFactory - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.IEngineFactory</title>
-          <meta name="description" content="IEngineFactory - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.IEngineFactory" />
-          <meta name="keywords" content="IEngineFactory PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.IEngineFactory" />
+          <title>IEngineFactory - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.IEngineFactory</title>
+          <meta name="description" content="IEngineFactory - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.IEngineFactory" />
+          <meta name="keywords" content="IEngineFactory PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.IEngineFactory" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -55,7 +55,7 @@
               
         </dd><dt>Deprecated</dt><dd class="cmt"><p><i>(Since version 0.9.2)</i> Use EngineFactory instead.</p></dd></dl><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="EngineFactory.html" class="extype" name="org.apache.predictionio.controller.EngineFactory">EngineFactory</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="EngineFactory.html" class="extype" name="org.apache.predictionio.controller.EngineFactory">EngineFactory</a>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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@@ -127,7 +127,7 @@
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+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
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@@ -144,7 +144,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IEngineFactory@##():Int" title="Permalink" target="_top">
@@ -161,7 +161,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IEngineFactory@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -195,7 +195,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IEngineFactory@clone():Object" title="Permalink" target="_top">
@@ -235,7 +235,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IEngineFactory@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -252,7 +252,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IEngineFactory@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -269,7 +269,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IEngineFactory@finalize():Unit" title="Permalink" target="_top">
@@ -309,7 +309,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IEngineFactory@hashCode():Int" title="Permalink" target="_top">
@@ -326,7 +326,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IEngineFactory@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -343,7 +343,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IEngineFactory@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -360,7 +360,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IEngineFactory@notify():Unit" title="Permalink" target="_top">
@@ -377,7 +377,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IEngineFactory@notifyAll():Unit" title="Permalink" target="_top">
@@ -428,7 +428,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IEngineFactory@wait():Unit" title="Permalink" target="_top">
@@ -451,7 +451,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IEngineFactory@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -474,7 +474,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IEngineFactory@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -500,9 +500,9 @@
         <div class="parent" name="org.apache.predictionio.controller.EngineFactory">
               <h3>Inherited from <a href="EngineFactory.html" class="extype" name="org.apache.predictionio.controller.EngineFactory">EngineFactory</a></h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/controller/IFSPersistentModel.html b/api/current/org/apache/predictionio/controller/IFSPersistentModel.html
index 4485d14..79ebb71 100644
--- a/api/current/org/apache/predictionio/controller/IFSPersistentModel.html
+++ b/api/current/org/apache/predictionio/controller/IFSPersistentModel.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>IFSPersistentModel - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.IFSPersistentModel</title>
-          <meta name="description" content="IFSPersistentModel - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.IFSPersistentModel" />
-          <meta name="keywords" content="IFSPersistentModel PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.IFSPersistentModel" />
+          <title>IFSPersistentModel - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.IFSPersistentModel</title>
+          <meta name="description" content="IFSPersistentModel - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.IFSPersistentModel" />
+          <meta name="keywords" content="IFSPersistentModel PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.IFSPersistentModel" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -55,7 +55,7 @@
               
         </dd><dt>Deprecated</dt><dd class="cmt"><p><i>(Since version 0.9.2)</i> Use LocalFileSystemPersistentModel instead.</p></dd></dl><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="LocalFileSystemPersistentModel.html" class="extype" name="org.apache.predictionio.controller.LocalFileSystemPersistentModel">LocalFileSystemPersistentModel</a>[<span class="extype" name="org.apache.predictionio.controller.IFSPersistentModel.AP">AP</span>], <a href="PersistentModel.html" class="extype" name="org.apache.predictionio.controller.PersistentModel">PersistentModel</a>[<span class="extype" name="org.apache.predictionio.controller.IFSPersistentModel.AP">AP</span>], <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="LocalFileSystemPersistentModel.html" class="extype" name="org.apache.predictionio.controller.LocalFileSystemPersistentModel">LocalFileSystemPersistentModel</a>[<span class="extype" name="org.apache.predictionio.controller.IFSPersistentModel.AP">AP</span>], <a href="PersistentModel.html" class="extype" name="org.apache.predictionio.controller.PersistentModel">PersistentModel</a>[<span class="extype" name="org.apache.predictionio.controller.IFSPersistentModel.AP">AP</span>], <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
         </div></div>
         
 
@@ -107,7 +107,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModel@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -124,7 +124,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModel@##():Int" title="Permalink" target="_top">
@@ -141,7 +141,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModel@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -175,7 +175,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModel@clone():Object" title="Permalink" target="_top">
@@ -198,7 +198,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModel@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -215,7 +215,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModel@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -232,7 +232,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModel@finalize():Unit" title="Permalink" target="_top">
@@ -272,7 +272,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModel@hashCode():Int" title="Permalink" target="_top">
@@ -289,7 +289,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModel@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -306,7 +306,7 @@
         <span class="kind">def</span>
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       <span class="symbol">
-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModel@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -323,7 +323,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModel@notify():Unit" title="Permalink" target="_top">
@@ -340,7 +340,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModel@notifyAll():Unit" title="Permalink" target="_top">
@@ -357,7 +357,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">save</span><span class="params">(<span name="id">id: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <span class="extype" name="org.apache.predictionio.controller.IFSPersistentModel.AP">AP</span></span>, <span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">save</span><span class="params">(<span name="id">id: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <span class="extype" name="org.apache.predictionio.controller.IFSPersistentModel.AP">AP</span></span>, <span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModel@save(id:String,params:AP,sc:org.apache.spark.SparkContext):Boolean" title="Permalink" target="_top">
@@ -414,7 +414,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModel@wait():Unit" title="Permalink" target="_top">
@@ -437,7 +437,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModel@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -460,7 +460,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModel@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -488,9 +488,9 @@
             </div><div class="parent" name="org.apache.predictionio.controller.PersistentModel">
               <h3>Inherited from <a href="PersistentModel.html" class="extype" name="org.apache.predictionio.controller.PersistentModel">PersistentModel</a>[<span class="extype" name="org.apache.predictionio.controller.IFSPersistentModel.AP">AP</span>]</h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/controller/IFSPersistentModelLoader.html b/api/current/org/apache/predictionio/controller/IFSPersistentModelLoader.html
index ff1d7ae..a552e39 100644
--- a/api/current/org/apache/predictionio/controller/IFSPersistentModelLoader.html
+++ b/api/current/org/apache/predictionio/controller/IFSPersistentModelLoader.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>IFSPersistentModelLoader - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.IFSPersistentModelLoader</title>
-          <meta name="description" content="IFSPersistentModelLoader - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.IFSPersistentModelLoader" />
-          <meta name="keywords" content="IFSPersistentModelLoader PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.IFSPersistentModelLoader" />
+          <title>IFSPersistentModelLoader - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.IFSPersistentModelLoader</title>
+          <meta name="description" content="IFSPersistentModelLoader - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.IFSPersistentModelLoader" />
+          <meta name="keywords" content="IFSPersistentModelLoader PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.IFSPersistentModelLoader" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -55,7 +55,7 @@
               
         </dd><dt>Deprecated</dt><dd class="cmt"><p><i>(Since version 0.9.2)</i> Use LocalFileSystemPersistentModelLoader instead.</p></dd></dl><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="LocalFileSystemPersistentModelLoader.html" class="extype" name="org.apache.predictionio.controller.LocalFileSystemPersistentModelLoader">LocalFileSystemPersistentModelLoader</a>[<span class="extype" name="org.apache.predictionio.controller.IFSPersistentModelLoader.AP">AP</span>, <span class="extype" name="org.apache.predictionio.controller.IFSPersistentModelLoader.M">M</span>], <a href="PersistentModelLoader.html" class="extype" name="org.apache.predictionio.controller.PersistentModelLoader">PersistentModelLoader</a>[<span class="extype" name="org.apache.predictionio.controller.IFSPersistentModelLoader.AP">AP</span>, <span class="extype" name="org.apache.predictionio.controller.IFSPersistentModelLoader.M">M</span>], <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="LocalFileSystemPersistentModelLoader.html" class="extype" name="org.apache.predictionio.controller.LocalFileSystemPersistentModelLoader">LocalFileSystemPersistentModelLoader</a>[<span class="extype" name="org.apache.predictionio.controller.IFSPersistentModelLoader.AP">AP</span>, <span class="extype" name="org.apache.predictionio.controller.IFSPersistentModelLoader.M">M</span>], <a href="PersistentModelLoader.html" class="extype" name="org.apache.predictionio.controller.PersistentModelLoader">PersistentModelLoader</a>[<span class="extype" name="org.apache.predictionio.controller.IFSPersistentModelLoader.AP">AP</span>, <span class="extype" name="org.apache.predictionio.controller.IFSPersistentModelLoader.M">M</span>], <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
         </div></div>
         
 
@@ -107,7 +107,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModelLoader@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -124,7 +124,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModelLoader@##():Int" title="Permalink" target="_top">
@@ -141,7 +141,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModelLoader@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -158,7 +158,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">apply</span><span class="params">(<span name="id">id: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <span class="extype" name="org.apache.predictionio.controller.IFSPersistentModelLoader.AP">AP</span></span>, <span name="sc">sc: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.apache.spark.SparkContext">SparkContext</span>]</span>)</span><span class="result">: <span class="extype" name="org.apache.predictionio.controller.IFSPersistentModelLoader.M">M</span></span>
+        <span class="name">apply</span><span class="params">(<span name="id">id: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <span class="extype" name="org.apache.predictionio.controller.IFSPersistentModelLoader.AP">AP</span></span>, <span name="sc">sc: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.apache.spark.SparkContext">SparkContext</span>]</span>)</span><span class="result">: <span class="extype" name="org.apache.predictionio.controller.IFSPersistentModelLoader.M">M</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModelLoader@apply(id:String,params:AP,sc:Option[org.apache.spark.SparkContext]):M" title="Permalink" target="_top">
@@ -197,7 +197,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModelLoader@clone():Object" title="Permalink" target="_top">
@@ -220,7 +220,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModelLoader@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -237,7 +237,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModelLoader@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -254,7 +254,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModelLoader@finalize():Unit" title="Permalink" target="_top">
@@ -294,7 +294,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModelLoader@hashCode():Int" title="Permalink" target="_top">
@@ -311,7 +311,7 @@
         <span class="kind">def</span>
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       <span class="symbol">
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@@ -328,7 +328,7 @@
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@@ -345,7 +345,7 @@
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@@ -362,7 +362,7 @@
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+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -413,7 +413,7 @@
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+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.IFSPersistentModelLoader@wait():Unit" title="Permalink" target="_top">
@@ -436,7 +436,7 @@
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+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -459,7 +459,7 @@
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+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -487,9 +487,9 @@
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/controller/IPersistentModel.html b/api/current/org/apache/predictionio/controller/IPersistentModel.html
index c9d3411..6a23d26 100644
--- a/api/current/org/apache/predictionio/controller/IPersistentModel.html
+++ b/api/current/org/apache/predictionio/controller/IPersistentModel.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
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-          <meta name="description" content="IPersistentModel - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.IPersistentModel" />
-          <meta name="keywords" content="IPersistentModel PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.IPersistentModel" />
+          <title>IPersistentModel - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.IPersistentModel</title>
+          <meta name="description" content="IPersistentModel - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.IPersistentModel" />
+          <meta name="keywords" content="IPersistentModel PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.IPersistentModel" />
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       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -55,7 +55,7 @@
               
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@@ -105,7 +105,7 @@
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+        <span class="name">save</span><span class="params">(<span name="id">id: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <span class="extype" name="org.apache.predictionio.controller.IPersistentModel.AP">AP</span></span>, <span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -133,7 +133,7 @@
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+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -150,7 +150,7 @@
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+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -167,7 +167,7 @@
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@@ -201,7 +201,7 @@
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+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -224,7 +224,7 @@
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+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -241,7 +241,7 @@
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+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -258,7 +258,7 @@
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+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -298,7 +298,7 @@
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@@ -315,7 +315,7 @@
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@@ -332,7 +332,7 @@
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@@ -366,7 +366,7 @@
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@@ -417,7 +417,7 @@
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@@ -440,7 +440,7 @@
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@@ -463,7 +463,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IPersistentModel@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -489,9 +489,9 @@
         <div class="parent" name="org.apache.predictionio.controller.PersistentModel">
               <h3>Inherited from <a href="PersistentModel.html" class="extype" name="org.apache.predictionio.controller.PersistentModel">PersistentModel</a>[<span class="extype" name="org.apache.predictionio.controller.IPersistentModel.AP">AP</span>]</h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/controller/IPersistentModelLoader.html b/api/current/org/apache/predictionio/controller/IPersistentModelLoader.html
index c505e5d..1da2237 100644
--- a/api/current/org/apache/predictionio/controller/IPersistentModelLoader.html
+++ b/api/current/org/apache/predictionio/controller/IPersistentModelLoader.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>IPersistentModelLoader - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.IPersistentModelLoader</title>
-          <meta name="description" content="IPersistentModelLoader - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.IPersistentModelLoader" />
-          <meta name="keywords" content="IPersistentModelLoader PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.IPersistentModelLoader" />
+          <title>IPersistentModelLoader - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.IPersistentModelLoader</title>
+          <meta name="description" content="IPersistentModelLoader - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.IPersistentModelLoader" />
+          <meta name="keywords" content="IPersistentModelLoader PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.IPersistentModelLoader" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -55,7 +55,7 @@
               
         </dd><dt>Deprecated</dt><dd class="cmt"><p><i>(Since version 0.9.2)</i> Use PersistentModelLoader instead.</p></dd></dl><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="PersistentModelLoader.html" class="extype" name="org.apache.predictionio.controller.PersistentModelLoader">PersistentModelLoader</a>[<span class="extype" name="org.apache.predictionio.controller.IPersistentModelLoader.AP">AP</span>, <span class="extype" name="org.apache.predictionio.controller.IPersistentModelLoader.M">M</span>], <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="PersistentModelLoader.html" class="extype" name="org.apache.predictionio.controller.PersistentModelLoader">PersistentModelLoader</a>[<span class="extype" name="org.apache.predictionio.controller.IPersistentModelLoader.AP">AP</span>, <span class="extype" name="org.apache.predictionio.controller.IPersistentModelLoader.M">M</span>], <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
         </div></div>
         
 
@@ -105,7 +105,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">apply</span><span class="params">(<span name="id">id: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <span class="extype" name="org.apache.predictionio.controller.IPersistentModelLoader.AP">AP</span></span>, <span name="sc">sc: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.apache.spark.SparkContext">SparkContext</span>]</span>)</span><span class="result">: <span class="extype" name="org.apache.predictionio.controller.IPersistentModelLoader.M">M</span></span>
+        <span class="name">apply</span><span class="params">(<span name="id">id: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <span class="extype" name="org.apache.predictionio.controller.IPersistentModelLoader.AP">AP</span></span>, <span name="sc">sc: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.apache.spark.SparkContext">SparkContext</span>]</span>)</span><span class="result">: <span class="extype" name="org.apache.predictionio.controller.IPersistentModelLoader.M">M</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IPersistentModelLoader@apply(id:String,params:AP,sc:Option[org.apache.spark.SparkContext]):M" title="Permalink" target="_top">
@@ -132,7 +132,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IPersistentModelLoader@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -149,7 +149,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IPersistentModelLoader@##():Int" title="Permalink" target="_top">
@@ -166,7 +166,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IPersistentModelLoader@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -200,7 +200,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IPersistentModelLoader@clone():Object" title="Permalink" target="_top">
@@ -223,7 +223,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IPersistentModelLoader@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -240,7 +240,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IPersistentModelLoader@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -257,7 +257,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IPersistentModelLoader@finalize():Unit" title="Permalink" target="_top">
@@ -297,7 +297,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IPersistentModelLoader@hashCode():Int" title="Permalink" target="_top">
@@ -314,7 +314,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IPersistentModelLoader@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -331,7 +331,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IPersistentModelLoader@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -348,7 +348,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IPersistentModelLoader@notify():Unit" title="Permalink" target="_top">
@@ -365,7 +365,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IPersistentModelLoader@notifyAll():Unit" title="Permalink" target="_top">
@@ -416,7 +416,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IPersistentModelLoader@wait():Unit" title="Permalink" target="_top">
@@ -439,7 +439,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IPersistentModelLoader@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -462,7 +462,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IPersistentModelLoader@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -488,9 +488,9 @@
         <div class="parent" name="org.apache.predictionio.controller.PersistentModelLoader">
               <h3>Inherited from <a href="PersistentModelLoader.html" class="extype" name="org.apache.predictionio.controller.PersistentModelLoader">PersistentModelLoader</a>[<span class="extype" name="org.apache.predictionio.controller.IPersistentModelLoader.AP">AP</span>, <span class="extype" name="org.apache.predictionio.controller.IPersistentModelLoader.M">M</span>]</h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/controller/IdentityPreparator$.html b/api/current/org/apache/predictionio/controller/IdentityPreparator$.html
index 4076787..48e9048 100644
--- a/api/current/org/apache/predictionio/controller/IdentityPreparator$.html
+++ b/api/current/org/apache/predictionio/controller/IdentityPreparator$.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>IdentityPreparator - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.IdentityPreparator</title>
-          <meta name="description" content="IdentityPreparator - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.IdentityPreparator" />
-          <meta name="keywords" content="IdentityPreparator PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.IdentityPreparator" />
+          <title>IdentityPreparator - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.IdentityPreparator</title>
+          <meta name="description" content="IdentityPreparator - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.IdentityPreparator" />
+          <meta name="keywords" content="IdentityPreparator PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.IdentityPreparator" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -47,7 +47,7 @@
         <span class="kind">object</span>
       </span>
       <span class="symbol">
-        <span class="name">IdentityPreparator</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <span class="name">IdentityPreparator</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4>
       
@@ -56,7 +56,7 @@
 <a href="EngineFactory.html" class="extype" name="org.apache.predictionio.controller.EngineFactory">EngineFactory</a>.
 </p></div><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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@@ -108,7 +108,7 @@
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-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -125,7 +125,7 @@
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-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -142,7 +142,7 @@
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-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -194,7 +194,7 @@
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-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -217,7 +217,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -234,7 +234,7 @@
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       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -251,7 +251,7 @@
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       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
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@@ -291,7 +291,7 @@
         <span class="kind">def</span>
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       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -308,7 +308,7 @@
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       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
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@@ -325,7 +325,7 @@
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-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IdentityPreparator$@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -342,7 +342,7 @@
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-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.IdentityPreparator$@notify():Unit" title="Permalink" target="_top">
@@ -359,7 +359,7 @@
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-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.IdentityPreparator$@notifyAll():Unit" title="Permalink" target="_top">
@@ -410,7 +410,7 @@
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-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.IdentityPreparator$@wait():Unit" title="Permalink" target="_top">
@@ -433,7 +433,7 @@
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-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -456,7 +456,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -480,13 +480,13 @@
 
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         <div class="parent" name="scala.Serializable">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
             </div><div class="parent" name="java.io.Serializable">
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/controller/IdentityPreparator.html b/api/current/org/apache/predictionio/controller/IdentityPreparator.html
index 5687729..3c730e8 100644
--- a/api/current/org/apache/predictionio/controller/IdentityPreparator.html
+++ b/api/current/org/apache/predictionio/controller/IdentityPreparator.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>IdentityPreparator - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.IdentityPreparator</title>
-          <meta name="description" content="IdentityPreparator - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.IdentityPreparator" />
-          <meta name="keywords" content="IdentityPreparator PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.IdentityPreparator" />
+          <title>IdentityPreparator - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.IdentityPreparator</title>
+          <meta name="description" content="IdentityPreparator - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.IdentityPreparator" />
+          <meta name="keywords" content="IdentityPreparator PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.IdentityPreparator" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -56,7 +56,7 @@
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@@ -131,7 +131,7 @@
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+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -148,7 +148,7 @@
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-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -165,7 +165,7 @@
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@@ -199,7 +199,7 @@
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+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -222,7 +222,7 @@
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+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -239,7 +239,7 @@
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index 8560069..734a04a 100644
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-          <meta name="keywords" content="LAlgorithm PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.LAlgorithm" />
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@@ -169,7 +169,7 @@
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@@ -55,7 +55,7 @@
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@@ -454,7 +454,7 @@
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@@ -478,13 +478,13 @@
 
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@@ -1,9 +1,9 @@
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@@ -55,7 +55,7 @@
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index 4c6d39f..65677e9 100644
--- a/api/current/org/apache/predictionio/controller/LFirstServing.html
+++ b/api/current/org/apache/predictionio/controller/LFirstServing.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>LFirstServing - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.LFirstServing</title>
-          <meta name="description" content="LFirstServing - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.LFirstServing" />
-          <meta name="keywords" content="LFirstServing PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.LFirstServing" />
+          <title>LFirstServing - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.LFirstServing</title>
+          <meta name="description" content="LFirstServing - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.LFirstServing" />
+          <meta name="keywords" content="LFirstServing PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.LFirstServing" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -55,8 +55,11 @@
 prediction result directly without any modification.
 </p></div><div class="toggleContainer block">
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-          <div class="superTypes hiddenContent"><a href="LServing.html" class="extype" name="org.apache.predictionio.controller.LServing">LServing</a>[<span class="extype" name="org.apache.predictionio.controller.LFirstServing.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.LFirstServing.P">P</span>], <a href="../core/BaseServing.html" class="extype" name="org.apache.predictionio.core.BaseServing">BaseServing</a>[<span class="extype" name="org.apache.predictionio.controller.LFirstServing.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.LFirstServing.P">P</span>], <a href="../core/AbstractDoer.html" class="extype" name="org.apache.predictionio.core.AbstractDoer">AbstractDoer</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
-        </div></div>
+          <div class="superTypes hiddenContent"><a href="LServing.html" class="extype" name="org.apache.predictionio.controller.LServing">LServing</a>[<span class="extype" name="org.apache.predictionio.controller.LFirstServing.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.LFirstServing.P">P</span>], <a href="../core/BaseServing.html" class="extype" name="org.apache.predictionio.core.BaseServing">BaseServing</a>[<span class="extype" name="org.apache.predictionio.controller.LFirstServing.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.LFirstServing.P">P</span>], <a href="../core/AbstractDoer.html" class="extype" name="org.apache.predictionio.core.AbstractDoer">AbstractDoer</a>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
+        </div><div class="toggleContainer block">
+            <span class="toggle">Known Subclasses</span>
+            <div class="subClasses hiddenContent"><a href="../e2/engine/PythonServing.html" class="extype" name="org.apache.predictionio.e2.engine.PythonServing">PythonServing</a></div>
+          </div></div>
         
 
       <div id="mbrsel">
@@ -127,7 +130,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LFirstServing@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -144,7 +147,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LFirstServing@##():Int" title="Permalink" target="_top">
@@ -161,7 +164,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LFirstServing@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -195,7 +198,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LFirstServing@clone():Object" title="Permalink" target="_top">
@@ -218,7 +221,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LFirstServing@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -235,7 +238,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LFirstServing@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -252,7 +255,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LFirstServing@finalize():Unit" title="Permalink" target="_top">
@@ -292,7 +295,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LFirstServing@hashCode():Int" title="Permalink" target="_top">
@@ -309,7 +312,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LFirstServing@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -326,7 +329,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LFirstServing@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -343,7 +346,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LFirstServing@notify():Unit" title="Permalink" target="_top">
@@ -360,7 +363,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LFirstServing@notifyAll():Unit" title="Permalink" target="_top">
@@ -496,7 +499,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LFirstServing@wait():Unit" title="Permalink" target="_top">
@@ -519,7 +522,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LFirstServing@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -542,7 +545,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LFirstServing@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -572,13 +575,13 @@
             </div><div class="parent" name="org.apache.predictionio.core.AbstractDoer">
               <h3>Inherited from <a href="../core/AbstractDoer.html" class="extype" name="org.apache.predictionio.core.AbstractDoer">AbstractDoer</a></h3>
             </div><div class="parent" name="scala.Serializable">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
             </div><div class="parent" name="java.io.Serializable">
               <h3>Inherited from <span class="extype" name="java.io.Serializable">Serializable</span></h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/controller/LIdentityPreparator$.html b/api/current/org/apache/predictionio/controller/LIdentityPreparator$.html
index ddf430b..b95ddb5 100644
--- a/api/current/org/apache/predictionio/controller/LIdentityPreparator$.html
+++ b/api/current/org/apache/predictionio/controller/LIdentityPreparator$.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>LIdentityPreparator - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.LIdentityPreparator</title>
-          <meta name="description" content="LIdentityPreparator - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.LIdentityPreparator" />
-          <meta name="keywords" content="LIdentityPreparator PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.LIdentityPreparator" />
+          <title>LIdentityPreparator - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.LIdentityPreparator</title>
+          <meta name="description" content="LIdentityPreparator - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.LIdentityPreparator" />
+          <meta name="keywords" content="LIdentityPreparator PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.LIdentityPreparator" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -47,14 +47,14 @@
         <span class="kind">object</span>
       </span>
       <span class="symbol">
-        <span class="name">LIdentityPreparator</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <span class="name">LIdentityPreparator</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4>
       
           <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>DEPRECATED. Use <a href="IdentityPreparator.html" class="extype" name="org.apache.predictionio.controller.IdentityPreparator">IdentityPreparator</a> instead.
 </p></div><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
         </div></div>
         
 
@@ -106,7 +106,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator$@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -123,7 +123,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator$@##():Int" title="Permalink" target="_top">
@@ -140,7 +140,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator$@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -174,7 +174,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator$@clone():Object" title="Permalink" target="_top">
@@ -197,7 +197,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator$@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -214,7 +214,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator$@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -231,7 +231,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator$@finalize():Unit" title="Permalink" target="_top">
@@ -271,7 +271,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator$@hashCode():Int" title="Permalink" target="_top">
@@ -288,7 +288,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator$@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -305,7 +305,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator$@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -322,7 +322,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator$@notify():Unit" title="Permalink" target="_top">
@@ -339,7 +339,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator$@notifyAll():Unit" title="Permalink" target="_top">
@@ -390,7 +390,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator$@wait():Unit" title="Permalink" target="_top">
@@ -413,7 +413,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator$@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -436,7 +436,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator$@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -484,13 +484,13 @@
 
         <div id="inheritedMembers">
         <div class="parent" name="scala.Serializable">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
             </div><div class="parent" name="java.io.Serializable">
               <h3>Inherited from <span class="extype" name="java.io.Serializable">Serializable</span></h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/controller/LIdentityPreparator.html b/api/current/org/apache/predictionio/controller/LIdentityPreparator.html
index 2574297..852836d 100644
--- a/api/current/org/apache/predictionio/controller/LIdentityPreparator.html
+++ b/api/current/org/apache/predictionio/controller/LIdentityPreparator.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>LIdentityPreparator - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.LIdentityPreparator</title>
-          <meta name="description" content="LIdentityPreparator - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.LIdentityPreparator" />
-          <meta name="keywords" content="LIdentityPreparator PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.LIdentityPreparator" />
+          <title>LIdentityPreparator - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.LIdentityPreparator</title>
+          <meta name="description" content="LIdentityPreparator - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.LIdentityPreparator" />
+          <meta name="keywords" content="LIdentityPreparator PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.LIdentityPreparator" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -54,7 +54,7 @@
           <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>DEPRECATED. Use <a href="IdentityPreparator.html" class="extype" name="org.apache.predictionio.controller.IdentityPreparator">IdentityPreparator</a> instead.
 </p></div><dl class="paramcmts block"><dt class="tparam">TD</dt><dd class="cmt"><p>Training data class.</p></dd></dl><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="IdentityPreparator.html" class="extype" name="org.apache.predictionio.controller.IdentityPreparator">IdentityPreparator</a>[<span class="extype" name="org.apache.predictionio.controller.LIdentityPreparator.TD">TD</span>], <a href="../core/BasePreparator.html" class="extype" name="org.apache.predictionio.core.BasePreparator">BasePreparator</a>[<span class="extype" name="org.apache.predictionio.controller.LIdentityPreparator.TD">TD</span>, <span class="extype" name="org.apache.predictionio.controller.LIdentityPreparator.TD">TD</span>], <a href="../core/AbstractDoer.html" class="extype" name="org.apache.predictionio.core.AbstractDoer">AbstractDoer</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="IdentityPreparator.html" class="extype" name="org.apache.predictionio.controller.IdentityPreparator">IdentityPreparator</a>[<span class="extype" name="org.apache.predictionio.controller.LIdentityPreparator.TD">TD</span>], <a href="../core/BasePreparator.html" class="extype" name="org.apache.predictionio.core.BasePreparator">BasePreparator</a>[<span class="extype" name="org.apache.predictionio.controller.LIdentityPreparator.TD">TD</span>, <span class="extype" name="org.apache.predictionio.controller.LIdentityPreparator.TD">TD</span>], <a href="../core/AbstractDoer.html" class="extype" name="org.apache.predictionio.core.AbstractDoer">AbstractDoer</a>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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@@ -126,7 +126,7 @@
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       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -143,7 +143,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator@##():Int" title="Permalink" target="_top">
@@ -160,7 +160,7 @@
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       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -194,7 +194,7 @@
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-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator@clone():Object" title="Permalink" target="_top">
@@ -217,7 +217,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -234,7 +234,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -251,7 +251,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LIdentityPreparator@finalize():Unit" title="Permalink" target="_top">
@@ -291,7 +291,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -499,7 +499,7 @@
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@@ -527,13 +527,13 @@
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
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+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/controller/LServing.html b/api/current/org/apache/predictionio/controller/LServing.html
index 7f3300a..7728c55 100644
--- a/api/current/org/apache/predictionio/controller/LServing.html
+++ b/api/current/org/apache/predictionio/controller/LServing.html
@@ -1,9 +1,9 @@
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-          <meta name="keywords" content="LServing PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.LServing" />
+          <title>LServing - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.LServing</title>
+          <meta name="description" content="LServing - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.LServing" />
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@@ -52,10 +52,10 @@
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@@ -168,7 +168,7 @@
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+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -185,7 +185,7 @@
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@@ -219,7 +219,7 @@
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@@ -242,7 +242,7 @@
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@@ -259,7 +259,7 @@
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+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -276,7 +276,7 @@
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+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -316,7 +316,7 @@
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@@ -350,7 +350,7 @@
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@@ -367,7 +367,7 @@
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@@ -384,7 +384,7 @@
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@@ -503,7 +503,7 @@
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@@ -526,7 +526,7 @@
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@@ -549,7 +549,7 @@
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@@ -577,13 +577,13 @@
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+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
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index fc45e64..488826b 100644
--- a/api/current/org/apache/predictionio/controller/LocalFileSystemPersistentModel.html
+++ b/api/current/org/apache/predictionio/controller/LocalFileSystemPersistentModel.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>LocalFileSystemPersistentModel - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.LocalFileSystemPersistentModel</title>
-          <meta name="description" content="LocalFileSystemPersistentModel - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.LocalFileSystemPersistentModel" />
-          <meta name="keywords" content="LocalFileSystemPersistentModel PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.LocalFileSystemPersistentModel" />
+          <title>LocalFileSystemPersistentModel - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.LocalFileSystemPersistentModel</title>
+          <meta name="description" content="LocalFileSystemPersistentModel - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.LocalFileSystemPersistentModel" />
+          <meta name="keywords" content="LocalFileSystemPersistentModel PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.LocalFileSystemPersistentModel" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -59,7 +59,7 @@
   ...
 }</pre></div><dl class="paramcmts block"><dt class="tparam">AP</dt><dd class="cmt"><p>Algorithm parameters class.</p></dd></dl><dl class="attributes block"> <dt>See also</dt><dd><span class="cmt"><p><a href="LocalFileSystemPersistentModelLoader.html" class="extype" name="org.apache.predictionio.controller.LocalFileSystemPersistentModelLoader">LocalFileSystemPersistentModelLoader</a></p></span></dd></dl><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="PersistentModel.html" class="extype" name="org.apache.predictionio.controller.PersistentModel">PersistentModel</a>[<span class="extype" name="org.apache.predictionio.controller.LocalFileSystemPersistentModel.AP">AP</span>], <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="PersistentModel.html" class="extype" name="org.apache.predictionio.controller.PersistentModel">PersistentModel</a>[<span class="extype" name="org.apache.predictionio.controller.LocalFileSystemPersistentModel.AP">AP</span>], <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
         </div><div class="toggleContainer block">
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             <div class="subClasses hiddenContent"><a href="IFSPersistentModel.html" class="extype" name="org.apache.predictionio.controller.IFSPersistentModel">IFSPersistentModel</a></div>
@@ -114,7 +114,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.LocalFileSystemPersistentModel@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -131,7 +131,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LocalFileSystemPersistentModel@##():Int" title="Permalink" target="_top">
@@ -148,7 +148,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LocalFileSystemPersistentModel@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -182,7 +182,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LocalFileSystemPersistentModel@clone():Object" title="Permalink" target="_top">
@@ -205,7 +205,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LocalFileSystemPersistentModel@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -222,7 +222,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LocalFileSystemPersistentModel@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -239,7 +239,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LocalFileSystemPersistentModel@finalize():Unit" title="Permalink" target="_top">
@@ -279,7 +279,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LocalFileSystemPersistentModel@hashCode():Int" title="Permalink" target="_top">
@@ -296,7 +296,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LocalFileSystemPersistentModel@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -313,7 +313,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LocalFileSystemPersistentModel@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -330,7 +330,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LocalFileSystemPersistentModel@notify():Unit" title="Permalink" target="_top">
@@ -347,7 +347,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LocalFileSystemPersistentModel@notifyAll():Unit" title="Permalink" target="_top">
@@ -364,7 +364,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">save</span><span class="params">(<span name="id">id: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <span class="extype" name="org.apache.predictionio.controller.LocalFileSystemPersistentModel.AP">AP</span></span>, <span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">save</span><span class="params">(<span name="id">id: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <span class="extype" name="org.apache.predictionio.controller.LocalFileSystemPersistentModel.AP">AP</span></span>, <span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LocalFileSystemPersistentModel@save(id:String,params:AP,sc:org.apache.spark.SparkContext):Boolean" title="Permalink" target="_top">
@@ -421,7 +421,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LocalFileSystemPersistentModel@wait():Unit" title="Permalink" target="_top">
@@ -444,7 +444,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LocalFileSystemPersistentModel@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -467,7 +467,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LocalFileSystemPersistentModel@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -493,9 +493,9 @@
         <div class="parent" name="org.apache.predictionio.controller.PersistentModel">
               <h3>Inherited from <a href="PersistentModel.html" class="extype" name="org.apache.predictionio.controller.PersistentModel">PersistentModel</a>[<span class="extype" name="org.apache.predictionio.controller.LocalFileSystemPersistentModel.AP">AP</span>]</h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/controller/LocalFileSystemPersistentModelLoader.html b/api/current/org/apache/predictionio/controller/LocalFileSystemPersistentModelLoader.html
index e216bd4..dd8430f 100644
--- a/api/current/org/apache/predictionio/controller/LocalFileSystemPersistentModelLoader.html
+++ b/api/current/org/apache/predictionio/controller/LocalFileSystemPersistentModelLoader.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>LocalFileSystemPersistentModelLoader - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.LocalFileSystemPersistentModelLoader</title>
-          <meta name="description" content="LocalFileSystemPersistentModelLoader - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.LocalFileSystemPersistentModelLoader" />
-          <meta name="keywords" content="LocalFileSystemPersistentModelLoader PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.LocalFileSystemPersistentModelLoader" />
+          <title>LocalFileSystemPersistentModelLoader - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.LocalFileSystemPersistentModelLoader</title>
+          <meta name="description" content="LocalFileSystemPersistentModelLoader - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.LocalFileSystemPersistentModelLoader" />
+          <meta name="keywords" content="LocalFileSystemPersistentModelLoader PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.LocalFileSystemPersistentModelLoader" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -53,7 +53,7 @@
 loading a persisted model from local filesystem during serving deployment.</p><p>The underlying implementation is <a href="Utils$.html#load(id:String):Any" class="extmbr" name="org.apache.predictionio.controller.Utils#load">Utils.load</a>.
 </p></div><dl class="paramcmts block"><dt class="tparam">AP</dt><dd class="cmt"><p>Algorithm parameters class.</p></dd><dt class="tparam">M</dt><dd class="cmt"><p>Model class.</p></dd></dl><dl class="attributes block"> <dt>See also</dt><dd><span class="cmt"><p><a href="LocalFileSystemPersistentModel.html" class="extype" name="org.apache.predictionio.controller.LocalFileSystemPersistentModel">LocalFileSystemPersistentModel</a></p></span></dd></dl><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="PersistentModelLoader.html" class="extype" name="org.apache.predictionio.controller.PersistentModelLoader">PersistentModelLoader</a>[<span class="extype" name="org.apache.predictionio.controller.LocalFileSystemPersistentModelLoader.AP">AP</span>, <span class="extype" name="org.apache.predictionio.controller.LocalFileSystemPersistentModelLoader.M">M</span>], <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="PersistentModelLoader.html" class="extype" name="org.apache.predictionio.controller.PersistentModelLoader">PersistentModelLoader</a>[<span class="extype" name="org.apache.predictionio.controller.LocalFileSystemPersistentModelLoader.AP">AP</span>, <span class="extype" name="org.apache.predictionio.controller.LocalFileSystemPersistentModelLoader.M">M</span>], <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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             <span class="toggle">Known Subclasses</span>
             <div class="subClasses hiddenContent"><a href="IFSPersistentModelLoader.html" class="extype" name="org.apache.predictionio.controller.IFSPersistentModelLoader">IFSPersistentModelLoader</a></div>
@@ -108,7 +108,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LocalFileSystemPersistentModelLoader@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -125,7 +125,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.LocalFileSystemPersistentModelLoader@##():Int" title="Permalink" target="_top">
@@ -142,7 +142,7 @@
         <span class="kind">def</span>
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@@ -198,7 +198,7 @@
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@@ -255,7 +255,7 @@
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@@ -1,9 +1,9 @@
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-          <meta name="keywords" content="Metric PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.Metric" />
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           <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>Base class of a <a href="" class="extype" name="org.apache.predictionio.controller.Metric">Metric</a>.
 </p></div><dl class="paramcmts block"><dt class="tparam">EI</dt><dd class="cmt"><p>Evaluation information</p></dd><dt class="tparam">Q</dt><dd class="cmt"><p>Query</p></dd><dt class="tparam">P</dt><dd class="cmt"><p>Predicted result</p></dd><dt class="tparam">A</dt><dd class="cmt"><p>Actual result</p></dd><dt class="tparam">R</dt><dd class="cmt"><p>Metric result</p></dd></dl><div class="toggleContainer block">
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/controller/MetricEvaluatorResult.html b/api/current/org/apache/predictionio/controller/MetricEvaluatorResult.html
index c21ef15..fe3465a 100644
--- a/api/current/org/apache/predictionio/controller/MetricEvaluatorResult.html
+++ b/api/current/org/apache/predictionio/controller/MetricEvaluatorResult.html
@@ -1,9 +1,9 @@
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-          <meta name="keywords" content="MetricEvaluatorResult PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.MetricEvaluatorResult" />
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+          <meta name="description" content="MetricEvaluatorResult - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.MetricEvaluatorResult" />
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@@ -45,14 +45,14 @@
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 </p></div><dl class="paramcmts block"><dt class="tparam">R</dt><dd class="cmt"><p>Type of the primary metric score</p></dd><dt class="param">bestScore</dt><dd class="cmt"><p>The best score among all iterations</p></dd><dt class="param">bestEngineParams</dt><dd class="cmt"><p>The set of engine parameters that yielded the best score</p></dd><dt class="param">bestIdx</dt><dd class="cmt"><p>The index of iteration that yielded the best score</p></dd><dt class="param">metricHeader</dt><dd class="cmt"><p>Brief description of the primary metric score</p></dd><dt class="param">otherMetricHeaders</dt><dd class="cmt"><p>Brief descriptions of other metric scores</p></dd><dt class="param">engineParamsScores</dt><dd class="cmt"><p>All sets of engine parameters and corresponding metric scores</p></dd><dt class="param">outputPath</dt><dd class="cmt"><p>An optional output path where scores are saved</p></dd></dl><div class="toggleContainer block">
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@@ -124,7 +124,7 @@
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+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -141,7 +141,7 @@
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+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.MetricEvaluatorResult@##():Int" title="Permalink" target="_top">
@@ -158,7 +158,7 @@
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+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -209,7 +209,7 @@
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+        <span class="name">bestIdx</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -243,7 +243,7 @@
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+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -283,7 +283,7 @@
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+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -300,7 +300,7 @@
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@@ -340,7 +340,7 @@
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+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -374,7 +374,7 @@
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+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -391,7 +391,7 @@
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+        <span class="name">noSave</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -463,7 +463,7 @@
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@@ -565,7 +565,7 @@
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+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.MetricEvaluatorResult@wait():Unit" title="Permalink" target="_top">
@@ -588,7 +588,7 @@
         <span class="kind">def</span>
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index f8c05da..9c1381c 100644
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+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/controller/OptionAverageMetric.html b/api/current/org/apache/predictionio/controller/OptionAverageMetric.html
index 0b24b66..f45590d 100644
--- a/api/current/org/apache/predictionio/controller/OptionAverageMetric.html
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@@ -1,9 +1,9 @@
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-          <meta name="keywords" content="OptionAverageMetric PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.OptionAverageMetric" />
+          <title>OptionAverageMetric - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.OptionAverageMetric</title>
+          <meta name="description" content="OptionAverageMetric - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.OptionAverageMetric" />
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@@ -53,7 +53,7 @@
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@@ -123,7 +123,7 @@
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@@ -147,7 +147,7 @@
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+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -164,7 +164,7 @@
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@@ -215,7 +215,7 @@
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@@ -249,7 +249,7 @@
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@@ -681,7 +684,7 @@
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@@ -711,13 +714,13 @@
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
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+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/controller/PAlgorithm.html b/api/current/org/apache/predictionio/controller/PAlgorithm.html
index c2f5b84..bb5e1e7 100644
--- a/api/current/org/apache/predictionio/controller/PAlgorithm.html
+++ b/api/current/org/apache/predictionio/controller/PAlgorithm.html
@@ -1,9 +1,9 @@
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 <html>
         <head>
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-          <meta name="description" content="PAlgorithm - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.PAlgorithm" />
-          <meta name="keywords" content="PAlgorithm PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.PAlgorithm" />
+          <title>PAlgorithm - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.PAlgorithm</title>
+          <meta name="description" content="PAlgorithm - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.PAlgorithm" />
+          <meta name="keywords" content="PAlgorithm PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.PAlgorithm" />
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@@ -58,7 +58,7 @@
 is used.
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@@ -171,7 +171,7 @@
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@@ -188,7 +188,7 @@
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+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -205,7 +205,7 @@
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@@ -261,7 +261,7 @@
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@@ -282,7 +282,7 @@
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@@ -305,7 +305,7 @@
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@@ -322,7 +322,7 @@
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@@ -339,7 +339,7 @@
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@@ -379,7 +379,7 @@
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@@ -417,7 +417,7 @@
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@@ -469,7 +469,7 @@
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@@ -486,7 +486,7 @@
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-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.PDataSource@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -592,13 +595,13 @@
             </div><div class="parent" name="org.apache.predictionio.core.AbstractDoer">
               <h3>Inherited from <a href="../core/AbstractDoer.html" class="extype" name="org.apache.predictionio.core.AbstractDoer">AbstractDoer</a></h3>
             </div><div class="parent" name="scala.Serializable">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
             </div><div class="parent" name="java.io.Serializable">
               <h3>Inherited from <span class="extype" name="java.io.Serializable">Serializable</span></h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/controller/PIdentityPreparator$.html b/api/current/org/apache/predictionio/controller/PIdentityPreparator$.html
index 22471bb..bb55731 100644
--- a/api/current/org/apache/predictionio/controller/PIdentityPreparator$.html
+++ b/api/current/org/apache/predictionio/controller/PIdentityPreparator$.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>PIdentityPreparator - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.PIdentityPreparator</title>
-          <meta name="description" content="PIdentityPreparator - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.PIdentityPreparator" />
-          <meta name="keywords" content="PIdentityPreparator PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.PIdentityPreparator" />
+          <title>PIdentityPreparator - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.PIdentityPreparator</title>
+          <meta name="description" content="PIdentityPreparator - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.PIdentityPreparator" />
+          <meta name="keywords" content="PIdentityPreparator PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.PIdentityPreparator" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -47,14 +47,14 @@
         <span class="kind">object</span>
       </span>
       <span class="symbol">
-        <span class="name">PIdentityPreparator</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <span class="name">PIdentityPreparator</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4>
       
           <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>DEPRECATED. Use <a href="IdentityPreparator.html" class="extype" name="org.apache.predictionio.controller.IdentityPreparator">IdentityPreparator</a> instead.
 </p></div><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
         </div></div>
         
 
@@ -106,7 +106,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.PIdentityPreparator$@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -123,7 +123,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.PIdentityPreparator$@##():Int" title="Permalink" target="_top">
@@ -140,7 +140,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.PIdentityPreparator$@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -174,7 +174,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.PIdentityPreparator$@clone():Object" title="Permalink" target="_top">
@@ -197,7 +197,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.PIdentityPreparator$@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -214,7 +214,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.PIdentityPreparator$@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -231,7 +231,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.PIdentityPreparator$@finalize():Unit" title="Permalink" target="_top">
@@ -271,7 +271,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.PIdentityPreparator$@hashCode():Int" title="Permalink" target="_top">
@@ -288,7 +288,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.PIdentityPreparator$@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -305,7 +305,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.PIdentityPreparator$@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -322,7 +322,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.PIdentityPreparator$@notify():Unit" title="Permalink" target="_top">
@@ -339,7 +339,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.PIdentityPreparator$@notifyAll():Unit" title="Permalink" target="_top">
@@ -390,7 +390,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.PIdentityPreparator$@wait():Unit" title="Permalink" target="_top">
@@ -413,7 +413,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.PIdentityPreparator$@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -436,7 +436,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.PIdentityPreparator$@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -484,13 +484,13 @@
 
         <div id="inheritedMembers">
         <div class="parent" name="scala.Serializable">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
             </div><div class="parent" name="java.io.Serializable">
               <h3>Inherited from <span class="extype" name="java.io.Serializable">Serializable</span></h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/controller/PIdentityPreparator.html b/api/current/org/apache/predictionio/controller/PIdentityPreparator.html
index 3b96d57..ac88f29 100644
--- a/api/current/org/apache/predictionio/controller/PIdentityPreparator.html
+++ b/api/current/org/apache/predictionio/controller/PIdentityPreparator.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>PIdentityPreparator - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.PIdentityPreparator</title>
-          <meta name="description" content="PIdentityPreparator - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.PIdentityPreparator" />
-          <meta name="keywords" content="PIdentityPreparator PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.PIdentityPreparator" />
+          <title>PIdentityPreparator - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.PIdentityPreparator</title>
+          <meta name="description" content="PIdentityPreparator - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.PIdentityPreparator" />
+          <meta name="keywords" content="PIdentityPreparator PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.PIdentityPreparator" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -54,7 +54,7 @@
           <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>DEPRECATED. Use <a href="IdentityPreparator.html" class="extype" name="org.apache.predictionio.controller.IdentityPreparator">IdentityPreparator</a> instead.
 </p></div><dl class="paramcmts block"><dt class="tparam">TD</dt><dd class="cmt"><p>Training data class.</p></dd></dl><div class="toggleContainer block">
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@@ -453,7 +456,7 @@
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@@ -527,13 +530,13 @@
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diff --git a/api/current/org/apache/predictionio/controller/Params.html b/api/current/org/apache/predictionio/controller/Params.html
index 6c004b5..e44967c 100644
--- a/api/current/org/apache/predictionio/controller/Params.html
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@@ -1,9 +1,9 @@
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 <html>
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-          <meta name="keywords" content="Params PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.Params" />
+          <title>Params - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.Params</title>
+          <meta name="description" content="Params - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.Params" />
+          <meta name="keywords" content="Params PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.Params" />
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@@ -45,7 +45,7 @@
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+        <span class="name">Params</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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@@ -53,10 +53,10 @@
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@@ -108,7 +108,7 @@
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@@ -324,7 +324,7 @@
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+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -341,7 +341,7 @@
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+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -392,7 +392,7 @@
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-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -415,7 +415,7 @@
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+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -438,7 +438,7 @@
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+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -462,13 +462,13 @@
 
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+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/controller/PersistentModel.html b/api/current/org/apache/predictionio/controller/PersistentModel.html
index 9b3233b..a2d5a83 100644
--- a/api/current/org/apache/predictionio/controller/PersistentModel.html
+++ b/api/current/org/apache/predictionio/controller/PersistentModel.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>PersistentModel - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.PersistentModel</title>
-          <meta name="description" content="PersistentModel - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.PersistentModel" />
-          <meta name="keywords" content="PersistentModel PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.PersistentModel" />
+          <title>PersistentModel - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.PersistentModel</title>
+          <meta name="description" content="PersistentModel - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.PersistentModel" />
+          <meta name="keywords" content="PersistentModel PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.PersistentModel" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
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@@ -45,7 +45,7 @@
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       </span>
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-        <span class="name">PersistentModel</span><span class="tparams">[<span name="AP">AP &lt;: <a href="Params.html" class="extype" name="org.apache.predictionio.controller.Params">Params</a></span>]</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">PersistentModel</span><span class="tparams">[<span name="AP">AP &lt;: <a href="Params.html" class="extype" name="org.apache.predictionio.controller.Params">Params</a></span>]</span><span class="result"> extends <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -77,7 +77,7 @@
   ...
 }</pre></div><dl class="paramcmts block"><dt class="tparam">AP</dt><dd class="cmt"><p>Algorithm parameters class.</p></dd></dl><dl class="attributes block"> <dt>See also</dt><dd><span class="cmt"><p><a href="PersistentModelLoader.html" class="extype" name="org.apache.predictionio.controller.PersistentModelLoader">PersistentModelLoader</a></p></span></dd></dl><div class="toggleContainer block">
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@@ -130,7 +130,7 @@
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@@ -158,7 +158,7 @@
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+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -175,7 +175,7 @@
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+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -192,7 +192,7 @@
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@@ -226,7 +226,7 @@
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+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -249,7 +249,7 @@
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@@ -266,7 +266,7 @@
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-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -283,7 +283,7 @@
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-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -323,7 +323,7 @@
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+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -340,7 +340,7 @@
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@@ -357,7 +357,7 @@
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@@ -374,7 +374,7 @@
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@@ -391,7 +391,7 @@
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@@ -442,7 +442,7 @@
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@@ -465,7 +465,7 @@
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@@ -488,7 +488,7 @@
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diff --git a/api/current/org/apache/predictionio/controller/PersistentModelLoader.html b/api/current/org/apache/predictionio/controller/PersistentModelLoader.html
index 11a3971..c367b93 100644
--- a/api/current/org/apache/predictionio/controller/PersistentModelLoader.html
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@@ -1,9 +1,9 @@
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-          <meta name="keywords" content="PersistentModelLoader PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.PersistentModelLoader" />
+          <title>PersistentModelLoader - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.PersistentModelLoader</title>
+          <meta name="description" content="PersistentModelLoader - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.PersistentModelLoader" />
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+        <span class="name">PersistentModelLoader</span><span class="tparams">[<span name="AP">AP &lt;: <a href="Params.html" class="extype" name="org.apache.predictionio.controller.Params">Params</a></span>, <span name="M">M</span>]</span><span class="result"> extends <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -53,7 +53,7 @@
 loading a persisted model during serving deployment.
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@@ -106,7 +106,7 @@
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+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -258,7 +258,7 @@
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@@ -332,7 +332,7 @@
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@@ -417,7 +417,7 @@
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+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -487,9 +487,9 @@
 
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index 02873d3..80148eb 100644
--- a/api/current/org/apache/predictionio/controller/QPAMetric.html
+++ b/api/current/org/apache/predictionio/controller/QPAMetric.html
@@ -1,9 +1,9 @@
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 <html>
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-          <meta name="keywords" content="QPAMetric PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.QPAMetric" />
+          <title>QPAMetric - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.QPAMetric</title>
+          <meta name="description" content="QPAMetric - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.QPAMetric" />
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       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -45,7 +45,7 @@
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@@ -53,7 +53,7 @@
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@@ -483,9 +483,9 @@
 
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-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngine@notifyAll():Unit" title="Permalink" target="_top">
@@ -582,7 +582,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">train</span><span class="params">(<span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>, <span name="engineParams">engineParams: <a href="EngineParams.html" class="extype" name="org.apache.predictionio.controller.EngineParams">EngineParams</a></span>, <span name="engineInstanceId">engineInstanceId: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <a href="../workflow/WorkflowParams.html" class="extype" name="org.apache.predictionio.workflow.WorkflowParams">WorkflowParams</a></span>)</span><span class="result">: <span class="extype" name="scala.Seq">Seq</span>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a>]</span>
+        <span class="name">train</span><span class="params">(<span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>, <span name="engineParams">engineParams: <a href="EngineParams.html" class="extype" name="org.apache.predictionio.controller.EngineParams">EngineParams</a></span>, <span name="engineInstanceId">engineInstanceId: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <a href="../workflow/WorkflowParams.html" class="extype" name="org.apache.predictionio.workflow.WorkflowParams">WorkflowParams</a></span>)</span><span class="result">: <span class="extype" name="scala.Seq">Seq</span>[<span class="extype" name="scala.Any">Any</span>]</span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngine@train(sc:org.apache.spark.SparkContext,engineParams:org.apache.predictionio.controller.EngineParams,engineInstanceId:String,params:org.apache.predictionio.workflow.WorkflowParams):Seq[Any]" title="Permalink" target="_top">
@@ -600,7 +600,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngine@wait():Unit" title="Permalink" target="_top">
@@ -623,7 +623,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngine@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -646,7 +646,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngine@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -674,13 +674,13 @@
             </div><div class="parent" name="org.apache.predictionio.core.BaseEngine">
               <h3>Inherited from <a href="../core/BaseEngine.html" class="extype" name="org.apache.predictionio.core.BaseEngine">BaseEngine</a>[<span class="extype" name="org.apache.predictionio.controller.SimpleEngine.EI">EI</span>, <span class="extype" name="org.apache.predictionio.controller.SimpleEngine.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.SimpleEngine.P">P</span>, <span class="extype" name="org.apache.predictionio.controller.SimpleEngine.A">A</span>]</h3>
             </div><div class="parent" name="scala.Serializable">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
             </div><div class="parent" name="java.io.Serializable">
               <h3>Inherited from <span class="extype" name="java.io.Serializable">Serializable</span></h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/controller/SimpleEngineParams.html b/api/current/org/apache/predictionio/controller/SimpleEngineParams.html
index 39f6d76..11aad1f 100644
--- a/api/current/org/apache/predictionio/controller/SimpleEngineParams.html
+++ b/api/current/org/apache/predictionio/controller/SimpleEngineParams.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>SimpleEngineParams - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.SimpleEngineParams</title>
-          <meta name="description" content="SimpleEngineParams - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.SimpleEngineParams" />
-          <meta name="keywords" content="SimpleEngineParams PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.SimpleEngineParams" />
+          <title>SimpleEngineParams - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.SimpleEngineParams</title>
+          <meta name="description" content="SimpleEngineParams - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.SimpleEngineParams" />
+          <meta name="keywords" content="SimpleEngineParams PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.SimpleEngineParams" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -52,7 +52,7 @@
           <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>This shorthand class serves the <code>SimpleEngine</code> class.
 </p></div><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="EngineParams.html" class="extype" name="org.apache.predictionio.controller.EngineParams">EngineParams</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="EngineParams.html" class="extype" name="org.apache.predictionio.controller.EngineParams">EngineParams</a>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
         </div></div>
         
 
@@ -124,7 +124,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngineParams@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -141,7 +141,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngineParams@##():Int" title="Permalink" target="_top">
@@ -158,7 +158,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngineParams@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -209,7 +209,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngineParams@clone():Object" title="Permalink" target="_top">
@@ -266,7 +266,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngineParams@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -283,7 +283,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngineParams@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -300,7 +300,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngineParams@finalize():Unit" title="Permalink" target="_top">
@@ -340,7 +340,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngineParams@hashCode():Int" title="Permalink" target="_top">
@@ -357,7 +357,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngineParams@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -374,7 +374,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngineParams@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -391,7 +391,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngineParams@notify():Unit" title="Permalink" target="_top">
@@ -408,7 +408,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngineParams@notifyAll():Unit" title="Permalink" target="_top">
@@ -493,7 +493,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngineParams@wait():Unit" title="Permalink" target="_top">
@@ -516,7 +516,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngineParams@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -539,7 +539,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.SimpleEngineParams@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -565,13 +565,13 @@
         <div class="parent" name="org.apache.predictionio.controller.EngineParams">
               <h3>Inherited from <a href="EngineParams.html" class="extype" name="org.apache.predictionio.controller.EngineParams">EngineParams</a></h3>
             </div><div class="parent" name="scala.Serializable">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
             </div><div class="parent" name="java.io.Serializable">
               <h3>Inherited from <span class="extype" name="java.io.Serializable">Serializable</span></h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/controller/StdevMetric.html b/api/current/org/apache/predictionio/controller/StdevMetric.html
index 1c53208..5b6aae2 100644
--- a/api/current/org/apache/predictionio/controller/StdevMetric.html
+++ b/api/current/org/apache/predictionio/controller/StdevMetric.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>StdevMetric - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.StdevMetric</title>
-          <meta name="description" content="StdevMetric - PredictionIO Scala API 0.13.0 - org.apache.predictionio.controller.StdevMetric" />
-          <meta name="keywords" content="StdevMetric PredictionIO Scala API 0.13.0 org.apache.predictionio.controller.StdevMetric" />
+          <title>StdevMetric - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.StdevMetric</title>
+          <meta name="description" content="StdevMetric - PredictionIO Scala API 0.14.0 - org.apache.predictionio.controller.StdevMetric" />
+          <meta name="keywords" content="StdevMetric PredictionIO Scala API 0.14.0 org.apache.predictionio.controller.StdevMetric" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -45,7 +45,7 @@
         <span class="kind">class</span>
       </span>
       <span class="symbol">
-        <span class="name">StdevMetric</span><span class="tparams">[<span name="EI">EI</span>, <span name="Q">Q</span>, <span name="P">P</span>, <span name="A">A</span>]</span><span class="result"> extends <a href="Metric.html" class="extype" name="org.apache.predictionio.controller.Metric">Metric</a>[<span class="extype" name="org.apache.predictionio.controller.StdevMetric.EI">EI</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.P">P</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.A">A</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Double" class="extype" target="_top">Double</a>] with <span class="extype" name="org.apache.predictionio.controller.StatsMetricHelper">StatsMetricHelper</span>[<span class="extype" name="org.apache.predictionio.controller.StdevMetric.EI">EI</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.P">P</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.A">A</span>] with <a href="QPAMetric.html" class="extype" name="org.apache.predictionio.controller.QPAMetric">QPAMetric</a>[<span class="extype" name="org.apache.predictionio.controller.StdevMetric.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.P">P</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.A">A</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Double" class="extype" target="_top">Double</a>]</span>
+        <span class="name">StdevMetric</span><span class="tparams">[<span name="EI">EI</span>, <span name="Q">Q</span>, <span name="P">P</span>, <span name="A">A</span>]</span><span class="result"> extends <a href="Metric.html" class="extype" name="org.apache.predictionio.controller.Metric">Metric</a>[<span class="extype" name="org.apache.predictionio.controller.StdevMetric.EI">EI</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.P">P</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.A">A</span>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Double" class="extype" target="_top">Double</a>] with <span class="extype" name="org.apache.predictionio.controller.StatsMetricHelper">StatsMetricHelper</span>[<span class="extype" name="org.apache.predictionio.controller.StdevMetric.EI">EI</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.P">P</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.A">A</span>] with <a href="QPAMetric.html" class="extype" name="org.apache.predictionio.controller.QPAMetric">QPAMetric</a>[<span class="extype" name="org.apache.predictionio.controller.StdevMetric.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.P">P</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.A">A</span>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Double" class="extype" target="_top">Double</a>]</span>
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@@ -53,7 +53,7 @@
 method is used for calculation
 </p></div><dl class="paramcmts block"><dt class="tparam">EI</dt><dd class="cmt"><p>Evaluation information</p></dd><dt class="tparam">Q</dt><dd class="cmt"><p>Query</p></dd><dt class="tparam">P</dt><dd class="cmt"><p>Predicted result</p></dd><dt class="tparam">A</dt><dd class="cmt"><p>Actual result</p></dd></dl><div class="toggleContainer block">
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+          <div class="superTypes hiddenContent"><a href="QPAMetric.html" class="extype" name="org.apache.predictionio.controller.QPAMetric">QPAMetric</a>[<span class="extype" name="org.apache.predictionio.controller.StdevMetric.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.P">P</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.A">A</span>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Double" class="extype" target="_top">Double</a>], <span class="extype" name="org.apache.predictionio.controller.StatsMetricHelper">StatsMetricHelper</span>[<span class="extype" name="org.apache.predictionio.controller.StdevMetric.EI">EI</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.P">P</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.A">A</span>], <a href="Metric.html" class="extype" name="org.apache.predictionio.controller.Metric">Metric</a>[<span class="extype" name="org.apache.predictionio.controller.StdevMetric.EI">EI</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.P">P</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.A">A</span>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Double" class="extype" target="_top">Double</a>], <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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@@ -123,7 +123,7 @@
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       </span>
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+        <span class="name">calculate</span><span class="params">(<span name="q">q: <span class="extype" name="org.apache.predictionio.controller.StdevMetric.Q">Q</span></span>, <span name="p">p: <span class="extype" name="org.apache.predictionio.controller.StdevMetric.P">P</span></span>, <span name="a">a: <span class="extype" name="org.apache.predictionio.controller.StdevMetric.A">A</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Double" class="extype" target="_top">Double</a></span>
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       </h4><span class="permalink">
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@@ -149,7 +149,7 @@
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       </span>
       <span class="symbol">
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+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.StdevMetric@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -166,7 +166,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.StdevMetric@##():Int" title="Permalink" target="_top">
@@ -183,7 +183,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.StdevMetric@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -217,7 +217,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">calculate</span><span class="params">(<span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>, <span name="evalDataSet">evalDataSet: <span class="extype" name="scala.Seq">Seq</span>[(<span class="extype" name="org.apache.predictionio.controller.StdevMetric.EI">EI</span>, <span class="extype" name="org.apache.spark.rdd.RDD">RDD</span>[(<span class="extype" name="org.apache.predictionio.controller.StdevMetric.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.P">P</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.A">A</span>)])]</span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Double" class="extype" target="_top">Double</a></span>
+        <span class="name">calculate</span><span class="params">(<span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>, <span name="evalDataSet">evalDataSet: <span class="extype" name="scala.Seq">Seq</span>[(<span class="extype" name="org.apache.predictionio.controller.StdevMetric.EI">EI</span>, <span class="extype" name="org.apache.spark.rdd.RDD">RDD</span>[(<span class="extype" name="org.apache.predictionio.controller.StdevMetric.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.P">P</span>, <span class="extype" name="org.apache.predictionio.controller.StdevMetric.A">A</span>)])]</span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Double" class="extype" target="_top">Double</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.StdevMetric@calculate(sc:org.apache.spark.SparkContext,evalDataSet:Seq[(EI,org.apache.spark.rdd.RDD[(Q,P,A)])]):Double" title="Permalink" target="_top">
@@ -251,7 +251,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.StdevMetric@clone():Object" title="Permalink" target="_top">
@@ -274,7 +274,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">compare</span><span class="params">(<span name="r0">r0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Double" class="extype" target="_top">Double</a></span>, <span name="r1">r1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Double" class="extype" target="_top">Double</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">compare</span><span class="params">(<span name="r0">r0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Double" class="extype" target="_top">Double</a></span>, <span name="r1">r1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Double" class="extype" target="_top">Double</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.StdevMetric@compare(r0:R,r1:R):Int" title="Permalink" target="_top">
@@ -291,7 +291,7 @@
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       <span class="symbol">
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+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.StdevMetric@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -308,7 +308,7 @@
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-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.controller.StdevMetric@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -325,7 +325,7 @@
         <span class="kind">def</span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.StdevMetric@finalize():Unit" title="Permalink" target="_top">
@@ -365,7 +365,7 @@
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.StdevMetric@hashCode():Int" title="Permalink" target="_top">
@@ -399,7 +399,7 @@
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-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.controller.StdevMetric@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -416,7 +416,7 @@
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.core.BuildInfo$@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -171,7 +171,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.core.BuildInfo$@clone():Object" title="Permalink" target="_top">
@@ -194,7 +194,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.core.BuildInfo$@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -211,7 +211,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.core.BuildInfo$@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -228,7 +228,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.core.BuildInfo$@finalize():Unit" title="Permalink" target="_top">
@@ -268,14 +268,14 @@
         <span class="kind">val</span>
       </span>
       <span class="symbol">
-        <span class="name">hadoopVersion</span><span class="result">: <span class="extype" name="java.lang.String">String</span></span>
+        <span class="name">hadoopVersion</span><span class="result">: <span class="extype" name="scala.Predef.String">String</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.core.BuildInfo$@hadoopVersion:String" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
-      <p class="shortcomment cmt">The value is &quot;2.7.3&quot;.</p>
+      <p class="shortcomment cmt">The value is &quot;2.7.7&quot;.</p>
     </li><li name="scala.Any#isInstanceOf" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="isInstanceOf[T0]:Boolean"></a>
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@@ -285,7 +285,7 @@
         <span class="kind">def</span>
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       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -302,7 +302,7 @@
         <span class="kind">val</span>
       </span>
       <span class="symbol">
-        <span class="name">name</span><span class="result">: <span class="extype" name="java.lang.String">String</span></span>
+        <span class="name">name</span><span class="result">: <span class="extype" name="scala.Predef.String">String</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.core.BuildInfo$@name:String" title="Permalink" target="_top">
@@ -319,7 +319,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
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       <a href="../../../../index.html#org.apache.predictionio.core.BuildInfo$@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -336,7 +336,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -353,7 +353,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
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       <a href="../../../../index.html#org.apache.predictionio.core.BuildInfo$@notifyAll():Unit" title="Permalink" target="_top">
@@ -370,14 +370,14 @@
         <span class="kind">val</span>
       </span>
       <span class="symbol">
-        <span class="name">sbtVersion</span><span class="result">: <span class="extype" name="java.lang.String">String</span></span>
+        <span class="name">sbtVersion</span><span class="result">: <span class="extype" name="scala.Predef.String">String</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.core.BuildInfo$@sbtVersion:String" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
-      <p class="shortcomment cmt">The value is &quot;0.13.15&quot;.</p>
+      <p class="shortcomment cmt">The value is &quot;1.2.3&quot;.</p>
     </li><li name="org.apache.predictionio.core.BuildInfo#scalaBinaryVersion" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
       <a id="scalaBinaryVersion:String"></a>
       <a id="scalaBinaryVersion:String"></a>
@@ -387,7 +387,7 @@
         <span class="kind">val</span>
       </span>
       <span class="symbol">
-        <span class="name">scalaBinaryVersion</span><span class="result">: <span class="extype" name="java.lang.String">String</span></span>
+        <span class="name">scalaBinaryVersion</span><span class="result">: <span class="extype" name="scala.Predef.String">String</span></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.core.BuildInfo$@scalaBinaryVersion:String" title="Permalink" target="_top">
@@ -404,14 +404,14 @@
         <span class="kind">val</span>
       </span>
       <span class="symbol">
-        <span class="name">scalaVersion</span><span class="result">: <span class="extype" name="java.lang.String">String</span></span>
+        <span class="name">scalaVersion</span><span class="result">: <span class="extype" name="scala.Predef.String">String</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.core.BuildInfo$@scalaVersion:String" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
-      <p class="shortcomment cmt">The value is &quot;2.11.8&quot;.</p>
+      <p class="shortcomment cmt">The value is &quot;2.11.12&quot;.</p>
     </li><li name="org.apache.predictionio.core.BuildInfo#sparkVersion" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
       <a id="sparkVersion:String"></a>
       <a id="sparkVersion:String"></a>
@@ -421,14 +421,14 @@
         <span class="kind">val</span>
       </span>
       <span class="symbol">
-        <span class="name">sparkVersion</span><span class="result">: <span class="extype" name="java.lang.String">String</span></span>
+        <span class="name">sparkVersion</span><span class="result">: <span class="extype" name="scala.Predef.String">String</span></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.core.BuildInfo$@sparkVersion:String" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
-      <p class="shortcomment cmt">The value is &quot;2.1.1&quot;.</p>
+      <p class="shortcomment cmt">The value is &quot;2.1.3&quot;.</p>
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@@ -446,23 +446,6 @@
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-      <a id="toMap:Map[String,Any]"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">val</span>
-      </span>
-      <span class="symbol">
-        <span class="name">toMap</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.collection.immutable.Map" class="extype" target="_top">Map</a>[<span class="extype" name="scala.Predef.String">String</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a>]</span>
-      </span>
-      </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.core.BuildInfo$@toMap:scala.collection.immutable.Map[String,Any]" title="Permalink" target="_top">
-        <img src="../../../../lib/permalink.png" alt="Permalink" />
-      </a>
-    </span>
-      
     </li><li name="org.apache.predictionio.core.BuildInfo#toString" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="toString:String"></a>
       <a id="toString:String"></a>
@@ -489,14 +472,14 @@
         <span class="kind">val</span>
       </span>
       <span class="symbol">
-        <span class="name">version</span><span class="result">: <span class="extype" name="java.lang.String">String</span></span>
+        <span class="name">version</span><span class="result">: <span class="extype" name="scala.Predef.String">String</span></span>
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       <a href="../../../../index.html#org.apache.predictionio.core.BuildInfo$@version:String" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
-      <p class="shortcomment cmt">The value is &quot;0.13.0&quot;.</p>
+      <p class="shortcomment cmt">The value is &quot;0.14.0&quot;.</p>
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       <a id="wait():Unit"></a>
       <a id="wait():Unit"></a>
@@ -506,7 +489,7 @@
         <span class="kind">def</span>
       </span>
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+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.core.BuildInfo$@wait():Unit" title="Permalink" target="_top">
@@ -529,7 +512,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.core.BuildInfo$@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -552,7 +535,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.core.BuildInfo$@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -576,17 +559,17 @@
 
         <div id="inheritedMembers">
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
             </div><div class="parent" name="java.io.Serializable">
               <h3>Inherited from <span class="extype" name="java.io.Serializable">Serializable</span></h3>
             </div><div class="parent" name="scala.Product">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a></h3>
             </div><div class="parent" name="scala.Equals">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Equals" class="extype" target="_top">Equals</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Equals" class="extype" target="_top">Equals</a></h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/core/Doer$.html b/api/current/org/apache/predictionio/core/Doer$.html
index af3710f..4458cba 100644
--- a/api/current/org/apache/predictionio/core/Doer$.html
+++ b/api/current/org/apache/predictionio/core/Doer$.html
@@ -1,9 +1,9 @@
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-          <title>Doer - PredictionIO Scala API 0.13.0 - org.apache.predictionio.core.Doer</title>
-          <meta name="description" content="Doer - PredictionIO Scala API 0.13.0 - org.apache.predictionio.core.Doer" />
-          <meta name="keywords" content="Doer PredictionIO Scala API 0.13.0 org.apache.predictionio.core.Doer" />
+          <title>Doer - PredictionIO Scala API 0.14.0 - org.apache.predictionio.core.Doer</title>
+          <meta name="description" content="Doer - PredictionIO Scala API 0.14.0 - org.apache.predictionio.core.Doer" />
+          <meta name="keywords" content="Doer PredictionIO Scala API 0.14.0 org.apache.predictionio.core.Doer" />
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@@ -56,7 +56,7 @@
               
         </dd></dl><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><span class="extype" name="grizzled.slf4j.Logging">Logging</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><span class="extype" name="grizzled.slf4j.Logging">Logging</span>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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@@ -108,7 +108,7 @@
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-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -125,7 +125,7 @@
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+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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index 5cff66a..6f087cf 100644
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@@ -1,9 +1,9 @@
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+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.core.EventWindow@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -477,17 +477,17 @@
 
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+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
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               <h3>Inherited from <span class="extype" name="java.io.Serializable">Serializable</span></h3>
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a></h3>
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Equals" class="extype" target="_top">Equals</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Equals" class="extype" target="_top">Equals</a></h3>
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
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diff --git a/api/current/org/apache/predictionio/core/SelfCleaningDataSource$DateTimeOrdering$.html b/api/current/org/apache/predictionio/core/SelfCleaningDataSource$DateTimeOrdering$.html
index 3e5b110..40fb1bd 100644
--- a/api/current/org/apache/predictionio/core/SelfCleaningDataSource$DateTimeOrdering$.html
+++ b/api/current/org/apache/predictionio/core/SelfCleaningDataSource$DateTimeOrdering$.html
@@ -1,9 +1,9 @@
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 <html>
         <head>
-          <title>DateTimeOrdering - PredictionIO Scala API 0.13.0 - org.apache.predictionio.core.SelfCleaningDataSource.DateTimeOrdering</title>
-          <meta name="description" content="DateTimeOrdering - PredictionIO Scala API 0.13.0 - org.apache.predictionio.core.SelfCleaningDataSource.DateTimeOrdering" />
-          <meta name="keywords" content="DateTimeOrdering PredictionIO Scala API 0.13.0 org.apache.predictionio.core.SelfCleaningDataSource.DateTimeOrdering" />
+          <title>DateTimeOrdering - PredictionIO Scala API 0.14.0 - org.apache.predictionio.core.SelfCleaningDataSource.DateTimeOrdering</title>
+          <meta name="description" content="DateTimeOrdering - PredictionIO Scala API 0.14.0 - org.apache.predictionio.core.SelfCleaningDataSource.DateTimeOrdering" />
+          <meta name="keywords" content="DateTimeOrdering PredictionIO Scala API 0.14.0 org.apache.predictionio.core.SelfCleaningDataSource.DateTimeOrdering" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -51,7 +51,7 @@
       
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+          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.math.Ordering" class="extype" target="_top">Ordering</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>], <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.math.PartialOrdering" class="extype" target="_top">PartialOrdering</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>], <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.math.Equiv" class="extype" target="_top">Equiv</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>], <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <span class="extype" name="java.util.Comparator">Comparator</span>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>], <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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@@ -99,7 +99,7 @@
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+        <span class="name">Ops</span><span class="result"> extends <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -123,7 +123,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -140,7 +140,7 @@
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+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -157,7 +157,7 @@
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+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -191,7 +191,7 @@
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+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -214,7 +214,7 @@
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+        <span class="name">compare</span><span class="params">(<span name="d1">d1: <span class="extype" name="org.joda.time.DateTime">DateTime</span></span>, <span name="d2">d2: <span class="extype" name="org.joda.time.DateTime">DateTime</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -231,7 +231,7 @@
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+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -248,7 +248,7 @@
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+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -265,7 +265,7 @@
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-        <span class="name">equiv</span><span class="params">(<span name="x">x: <span class="extype" name="org.joda.time.DateTime">DateTime</span></span>, <span name="y">y: <span class="extype" name="org.joda.time.DateTime">DateTime</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equiv</span><span class="params">(<span name="x">x: <span class="extype" name="org.joda.time.DateTime">DateTime</span></span>, <span name="y">y: <span class="extype" name="org.joda.time.DateTime">DateTime</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -282,7 +282,7 @@
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+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -322,7 +322,7 @@
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@@ -339,7 +339,7 @@
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@@ -373,7 +373,7 @@
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@@ -407,7 +407,7 @@
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@@ -492,7 +492,7 @@
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+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -526,7 +526,7 @@
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@@ -543,7 +543,7 @@
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@@ -713,7 +713,7 @@
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@@ -730,7 +730,7 @@
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@@ -753,7 +753,7 @@
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@@ -776,7 +776,7 @@
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
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+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/core/SelfCleaningDataSource.html b/api/current/org/apache/predictionio/core/SelfCleaningDataSource.html
index a288e70..e3c46f1 100644
--- a/api/current/org/apache/predictionio/core/SelfCleaningDataSource.html
+++ b/api/current/org/apache/predictionio/core/SelfCleaningDataSource.html
@@ -1,9 +1,9 @@
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-          <meta name="keywords" content="SelfCleaningDataSource PredictionIO Scala API 0.13.0 org.apache.predictionio.core.SelfCleaningDataSource" />
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+          <meta name="description" content="SelfCleaningDataSource - PredictionIO Scala API 0.14.0 - org.apache.predictionio.core.SelfCleaningDataSource" />
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@@ -45,7 +45,7 @@
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+        <span class="name">SelfCleaningDataSource</span><span class="result"> extends <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -57,7 +57,7 @@
               
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@@ -135,7 +135,7 @@
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+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -551,7 +551,7 @@
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@@ -568,7 +568,7 @@
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@@ -585,7 +585,7 @@
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@@ -602,7 +602,7 @@
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@@ -619,7 +619,7 @@
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@@ -670,7 +670,7 @@
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@@ -744,7 +744,7 @@
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@@ -767,7 +767,7 @@
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+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -790,7 +790,7 @@
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@@ -809,7 +809,7 @@
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+        <span class="name">wipePEvents</span><span class="params">(<span name="newEvents">newEvents: <span class="extype" name="org.apache.spark.rdd.RDD">RDD</span>[<a href="../data/storage/Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a>]</span>, <span name="eventsToRemove">eventsToRemove: <span class="extype" name="org.apache.spark.rdd.RDD">RDD</span>[<span class="extype" name="scala.Predef.String">String</span>]</span>, <span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -827,9 +827,9 @@
 
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+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
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+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/core/package.html b/api/current/org/apache/predictionio/core/package.html
index f9dc98d..9363668 100644
--- a/api/current/org/apache/predictionio/core/package.html
+++ b/api/current/org/apache/predictionio/core/package.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>core - PredictionIO Scala API 0.13.0 - org.apache.predictionio.core</title>
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-          <meta name="keywords" content="core PredictionIO Scala API 0.13.0 org.apache.predictionio.core" />
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+          <meta name="description" content="core - PredictionIO Scala API 0.14.0 - org.apache.predictionio.core" />
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       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -51,7 +51,7 @@
 should not use these directly.
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+          <div class="superTypes hiddenContent"><span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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@@ -99,7 +99,7 @@
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       </span>
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+        <a href="AbstractDoer.html"><span class="name">AbstractDoer</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.core.package@AbstractDoerextendsSerializable" title="Permalink" target="_top">
@@ -171,7 +171,7 @@
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@@ -219,7 +219,7 @@
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+        <a href="BaseEvaluatorResult.html"><span class="name">BaseEvaluatorResult</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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@@ -259,7 +259,7 @@
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@@ -309,7 +309,7 @@
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.core.package@EventWindowextendsProductwithSerializable" title="Permalink" target="_top">
@@ -326,7 +326,7 @@
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@@ -357,7 +357,7 @@
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+        <span class="name">contains</span><span class="params">(<span name="id">id: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -302,7 +302,7 @@
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@@ -336,7 +336,7 @@
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-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -353,7 +353,7 @@
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-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -370,7 +370,7 @@
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+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -393,7 +393,7 @@
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+        <span class="name">get</span><span class="params">(<span name="ix">ix: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
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@@ -410,7 +410,7 @@
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-        <span class="name">get</span><span class="params">(<span name="id">id: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a>]</span>
+        <span class="name">get</span><span class="params">(<span name="id">id: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a>]</span>
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@@ -444,7 +444,7 @@
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-        <span class="name">getData</span><span class="params">(<span name="ix">ix: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.apache.predictionio.data.storage.EntityMap.A">A</span>]</span>
+        <span class="name">getData</span><span class="params">(<span name="ix">ix: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.apache.predictionio.data.storage.EntityMap.A">A</span>]</span>
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@@ -461,7 +461,7 @@
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-        <span class="name">getData</span><span class="params">(<span name="id">id: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.apache.predictionio.data.storage.EntityMap.A">A</span>]</span>
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@@ -478,7 +478,7 @@
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-        <span class="name">getOrElse</span><span class="params">(<span name="ix">ix: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="default">default: ⇒ <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result">: <span class="extype" name="scala.Predef.String">String</span></span>
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@@ -495,7 +495,7 @@
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-        <span class="name">getOrElse</span><span class="params">(<span name="id">id: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="default">default: ⇒ <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>
+        <span class="name">getOrElse</span><span class="params">(<span name="id">id: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="default">default: ⇒ <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>
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@@ -512,7 +512,7 @@
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@@ -546,7 +546,7 @@
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@@ -580,7 +580,7 @@
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+        <span class="name">futureDelete</span><span class="params">(<span name="eventId">eventId: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="appId">appId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>, <span name="channelId">channelId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a>]</span>)</span><span class="params">(<span class="implicit">implicit </span><span name="ec">ec: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.concurrent.ExecutionContext" class="extype" target="_top">ExecutionContext</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.concurrent.Future" class="extype" target="_top">Future</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a>]</span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../index.html#org.apache.predictionio.data.storage.LEvents@futureDelete(eventId:String,appId:Int,channelId:Option[Int])(implicitec:scala.concurrent.ExecutionContext):scala.concurrent.Future[Boolean]" title="Permalink" target="_top">
@@ -155,7 +155,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">futureFind</span><span class="params">(<span name="appId">appId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>, <span name="channelId">channelId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>, <span name="startTime">startTime: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>] = <span class="symbol">None</span></span>, <span name="untilTime">untilTime: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>] = <span class="symbol">None</span></span>, <span name="entityType">entityType: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="entityId">entityId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="eventNames">eventNames: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Seq">Seq</span>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="targetEntityType">targetEntityType: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="targetEntityId">targetEntityId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="limit">limit: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>, <span name="reversed">reversed: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a>] = <span class="symbol">None</span></span>)</span><span class="params">(<span class="implicit">implicit </span><span name="ec">ec: <span class="extype" name="scala.concurrent.ExecutionContext">ExecutionContext</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.concurrent.Future" class="extype" target="_top">Future</a>[<span class="extype" name="scala.Iterator">Iterator</span>[<a href="Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a>]]</span>
+        <span class="name">futureFind</span><span class="params">(<span name="appId">appId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>, <span name="channelId">channelId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>, <span name="startTime">startTime: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>] = <span class="symbol">None</span></span>, <span name="untilTime">untilTime: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>] = <span class="symbol">None</span></span>, <span name="entityType">entityType: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="entityId">entityId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="eventNames">eventNames: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Seq">Seq</span>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="targetEntityType">targetEntityType: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="targetEntityId">targetEntityId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="limit">limit: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>, <span name="reversed">reversed: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a>] = <span class="symbol">None</span></span>)</span><span class="params">(<span class="implicit">implicit </span><span name="ec">ec: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.concurrent.ExecutionContext" class="extype" target="_top">ExecutionContext</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.concurrent.Future" class="extype" target="_top">Future</a>[<span class="extype" name="scala.Iterator">Iterator</span>[<a href="Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a>]]</span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../index.html#org.apache.predictionio.data.storage.LEvents@futureFind(appId:Int,channelId:Option[Int],startTime:Option[org.joda.time.DateTime],untilTime:Option[org.joda.time.DateTime],entityType:Option[String],entityId:Option[String],eventNames:Option[Seq[String]],targetEntityType:Option[Option[String]],targetEntityId:Option[Option[String]],limit:Option[Int],reversed:Option[Boolean])(implicitec:scala.concurrent.ExecutionContext):scala.concurrent.Future[Iterator[org.apache.predictionio.data.storage.Event]]" title="Permalink" target="_top">
@@ -178,7 +178,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">futureGet</span><span class="params">(<span name="eventId">eventId: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="appId">appId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>, <span name="channelId">channelId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a>]</span>)</span><span class="params">(<span class="implicit">implicit </span><span name="ec">ec: <span class="extype" name="scala.concurrent.ExecutionContext">ExecutionContext</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.concurrent.Future" class="extype" target="_top">Future</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a>]]</span>
+        <span class="name">futureGet</span><span class="params">(<span name="eventId">eventId: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="appId">appId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>, <span name="channelId">channelId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a>]</span>)</span><span class="params">(<span class="implicit">implicit </span><span name="ec">ec: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.concurrent.ExecutionContext" class="extype" target="_top">ExecutionContext</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.concurrent.Future" class="extype" target="_top">Future</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a>]]</span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../index.html#org.apache.predictionio.data.storage.LEvents@futureGet(eventId:String,appId:Int,channelId:Option[Int])(implicitec:scala.concurrent.ExecutionContext):scala.concurrent.Future[Option[org.apache.predictionio.data.storage.Event]]" title="Permalink" target="_top">
@@ -201,7 +201,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">futureInsert</span><span class="params">(<span name="event">event: <a href="Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a></span>, <span name="appId">appId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>, <span name="channelId">channelId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a>]</span>)</span><span class="params">(<span class="implicit">implicit </span><span name="ec">ec: <span class="extype" name="scala.concurrent.ExecutionContext">ExecutionContext</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.concurrent.Future" class="extype" target="_top">Future</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
+        <span class="name">futureInsert</span><span class="params">(<span name="event">event: <a href="Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a></span>, <span name="appId">appId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>, <span name="channelId">channelId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a>]</span>)</span><span class="params">(<span class="implicit">implicit </span><span name="ec">ec: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.concurrent.ExecutionContext" class="extype" target="_top">ExecutionContext</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.concurrent.Future" class="extype" target="_top">Future</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../index.html#org.apache.predictionio.data.storage.LEvents@futureInsert(event:org.apache.predictionio.data.storage.Event,appId:Int,channelId:Option[Int])(implicitec:scala.concurrent.ExecutionContext):scala.concurrent.Future[String]" title="Permalink" target="_top">
@@ -224,7 +224,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">init</span><span class="params">(<span name="appId">appId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>, <span name="channelId">channelId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">init</span><span class="params">(<span name="appId">appId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>, <span name="channelId">channelId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../index.html#org.apache.predictionio.data.storage.LEvents@init(appId:Int,channelId:Option[Int]):Boolean" title="Permalink" target="_top">
@@ -248,7 +248,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">remove</span><span class="params">(<span name="appId">appId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>, <span name="channelId">channelId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">remove</span><span class="params">(<span name="appId">appId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>, <span name="channelId">channelId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../index.html#org.apache.predictionio.data.storage.LEvents@remove(appId:Int,channelId:Option[Int]):Boolean" title="Permalink" target="_top">
@@ -276,7 +276,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../index.html#org.apache.predictionio.data.storage.LEvents@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -293,7 +293,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       </h4><span class="permalink">
       <a href="../../../../../index.html#org.apache.predictionio.data.storage.LEvents@##():Int" title="Permalink" target="_top">
@@ -310,7 +310,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../index.html#org.apache.predictionio.data.storage.LEvents@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -344,7 +344,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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       </h4><span class="permalink">
       <a href="../../../../../index.html#org.apache.predictionio.data.storage.LEvents@clone():Object" title="Permalink" target="_top">
@@ -367,7 +367,7 @@
         <span class="kind">val</span>
       </span>
       <span class="symbol">
-        <span class="name">defaultTimeout</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.concurrent.duration.FiniteDuration" class="extype" target="_top">FiniteDuration</a></span>
+        <span class="name">defaultTimeout</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.concurrent.duration.FiniteDuration" class="extype" target="_top">FiniteDuration</a></span>
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       </h4><span class="permalink">
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@@ -384,7 +384,7 @@
         <span class="kind">def</span>
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-        <a href="LEvents.html"><span class="name">LEvents</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <a href="LEvents.html"><span class="name">LEvents</span></a><span class="result"> extends <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -570,7 +570,7 @@
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-        <a href="Model.html"><span class="name">Model</span></a><span class="params">(<span name="id">id: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="models">models: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Array" class="extype" target="_top">Array</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Byte" class="extype" target="_top">Byte</a>]</span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <a href="Model.html"><span class="name">Model</span></a><span class="params">(<span name="id">id: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="models">models: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Array" class="extype" target="_top">Array</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Byte" class="extype" target="_top">Byte</a>]</span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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-        <a href="Models.html"><span class="name">Models</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <a href="Models.html"><span class="name">Models</span></a><span class="result"> extends <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -642,7 +642,7 @@
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+        <a href="NullModel.html"><span class="name">NullModel</span></a><span class="params">()</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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@@ -659,7 +659,7 @@
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-        <a href="PEvents.html"><span class="name">PEvents</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <a href="PEvents.html"><span class="name">PEvents</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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@@ -707,7 +707,7 @@
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-        <a href="StorageClientConfig.html"><span class="name">StorageClientConfig</span></a><span class="params">(<span name="parallel">parallel: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="test">test: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="properties">properties: <span class="extype" name="scala.Predef.Map">Map</span>[<span class="extype" name="scala.Predef.String">String</span>, <span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">Map.empty</span></span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <a href="StorageClientConfig.html"><span class="name">StorageClientConfig</span></a><span class="params">(<span name="parallel">parallel: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="test">test: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="properties">properties: <span class="extype" name="scala.Predef.Map">Map</span>[<span class="extype" name="scala.Predef.String">String</span>, <span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">Map.empty</span></span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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+        <a href="BiMap$.html"><span class="name">BiMap</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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@@ -830,7 +830,7 @@
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+        <a href="Channel$.html"><span class="name">Channel</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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@@ -854,7 +854,7 @@
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+        <a href="DataMap$.html"><span class="name">DataMap</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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@@ -896,7 +896,7 @@
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+        <a href="EntityIdIxMap$.html"><span class="name">EntityIdIxMap</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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@@ -1006,7 +1006,7 @@
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+        <a href="PropertyMap$.html"><span class="name">PropertyMap</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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@@ -1043,9 +1043,9 @@
 
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+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/data/store/LEventStore$.html b/api/current/org/apache/predictionio/data/store/LEventStore$.html
index d68f714..938908c 100644
--- a/api/current/org/apache/predictionio/data/store/LEventStore$.html
+++ b/api/current/org/apache/predictionio/data/store/LEventStore$.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>LEventStore - PredictionIO Scala API 0.13.0 - org.apache.predictionio.data.store.LEventStore</title>
-          <meta name="description" content="LEventStore - PredictionIO Scala API 0.13.0 - org.apache.predictionio.data.store.LEventStore" />
-          <meta name="keywords" content="LEventStore PredictionIO Scala API 0.13.0 org.apache.predictionio.data.store.LEventStore" />
+          <title>LEventStore - PredictionIO Scala API 0.14.0 - org.apache.predictionio.data.store.LEventStore</title>
+          <meta name="description" content="LEventStore - PredictionIO Scala API 0.14.0 - org.apache.predictionio.data.store.LEventStore" />
+          <meta name="keywords" content="LEventStore PredictionIO Scala API 0.14.0 org.apache.predictionio.data.store.LEventStore" />
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@@ -50,10 +50,19 @@
       </h4>
       
           <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>This object provides a set of operation to access Event Store
-without going through Spark's parallelization
+without going through Spark's parallelization.</p><p>Note that blocking methods of this object uses
+<code>scala.concurrent.ExecutionContext.Implicits.global</code> internally.
+Since this is a thread pool which has a number of threads equal to available
+processors, parallelism is limited up to the number of processors.</p><p>If this limitation become bottleneck of resource usage, you can increase the
+number of threads by declaring following VM options before calling &quot;pio deploy&quot;:</p><p><pre>
+export JAVA_OPTS="$JAVA_OPTS \
+  -Dscala.concurrent.context.numThreads=1000 \
+  -Dscala.concurrent.context.maxThreads=1000"
+</pre></p><p>You can learn more about the global execution context in the Scala documentation:
+<a href="https://docs.scala-lang.org/overviews/core/futures.html#the-global-execution-context" target="_blank">https://docs.scala-lang.org/overviews/core/futures.html#the-global-execution-context</a>
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@@ -139,7 +148,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -173,7 +182,7 @@
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@@ -196,7 +205,7 @@
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       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../index.html#org.apache.predictionio.data.store.LEventStore$@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -213,7 +222,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../index.html#org.apache.predictionio.data.store.LEventStore$@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -230,7 +239,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../index.html#org.apache.predictionio.data.store.LEventStore$@finalize():Unit" title="Permalink" target="_top">
@@ -253,7 +262,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">find</span><span class="params">(<span name="appName">appName: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityType">entityType: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="entityId">entityId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="channelName">channelName: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="eventNames">eventNames: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Seq">Seq</span>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="targetEntityType">targetEntityType: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="targetEntityId">targetEntityId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="startTime">startTime: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>] = <span class="symbol">None</span></span>, <span name="untilTime">untilTime: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>] = <span class="symbol">None</span></span>, <span name="limit">limit: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>, <span name="timeout">timeout: <span class="extype" name="scala.concurrent.duration.Duration">Duration</span> = <span class="symbol">defaultTimeout</span></span>)</span><span class="result">: <span class="extype" name="scala.Iterator">Iterator</span>[<a href="../storage/Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a>]</span>
+        <span class="name">find</span><span class="params">(<span name="appName">appName: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityType">entityType: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="entityId">entityId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="channelName">channelName: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="eventNames">eventNames: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Seq">Seq</span>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="targetEntityType">targetEntityType: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="targetEntityId">targetEntityId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="startTime">startTime: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>] = <span class="symbol">None</span></span>, <span name="untilTime">untilTime: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>] = <span class="symbol">None</span></span>, <span name="limit">limit: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>, <span name="timeout">timeout: <span class="extype" name="scala.concurrent.duration.Duration">Duration</span> = <span class="symbol">defaultTimeout</span></span>)</span><span class="result">: <span class="extype" name="scala.Iterator">Iterator</span>[<a href="../storage/Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a>]</span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../index.html#org.apache.predictionio.data.store.LEventStore$@find(appName:String,entityType:Option[String],entityId:Option[String],channelName:Option[String],eventNames:Option[Seq[String]],targetEntityType:Option[Option[String]],targetEntityId:Option[Option[String]],startTime:Option[org.joda.time.DateTime],untilTime:Option[org.joda.time.DateTime],limit:Option[Int],timeout:scala.concurrent.duration.Duration):Iterator[org.apache.predictionio.data.storage.Event]" title="Permalink" target="_top">
@@ -263,6 +272,25 @@
       <p class="shortcomment cmt">Reads events generically.</p><div class="fullcomment"><div class="comment cmt"><p>Reads events generically. If entityType or entityId is not specified, it
 results in table scan.
 </p></div><dl class="paramcmts block"><dt class="param">appName</dt><dd class="cmt"><p>return events of this app</p></dd><dt class="param">entityType</dt><dd class="cmt"><p>return events of this entityType</p><ul><li>None means no restriction on entityType</li><li>Some(x) means entityType should match x.</li></ul></dd><dt class="param">entityId</dt><dd class="cmt"><p>return events of this entityId</p><ul><li>None means no restriction on entityId</li><li>Some(x) means entityId should match x.</li></ul></dd><dt class="param">channelName</dt><dd class="cmt"><p>return events of this channel (default channel if it's None)</p></dd><dt class="param">eventNames</dt><dd class="cmt"><p>return events with any of these event names.</p></dd><dt class="param">targetEntityType</dt><dd class="cmt"><p>return events of this targetEntityType:</p><ul><li>None means no restriction on targetEntityType</li><li>Some(None) means no targetEntityType for this event</li><li>Some(Some(x)) means targetEntityType should match x.</li></ul></dd><dt class="param">targetEntityId</dt><dd class="cmt"><p>return events of this targetEntityId</p><ul><li>None means no restriction on targetEntityId</li><li>Some(None) means no targetEntityId for this event</li><li>Some(Some(x)) means targetEntityId should match x.</li></ul></dd><dt class="param">startTime</dt><dd class="cmt"><p>return events with eventTime &gt;= startTime</p></dd><dt class="param">untilTime</dt><dd class="cmt"><p>return events with eventTime &lt; untilTime</p></dd><dt class="param">limit</dt><dd class="cmt"><p>Limit number of events. Get all events if None or Some(-1)</p></dd><dt>returns</dt><dd class="cmt"><p>Iterator[Event]</p></dd></dl></div>
+    </li><li name="org.apache.predictionio.data.store.LEventStore#findAsync" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="findAsync(appName:String,entityType:Option[String],entityId:Option[String],channelName:Option[String],eventNames:Option[Seq[String]],targetEntityType:Option[Option[String]],targetEntityId:Option[Option[String]],startTime:Option[org.joda.time.DateTime],untilTime:Option[org.joda.time.DateTime],limit:Option[Int])(implicitec:scala.concurrent.ExecutionContext):scala.concurrent.Future[Iterator[org.apache.predictionio.data.storage.Event]]"></a>
+      <a id="findAsync(String,Option[String],Option[String],Option[String],Option[Seq[String]],Option[Option[String]],Option[Option[String]],Option[DateTime],Option[DateTime],Option[Int])(ExecutionContext):Future[Iterator[Event]]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">findAsync</span><span class="params">(<span name="appName">appName: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityType">entityType: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="entityId">entityId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="channelName">channelName: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="eventNames">eventNames: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Seq">Seq</span>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="targetEntityType">targetEntityType: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="targetEntityId">targetEntityId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="startTime">startTime: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>] = <span class="symbol">None</span></span>, <span name="untilTime">untilTime: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>] = <span class="symbol">None</span></span>, <span name="limit">limit: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>)</span><span class="params">(<span class="implicit">implicit </span><span name="ec">ec: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.concurrent.ExecutionContext" class="extype" target="_top">ExecutionContext</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.concurrent.Future" class="extype" target="_top">Future</a>[<span class="extype" name="scala.Iterator">Iterator</span>[<a href="../storage/Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a>]]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.data.store.LEventStore$@findAsync(appName:String,entityType:Option[String],entityId:Option[String],channelName:Option[String],eventNames:Option[Seq[String]],targetEntityType:Option[Option[String]],targetEntityId:Option[Option[String]],startTime:Option[org.joda.time.DateTime],untilTime:Option[org.joda.time.DateTime],limit:Option[Int])(implicitec:scala.concurrent.ExecutionContext):scala.concurrent.Future[Iterator[org.apache.predictionio.data.storage.Event]]" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">Reads events generically.</p><div class="fullcomment"><div class="comment cmt"><p>Reads events generically. If entityType or entityId is not specified, it
+results in table scan.
+</p></div><dl class="paramcmts block"><dt class="param">appName</dt><dd class="cmt"><p>return events of this app</p></dd><dt class="param">entityType</dt><dd class="cmt"><p>return events of this entityType</p><ul><li>None means no restriction on entityType</li><li>Some(x) means entityType should match x.</li></ul></dd><dt class="param">entityId</dt><dd class="cmt"><p>return events of this entityId</p><ul><li>None means no restriction on entityId</li><li>Some(x) means entityId should match x.</li></ul></dd><dt class="param">channelName</dt><dd class="cmt"><p>return events of this channel (default channel if it's None)</p></dd><dt class="param">eventNames</dt><dd class="cmt"><p>return events with any of these event names.</p></dd><dt class="param">targetEntityType</dt><dd class="cmt"><p>return events of this targetEntityType:</p><ul><li>None means no restriction on targetEntityType</li><li>Some(None) means no targetEntityType for this event</li><li>Some(Some(x)) means targetEntityType should match x.</li></ul></dd><dt class="param">targetEntityId</dt><dd class="cmt"><p>return events of this targetEntityId</p><ul><li>None means no restriction on targetEntityId</li><li>Some(None) means no targetEntityId for this event</li><li>Some(Some(x)) means targetEntityId should match x.</li></ul></dd><dt class="param">startTime</dt><dd class="cmt"><p>return events with eventTime &gt;= startTime</p></dd><dt class="param">untilTime</dt><dd class="cmt"><p>return events with eventTime &lt; untilTime</p></dd><dt class="param">limit</dt><dd class="cmt"><p>Limit number of events. Get all events if None or Some(-1)</p></dd><dt>returns</dt><dd class="cmt"><p>Future[Iterator[Event]]</p></dd></dl></div>
     </li><li name="org.apache.predictionio.data.store.LEventStore#findByEntity" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="findByEntity(appName:String,entityType:String,entityId:String,channelName:Option[String],eventNames:Option[Seq[String]],targetEntityType:Option[Option[String]],targetEntityId:Option[Option[String]],startTime:Option[org.joda.time.DateTime],untilTime:Option[org.joda.time.DateTime],limit:Option[Int],latest:Boolean,timeout:scala.concurrent.duration.Duration):Iterator[org.apache.predictionio.data.storage.Event]"></a>
       <a id="findByEntity(String,String,String,Option[String],Option[Seq[String]],Option[Option[String]],Option[Option[String]],Option[DateTime],Option[DateTime],Option[Int],Boolean,Duration):Iterator[Event]"></a>
@@ -272,7 +300,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">findByEntity</span><span class="params">(<span name="appName">appName: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityType">entityType: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityId">entityId: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="channelName">channelName: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="eventNames">eventNames: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Seq">Seq</span>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="targetEntityType">targetEntityType: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="targetEntityId">targetEntityId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="startTime">startTime: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>] = <span class="symbol">None</span></span>, <span name="untilTime">untilTime: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>] = <span class="symbol">None</span></span>, <span name="limit">limit: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>, <span name="latest">latest: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">true</span></span>, <span name="timeout">timeout: <span class="extype" name="scala.concurrent.duration.Duration">Duration</span> = <span class="symbol">defaultTimeout</span></span>)</span><span class="result">: <span class="extype" name="scala.Iterator">Iterator</span>[<a href="../storage/Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a>]</span>
+        <span class="name">findByEntity</span><span class="params">(<span name="appName">appName: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityType">entityType: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityId">entityId: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="channelName">channelName: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="eventNames">eventNames: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Seq">Seq</span>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="targetEntityType">targetEntityType: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="targetEntityId">targetEntityId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="startTime">startTime: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>] = <span class="symbol">None</span></span>, <span name="untilTime">untilTime: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>] = <span class="symbol">None</span></span>, <span name="limit">limit: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>, <span name="latest">latest: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">true</span></span>, <span name="timeout">timeout: <span class="extype" name="scala.concurrent.duration.Duration">Duration</span> = <span class="symbol">defaultTimeout</span></span>)</span><span class="result">: <span class="extype" name="scala.Iterator">Iterator</span>[<a href="../storage/Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a>]</span>
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@@ -282,6 +310,25 @@
       <p class="shortcomment cmt">Reads events of the specified entity.</p><div class="fullcomment"><div class="comment cmt"><p>Reads events of the specified entity. May use this in Algorithm's predict()
 or Serving logic to have fast event store access.
 </p></div><dl class="paramcmts block"><dt class="param">appName</dt><dd class="cmt"><p>return events of this app</p></dd><dt class="param">entityType</dt><dd class="cmt"><p>return events of this entityType</p></dd><dt class="param">entityId</dt><dd class="cmt"><p>return events of this entityId</p></dd><dt class="param">channelName</dt><dd class="cmt"><p>return events of this channel (default channel if it's None)</p></dd><dt class="param">eventNames</dt><dd class="cmt"><p>return events with any of these event names.</p></dd><dt class="param">targetEntityType</dt><dd class="cmt"><p>return events of this targetEntityType:</p><ul><li>None means no restriction on targetEntityType</li><li>Some(None) means no targetEntityType for this event</li><li>Some(Some(x)) means targetEntityType should match x.</li></ul></dd><dt class="param">targetEntityId</dt><dd class="cmt"><p>return events of this targetEntityId</p><ul><li>None means no restriction on targetEntityId</li><li>Some(None) means no targetEntityId for this event</li><li>Some(Some(x)) means targetEntityId should match x.</li></ul></dd><dt class="param">startTime</dt><dd class="cmt"><p>return events with eventTime &gt;= startTime</p></dd><dt class="param">untilTime</dt><dd class="cmt"><p>return events with eventTime &lt; untilTime</p></dd><dt class="param">limit</dt><dd class="cmt"><p>Limit number of events. Get all events if None or Some(-1)</p></dd><dt class="param">latest</dt><dd class="cmt"><p>Return latest event first (default true)</p></dd><dt>returns</dt><dd class="cmt"><p>Iterator[Event]</p></dd></dl></div>
+    </li><li name="org.apache.predictionio.data.store.LEventStore#findByEntityAsync" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="findByEntityAsync(appName:String,entityType:String,entityId:String,channelName:Option[String],eventNames:Option[Seq[String]],targetEntityType:Option[Option[String]],targetEntityId:Option[Option[String]],startTime:Option[org.joda.time.DateTime],untilTime:Option[org.joda.time.DateTime],limit:Option[Int],latest:Boolean)(implicitec:scala.concurrent.ExecutionContext):scala.concurrent.Future[Iterator[org.apache.predictionio.data.storage.Event]]"></a>
+      <a id="findByEntityAsync(String,String,String,Option[String],Option[Seq[String]],Option[Option[String]],Option[Option[String]],Option[DateTime],Option[DateTime],Option[Int],Boolean)(ExecutionContext):Future[Iterator[Event]]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">findByEntityAsync</span><span class="params">(<span name="appName">appName: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityType">entityType: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityId">entityId: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="channelName">channelName: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="eventNames">eventNames: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Seq">Seq</span>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="targetEntityType">targetEntityType: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="targetEntityId">targetEntityId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]] = <span class="symbol">None</span></span>, <span name="startTime">startTime: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>] = <span class="symbol">None</span></span>, <span name="untilTime">untilTime: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>] = <span class="symbol">None</span></span>, <span name="limit">limit: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>, <span name="latest">latest: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">true</span></span>)</span><span class="params">(<span class="implicit">implicit </span><span name="ec">ec: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.concurrent.ExecutionContext" class="extype" target="_top">ExecutionContext</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.concurrent.Future" class="extype" target="_top">Future</a>[<span class="extype" name="scala.Iterator">Iterator</span>[<a href="../storage/Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a>]]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.data.store.LEventStore$@findByEntityAsync(appName:String,entityType:String,entityId:String,channelName:Option[String],eventNames:Option[Seq[String]],targetEntityType:Option[Option[String]],targetEntityId:Option[Option[String]],startTime:Option[org.joda.time.DateTime],untilTime:Option[org.joda.time.DateTime],limit:Option[Int],latest:Boolean)(implicitec:scala.concurrent.ExecutionContext):scala.concurrent.Future[Iterator[org.apache.predictionio.data.storage.Event]]" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">Reads events of the specified entity.</p><div class="fullcomment"><div class="comment cmt"><p>Reads events of the specified entity. May use this in Algorithm's predict()
+or Serving logic to have fast event store access.
+</p></div><dl class="paramcmts block"><dt class="param">appName</dt><dd class="cmt"><p>return events of this app</p></dd><dt class="param">entityType</dt><dd class="cmt"><p>return events of this entityType</p></dd><dt class="param">entityId</dt><dd class="cmt"><p>return events of this entityId</p></dd><dt class="param">channelName</dt><dd class="cmt"><p>return events of this channel (default channel if it's None)</p></dd><dt class="param">eventNames</dt><dd class="cmt"><p>return events with any of these event names.</p></dd><dt class="param">targetEntityType</dt><dd class="cmt"><p>return events of this targetEntityType:</p><ul><li>None means no restriction on targetEntityType</li><li>Some(None) means no targetEntityType for this event</li><li>Some(Some(x)) means targetEntityType should match x.</li></ul></dd><dt class="param">targetEntityId</dt><dd class="cmt"><p>return events of this targetEntityId</p><ul><li>None means no restriction on targetEntityId</li><li>Some(None) means no targetEntityId for this event</li><li>Some(Some(x)) means targetEntityId should match x.</li></ul></dd><dt class="param">startTime</dt><dd class="cmt"><p>return events with eventTime &gt;= startTime</p></dd><dt class="param">untilTime</dt><dd class="cmt"><p>return events with eventTime &lt; untilTime</p></dd><dt class="param">limit</dt><dd class="cmt"><p>Limit number of events. Get all events if None or Some(-1)</p></dd><dt class="param">latest</dt><dd class="cmt"><p>Return latest event first (default true)</p></dd><dt>returns</dt><dd class="cmt"><p>Future[Iterator[Event]]</p></dd></dl></div>
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+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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-          <meta name="keywords" content="PEventStore PredictionIO Scala API 0.13.0 org.apache.predictionio.data.store.PEventStore" />
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@@ -122,7 +122,7 @@
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@@ -139,7 +139,7 @@
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@@ -156,7 +156,7 @@
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@@ -193,7 +193,7 @@
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@@ -233,7 +233,7 @@
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@@ -273,7 +273,7 @@
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@@ -474,7 +474,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../index.html#org.apache.predictionio.data.store.PEventStore$@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -498,9 +498,9 @@
 
         <div id="inheritedMembers">
         <div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/data/store/java/LJavaEventStore$.html b/api/current/org/apache/predictionio/data/store/java/LJavaEventStore$.html
index 01f0cb9..3936e7f 100644
--- a/api/current/org/apache/predictionio/data/store/java/LJavaEventStore$.html
+++ b/api/current/org/apache/predictionio/data/store/java/LJavaEventStore$.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>LJavaEventStore - PredictionIO Scala API 0.13.0 - org.apache.predictionio.data.store.java.LJavaEventStore</title>
-          <meta name="description" content="LJavaEventStore - PredictionIO Scala API 0.13.0 - org.apache.predictionio.data.store.java.LJavaEventStore" />
-          <meta name="keywords" content="LJavaEventStore PredictionIO Scala API 0.13.0 org.apache.predictionio.data.store.java.LJavaEventStore" />
+          <title>LJavaEventStore - PredictionIO Scala API 0.14.0 - org.apache.predictionio.data.store.java.LJavaEventStore</title>
+          <meta name="description" content="LJavaEventStore - PredictionIO Scala API 0.14.0 - org.apache.predictionio.data.store.java.LJavaEventStore" />
+          <meta name="keywords" content="LJavaEventStore PredictionIO Scala API 0.14.0 org.apache.predictionio.data.store.java.LJavaEventStore" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -50,10 +50,19 @@
       </h4>
       
           <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>This Java-friendly object provides a set of operation to access Event Store
-without going through Spark's parallelization
+without going through Spark's parallelization.</p><p>Note that blocking methods of this object uses
+<code>scala.concurrent.ExecutionContext.Implicits.global</code> internally.
+Since this is a thread pool which has a number of threads equal to available
+processors, parallelism is limited up to the number of processors.</p><p>If this limitation become bottleneck of resource usage, you can increase the
+number of threads by declaring following VM options before calling &quot;pio deploy&quot;:</p><p><pre>
+export JAVA_OPTS="$JAVA_OPTS \
+  -Dscala.concurrent.context.numThreads=1000 \
+  -Dscala.concurrent.context.maxThreads=1000"
+</pre></p><p>You can learn more about the global execution context in the Scala documentation:
+<a href="https://docs.scala-lang.org/overviews/core/futures.html#the-global-execution-context" target="_blank">https://docs.scala-lang.org/overviews/core/futures.html#the-global-execution-context</a>
 </p></div><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
         </div></div>
         
 
@@ -105,7 +114,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../../index.html#org.apache.predictionio.data.store.java.LJavaEventStore$@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -122,7 +131,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -139,7 +148,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
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@@ -173,7 +182,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../../index.html#org.apache.predictionio.data.store.java.LJavaEventStore$@clone():Object" title="Permalink" target="_top">
@@ -196,7 +205,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
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@@ -213,7 +222,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -230,7 +239,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../../index.html#org.apache.predictionio.data.store.java.LJavaEventStore$@finalize():Unit" title="Permalink" target="_top">
@@ -253,7 +262,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">find</span><span class="params">(<span name="appName">appName: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityType">entityType: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>, <span name="entityId">entityId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>, <span name="channelName">channelName: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>, <span name="eventNames">eventNames: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="java.util.List">List</span>[<span class="extype" name="scala.Predef.String">String</span>]]</span>, <span name="targetEntityType">targetEntityType: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]]</span>, <span name="targetEntityId">targetEntityId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]]</span>, <span name="startTime">startTime: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>]</span>, <span name="untilTime">untilTime: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>]</span>, <span name="limit">limit: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="java.lang.Integer">Integer</span>]</span>, <span name="timeout">timeout: <span class="extype" name="scala.concurrent.duration.Duration">Duration</span></span>)</span><span class="result">: <span class="extype" name="java.util.List">List</span>[<a href="../../storage/Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a>]</span>
+        <span class="name">find</span><span class="params">(<span name="appName">appName: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityType">entityType: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>, <span name="entityId">entityId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>, <span name="channelName">channelName: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>, <span name="eventNames">eventNames: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="java.util.List">List</span>[<span class="extype" name="scala.Predef.String">String</span>]]</span>, <span name="targetEntityType">targetEntityType: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]]</span>, <span name="targetEntityId">targetEntityId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]]</span>, <span name="startTime">startTime: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>]</span>, <span name="untilTime">untilTime: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>]</span>, <span name="limit">limit: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="java.lang.Integer">Integer</span>]</span>, <span name="timeout">timeout: <span class="extype" name="scala.concurrent.duration.Duration">Duration</span></span>)</span><span class="result">: <span class="extype" name="java.util.List">List</span>[<a href="../../storage/Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a>]</span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../../index.html#org.apache.predictionio.data.store.java.LJavaEventStore$@find(appName:String,entityType:Option[String],entityId:Option[String],channelName:Option[String],eventNames:Option[java.util.List[String]],targetEntityType:Option[Option[String]],targetEntityId:Option[Option[String]],startTime:Option[org.joda.time.DateTime],untilTime:Option[org.joda.time.DateTime],limit:Option[Integer],timeout:scala.concurrent.duration.Duration):java.util.List[org.apache.predictionio.data.storage.Event]" title="Permalink" target="_top">
@@ -263,6 +272,25 @@
       <p class="shortcomment cmt">Reads events generically.</p><div class="fullcomment"><div class="comment cmt"><p>Reads events generically. If entityType or entityId is not specified, it
 results in table scan.
 </p></div><dl class="paramcmts block"><dt class="param">appName</dt><dd class="cmt"><p>return events of this app</p></dd><dt class="param">entityType</dt><dd class="cmt"><p>return events of this entityType</p><ul><li>None means no restriction on entityType</li><li>Some(x) means entityType should match x.</li></ul></dd><dt class="param">entityId</dt><dd class="cmt"><p>return events of this entityId</p><ul><li>None means no restriction on entityId</li><li>Some(x) means entityId should match x.</li></ul></dd><dt class="param">channelName</dt><dd class="cmt"><p>return events of this channel (default channel if it's None)</p></dd><dt class="param">eventNames</dt><dd class="cmt"><p>return events with any of these event names.</p></dd><dt class="param">targetEntityType</dt><dd class="cmt"><p>return events of this targetEntityType:</p><ul><li>None means no restriction on targetEntityType</li><li>Some(None) means no targetEntityType for this event</li><li>Some(Some(x)) means targetEntityType should match x.</li></ul></dd><dt class="param">targetEntityId</dt><dd class="cmt"><p>return events of this targetEntityId</p><ul><li>None means no restriction on targetEntityId</li><li>Some(None) means no targetEntityId for this event</li><li>Some(Some(x)) means targetEntityId should match x.</li></ul></dd><dt class="param">startTime</dt><dd class="cmt"><p>return events with eventTime &gt;= startTime</p></dd><dt class="param">untilTime</dt><dd class="cmt"><p>return events with eventTime &lt; untilTime</p></dd><dt class="param">limit</dt><dd class="cmt"><p>Limit number of events. Get all events if None or Some(-1)</p></dd><dt>returns</dt><dd class="cmt"><p>java.util.List[Event]</p></dd></dl></div>
+    </li><li name="org.apache.predictionio.data.store.java.LJavaEventStore#findAsync" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="findAsync(appName:String,entityType:Option[String],entityId:Option[String],channelName:Option[String],eventNames:Option[java.util.List[String]],targetEntityType:Option[Option[String]],targetEntityId:Option[Option[String]],startTime:Option[org.joda.time.DateTime],untilTime:Option[org.joda.time.DateTime],limit:Option[Integer],executorService:java.util.concurrent.ExecutorService):java.util.concurrent.CompletableFuture[java.util.List[org.apache.predictionio.data.storage.Event]]"></a>
+      <a id="findAsync(String,Option[String],Option[String],Option[String],Option[List[String]],Option[Option[String]],Option[Option[String]],Option[DateTime],Option[DateTime],Option[Integer],ExecutorService):CompletableFuture[List[Event]]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">findAsync</span><span class="params">(<span name="appName">appName: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityType">entityType: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>, <span name="entityId">entityId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>, <span name="channelName">channelName: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>, <span name="eventNames">eventNames: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="java.util.List">List</span>[<span class="extype" name="scala.Predef.String">String</span>]]</span>, <span name="targetEntityType">targetEntityType: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]]</span>, <span name="targetEntityId">targetEntityId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]]</span>, <span name="startTime">startTime: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>]</span>, <span name="untilTime">untilTime: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>]</span>, <span name="limit">limit: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="java.lang.Integer">Integer</span>]</span>, <span name="executorService">executorService: <span class="extype" name="java.util.concurrent.ExecutorService">ExecutorService</span></span>)</span><span class="result">: <span class="extype" name="java.util.concurrent.CompletableFuture">CompletableFuture</span>[<span class="extype" name="java.util.List">List</span>[<a href="../../storage/Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a>]]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../../index.html#org.apache.predictionio.data.store.java.LJavaEventStore$@findAsync(appName:String,entityType:Option[String],entityId:Option[String],channelName:Option[String],eventNames:Option[java.util.List[String]],targetEntityType:Option[Option[String]],targetEntityId:Option[Option[String]],startTime:Option[org.joda.time.DateTime],untilTime:Option[org.joda.time.DateTime],limit:Option[Integer],executorService:java.util.concurrent.ExecutorService):java.util.concurrent.CompletableFuture[java.util.List[org.apache.predictionio.data.storage.Event]]" title="Permalink" target="_top">
+        <img src="../../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">Reads events generically.</p><div class="fullcomment"><div class="comment cmt"><p>Reads events generically. If entityType or entityId is not specified, it
+results in table scan.
+</p></div><dl class="paramcmts block"><dt class="param">appName</dt><dd class="cmt"><p>return events of this app</p></dd><dt class="param">entityType</dt><dd class="cmt"><p>return events of this entityType</p><ul><li>None means no restriction on entityType</li><li>Some(x) means entityType should match x.</li></ul></dd><dt class="param">entityId</dt><dd class="cmt"><p>return events of this entityId</p><ul><li>None means no restriction on entityId</li><li>Some(x) means entityId should match x.</li></ul></dd><dt class="param">channelName</dt><dd class="cmt"><p>return events of this channel (default channel if it's None)</p></dd><dt class="param">eventNames</dt><dd class="cmt"><p>return events with any of these event names.</p></dd><dt class="param">targetEntityType</dt><dd class="cmt"><p>return events of this targetEntityType:</p><ul><li>None means no restriction on targetEntityType</li><li>Some(None) means no targetEntityType for this event</li><li>Some(Some(x)) means targetEntityType should match x.</li></ul></dd><dt class="param">targetEntityId</dt><dd class="cmt"><p>return events of this targetEntityId</p><ul><li>None means no restriction on targetEntityId</li><li>Some(None) means no targetEntityId for this event</li><li>Some(Some(x)) means targetEntityId should match x.</li></ul></dd><dt class="param">startTime</dt><dd class="cmt"><p>return events with eventTime &gt;= startTime</p></dd><dt class="param">untilTime</dt><dd class="cmt"><p>return events with eventTime &lt; untilTime</p></dd><dt class="param">limit</dt><dd class="cmt"><p>Limit number of events. Get all events if None or Some(-1)</p></dd><dt>returns</dt><dd class="cmt"><p>CompletableFuture[java.util.List[Event]]</p></dd></dl></div>
     </li><li name="org.apache.predictionio.data.store.java.LJavaEventStore#findByEntity" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="findByEntity(appName:String,entityType:String,entityId:String,channelName:Option[String],eventNames:Option[java.util.List[String]],targetEntityType:Option[Option[String]],targetEntityId:Option[Option[String]],startTime:Option[org.joda.time.DateTime],untilTime:Option[org.joda.time.DateTime],limit:Option[Integer],latest:Boolean,timeout:scala.concurrent.duration.Duration):java.util.List[org.apache.predictionio.data.storage.Event]"></a>
       <a id="findByEntity(String,String,String,Option[String],Option[List[String]],Option[Option[String]],Option[Option[String]],Option[DateTime],Option[DateTime],Option[Integer],Boolean,Duration):List[Event]"></a>
@@ -272,7 +300,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">findByEntity</span><span class="params">(<span name="appName">appName: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityType">entityType: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityId">entityId: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="channelName">channelName: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>, <span name="eventNames">eventNames: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="java.util.List">List</span>[<span class="extype" name="scala.Predef.String">String</span>]]</span>, <span name="targetEntityType">targetEntityType: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]]</span>, <span name="targetEntityId">targetEntityId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]]</span>, <span name="startTime">startTime: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>]</span>, <span name="untilTime">untilTime: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>]</span>, <span name="limit">limit: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="java.lang.Integer">Integer</span>]</span>, <span name="latest">latest: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>, <span name="timeout">timeout: <span class="extype" name="scala.concurrent.duration.Duration">Duration</span></span>)</span><span class="result">: <span class="extype" name="java.util.List">List</span>[<a href="../../storage/Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a>]</span>
+        <span class="name">findByEntity</span><span class="params">(<span name="appName">appName: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityType">entityType: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityId">entityId: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="channelName">channelName: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>, <span name="eventNames">eventNames: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="java.util.List">List</span>[<span class="extype" name="scala.Predef.String">String</span>]]</span>, <span name="targetEntityType">targetEntityType: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]]</span>, <span name="targetEntityId">targetEntityId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]]</span>, <span name="startTime">startTime: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>]</span>, <span name="untilTime">untilTime: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>]</span>, <span name="limit">limit: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="java.lang.Integer">Integer</span>]</span>, <span name="latest">latest: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>, <span name="timeout">timeout: <span class="extype" name="scala.concurrent.duration.Duration">Duration</span></span>)</span><span class="result">: <span class="extype" name="java.util.List">List</span>[<a href="../../storage/Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a>]</span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../../index.html#org.apache.predictionio.data.store.java.LJavaEventStore$@findByEntity(appName:String,entityType:String,entityId:String,channelName:Option[String],eventNames:Option[java.util.List[String]],targetEntityType:Option[Option[String]],targetEntityId:Option[Option[String]],startTime:Option[org.joda.time.DateTime],untilTime:Option[org.joda.time.DateTime],limit:Option[Integer],latest:Boolean,timeout:scala.concurrent.duration.Duration):java.util.List[org.apache.predictionio.data.storage.Event]" title="Permalink" target="_top">
@@ -282,6 +310,25 @@
       <p class="shortcomment cmt">Reads events of the specified entity.</p><div class="fullcomment"><div class="comment cmt"><p>Reads events of the specified entity. May use this in Algorithm's predict()
 or Serving logic to have fast event store access.
 </p></div><dl class="paramcmts block"><dt class="param">appName</dt><dd class="cmt"><p>return events of this app</p></dd><dt class="param">entityType</dt><dd class="cmt"><p>return events of this entityType</p></dd><dt class="param">entityId</dt><dd class="cmt"><p>return events of this entityId</p></dd><dt class="param">channelName</dt><dd class="cmt"><p>return events of this channel (default channel if it's None)</p></dd><dt class="param">eventNames</dt><dd class="cmt"><p>return events with any of these event names.</p></dd><dt class="param">targetEntityType</dt><dd class="cmt"><p>return events of this targetEntityType:</p><ul><li>None means no restriction on targetEntityType</li><li>Some(None) means no targetEntityType for this event</li><li>Some(Some(x)) means targetEntityType should match x.</li></ul></dd><dt class="param">targetEntityId</dt><dd class="cmt"><p>return events of this targetEntityId</p><ul><li>None means no restriction on targetEntityId</li><li>Some(None) means no targetEntityId for this event</li><li>Some(Some(x)) means targetEntityId should match x.</li></ul></dd><dt class="param">startTime</dt><dd class="cmt"><p>return events with eventTime &gt;= startTime</p></dd><dt class="param">untilTime</dt><dd class="cmt"><p>return events with eventTime &lt; untilTime</p></dd><dt class="param">limit</dt><dd class="cmt"><p>Limit number of events. Get all events if None or Some(-1)</p></dd><dt class="param">latest</dt><dd class="cmt"><p>Return latest event first</p></dd><dt>returns</dt><dd class="cmt"><p>java.util.List[Event]</p></dd></dl></div>
+    </li><li name="org.apache.predictionio.data.store.java.LJavaEventStore#findByEntityAsync" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="findByEntityAsync(appName:String,entityType:String,entityId:String,channelName:Option[String],eventNames:Option[java.util.List[String]],targetEntityType:Option[Option[String]],targetEntityId:Option[Option[String]],startTime:Option[org.joda.time.DateTime],untilTime:Option[org.joda.time.DateTime],limit:Option[Integer],latest:Boolean,executorService:java.util.concurrent.ExecutorService):java.util.concurrent.CompletableFuture[java.util.List[org.apache.predictionio.data.storage.Event]]"></a>
+      <a id="findByEntityAsync(String,String,String,Option[String],Option[List[String]],Option[Option[String]],Option[Option[String]],Option[DateTime],Option[DateTime],Option[Integer],Boolean,ExecutorService):CompletableFuture[List[Event]]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">findByEntityAsync</span><span class="params">(<span name="appName">appName: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityType">entityType: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityId">entityId: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="channelName">channelName: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>, <span name="eventNames">eventNames: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="java.util.List">List</span>[<span class="extype" name="scala.Predef.String">String</span>]]</span>, <span name="targetEntityType">targetEntityType: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]]</span>, <span name="targetEntityId">targetEntityId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]]</span>, <span name="startTime">startTime: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>]</span>, <span name="untilTime">untilTime: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>]</span>, <span name="limit">limit: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="java.lang.Integer">Integer</span>]</span>, <span name="latest">latest: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>, <span name="executorService">executorService: <span class="extype" name="java.util.concurrent.ExecutorService">ExecutorService</span></span>)</span><span class="result">: <span class="extype" name="java.util.concurrent.CompletableFuture">CompletableFuture</span>[<span class="extype" name="java.util.List">List</span>[<a href="../../storage/Event.html" class="extype" name="org.apache.predictionio.data.storage.Event">Event</a>]]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../../index.html#org.apache.predictionio.data.store.java.LJavaEventStore$@findByEntityAsync(appName:String,entityType:String,entityId:String,channelName:Option[String],eventNames:Option[java.util.List[String]],targetEntityType:Option[Option[String]],targetEntityId:Option[Option[String]],startTime:Option[org.joda.time.DateTime],untilTime:Option[org.joda.time.DateTime],limit:Option[Integer],latest:Boolean,executorService:java.util.concurrent.ExecutorService):java.util.concurrent.CompletableFuture[java.util.List[org.apache.predictionio.data.storage.Event]]" title="Permalink" target="_top">
+        <img src="../../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">Reads events of the specified entity.</p><div class="fullcomment"><div class="comment cmt"><p>Reads events of the specified entity. May use this in Algorithm's predict()
+or Serving logic to have fast event store access.
+</p></div><dl class="paramcmts block"><dt class="param">appName</dt><dd class="cmt"><p>return events of this app</p></dd><dt class="param">entityType</dt><dd class="cmt"><p>return events of this entityType</p></dd><dt class="param">entityId</dt><dd class="cmt"><p>return events of this entityId</p></dd><dt class="param">channelName</dt><dd class="cmt"><p>return events of this channel (default channel if it's None)</p></dd><dt class="param">eventNames</dt><dd class="cmt"><p>return events with any of these event names.</p></dd><dt class="param">targetEntityType</dt><dd class="cmt"><p>return events of this targetEntityType:</p><ul><li>None means no restriction on targetEntityType</li><li>Some(None) means no targetEntityType for this event</li><li>Some(Some(x)) means targetEntityType should match x.</li></ul></dd><dt class="param">targetEntityId</dt><dd class="cmt"><p>return events of this targetEntityId</p><ul><li>None means no restriction on targetEntityId</li><li>Some(None) means no targetEntityId for this event</li><li>Some(Some(x)) means targetEntityId should match x.</li></ul></dd><dt class="param">startTime</dt><dd class="cmt"><p>return events with eventTime &gt;= startTime</p></dd><dt class="param">untilTime</dt><dd class="cmt"><p>return events with eventTime &lt; untilTime</p></dd><dt class="param">limit</dt><dd class="cmt"><p>Limit number of events. Get all events if None or Some(-1)</p></dd><dt class="param">latest</dt><dd class="cmt"><p>Return latest event first</p></dd><dt>returns</dt><dd class="cmt"><p>CompletableFuture[java.util.List[Event]]</p></dd></dl></div>
     </li><li name="scala.AnyRef#getClass" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="getClass():Class[_]"></a>
       <a id="getClass():Class[_]"></a>
@@ -308,7 +355,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../../index.html#org.apache.predictionio.data.store.java.LJavaEventStore$@hashCode():Int" title="Permalink" target="_top">
@@ -325,7 +372,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../../index.html#org.apache.predictionio.data.store.java.LJavaEventStore$@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -342,7 +389,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../../index.html#org.apache.predictionio.data.store.java.LJavaEventStore$@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -359,7 +406,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../../index.html#org.apache.predictionio.data.store.java.LJavaEventStore$@notify():Unit" title="Permalink" target="_top">
@@ -376,7 +423,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../../index.html#org.apache.predictionio.data.store.java.LJavaEventStore$@notifyAll():Unit" title="Permalink" target="_top">
@@ -427,7 +474,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../../index.html#org.apache.predictionio.data.store.java.LJavaEventStore$@wait():Unit" title="Permalink" target="_top">
@@ -450,7 +497,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../../index.html#org.apache.predictionio.data.store.java.LJavaEventStore$@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -473,7 +520,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../../../index.html#org.apache.predictionio.data.store.java.LJavaEventStore$@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -497,9 +544,9 @@
 
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@@ -87,8 +87,18 @@
       </a>
     </span>
       <p class="shortcomment cmt">This Java-friendly object provides a set of operation to access Event Store
-without going through Spark's parallelization
-</p>
+without going through Spark's parallelization.</p><div class="fullcomment"><div class="comment cmt"><p>This Java-friendly object provides a set of operation to access Event Store
+without going through Spark's parallelization.</p><p>Note that blocking methods of this object uses
+<code>scala.concurrent.ExecutionContext.Implicits.global</code> internally.
+Since this is a thread pool which has a number of threads equal to available
+processors, parallelism is limited up to the number of processors.</p><p>If this limitation become bottleneck of resource usage, you can increase the
+number of threads by declaring following VM options before calling &quot;pio deploy&quot;:</p><p><pre>
+export JAVA_OPTS="$JAVA_OPTS \
+  -Dscala.concurrent.context.numThreads=1000 \
+  -Dscala.concurrent.context.maxThreads=1000"
+</pre></p><p>You can learn more about the global execution context in the Scala documentation:
+<a href="https://docs.scala-lang.org/overviews/core/futures.html#the-global-execution-context" target="_blank">https://docs.scala-lang.org/overviews/core/futures.html#the-global-execution-context</a>
+</p></div></div>
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diff --git a/api/current/org/apache/predictionio/data/store/package.html b/api/current/org/apache/predictionio/data/store/package.html
index cbd718c..7ded364 100644
--- a/api/current/org/apache/predictionio/data/store/package.html
+++ b/api/current/org/apache/predictionio/data/store/package.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>store - PredictionIO Scala API 0.13.0 - org.apache.predictionio.data.store</title>
-          <meta name="description" content="store - PredictionIO Scala API 0.13.0 - org.apache.predictionio.data.store" />
-          <meta name="keywords" content="store PredictionIO Scala API 0.13.0 org.apache.predictionio.data.store" />
+          <title>store - PredictionIO Scala API 0.14.0 - org.apache.predictionio.data.store</title>
+          <meta name="description" content="store - PredictionIO Scala API 0.14.0 - org.apache.predictionio.data.store" />
+          <meta name="keywords" content="store PredictionIO Scala API 0.14.0 org.apache.predictionio.data.store" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -51,7 +51,7 @@
 engine.
 </p></div><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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@@ -94,7 +94,7 @@
 
         <div id="values" class="values members">
               <h3>Value Members</h3>
-              <ol><li name="org.apache.predictionio.data.store.LEventStore" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+              <ol><li name="org.apache.predictionio.data.store.LEventStore" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="LEventStore"></a>
       <a id="LEventStore:LEventStore"></a>
       <h4 class="signature">
@@ -111,8 +111,18 @@
       </a>
     </span>
       <p class="shortcomment cmt">This object provides a set of operation to access Event Store
-without going through Spark's parallelization
-</p>
+without going through Spark's parallelization.</p><div class="fullcomment"><div class="comment cmt"><p>This object provides a set of operation to access Event Store
+without going through Spark's parallelization.</p><p>Note that blocking methods of this object uses
+<code>scala.concurrent.ExecutionContext.Implicits.global</code> internally.
+Since this is a thread pool which has a number of threads equal to available
+processors, parallelism is limited up to the number of processors.</p><p>If this limitation become bottleneck of resource usage, you can increase the
+number of threads by declaring following VM options before calling &quot;pio deploy&quot;:</p><p><pre>
+export JAVA_OPTS="$JAVA_OPTS \
+  -Dscala.concurrent.context.numThreads=1000 \
+  -Dscala.concurrent.context.maxThreads=1000"
+</pre></p><p>You can learn more about the global execution context in the Scala documentation:
+<a href="https://docs.scala-lang.org/overviews/core/futures.html#the-global-execution-context" target="_blank">https://docs.scala-lang.org/overviews/core/futures.html#the-global-execution-context</a>
+</p></div></div>
     </li><li name="org.apache.predictionio.data.store.PEventStore" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
       <a id="PEventStore"></a>
       <a id="PEventStore:PEventStore"></a>
@@ -176,9 +186,9 @@
 
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/data/store/python/PPythonEventStore$.html b/api/current/org/apache/predictionio/data/store/python/PPythonEventStore$.html
index d37550d..35661f4 100644
--- a/api/current/org/apache/predictionio/data/store/python/PPythonEventStore$.html
+++ b/api/current/org/apache/predictionio/data/store/python/PPythonEventStore$.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>PPythonEventStore - PredictionIO Scala API 0.13.0 - org.apache.predictionio.data.store.python.PPythonEventStore</title>
-          <meta name="description" content="PPythonEventStore - PredictionIO Scala API 0.13.0 - org.apache.predictionio.data.store.python.PPythonEventStore" />
-          <meta name="keywords" content="PPythonEventStore PredictionIO Scala API 0.13.0 org.apache.predictionio.data.store.python.PPythonEventStore" />
+          <title>PPythonEventStore - PredictionIO Scala API 0.14.0 - org.apache.predictionio.data.store.python.PPythonEventStore</title>
+          <meta name="description" content="PPythonEventStore - PredictionIO Scala API 0.14.0 - org.apache.predictionio.data.store.python.PPythonEventStore" />
+          <meta name="keywords" content="PPythonEventStore PredictionIO Scala API 0.14.0 org.apache.predictionio.data.store.python.PPythonEventStore" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -53,7 +53,7 @@
 with Spark's parallelization
 </p></div><div class="toggleContainer block">
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-          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
         </div></div>
         
 
@@ -105,7 +105,7 @@
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+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -122,7 +122,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -139,7 +139,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -156,7 +156,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">aggregateProperties</span><span class="params">(<span name="appName">appName: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityType">entityType: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="channelName">channelName: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="startTime">startTime: <span class="extype" name="java.sql.Timestamp">Timestamp</span></span>, <span name="untilTime">untilTime: <span class="extype" name="java.sql.Timestamp">Timestamp</span></span>, <span name="required">required: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Array" class="extype" target="_top">Array</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>)</span><span class="params">(<span name="spark">spark: <span class="extype" name="org.apache.spark.sql.SparkSession">SparkSession</span></span>)</span><span class="result">: <span class="extype" name="org.apache.spark.sql.DataFrame">DataFrame</span></span>
+        <span class="name">aggregateProperties</span><span class="params">(<span name="appName">appName: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="entityType">entityType: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="channelName">channelName: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="startTime">startTime: <span class="extype" name="java.sql.Timestamp">Timestamp</span></span>, <span name="untilTime">untilTime: <span class="extype" name="java.sql.Timestamp">Timestamp</span></span>, <span name="required">required: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Array" class="extype" target="_top">Array</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>)</span><span class="params">(<span name="spark">spark: <span class="extype" name="org.apache.spark.sql.SparkSession">SparkSession</span></span>)</span><span class="result">: <span class="extype" name="org.apache.spark.sql.DataFrame">DataFrame</span></span>
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@@ -193,7 +193,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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@@ -216,7 +216,7 @@
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       </span>
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-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -233,7 +233,7 @@
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+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -250,7 +250,7 @@
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+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -273,7 +273,7 @@
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@@ -309,7 +309,7 @@
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@@ -45,14 +45,14 @@
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       <span class="symbol">
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+        <span class="name">LabeledPoint</span><span class="params">(<span name="label">label: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="features">features: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Array" class="extype" target="_top">Array</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4>
       
           <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>Class that represents the features and labels of a data point.
 </p></div><dl class="paramcmts block"><dt class="param">label</dt><dd class="cmt"><p>Label of this data point</p></dd><dt class="param">features</dt><dd class="cmt"><p>Features of this data point</p></dd></dl><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Equals" class="extype" target="_top">Equals</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Equals" class="extype" target="_top">Equals</a>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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@@ -98,7 +98,7 @@
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-        <span class="name">LabeledPoint</span><span class="params">(<span name="label">label: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="features">features: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Array" class="extype" target="_top">Array</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>)</span>
+        <span class="name">LabeledPoint</span><span class="params">(<span name="label">label: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="features">features: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Array" class="extype" target="_top">Array</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>)</span>
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@@ -124,7 +124,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -141,7 +141,7 @@
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       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -158,7 +158,7 @@
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-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -192,7 +192,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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       </h4><span class="permalink">
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@@ -215,7 +215,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -232,7 +232,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="other">other: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="other">other: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -249,7 +249,7 @@
         <span class="kind">val</span>
       </span>
       <span class="symbol">
-        <span class="name">features</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Array" class="extype" target="_top">Array</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
+        <span class="name">features</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Array" class="extype" target="_top">Array</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
       </span>
       </h4><span class="permalink">
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@@ -266,7 +266,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -306,7 +306,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -323,7 +323,7 @@
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       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -374,7 +374,7 @@
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@@ -442,7 +442,7 @@
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+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -512,17 +512,17 @@
 
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a></h3>
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diff --git a/api/current/org/apache/predictionio/e2/engine/MarkovChain$.html b/api/current/org/apache/predictionio/e2/engine/MarkovChain$.html
index d86cd58..df98ef3 100644
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@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
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-          <meta name="description" content="MarkovChain - PredictionIO Scala API 0.13.0 - org.apache.predictionio.e2.engine.MarkovChain" />
-          <meta name="keywords" content="MarkovChain PredictionIO Scala API 0.13.0 org.apache.predictionio.e2.engine.MarkovChain" />
+          <title>MarkovChain - PredictionIO Scala API 0.14.0 - org.apache.predictionio.e2.engine.MarkovChain</title>
+          <meta name="description" content="MarkovChain - PredictionIO Scala API 0.14.0 - org.apache.predictionio.e2.engine.MarkovChain" />
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       <link href="../../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -51,7 +51,7 @@
       
           <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>Class for training a Markov Chain model</p></div><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
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@@ -103,7 +103,7 @@
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@@ -0,0 +1,734 @@
+<!DOCTYPE html >
+<html>
+        <head>
+          <title>PythonAlgorithm - PredictionIO Scala API 0.14.0 - org.apache.predictionio.e2.engine.PythonAlgorithm</title>
+          <meta name="description" content="PythonAlgorithm - PredictionIO Scala API 0.14.0 - org.apache.predictionio.e2.engine.PythonAlgorithm" />
+          <meta name="keywords" content="PythonAlgorithm PredictionIO Scala API 0.14.0 org.apache.predictionio.e2.engine.PythonAlgorithm" />
+          <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
+          
+      <link href="../../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
+      <link href="../../../../../lib/diagrams.css" media="screen" type="text/css" rel="stylesheet" id="diagrams-css" />
+      <script type="text/javascript" src="../../../../../lib/jquery.js" id="jquery-js"></script>
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+      <script type="text/javascript" src="../../../../../lib/template.js"></script>
+      <script type="text/javascript" src="../../../../../lib/tools.tooltip.js"></script>
+      
+      <script type="text/javascript">
+         if(top === self) {
+            var url = '../../../../../index.html';
+            var hash = 'org.apache.predictionio.e2.engine.PythonAlgorithm';
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+            var anchor_opt = '';
+            if (anchor.length >= 1)
+              anchor_opt = '@' + anchor.substring(1);
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+        <body class="type">
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+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
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+      <h4 id="signature" class="signature">
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+      <div id="template">
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+        <div id="constructors" class="members">
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+        <span class="name">PythonAlgorithm</span><span class="params">()</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@&lt;init&gt;():org.apache.predictionio.e2.engine.PythonAlgorithm" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li></ol>
+            </div>
+
+        
+
+        
+
+        <div id="values" class="values members">
+              <h3>Value Members</h3>
+              <ol><li name="scala.AnyRef#!=" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="!=(x$1:Any):Boolean"></a>
+      <a id="!=(Any):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@!=(x$1:Any):Boolean" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef###" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="##():Int"></a>
+      <a id="##():Int"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@##():Int" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#==" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="==(x$1:Any):Boolean"></a>
+      <a id="==(Any):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@==(x$1:Any):Boolean" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.Any#asInstanceOf" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="asInstanceOf[T0]:T0"></a>
+      <a id="asInstanceOf[T0]:T0"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">asInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <span class="extype" name="scala.Any.asInstanceOf.T0">T0</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@asInstanceOf[T0]:T0" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="org.apache.predictionio.controller.P2LAlgorithm#batchPredict" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="batchPredict(m:M,qs:org.apache.spark.rdd.RDD[(Long,Q)]):org.apache.spark.rdd.RDD[(Long,P)]"></a>
+      <a id="batchPredict(PipelineModel,RDD[(Long,Query)]):RDD[(Long,Row)]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">batchPredict</span><span class="params">(<span name="m">m: <span class="extype" name="org.apache.spark.ml.PipelineModel">PipelineModel</span></span>, <span name="qs">qs: <span class="extype" name="org.apache.spark.rdd.RDD">RDD</span>[(<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a>, <span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span>)]</span>)</span><span class="result">: <span class="extype" name="org.apache.spark.rdd.RDD">RDD</span>[(<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a>, <span class="extype" name="org.apache.spark.sql.Row">Row</span>)]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@batchPredict(m:M,qs:org.apache.spark.rdd.RDD[(Long,Q)]):org.apache.spark.rdd.RDD[(Long,P)]" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">This is a default implementation to perform batch prediction.</p><div class="fullcomment"><div class="comment cmt"><p>This is a default implementation to perform batch prediction. Override
+this method for a custom implementation.
+</p></div><dl class="paramcmts block"><dt class="param">m</dt><dd class="cmt"><p>A model</p></dd><dt class="param">qs</dt><dd class="cmt"><p>An RDD of index-query tuples. The index is used to keep track of
+          predicted results with corresponding queries.</p></dd><dt>returns</dt><dd class="cmt"><p>Batch of predicted results</p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="../../controller/P2LAlgorithm.html" class="extype" name="org.apache.predictionio.controller.P2LAlgorithm">P2LAlgorithm</a></dd></dl></div>
+    </li><li name="org.apache.predictionio.controller.P2LAlgorithm#batchPredictBase" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="batchPredictBase(sc:org.apache.spark.SparkContext,bm:Any,qs:org.apache.spark.rdd.RDD[(Long,Q)]):org.apache.spark.rdd.RDD[(Long,P)]"></a>
+      <a id="batchPredictBase(SparkContext,Any,RDD[(Long,Query)]):RDD[(Long,Row)]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">batchPredictBase</span><span class="params">(<span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>, <span name="bm">bm: <span class="extype" name="scala.Any">Any</span></span>, <span name="qs">qs: <span class="extype" name="org.apache.spark.rdd.RDD">RDD</span>[(<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a>, <span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span>)]</span>)</span><span class="result">: <span class="extype" name="org.apache.spark.rdd.RDD">RDD</span>[(<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a>, <span class="extype" name="org.apache.spark.sql.Row">Row</span>)]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@batchPredictBase(sc:org.apache.spark.SparkContext,bm:Any,qs:org.apache.spark.rdd.RDD[(Long,Q)]):org.apache.spark.rdd.RDD[(Long,P)]" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">:: DeveloperApi ::
+Engine developers should not use this directly.</p><div class="fullcomment"><div class="comment cmt"><p>:: DeveloperApi ::
+Engine developers should not use this directly. This is called by
+evaluation workflow to perform batch prediction.
+</p></div><dl class="paramcmts block"><dt class="param">sc</dt><dd class="cmt"><p>Spark context</p></dd><dt class="param">bm</dt><dd class="cmt"><p>Model</p></dd><dt class="param">qs</dt><dd class="cmt"><p>Batch of queries</p></dd><dt>returns</dt><dd class="cmt"><p>Batch of predicted results</p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="../../controller/P2LAlgorithm.html" class="extype" name="org.apache.predictionio.controller.P2LAlgorithm">P2LAlgorithm</a> → <a href="../../core/BaseAlgorithm.html" class="extype" name="org.apache.predictionio.core.BaseAlgorithm">BaseAlgorithm</a></dd></dl></div>
+    </li><li name="scala.AnyRef#clone" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="clone():Object"></a>
+      <a id="clone():AnyRef"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@clone():Object" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../../java$lang.html" class="extype" name="java.lang">java.lang</a>] </dd><dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.CloneNotSupportedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#eq" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="eq(x$1:AnyRef):Boolean"></a>
+      <a id="eq(AnyRef):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#equals" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="equals(x$1:Any):Boolean"></a>
+      <a id="equals(Any):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@equals(x$1:Any):Boolean" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#finalize" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="finalize():Unit"></a>
+      <a id="finalize():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@finalize():Unit" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../../java$lang.html" class="extype" name="java.lang">java.lang</a>] </dd><dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="symbol">classOf[java.lang.Throwable]</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#getClass" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="getClass():Class[_]"></a>
+      <a id="getClass():Class[_]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">getClass</span><span class="params">()</span><span class="result">: <span class="extype" name="java.lang.Class">Class</span>[_]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@getClass():Class[_]" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="org.apache.predictionio.core.BaseQuerySerializer#gsonTypeAdapterFactories" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="gsonTypeAdapterFactories:Seq[com.google.gson.TypeAdapterFactory]"></a>
+      <a id="gsonTypeAdapterFactories:Seq[TypeAdapterFactory]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">lazy val</span>
+      </span>
+      <span class="symbol">
+        <span class="name">gsonTypeAdapterFactories</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.collection.Seq" class="extype" target="_top">Seq</a>[<span class="extype" name="com.google.gson.TypeAdapterFactory">TypeAdapterFactory</span>]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@gsonTypeAdapterFactories:Seq[com.google.gson.TypeAdapterFactory]" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">:: DeveloperApi ::
+Serializer for Java query classes using Gson
+</p><div class="fullcomment"><div class="comment cmt"><p>:: DeveloperApi ::
+Serializer for Java query classes using Gson
+</p></div><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="../../core/BaseQuerySerializer.html" class="extype" name="org.apache.predictionio.core.BaseQuerySerializer">BaseQuerySerializer</a></dd></dl></div>
+    </li><li name="scala.AnyRef#hashCode" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="hashCode():Int"></a>
+      <a id="hashCode():Int"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@hashCode():Int" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.Any#isInstanceOf" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="isInstanceOf[T0]:Boolean"></a>
+      <a id="isInstanceOf[T0]:Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="org.apache.predictionio.controller.P2LAlgorithm#makePersistentModel" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="makePersistentModel(sc:org.apache.spark.SparkContext,modelId:String,algoParams:org.apache.predictionio.controller.Params,bm:Any):Any"></a>
+      <a id="makePersistentModel(SparkContext,String,Params,Any):Any"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">makePersistentModel</span><span class="params">(<span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>, <span name="modelId">modelId: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="algoParams">algoParams: <a href="../../controller/Params.html" class="extype" name="org.apache.predictionio.controller.Params">Params</a></span>, <span name="bm">bm: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <span class="extype" name="scala.Any">Any</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@makePersistentModel(sc:org.apache.spark.SparkContext,modelId:String,algoParams:org.apache.predictionio.controller.Params,bm:Any):Any" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">:: DeveloperApi ::
+Engine developers should not use this directly (read on to see how
+parallel-to-local algorithm models are persisted).</p><div class="fullcomment"><div class="comment cmt"><p>:: DeveloperApi ::
+Engine developers should not use this directly (read on to see how
+parallel-to-local algorithm models are persisted).</p><p>Parallel-to-local algorithms produce local models. By default, models will be
+serialized and stored automatically. Engine developers can override this behavior by
+mixing the <a href="../../controller/PersistentModel.html" class="extype" name="org.apache.predictionio.controller.PersistentModel">PersistentModel</a> trait into the model class, and
+PredictionIO will call <a href="../../controller/PersistentModel.html#save(id:String,params:AP,sc:org.apache.spark.SparkContext):Boolean" class="extmbr" name="org.apache.predictionio.controller.PersistentModel#save">PersistentModel.save</a> instead. If it returns
+true, a <a href="../../workflow/PersistentModelManifest.html" class="extype" name="org.apache.predictionio.workflow.PersistentModelManifest">org.apache.predictionio.workflow.PersistentModelManifest</a> will be
+returned so that during deployment, PredictionIO will use
+<a href="../../controller/PersistentModelLoader.html" class="extype" name="org.apache.predictionio.controller.PersistentModelLoader">PersistentModelLoader</a> to retrieve the model. Otherwise, Unit will be
+returned and the model will be re-trained on-the-fly.
+</p></div><dl class="paramcmts block"><dt class="param">sc</dt><dd class="cmt"><p>Spark context</p></dd><dt class="param">modelId</dt><dd class="cmt"><p>Model ID</p></dd><dt class="param">algoParams</dt><dd class="cmt"><p>Algorithm parameters that trained this model</p></dd><dt class="param">bm</dt><dd class="cmt"><p>Model</p></dd><dt>returns</dt><dd class="cmt"><p>The model itself for automatic persistence, an instance of
+        <a href="../../workflow/PersistentModelManifest.html" class="extype" name="org.apache.predictionio.workflow.PersistentModelManifest">org.apache.predictionio.workflow.PersistentModelManifest</a> for manual
+        persistence, or Unit for re-training on deployment</p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="../../controller/P2LAlgorithm.html" class="extype" name="org.apache.predictionio.controller.P2LAlgorithm">P2LAlgorithm</a> → <a href="../../core/BaseAlgorithm.html" class="extype" name="org.apache.predictionio.core.BaseAlgorithm">BaseAlgorithm</a></dd><dt>Annotations</dt><dd>
+                <span class="name">@DeveloperApi</span><span class="args">()</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#ne" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="ne(x$1:AnyRef):Boolean"></a>
+      <a id="ne(AnyRef):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#notify" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="notify():Unit"></a>
+      <a id="notify():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@notify():Unit" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#notifyAll" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="notifyAll():Unit"></a>
+      <a id="notifyAll():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@notifyAll():Unit" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="org.apache.predictionio.e2.engine.PythonAlgorithm#predict" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="predict(model:org.apache.spark.ml.PipelineModel,query:org.apache.predictionio.e2.engine.PythonEngine.Query):org.apache.spark.sql.Row"></a>
+      <a id="predict(PipelineModel,Query):Row"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">predict</span><span class="params">(<span name="model">model: <span class="extype" name="org.apache.spark.ml.PipelineModel">PipelineModel</span></span>, <span name="query">query: <span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span></span>)</span><span class="result">: <span class="extype" name="org.apache.spark.sql.Row">Row</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@predict(model:org.apache.spark.ml.PipelineModel,query:org.apache.predictionio.e2.engine.PythonEngine.Query):org.apache.spark.sql.Row" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">Implement this method to produce a prediction from a query and trained
+model.</p><div class="fullcomment"><div class="comment cmt"><p>Implement this method to produce a prediction from a query and trained
+model.
+</p></div><dl class="paramcmts block"><dt class="param">model</dt><dd class="cmt"><p>Trained model produced by <a href="#train(sc:org.apache.spark.SparkContext,data:org.apache.predictionio.controller.EmptyPreparedData):org.apache.spark.ml.PipelineModel" class="extmbr" name="org.apache.predictionio.e2.engine.PythonAlgorithm#train">train</a>.</p></dd><dt class="param">query</dt><dd class="cmt"><p>An input query.</p></dd><dt>returns</dt><dd class="cmt"><p>A prediction.</p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="" class="extype" name="org.apache.predictionio.e2.engine.PythonAlgorithm">PythonAlgorithm</a> → <a href="../../controller/P2LAlgorithm.html" class="extype" name="org.apache.predictionio.controller.P2LAlgorithm">P2LAlgorithm</a></dd></dl></div>
+    </li><li name="org.apache.predictionio.controller.P2LAlgorithm#predictBase" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="predictBase(bm:Any,q:Q):P"></a>
+      <a id="predictBase(Any,Query):Row"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">predictBase</span><span class="params">(<span name="bm">bm: <span class="extype" name="scala.Any">Any</span></span>, <span name="q">q: <span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span></span>)</span><span class="result">: <span class="extype" name="org.apache.spark.sql.Row">Row</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@predictBase(bm:Any,q:Q):P" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">:: DeveloperApi ::
+Engine developers should not use this directly.</p><div class="fullcomment"><div class="comment cmt"><p>:: DeveloperApi ::
+Engine developers should not use this directly. Called by serving to
+perform a single prediction.
+</p></div><dl class="paramcmts block"><dt class="param">bm</dt><dd class="cmt"><p>Model</p></dd><dt class="param">q</dt><dd class="cmt"><p>Query</p></dd><dt>returns</dt><dd class="cmt"><p>Predicted result</p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="../../controller/P2LAlgorithm.html" class="extype" name="org.apache.predictionio.controller.P2LAlgorithm">P2LAlgorithm</a> → <a href="../../core/BaseAlgorithm.html" class="extype" name="org.apache.predictionio.core.BaseAlgorithm">BaseAlgorithm</a></dd></dl></div>
+    </li><li name="org.apache.predictionio.core.BaseAlgorithm#queryClass" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="queryClass:Class[Q]"></a>
+      <a id="queryClass:Class[Query]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">queryClass</span><span class="result">: <span class="extype" name="scala.Predef.Class">Class</span>[<span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span>]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@queryClass:Class[Q]" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">:: DeveloperApi ::
+Obtains the type signature of query for this algorithm
+</p><div class="fullcomment"><div class="comment cmt"><p>:: DeveloperApi ::
+Obtains the type signature of query for this algorithm
+</p></div><dl class="paramcmts block"><dt>returns</dt><dd class="cmt"><p>Type signature of query</p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="../../core/BaseAlgorithm.html" class="extype" name="org.apache.predictionio.core.BaseAlgorithm">BaseAlgorithm</a></dd></dl></div>
+    </li><li name="org.apache.predictionio.core.BaseQuerySerializer#querySerializer" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="querySerializer:org.json4s.Formats"></a>
+      <a id="querySerializer:Formats"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">lazy val</span>
+      </span>
+      <span class="symbol">
+        <span class="name">querySerializer</span><span class="result">: <span class="extype" name="org.json4s.Formats">Formats</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@querySerializer:org.json4s.Formats" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">:: DeveloperApi ::
+Serializer for Scala query classes using
+<a href="../../controller/Utils$.html#json4sDefaultFormats:org.json4s.Formats" class="extmbr" name="org.apache.predictionio.controller.Utils#json4sDefaultFormats">org.apache.predictionio.controller.Utils.json4sDefaultFormats</a>
+</p><div class="fullcomment"><div class="comment cmt"><p>:: DeveloperApi ::
+Serializer for Scala query classes using
+<a href="../../controller/Utils$.html#json4sDefaultFormats:org.json4s.Formats" class="extmbr" name="org.apache.predictionio.controller.Utils#json4sDefaultFormats">org.apache.predictionio.controller.Utils.json4sDefaultFormats</a>
+</p></div><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="../../core/BaseQuerySerializer.html" class="extype" name="org.apache.predictionio.core.BaseQuerySerializer">BaseQuerySerializer</a></dd></dl></div>
+    </li><li name="scala.AnyRef#synchronized" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="synchronized[T0](x$1:=&gt;T0):T0"></a>
+      <a id="synchronized[T0](⇒T0):T0"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">synchronized</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="params">(<span name="arg0">arg0: ⇒ <span class="extype" name="java.lang.AnyRef.synchronized.T0">T0</span></span>)</span><span class="result">: <span class="extype" name="java.lang.AnyRef.synchronized.T0">T0</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@synchronized[T0](x$1:=&gt;T0):T0" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#toString" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="toString():String"></a>
+      <a id="toString():String"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">toString</span><span class="params">()</span><span class="result">: <span class="extype" name="java.lang.String">String</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@toString():String" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="org.apache.predictionio.e2.engine.PythonAlgorithm#train" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="train(sc:org.apache.spark.SparkContext,data:org.apache.predictionio.controller.EmptyPreparedData):org.apache.spark.ml.PipelineModel"></a>
+      <a id="train(SparkContext,EmptyPreparedData):PipelineModel"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">train</span><span class="params">(<span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>, <span name="data">data: <a href="../../controller/package.html#EmptyPreparedData=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyPreparedData">EmptyPreparedData</a></span>)</span><span class="result">: <span class="extype" name="org.apache.spark.ml.PipelineModel">PipelineModel</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@train(sc:org.apache.spark.SparkContext,data:org.apache.predictionio.controller.EmptyPreparedData):org.apache.spark.ml.PipelineModel" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">Implement this method to produce a model from prepared data.</p><div class="fullcomment"><div class="comment cmt"><p>Implement this method to produce a model from prepared data.
+</p></div><dl class="paramcmts block"><dt>returns</dt><dd class="cmt"><p>Trained model.</p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="" class="extype" name="org.apache.predictionio.e2.engine.PythonAlgorithm">PythonAlgorithm</a> → <a href="../../controller/P2LAlgorithm.html" class="extype" name="org.apache.predictionio.controller.P2LAlgorithm">P2LAlgorithm</a></dd></dl></div>
+    </li><li name="org.apache.predictionio.controller.P2LAlgorithm#trainBase" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="trainBase(sc:org.apache.spark.SparkContext,pd:PD):M"></a>
+      <a id="trainBase(SparkContext,EmptyPreparedData):PipelineModel"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">trainBase</span><span class="params">(<span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>, <span name="pd">pd: <a href="../../controller/package.html#EmptyPreparedData=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyPreparedData">EmptyPreparedData</a></span>)</span><span class="result">: <span class="extype" name="org.apache.spark.ml.PipelineModel">PipelineModel</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@trainBase(sc:org.apache.spark.SparkContext,pd:PD):M" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">:: DeveloperApi ::
+Engine developers should not use this directly.</p><div class="fullcomment"><div class="comment cmt"><p>:: DeveloperApi ::
+Engine developers should not use this directly. This is called by workflow
+to train a model.
+</p></div><dl class="paramcmts block"><dt class="param">sc</dt><dd class="cmt"><p>Spark context</p></dd><dt class="param">pd</dt><dd class="cmt"><p>Prepared data</p></dd><dt>returns</dt><dd class="cmt"><p>Trained model</p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="../../controller/P2LAlgorithm.html" class="extype" name="org.apache.predictionio.controller.P2LAlgorithm">P2LAlgorithm</a> → <a href="../../core/BaseAlgorithm.html" class="extype" name="org.apache.predictionio.core.BaseAlgorithm">BaseAlgorithm</a></dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait():Unit"></a>
+      <a id="wait():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@wait():Unit" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait(x$1:Long,x$2:Int):Unit"></a>
+      <a id="wait(Long,Int):Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait(x$1:Long):Unit"></a>
+      <a id="wait(Long):Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonAlgorithm@wait(x$1:Long):Unit" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li></ol>
+            </div>
+
+        
+
+        
+        </div>
+
+        <div id="inheritedMembers">
+        <div class="parent" name="org.apache.predictionio.controller.P2LAlgorithm">
+              <h3>Inherited from <a href="../../controller/P2LAlgorithm.html" class="extype" name="org.apache.predictionio.controller.P2LAlgorithm">P2LAlgorithm</a>[<a href="../../controller/package.html#EmptyPreparedData=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyPreparedData">EmptyPreparedData</a>, <span class="extype" name="org.apache.spark.ml.PipelineModel">PipelineModel</span>, <span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span>, <span class="extype" name="org.apache.spark.sql.Row">Row</span>]</h3>
+            </div><div class="parent" name="org.apache.predictionio.core.BaseAlgorithm">
+              <h3>Inherited from <a href="../../core/BaseAlgorithm.html" class="extype" name="org.apache.predictionio.core.BaseAlgorithm">BaseAlgorithm</a>[<a href="../../controller/package.html#EmptyPreparedData=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyPreparedData">EmptyPreparedData</a>, <span class="extype" name="org.apache.spark.ml.PipelineModel">PipelineModel</span>, <span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span>, <span class="extype" name="org.apache.spark.sql.Row">Row</span>]</h3>
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diff --git a/api/current/org/apache/predictionio/e2/engine/PythonDataSource.html b/api/current/org/apache/predictionio/e2/engine/PythonDataSource.html
new file mode 100644
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--- /dev/null
+++ b/api/current/org/apache/predictionio/e2/engine/PythonDataSource.html
@@ -0,0 +1,618 @@
+<!DOCTYPE html >
+<html>
+        <head>
+          <title>PythonDataSource - PredictionIO Scala API 0.14.0 - org.apache.predictionio.e2.engine.PythonDataSource</title>
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+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="scala.AnyRef#ne" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="ne(x$1:AnyRef):Boolean"></a>
+      <a id="ne(AnyRef):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonDataSource@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#notify" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="notify():Unit"></a>
+      <a id="notify():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonDataSource@notify():Unit" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#notifyAll" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="notifyAll():Unit"></a>
+      <a id="notifyAll():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonDataSource@notifyAll():Unit" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="org.apache.predictionio.controller.PDataSource#readEval" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="readEval(sc:org.apache.spark.SparkContext):Seq[(TD,EI,org.apache.spark.rdd.RDD[(Q,A)])]"></a>
+      <a id="readEval(SparkContext):Seq[(EmptyTrainingData,EmptyEvaluationInfo,RDD[(Query,EmptyActualResult)])]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">readEval</span><span class="params">(<span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>)</span><span class="result">: <span class="extype" name="scala.Seq">Seq</span>[(<a href="../../controller/package.html#EmptyTrainingData=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyTrainingData">EmptyTrainingData</a>, <a href="../../controller/package.html#EmptyEvaluationInfo=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyEvaluationInfo">EmptyEvaluationInfo</a>, <span class="extype" name="org.apache.spark.rdd.RDD">RDD</span>[(<span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span>, <a href="../../controller/package.html#EmptyActualResult=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyActualResult">EmptyActualResult</a>)])]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonDataSource@readEval(sc:org.apache.spark.SparkContext):Seq[(TD,EI,org.apache.spark.rdd.RDD[(Q,A)])]" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">To provide evaluation feature for your engine, your must override this
+method to return data for evaluation from a data source.</p><div class="fullcomment"><div class="comment cmt"><p>To provide evaluation feature for your engine, your must override this
+method to return data for evaluation from a data source. Returned data can
+optionally include a sequence of query and actual value pairs for
+evaluation purpose.</p><p>The default implementation returns an empty sequence as a stub, so that
+an engine can be compiled without implementing evaluation.
+</p></div><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="../../controller/PDataSource.html" class="extype" name="org.apache.predictionio.controller.PDataSource">PDataSource</a></dd></dl></div>
+    </li><li name="org.apache.predictionio.controller.PDataSource#readEvalBase" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="readEvalBase(sc:org.apache.spark.SparkContext):Seq[(TD,EI,org.apache.spark.rdd.RDD[(Q,A)])]"></a>
+      <a id="readEvalBase(SparkContext):Seq[(EmptyTrainingData,EmptyEvaluationInfo,RDD[(Query,EmptyActualResult)])]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">readEvalBase</span><span class="params">(<span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>)</span><span class="result">: <span class="extype" name="scala.Seq">Seq</span>[(<a href="../../controller/package.html#EmptyTrainingData=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyTrainingData">EmptyTrainingData</a>, <a href="../../controller/package.html#EmptyEvaluationInfo=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyEvaluationInfo">EmptyEvaluationInfo</a>, <span class="extype" name="org.apache.spark.rdd.RDD">RDD</span>[(<span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span>, <a href="../../controller/package.html#EmptyActualResult=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyActualResult">EmptyActualResult</a>)])]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonDataSource@readEvalBase(sc:org.apache.spark.SparkContext):Seq[(TD,EI,org.apache.spark.rdd.RDD[(Q,A)])]" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">:: DeveloperApi ::
+Engine developer should not use this directly.</p><div class="fullcomment"><div class="comment cmt"><p>:: DeveloperApi ::
+Engine developer should not use this directly. This is called by
+evaluation workflow to read training and validation data.
+</p></div><dl class="paramcmts block"><dt class="param">sc</dt><dd class="cmt"><p>Spark context</p></dd><dt>returns</dt><dd class="cmt"><p>Sets of training data, evaluation information, queries, and actual
+        results</p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="../../controller/PDataSource.html" class="extype" name="org.apache.predictionio.controller.PDataSource">PDataSource</a> → <a href="../../core/BaseDataSource.html" class="extype" name="org.apache.predictionio.core.BaseDataSource">BaseDataSource</a></dd></dl></div>
+    </li><li name="org.apache.predictionio.e2.engine.PythonDataSource#readTraining" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="readTraining(sc:org.apache.spark.SparkContext):org.apache.predictionio.controller.EmptyTrainingData"></a>
+      <a id="readTraining(SparkContext):EmptyTrainingData"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">readTraining</span><span class="params">(<span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>)</span><span class="result">: <a href="../../controller/package.html#EmptyTrainingData=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyTrainingData">EmptyTrainingData</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonDataSource@readTraining(sc:org.apache.spark.SparkContext):org.apache.predictionio.controller.EmptyTrainingData" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">Implement this method to only return training data from a data source</p><div class="fullcomment"><div class="comment cmt"><p>Implement this method to only return training data from a data source</p></div><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="" class="extype" name="org.apache.predictionio.e2.engine.PythonDataSource">PythonDataSource</a> → <a href="../../controller/PDataSource.html" class="extype" name="org.apache.predictionio.controller.PDataSource">PDataSource</a></dd></dl></div>
+    </li><li name="org.apache.predictionio.controller.PDataSource#readTrainingBase" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="readTrainingBase(sc:org.apache.spark.SparkContext):TD"></a>
+      <a id="readTrainingBase(SparkContext):EmptyTrainingData"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">readTrainingBase</span><span class="params">(<span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>)</span><span class="result">: <a href="../../controller/package.html#EmptyTrainingData=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyTrainingData">EmptyTrainingData</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonDataSource@readTrainingBase(sc:org.apache.spark.SparkContext):TD" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">:: DeveloperApi ::
+Engine developer should not use this directly.</p><div class="fullcomment"><div class="comment cmt"><p>:: DeveloperApi ::
+Engine developer should not use this directly. This is called by workflow
+to read training data.
+</p></div><dl class="paramcmts block"><dt class="param">sc</dt><dd class="cmt"><p>Spark context</p></dd><dt>returns</dt><dd class="cmt"><p>Training data</p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="../../controller/PDataSource.html" class="extype" name="org.apache.predictionio.controller.PDataSource">PDataSource</a> → <a href="../../core/BaseDataSource.html" class="extype" name="org.apache.predictionio.core.BaseDataSource">BaseDataSource</a></dd></dl></div>
+    </li><li name="scala.AnyRef#synchronized" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="synchronized[T0](x$1:=&gt;T0):T0"></a>
+      <a id="synchronized[T0](⇒T0):T0"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">synchronized</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="params">(<span name="arg0">arg0: ⇒ <span class="extype" name="java.lang.AnyRef.synchronized.T0">T0</span></span>)</span><span class="result">: <span class="extype" name="java.lang.AnyRef.synchronized.T0">T0</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonDataSource@synchronized[T0](x$1:=&gt;T0):T0" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#toString" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="toString():String"></a>
+      <a id="toString():String"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">toString</span><span class="params">()</span><span class="result">: <span class="extype" name="java.lang.String">String</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonDataSource@toString():String" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait():Unit"></a>
+      <a id="wait():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonDataSource@wait():Unit" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait(x$1:Long,x$2:Int):Unit"></a>
+      <a id="wait(Long,Int):Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonDataSource@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait(x$1:Long):Unit"></a>
+      <a id="wait(Long):Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonDataSource@wait(x$1:Long):Unit" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li></ol>
+            </div>
+
+        
+
+        <div id="values" class="values members">
+              <h3>Deprecated Value Members</h3>
+              <ol><li name="org.apache.predictionio.controller.PDataSource#read" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="read(sc:org.apache.spark.SparkContext):Seq[(TD,EI,org.apache.spark.rdd.RDD[(Q,A)])]"></a>
+      <a id="read(SparkContext):Seq[(EmptyTrainingData,EmptyEvaluationInfo,RDD[(Query,EmptyActualResult)])]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name deprecated" title="Deprecated: (Since version 0.9.0) Use readEval() instead.">read</span><span class="params">(<span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>)</span><span class="result">: <span class="extype" name="scala.Seq">Seq</span>[(<a href="../../controller/package.html#EmptyTrainingData=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyTrainingData">EmptyTrainingData</a>, <a href="../../controller/package.html#EmptyEvaluationInfo=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyEvaluationInfo">EmptyEvaluationInfo</a>, <span class="extype" name="org.apache.spark.rdd.RDD">RDD</span>[(<span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span>, <a href="../../controller/package.html#EmptyActualResult=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyActualResult">EmptyActualResult</a>)])]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonDataSource@read(sc:org.apache.spark.SparkContext):Seq[(TD,EI,org.apache.spark.rdd.RDD[(Q,A)])]" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="../../controller/PDataSource.html" class="extype" name="org.apache.predictionio.controller.PDataSource">PDataSource</a></dd><dt>Annotations</dt><dd>
+                <span class="name">@deprecated</span>
+              
+        </dd><dt>Deprecated</dt><dd class="cmt"><p><i>(Since version 0.9.0)</i> Use readEval() instead.</p></dd></dl></div>
+    </li></ol>
+            </div>
+        </div>
+
+        <div id="inheritedMembers">
+        <div class="parent" name="org.apache.predictionio.controller.PDataSource">
+              <h3>Inherited from <a href="../../controller/PDataSource.html" class="extype" name="org.apache.predictionio.controller.PDataSource">PDataSource</a>[<a href="../../controller/package.html#EmptyTrainingData=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyTrainingData">EmptyTrainingData</a>, <a href="../../controller/package.html#EmptyEvaluationInfo=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyEvaluationInfo">EmptyEvaluationInfo</a>, <span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span>, <a href="../../controller/package.html#EmptyActualResult=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyActualResult">EmptyActualResult</a>]</h3>
+            </div><div class="parent" name="org.apache.predictionio.core.BaseDataSource">
+              <h3>Inherited from <a href="../../core/BaseDataSource.html" class="extype" name="org.apache.predictionio.core.BaseDataSource">BaseDataSource</a>[<a href="../../controller/package.html#EmptyTrainingData=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyTrainingData">EmptyTrainingData</a>, <a href="../../controller/package.html#EmptyEvaluationInfo=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyEvaluationInfo">EmptyEvaluationInfo</a>, <span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span>, <a href="../../controller/package.html#EmptyActualResult=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyActualResult">EmptyActualResult</a>]</h3>
+            </div><div class="parent" name="org.apache.predictionio.core.AbstractDoer">
+              <h3>Inherited from <a href="../../core/AbstractDoer.html" class="extype" name="org.apache.predictionio.core.AbstractDoer">AbstractDoer</a></h3>
+            </div><div class="parent" name="scala.Serializable">
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
+            </div><div class="parent" name="java.io.Serializable">
+              <h3>Inherited from <span class="extype" name="java.io.Serializable">Serializable</span></h3>
+            </div><div class="parent" name="scala.AnyRef">
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
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diff --git a/api/current/org/apache/predictionio/e2/engine/PythonEngine$.html b/api/current/org/apache/predictionio/e2/engine/PythonEngine$.html
new file mode 100644
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+++ b/api/current/org/apache/predictionio/e2/engine/PythonEngine$.html
@@ -0,0 +1,535 @@
+<!DOCTYPE html >
+<html>
+        <head>
+          <title>PythonEngine - PredictionIO Scala API 0.14.0 - org.apache.predictionio.e2.engine.PythonEngine</title>
+          <meta name="description" content="PythonEngine - PredictionIO Scala API 0.14.0 - org.apache.predictionio.e2.engine.PythonEngine" />
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+        <h1>PythonEngine</h1><h3><span class="morelinks"><div>Related Doc:
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+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#==" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="==(x$1:Any):Boolean"></a>
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+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonEngine$@==(x$1:Any):Boolean" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="org.apache.predictionio.e2.engine.PythonEngine#apply" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
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+      <h4 class="signature">
+      <span class="modifier_kind">
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+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonEngine$@apply():org.apache.predictionio.controller.Engine[org.apache.predictionio.controller.EmptyTrainingData,org.apache.predictionio.controller.EmptyEvaluationInfo,org.apache.predictionio.controller.EmptyPreparedData,org.apache.predictionio.e2.engine.PythonEngine.Query,org.apache.spark.sql.Row,org.apache.predictionio.controller.EmptyActualResult]" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">Creates an instance of an <span class="extype" name="Engine">Engine</span>.</p><div class="fullcomment"><div class="comment cmt"><p>Creates an instance of an <span class="extype" name="Engine">Engine</span>.</p></div><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="" class="extype" name="org.apache.predictionio.e2.engine.PythonEngine">PythonEngine</a> → <a href="../../controller/EngineFactory.html" class="extype" name="org.apache.predictionio.controller.EngineFactory">EngineFactory</a></dd></dl></div>
+    </li><li name="scala.Any#asInstanceOf" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
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+      <h4 class="signature">
+      <span class="modifier_kind">
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+        <span class="kind">def</span>
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+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonEngine$@asInstanceOf[T0]:T0" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="scala.AnyRef#clone" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="clone():Object"></a>
+      <a id="clone():AnyRef"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
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+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonEngine$@clone():Object" title="Permalink" target="_top">
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+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.CloneNotSupportedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="org.apache.predictionio.controller.EngineFactory#engineParams" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="engineParams(key:String):org.apache.predictionio.controller.EngineParams"></a>
+      <a id="engineParams(String):EngineParams"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">engineParams</span><span class="params">(<span name="key">key: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result">: <a href="../../controller/EngineParams.html" class="extype" name="org.apache.predictionio.controller.EngineParams">EngineParams</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonEngine$@engineParams(key:String):org.apache.predictionio.controller.EngineParams" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">Override this method to programmatically return engine parameters.</p><div class="fullcomment"><div class="comment cmt"><p>Override this method to programmatically return engine parameters.</p></div><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="../../controller/EngineFactory.html" class="extype" name="org.apache.predictionio.controller.EngineFactory">EngineFactory</a></dd></dl></div>
+    </li><li name="scala.AnyRef#eq" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="eq(x$1:AnyRef):Boolean"></a>
+      <a id="eq(AnyRef):Boolean"></a>
+      <h4 class="signature">
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+        <span class="modifier">final </span>
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+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonEngine$@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#equals" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="equals(x$1:Any):Boolean"></a>
+      <a id="equals(Any):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#finalize" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="finalize():Unit"></a>
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+      <h4 class="signature">
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+                <span class="name">@throws</span><span class="args">(<span>
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+      <span class="symbol">classOf[java.lang.Throwable]</span>
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+      <h4 class="signature">
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+        <span class="modifier">final </span>
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#hashCode" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="hashCode():Int"></a>
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+      <h4 class="signature">
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+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonEngine$@hashCode():Int" title="Permalink" target="_top">
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.Any#isInstanceOf" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="isInstanceOf[T0]:Boolean"></a>
+      <a id="isInstanceOf[T0]:Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
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+      <span class="symbol">
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+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonEngine$@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="org.apache.predictionio.e2.engine.PythonEngine#models" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
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+        <span class="kind">def</span>
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+<!DOCTYPE html >
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+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
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+      <span class="symbol">
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+      </span>
+      </h4><span class="permalink">
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="scala.AnyRef#clone" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="clone():Object"></a>
+      <a id="clone():AnyRef"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonPreparator@clone():Object" title="Permalink" target="_top">
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+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.CloneNotSupportedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#eq" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="eq(x$1:AnyRef):Boolean"></a>
+      <a id="eq(AnyRef):Boolean"></a>
+      <h4 class="signature">
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+        <span class="kind">def</span>
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+      </span>
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+    </li><li name="scala.AnyRef#equals" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
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+      <a id="equals(Any):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
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+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#finalize" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="finalize():Unit"></a>
+      <a id="finalize():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
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+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="symbol">classOf[java.lang.Throwable]</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#getClass" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="getClass():Class[_]"></a>
+      <a id="getClass():Class[_]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">getClass</span><span class="params">()</span><span class="result">: <span class="extype" name="java.lang.Class">Class</span>[_]</span>
+      </span>
+      </h4><span class="permalink">
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+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#hashCode" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="hashCode():Int"></a>
+      <a id="hashCode():Int"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
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+      </span>
+      </h4><span class="permalink">
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+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.Any#isInstanceOf" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="isInstanceOf[T0]:Boolean"></a>
+      <a id="isInstanceOf[T0]:Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="scala.AnyRef#ne" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="ne(x$1:AnyRef):Boolean"></a>
+      <a id="ne(AnyRef):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
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+    </li><li name="scala.AnyRef#notify" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="notify():Unit"></a>
+      <a id="notify():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#notifyAll" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="notifyAll():Unit"></a>
+      <a id="notifyAll():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonPreparator@notifyAll():Unit" title="Permalink" target="_top">
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="org.apache.predictionio.e2.engine.PythonPreparator#prepare" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="prepare(sc:org.apache.spark.SparkContext,trainingData:org.apache.predictionio.controller.EmptyTrainingData):org.apache.predictionio.controller.EmptyPreparedData"></a>
+      <a id="prepare(SparkContext,EmptyTrainingData):EmptyPreparedData"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">prepare</span><span class="params">(<span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>, <span name="trainingData">trainingData: <a href="../../controller/package.html#EmptyTrainingData=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyTrainingData">EmptyTrainingData</a></span>)</span><span class="result">: <a href="../../controller/package.html#EmptyPreparedData=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyPreparedData">EmptyPreparedData</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonPreparator@prepare(sc:org.apache.spark.SparkContext,trainingData:org.apache.predictionio.controller.EmptyTrainingData):org.apache.predictionio.controller.EmptyPreparedData" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">Implement this method to produce prepared data that is ready for model
+training.</p><div class="fullcomment"><div class="comment cmt"><p>Implement this method to produce prepared data that is ready for model
+training.
+</p></div><dl class="paramcmts block"><dt class="param">sc</dt><dd class="cmt"><p>An Apache Spark context.</p></dd><dt class="param">trainingData</dt><dd class="cmt"><p>Training data to be prepared.</p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="" class="extype" name="org.apache.predictionio.e2.engine.PythonPreparator">PythonPreparator</a> → <a href="../../controller/PPreparator.html" class="extype" name="org.apache.predictionio.controller.PPreparator">PPreparator</a></dd></dl></div>
+    </li><li name="org.apache.predictionio.controller.PPreparator#prepareBase" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="prepareBase(sc:org.apache.spark.SparkContext,td:TD):PD"></a>
+      <a id="prepareBase(SparkContext,EmptyTrainingData):EmptyPreparedData"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">prepareBase</span><span class="params">(<span name="sc">sc: <span class="extype" name="org.apache.spark.SparkContext">SparkContext</span></span>, <span name="td">td: <a href="../../controller/package.html#EmptyTrainingData=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyTrainingData">EmptyTrainingData</a></span>)</span><span class="result">: <a href="../../controller/package.html#EmptyPreparedData=org.apache.predictionio.controller.package.SerializableClass" class="extmbr" name="org.apache.predictionio.controller.EmptyPreparedData">EmptyPreparedData</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonPreparator@prepareBase(sc:org.apache.spark.SparkContext,td:TD):PD" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">:: DeveloperApi ::
+Engine developers should not use this directly.</p><div class="fullcomment"><div class="comment cmt"><p>:: DeveloperApi ::
+Engine developers should not use this directly. This is called by training
+workflow to prepare data before handing it over to algorithm
+</p></div><dl class="paramcmts block"><dt class="param">sc</dt><dd class="cmt"><p>Spark context</p></dd><dt class="param">td</dt><dd class="cmt"><p>Training data</p></dd><dt>returns</dt><dd class="cmt"><p>Prepared data</p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="../../controller/PPreparator.html" class="extype" name="org.apache.predictionio.controller.PPreparator">PPreparator</a> → <a href="../../core/BasePreparator.html" class="extype" name="org.apache.predictionio.core.BasePreparator">BasePreparator</a></dd></dl></div>
+    </li><li name="scala.AnyRef#synchronized" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="synchronized[T0](x$1:=&gt;T0):T0"></a>
+      <a id="synchronized[T0](⇒T0):T0"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">synchronized</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="params">(<span name="arg0">arg0: ⇒ <span class="extype" name="java.lang.AnyRef.synchronized.T0">T0</span></span>)</span><span class="result">: <span class="extype" name="java.lang.AnyRef.synchronized.T0">T0</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonPreparator@synchronized[T0](x$1:=&gt;T0):T0" title="Permalink" target="_top">
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+    </li><li name="scala.AnyRef#toString" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="toString():String"></a>
+      <a id="toString():String"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">toString</span><span class="params">()</span><span class="result">: <span class="extype" name="java.lang.String">String</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonPreparator@toString():String" title="Permalink" target="_top">
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+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait():Unit"></a>
+      <a id="wait():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonPreparator@wait():Unit" title="Permalink" target="_top">
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait(x$1:Long,x$2:Int):Unit"></a>
+      <a id="wait(Long,Int):Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonPreparator@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait(x$1:Long):Unit"></a>
+      <a id="wait(Long):Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonPreparator@wait(x$1:Long):Unit" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li></ol>
+            </div>
+
+        
+
+        
+        </div>
+
+        <div id="inheritedMembers">
+        <div class="parent" name="org.apache.predictionio.controller.PPreparator">
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diff --git a/api/current/org/apache/predictionio/e2/engine/PythonServing$$Params.html b/api/current/org/apache/predictionio/e2/engine/PythonServing$$Params.html
new file mode 100644
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+++ b/api/current/org/apache/predictionio/e2/engine/PythonServing$$Params.html
@@ -0,0 +1,478 @@
+<!DOCTYPE html >
+<html>
+        <head>
+          <title>Params - PredictionIO Scala API 0.14.0 - org.apache.predictionio.e2.engine.PythonServing.Params</title>
+          <meta name="description" content="Params - PredictionIO Scala API 0.14.0 - org.apache.predictionio.e2.engine.PythonServing.Params" />
+          <meta name="keywords" content="Params PredictionIO Scala API 0.14.0 org.apache.predictionio.e2.engine.PythonServing.Params" />
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+        <h1>Params</h1><h3><span class="morelinks"><div>Related Doc:
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+        <div id="allMembers">
+        <div id="constructors" class="members">
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+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
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+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
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+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="scala.AnyRef#clone" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
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+                <span class="name">@throws</span><span class="args">(<span>
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+      <h4 class="signature">
+      <span class="modifier_kind">
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+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
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+    </span>
+      
+    </li><li name="scala.AnyRef#eq" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
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+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#finalize" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="finalize():Unit"></a>
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+      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../../java$lang.html" class="extype" name="java.lang">java.lang</a>] </dd><dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.Any#isInstanceOf" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="scala.AnyRef#ne" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
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+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
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+                <span class="name">@throws</span><span class="args">(<span>
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diff --git a/api/current/org/apache/predictionio/e2/engine/PythonServing.html b/api/current/org/apache/predictionio/e2/engine/PythonServing.html
new file mode 100644
index 0000000..42c16a7
--- /dev/null
+++ b/api/current/org/apache/predictionio/e2/engine/PythonServing.html
@@ -0,0 +1,598 @@
+<!DOCTYPE html >
+<html>
+        <head>
+          <title>PythonServing - PredictionIO Scala API 0.14.0 - org.apache.predictionio.e2.engine.PythonServing</title>
+          <meta name="description" content="PythonServing - PredictionIO Scala API 0.14.0 - org.apache.predictionio.e2.engine.PythonServing" />
+          <meta name="keywords" content="PythonServing PredictionIO Scala API 0.14.0 org.apache.predictionio.e2.engine.PythonServing" />
+          <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
+          
+      <link href="../../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
+      <link href="../../../../../lib/diagrams.css" media="screen" type="text/css" rel="stylesheet" id="diagrams-css" />
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+      <script type="text/javascript" src="../../../../../lib/tools.tooltip.js"></script>
+      
+      <script type="text/javascript">
+         if(top === self) {
+            var url = '../../../../../index.html';
+            var hash = 'org.apache.predictionio.e2.engine.PythonServing';
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+        </head>
+        <body class="type">
+      <div id="definition">
+        <a href="PythonServing$.html" title="See companion object"><img alt="Class/Object" src="../../../../../lib/class_to_object_big.png" /></a>
+        <p id="owner"><a href="../../../../package.html" class="extype" name="org">org</a>.<a href="../../../package.html" class="extype" name="org.apache">apache</a>.<a href="../../package.html" class="extype" name="org.apache.predictionio">predictionio</a>.<a href="../package.html" class="extype" name="org.apache.predictionio.e2">e2</a>.<a href="package.html" class="extype" name="org.apache.predictionio.e2.engine">engine</a></p>
+        <h1><a href="PythonServing$.html" title="See companion object">PythonServing</a></h1><h3><span class="morelinks"><div>
+            Related Docs:
+            <a href="PythonServing$.html" title="See companion object">object PythonServing</a>
+            | <a href="package.html" class="extype" name="org.apache.predictionio.e2.engine">package engine</a>
+          </div></span></h3><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
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+      </div>
+
+      <h4 id="signature" class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">class</span>
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+      
+          <div id="comment" class="fullcommenttop"><div class="toggleContainer block">
+          <span class="toggle">Linear Supertypes</span>
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+        <div id="order">
+              <span class="filtertype">Ordering</span>
+              <ol>
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+        <div id="ancestors">
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+        <div id="allMembers">
+        <div id="constructors" class="members">
+              <h3>Instance Constructors</h3>
+              <ol><li name="org.apache.predictionio.e2.engine.PythonServing#&lt;init&gt;" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="&lt;init&gt;(params:org.apache.predictionio.e2.engine.PythonServing.Params):org.apache.predictionio.e2.engine.PythonServing"></a>
+      <a id="&lt;init&gt;:PythonServing"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">new</span>
+      </span>
+      <span class="symbol">
+        <span class="name">PythonServing</span><span class="params">(<span name="params">params: <a href="PythonServing$$Params.html" class="extype" name="org.apache.predictionio.e2.engine.PythonServing.Params">Params</a></span>)</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@&lt;init&gt;(params:org.apache.predictionio.e2.engine.PythonServing.Params):org.apache.predictionio.e2.engine.PythonServing" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li></ol>
+            </div>
+
+        
+
+        
+
+        <div id="values" class="values members">
+              <h3>Value Members</h3>
+              <ol><li name="scala.AnyRef#!=" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="!=(x$1:Any):Boolean"></a>
+      <a id="!=(Any):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@!=(x$1:Any):Boolean" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef###" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="##():Int"></a>
+      <a id="##():Int"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@##():Int" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#==" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="==(x$1:Any):Boolean"></a>
+      <a id="==(Any):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@==(x$1:Any):Boolean" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.Any#asInstanceOf" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="asInstanceOf[T0]:T0"></a>
+      <a id="asInstanceOf[T0]:T0"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">asInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <span class="extype" name="scala.Any.asInstanceOf.T0">T0</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@asInstanceOf[T0]:T0" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="scala.AnyRef#clone" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="clone():Object"></a>
+      <a id="clone():AnyRef"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@clone():Object" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../../java$lang.html" class="extype" name="java.lang">java.lang</a>] </dd><dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.CloneNotSupportedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#eq" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="eq(x$1:AnyRef):Boolean"></a>
+      <a id="eq(AnyRef):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#equals" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="equals(x$1:Any):Boolean"></a>
+      <a id="equals(Any):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@equals(x$1:Any):Boolean" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#finalize" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="finalize():Unit"></a>
+      <a id="finalize():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@finalize():Unit" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../../java$lang.html" class="extype" name="java.lang">java.lang</a>] </dd><dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="symbol">classOf[java.lang.Throwable]</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#getClass" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="getClass():Class[_]"></a>
+      <a id="getClass():Class[_]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">getClass</span><span class="params">()</span><span class="result">: <span class="extype" name="java.lang.Class">Class</span>[_]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@getClass():Class[_]" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#hashCode" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="hashCode():Int"></a>
+      <a id="hashCode():Int"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@hashCode():Int" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.Any#isInstanceOf" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="isInstanceOf[T0]:Boolean"></a>
+      <a id="isInstanceOf[T0]:Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="scala.AnyRef#ne" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="ne(x$1:AnyRef):Boolean"></a>
+      <a id="ne(AnyRef):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#notify" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="notify():Unit"></a>
+      <a id="notify():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@notify():Unit" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#notifyAll" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="notifyAll():Unit"></a>
+      <a id="notifyAll():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@notifyAll():Unit" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="org.apache.predictionio.controller.LFirstServing#serve" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="serve(query:Q,predictions:Seq[P]):P"></a>
+      <a id="serve(Query,Seq[Row]):Row"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">serve</span><span class="params">(<span name="query">query: <span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span></span>, <span name="predictions">predictions: <span class="extype" name="scala.Seq">Seq</span>[<span class="extype" name="org.apache.spark.sql.Row">Row</span>]</span>)</span><span class="result">: <span class="extype" name="org.apache.spark.sql.Row">Row</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@serve(query:Q,predictions:Seq[P]):P" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">Returns the first algorithm's prediction.</p><div class="fullcomment"><div class="comment cmt"><p>Returns the first algorithm's prediction.</p></div><dl class="paramcmts block"><dt class="param">query</dt><dd class="cmt"><p>Original input query.</p></dd><dt class="param">predictions</dt><dd class="cmt"><p>A list of algorithms' predictions.</p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="../../controller/LFirstServing.html" class="extype" name="org.apache.predictionio.controller.LFirstServing">LFirstServing</a> → <a href="../../controller/LServing.html" class="extype" name="org.apache.predictionio.controller.LServing">LServing</a></dd></dl></div>
+    </li><li name="org.apache.predictionio.controller.LServing#serveBase" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="serveBase(q:Q,ps:Seq[P]):P"></a>
+      <a id="serveBase(Query,Seq[Row]):Row"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">serveBase</span><span class="params">(<span name="q">q: <span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span></span>, <span name="ps">ps: <span class="extype" name="scala.Seq">Seq</span>[<span class="extype" name="org.apache.spark.sql.Row">Row</span>]</span>)</span><span class="result">: <span class="extype" name="org.apache.spark.sql.Row">Row</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@serveBase(q:Q,ps:Seq[P]):P" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">:: DeveloperApi ::
+Engine developers should not use this directly.</p><div class="fullcomment"><div class="comment cmt"><p>:: DeveloperApi ::
+Engine developers should not use this directly. This is called by serving
+layer to combine multiple predicted results from multiple algorithms, and
+custom business logic before serving to the end user.
+</p></div><dl class="paramcmts block"><dt class="param">q</dt><dd class="cmt"><p>Query</p></dd><dt class="param">ps</dt><dd class="cmt"><p>List of predicted results</p></dd><dt>returns</dt><dd class="cmt"><p>A single predicted result</p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="../../controller/LServing.html" class="extype" name="org.apache.predictionio.controller.LServing">LServing</a> → <a href="../../core/BaseServing.html" class="extype" name="org.apache.predictionio.core.BaseServing">BaseServing</a></dd></dl></div>
+    </li><li name="org.apache.predictionio.e2.engine.PythonServing#supplement" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="supplement(q:org.apache.predictionio.e2.engine.PythonEngine.Query):org.apache.predictionio.e2.engine.PythonEngine.Query"></a>
+      <a id="supplement(Query):Query"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">supplement</span><span class="params">(<span name="q">q: <span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span></span>)</span><span class="result">: <span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@supplement(q:org.apache.predictionio.e2.engine.PythonEngine.Query):org.apache.predictionio.e2.engine.PythonEngine.Query" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">:: Experimental ::
+Implement this method to supplement the query before sending it to
+algorithms.</p><div class="fullcomment"><div class="comment cmt"><p>:: Experimental ::
+Implement this method to supplement the query before sending it to
+algorithms.
+</p></div><dl class="paramcmts block"><dt class="param">q</dt><dd class="cmt"><p>Query</p></dd><dt>returns</dt><dd class="cmt"><p>A supplemented Query</p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="" class="extype" name="org.apache.predictionio.e2.engine.PythonServing">PythonServing</a> → <a href="../../controller/LServing.html" class="extype" name="org.apache.predictionio.controller.LServing">LServing</a></dd></dl></div>
+    </li><li name="org.apache.predictionio.controller.LServing#supplementBase" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="supplementBase(q:Q):Q"></a>
+      <a id="supplementBase(Query):Query"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">supplementBase</span><span class="params">(<span name="q">q: <span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span></span>)</span><span class="result">: <span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@supplementBase(q:Q):Q" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">:: Experimental ::
+Engine developers should not use this directly.</p><div class="fullcomment"><div class="comment cmt"><p>:: Experimental ::
+Engine developers should not use this directly. This is called by serving
+layer to supplement process the query before sending it to algorithms.
+</p></div><dl class="paramcmts block"><dt class="param">q</dt><dd class="cmt"><p>Query</p></dd><dt>returns</dt><dd class="cmt"><p>A supplement Query</p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="../../controller/LServing.html" class="extype" name="org.apache.predictionio.controller.LServing">LServing</a> → <a href="../../core/BaseServing.html" class="extype" name="org.apache.predictionio.core.BaseServing">BaseServing</a></dd></dl></div>
+    </li><li name="scala.AnyRef#synchronized" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="synchronized[T0](x$1:=&gt;T0):T0"></a>
+      <a id="synchronized[T0](⇒T0):T0"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">synchronized</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="params">(<span name="arg0">arg0: ⇒ <span class="extype" name="java.lang.AnyRef.synchronized.T0">T0</span></span>)</span><span class="result">: <span class="extype" name="java.lang.AnyRef.synchronized.T0">T0</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@synchronized[T0](x$1:=&gt;T0):T0" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#toString" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="toString():String"></a>
+      <a id="toString():String"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">toString</span><span class="params">()</span><span class="result">: <span class="extype" name="java.lang.String">String</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@toString():String" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait():Unit"></a>
+      <a id="wait():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@wait():Unit" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait(x$1:Long,x$2:Int):Unit"></a>
+      <a id="wait(Long,Int):Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait(x$1:Long):Unit"></a>
+      <a id="wait(Long):Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../../index.html#org.apache.predictionio.e2.engine.PythonServing@wait(x$1:Long):Unit" title="Permalink" target="_top">
+        <img src="../../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li></ol>
+            </div>
+
+        
+
+        
+        </div>
+
+        <div id="inheritedMembers">
+        <div class="parent" name="org.apache.predictionio.controller.LFirstServing">
+              <h3>Inherited from <a href="../../controller/LFirstServing.html" class="extype" name="org.apache.predictionio.controller.LFirstServing">LFirstServing</a>[<span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span>, <span class="extype" name="org.apache.spark.sql.Row">Row</span>]</h3>
+            </div><div class="parent" name="org.apache.predictionio.controller.LServing">
+              <h3>Inherited from <a href="../../controller/LServing.html" class="extype" name="org.apache.predictionio.controller.LServing">LServing</a>[<span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span>, <span class="extype" name="org.apache.spark.sql.Row">Row</span>]</h3>
+            </div><div class="parent" name="org.apache.predictionio.core.BaseServing">
+              <h3>Inherited from <a href="../../core/BaseServing.html" class="extype" name="org.apache.predictionio.core.BaseServing">BaseServing</a>[<span class="extype" name="org.apache.predictionio.e2.engine.PythonEngine.Query">Query</span>, <span class="extype" name="org.apache.spark.sql.Row">Row</span>]</h3>
+            </div><div class="parent" name="org.apache.predictionio.core.AbstractDoer">
+              <h3>Inherited from <a href="../../core/AbstractDoer.html" class="extype" name="org.apache.predictionio.core.AbstractDoer">AbstractDoer</a></h3>
+            </div><div class="parent" name="scala.Serializable">
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
+            </div><div class="parent" name="java.io.Serializable">
+              <h3>Inherited from <span class="extype" name="java.io.Serializable">Serializable</span></h3>
+            </div><div class="parent" name="scala.AnyRef">
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
+            </div><div class="parent" name="scala.Any">
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
+            </div>
+        
+        </div>
+
+        <div id="groupedMembers">
+        <div class="group" name="Ungrouped">
+              <h3>Ungrouped</h3>
+              
+            </div>
+        </div>
+
+      </div>
+
+      <div id="tooltip"></div>
+
+      <div id="footer">  </div>
+
+
+    </body>
+      </html>
diff --git a/api/current/org/apache/predictionio/e2/engine/package.html b/api/current/org/apache/predictionio/e2/engine/package.html
index 80d7935..f6bec70 100644
--- a/api/current/org/apache/predictionio/e2/engine/package.html
+++ b/api/current/org/apache/predictionio/e2/engine/package.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>engine - PredictionIO Scala API 0.13.0 - org.apache.predictionio.e2.engine</title>
-          <meta name="description" content="engine - PredictionIO Scala API 0.13.0 - org.apache.predictionio.e2.engine" />
-          <meta name="keywords" content="engine PredictionIO Scala API 0.13.0 org.apache.predictionio.e2.engine" />
+          <title>engine - PredictionIO Scala API 0.14.0 - org.apache.predictionio.e2.engine</title>
+          <meta name="description" content="engine - PredictionIO Scala API 0.14.0 - org.apache.predictionio.e2.engine" />
+          <meta name="keywords" content="engine PredictionIO Scala API 0.14.0 org.apache.predictionio.e2.engine" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -49,7 +49,7 @@
       
           <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>Collection of engine libraries that have no dependency on PredictionIO</p></div><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
         </div></div>
         
 
@@ -97,7 +97,7 @@
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       </span>
       <span class="symbol">
-        <a href="BinaryVectorizer.html"><span class="name">BinaryVectorizer</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <a href="BinaryVectorizer.html"><span class="name">BinaryVectorizer</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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@@ -114,7 +114,7 @@
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       <span class="symbol">
-        <a href="CategoricalNaiveBayesModel.html"><span class="name">CategoricalNaiveBayesModel</span></a><span class="params">(<span name="priors">priors: <span class="extype" name="scala.Predef.Map">Map</span>[<span class="extype" name="scala.Predef.String">String</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Double" class="extype" target="_top">Double</a>]</span>, <span name="likelihoods">likelihoods: <span class="extype" name="scala.Predef.Map">Map</span>[<span class="extype" name="scala.Predef.String">String</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Array" class="extype" target="_top">Array</a>[<span class="extype" name="scala.Predef.Map">Map</span>[<span class="extype" name="scala.Predef.String">String</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Double" class="extype" target="_top">Double</a>]]]</span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a></span>
+        <a href="CategoricalNaiveBayesModel.html"><span class="name">CategoricalNaiveBayesModel</span></a><span class="params">(<span name="priors">priors: <span class="extype" name="scala.Predef.Map">Map</span>[<span class="extype" name="scala.Predef.String">String</span>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Double" class="extype" target="_top">Double</a>]</span>, <span name="likelihoods">likelihoods: <span class="extype" name="scala.Predef.Map">Map</span>[<span class="extype" name="scala.Predef.String">String</span>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Array" class="extype" target="_top">Array</a>[<span class="extype" name="scala.Predef.Map">Map</span>[<span class="extype" name="scala.Predef.String">String</span>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Double" class="extype" target="_top">Double</a>]]]</span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a></span>
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@@ -150,7 +150,7 @@
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+        <a href="MarkovChainModel.html"><span class="name">MarkovChainModel</span></a><span class="params">(<span name="transitionVectors">transitionVectors: <span class="extype" name="org.apache.spark.rdd.RDD">RDD</span>[(<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a>, <span class="extype" name="org.apache.spark.mllib.linalg.SparseVector">SparseVector</span>)]</span>, <span name="n">n: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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@@ -160,6 +160,74 @@
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-        <span class="name">BatchPredictConfig</span><span class="params">(<span name="inputFilePath">inputFilePath: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;batchpredict-input.json&quot;</span></span>, <span name="outputFilePath">outputFilePath: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;batchpredict-output.json&quot;</span></span>, <span name="queryPartitions">queryPartitions: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>, <span name="engineInstanceId">engineInstanceId: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineId">engineId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVersion">engineVersion: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVariant">engineVariant: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="env">env: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="verbose">verbose: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="debug">debug: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="jsonExtractor">jsonExtractor: <a href="JsonExtractorOption$.html#JsonExtractorOption=org.apache.predictionio.workflow.JsonExtractorOption.Value" class="extmbr" name="org.apache.predictionio.workflow.JsonExtractorOption.JsonExtractorOption">JsonExtractorOption.JsonExtractorOption</a> = <span class="symbol"><span class="name"><a href="JsonExtractorOption$.html">JsonExtractorOption.Both</a></span></span></span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <span class="name">BatchPredictConfig</span><span class="params">(<span name="inputFilePath">inputFilePath: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;batchpredict-input.json&quot;</span></span>, <span name="outputFilePath">outputFilePath: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;batchpredict-output.json&quot;</span></span>, <span name="queryPartitions">queryPartitions: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>, <span name="engineInstanceId">engineInstanceId: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineId">engineId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVersion">engineVersion: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVariant">engineVariant: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="env">env: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="verbose">verbose: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="debug">debug: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="jsonExtractor">jsonExtractor: <a href="JsonExtractorOption$.html#JsonExtractorOption=org.apache.predictionio.workflow.JsonExtractorOption.Value" class="extmbr" name="org.apache.predictionio.workflow.JsonExtractorOption.JsonExtractorOption">JsonExtractorOption.JsonExtractorOption</a> = <span class="symbol"><span class="name"><a href="JsonExtractorOption$.html">JsonExtractorOption.Both</a></span></span></span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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           <div id="comment" class="fullcommenttop"><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Equals" class="extype" target="_top">Equals</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Equals" class="extype" target="_top">Equals</a>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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@@ -97,7 +97,7 @@
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-        <span class="name">BatchPredictConfig</span><span class="params">(<span name="inputFilePath">inputFilePath: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;batchpredict-input.json&quot;</span></span>, <span name="outputFilePath">outputFilePath: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;batchpredict-output.json&quot;</span></span>, <span name="queryPartitions">queryPartitions: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>, <span name="engineInstanceId">engineInstanceId: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineId">engineId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVersion">engineVersion: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVariant">engineVariant: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="env">env: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="verbose">verbose: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="debug">debug: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="jsonExtractor">jsonExtractor: <a href="JsonExtractorOption$.html#JsonExtractorOption=org.apache.predictionio.workflow.JsonExtractorOption.Value" class="extmbr" name="org.apache.predictionio.workflow.JsonExtractorOption.JsonExtractorOption">JsonExtractorOption.JsonExtractorOption</a> = <span class="symbol"><span class="name"><a href="JsonExtractorOption$.html">JsonExtractorOption.Both</a></span></span></span>)</span>
+        <span class="name">BatchPredictConfig</span><span class="params">(<span name="inputFilePath">inputFilePath: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;batchpredict-input.json&quot;</span></span>, <span name="outputFilePath">outputFilePath: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;batchpredict-output.json&quot;</span></span>, <span name="queryPartitions">queryPartitions: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>, <span name="engineInstanceId">engineInstanceId: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineId">engineId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVersion">engineVersion: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVariant">engineVariant: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="env">env: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="verbose">verbose: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="debug">debug: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="jsonExtractor">jsonExtractor: <a href="JsonExtractorOption$.html#JsonExtractorOption=org.apache.predictionio.workflow.JsonExtractorOption.Value" class="extmbr" name="org.apache.predictionio.workflow.JsonExtractorOption.JsonExtractorOption">JsonExtractorOption.JsonExtractorOption</a> = <span class="symbol"><span class="name"><a href="JsonExtractorOption$.html">JsonExtractorOption.Both</a></span></span></span>)</span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.BatchPredictConfig@&lt;init&gt;(inputFilePath:String,outputFilePath:String,queryPartitions:Option[Int],engineInstanceId:String,engineId:Option[String],engineVersion:Option[String],engineVariant:String,env:Option[String],verbose:Boolean,debug:Boolean,jsonExtractor:org.apache.predictionio.workflow.JsonExtractorOption.JsonExtractorOption):org.apache.predictionio.workflow.BatchPredictConfig" title="Permalink" target="_top">
@@ -123,7 +123,7 @@
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+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -140,7 +140,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.BatchPredictConfig@##():Int" title="Permalink" target="_top">
@@ -157,7 +157,7 @@
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-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -191,7 +191,7 @@
         <span class="kind">def</span>
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+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.BatchPredictConfig@clone():Object" title="Permalink" target="_top">
@@ -214,7 +214,7 @@
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-        <span class="name">debug</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">debug</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.BatchPredictConfig@debug:Boolean" title="Permalink" target="_top">
@@ -231,7 +231,7 @@
         <span class="kind">val</span>
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+        <span class="name">engineId</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
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@@ -282,7 +282,7 @@
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       <a href="../../../../index.html#org.apache.predictionio.workflow.BatchPredictConfig@engineVersion:Option[String]" title="Permalink" target="_top">
@@ -299,7 +299,7 @@
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-        <span class="name">env</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
+        <span class="name">env</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.BatchPredictConfig@env:Option[String]" title="Permalink" target="_top">
@@ -316,7 +316,7 @@
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+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -333,7 +333,7 @@
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+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.BatchPredictConfig@finalize():Unit" title="Permalink" target="_top">
@@ -390,7 +390,7 @@
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+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -424,7 +424,7 @@
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@@ -441,7 +441,7 @@
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@@ -458,7 +458,7 @@
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+        <span class="name">WorkflowConfig</span><span class="params">(<span name="deployMode">deployMode: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="batch">batch: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineId">engineId: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineVersion">engineVersion: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineVariant">engineVariant: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineFactory">engineFactory: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineParamsKey">engineParamsKey: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="evaluationClass">evaluationClass: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineParamsGeneratorClass">engineParamsGeneratorClass: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="env">env: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="skipSanityCheck">skipSanityCheck: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="stopAfterRead">stopAfterRead: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="stopAfterPrepare">stopAfterPrepare: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="verbosity">verbosity: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a> = <span class="symbol">0</span></span>, <span name="verbose">verbose: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="debug">debug: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="logFile">logFile: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="jsonExtractor">jsonExtractor: <a href="JsonExtractorOption$.html#JsonExtractorOption=org.apache.predictionio.workflow.JsonExtractorOption.Value" class="extmbr" name="org.apache.predictionio.workflow.JsonExtractorOption.JsonExtractorOption">JsonExtractorOption.JsonExtractorOption</a> = <span class="symbol"><span class="name"><a href="JsonExtractorOption$.html">JsonExtractorOption.Both</a></span></span></span>)</span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.CreateWorkflow$$WorkflowConfig@&lt;init&gt;(deployMode:String,batch:String,engineId:String,engineVersion:String,engineVariant:String,engineFactory:String,engineParamsKey:String,evaluationClass:Option[String],engineParamsGeneratorClass:Option[String],env:Option[String],skipSanityCheck:Boolean,stopAfterRead:Boolean,stopAfterPrepare:Boolean,verbosity:Int,verbose:Boolean,debug:Boolean,logFile:Option[String],jsonExtractor:org.apache.predictionio.workflow.JsonExtractorOption.JsonExtractorOption):org.apache.predictionio.workflow.CreateWorkflow.WorkflowConfig" title="Permalink" target="_top">
@@ -123,7 +123,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.CreateWorkflow$$WorkflowConfig@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -140,7 +140,7 @@
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       </span>
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-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.CreateWorkflow$$WorkflowConfig@##():Int" title="Permalink" target="_top">
@@ -157,7 +157,7 @@
         <span class="kind">def</span>
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       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.CreateWorkflow$$WorkflowConfig@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -208,7 +208,7 @@
         <span class="kind">def</span>
       </span>
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-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.CreateWorkflow$$WorkflowConfig@clone():Object" title="Permalink" target="_top">
@@ -231,7 +231,7 @@
         <span class="kind">val</span>
       </span>
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-        <span class="name">debug</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">debug</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -299,7 +299,7 @@
         <span class="kind">val</span>
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       <span class="symbol">
-        <span class="name">engineParamsGeneratorClass</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
+        <span class="name">engineParamsGeneratorClass</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
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@@ -367,7 +367,7 @@
         <span class="kind">val</span>
       </span>
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-        <span class="name">env</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
+        <span class="name">env</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
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@@ -384,7 +384,7 @@
         <span class="kind">def</span>
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-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -401,7 +401,7 @@
         <span class="kind">val</span>
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-        <span class="name">evaluationClass</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
+        <span class="name">evaluationClass</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
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@@ -418,7 +418,7 @@
         <span class="kind">def</span>
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+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -458,7 +458,7 @@
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+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -492,7 +492,7 @@
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+        <span class="name">logFile</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
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@@ -509,7 +509,7 @@
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+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -526,7 +526,7 @@
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+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -543,7 +543,7 @@
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+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -560,7 +560,7 @@
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+        <span class="name">skipSanityCheck</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -577,7 +577,7 @@
         <span class="kind">val</span>
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+        <span class="name">stopAfterPrepare</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -594,7 +594,7 @@
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+        <span class="name">stopAfterRead</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -628,7 +628,7 @@
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+        <span class="name">verbose</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -645,7 +645,7 @@
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+        <span class="name">verbosity</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -662,7 +662,7 @@
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@@ -708,7 +708,7 @@
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index bed5481..ad57d4d 100644
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@@ -1,9 +1,9 @@
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-          <meta name="keywords" content="CreateWorkflow PredictionIO Scala API 0.13.0 org.apache.predictionio.workflow.CreateWorkflow" />
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+          <meta name="description" content="CreateWorkflow - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.CreateWorkflow" />
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-          <meta name="keywords" content="EngineLanguage PredictionIO Scala API 0.13.0 org.apache.predictionio.workflow.EngineLanguage" />
+          <title>EngineLanguage - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.EngineLanguage</title>
+          <meta name="description" content="EngineLanguage - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.EngineLanguage" />
+          <meta name="keywords" content="EngineLanguage PredictionIO Scala API 0.14.0 org.apache.predictionio.workflow.EngineLanguage" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -45,13 +45,13 @@
         <span class="kind">object</span>
       </span>
       <span class="symbol">
-        <span class="name">EngineLanguage</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Enumeration" class="extype" target="_top">Enumeration</a></span>
+        <span class="name">EngineLanguage</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Enumeration" class="extype" target="_top">Enumeration</a></span>
       </span>
       </h4>
       
           <div id="comment" class="fullcommenttop"><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Enumeration" class="extype" target="_top">Enumeration</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Enumeration" class="extype" target="_top">Enumeration</a>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
         </div></div>
         
 
@@ -99,7 +99,7 @@
         <span class="kind">class</span>
       </span>
       <span class="symbol">
-        <span class="name">Val</span><span class="result"> extends <span class="extype" name="scala.Enumeration.Value">Value</span> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <span class="name">Val</span><span class="result"> extends <span class="extype" name="scala.Enumeration.Value">Value</span> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@ValextendsEnumeration.this.ValuewithSerializable" title="Permalink" target="_top">
@@ -119,7 +119,7 @@
         <span class="kind">class</span>
       </span>
       <span class="symbol">
-        <span class="name">Value</span><span class="result"> extends <span class="extype" name="scala.Ordered">Ordered</span>[<span class="extype" name="scala.Enumeration.Value">Value</span>] with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <span class="name">Value</span><span class="result"> extends <span class="extype" name="scala.Ordered">Ordered</span>[<span class="extype" name="scala.Enumeration.Value">Value</span>] with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@ValueextendsOrdered[Enumeration.this.Value]withSerializable" title="Permalink" target="_top">
@@ -139,7 +139,7 @@
         <span class="kind">class</span>
       </span>
       <span class="symbol">
-        <span class="name">ValueSet</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.collection.AbstractSet" class="extype" target="_top">AbstractSet</a>[<span class="extype" name="scala.Enumeration.Value">Value</span>] with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.collection.immutable.SortedSet" class="extype" target="_top">SortedSet</a>[<span class="extype" name="scala.Enumeration.Value">Value</span>] with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.collection.SortedSetLike" class="extype" target="_top">SortedSetLike</a>[<span class="extype" name="scala.Enumeration.Value">Value</span>, <span class="extype" name="scala.Enumeration.ValueSet">ValueSet</span>] with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <span class="name">ValueSet</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.collection.AbstractSet" class="extype" target="_top">AbstractSet</a>[<span class="extype" name="scala.Enumeration.Value">Value</span>] with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.collection.immutable.SortedSet" class="extype" target="_top">SortedSet</a>[<span class="extype" name="scala.Enumeration.Value">Value</span>] with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.collection.SortedSetLike" class="extype" target="_top">SortedSetLike</a>[<span class="extype" name="scala.Enumeration.Value">Value</span>, <span class="extype" name="scala.Enumeration.ValueSet">ValueSet</span>] with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@ValueSetextendsAbstractSet[Enumeration.this.Value]withSortedSet[Enumeration.this.Value]withSortedSetLike[Enumeration.this.Value,Enumeration.this.ValueSet]withSerializable" title="Permalink" target="_top">
@@ -163,7 +163,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -180,7 +180,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@##():Int" title="Permalink" target="_top">
@@ -197,7 +197,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -248,7 +248,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">Value</span><span class="params">(<span name="i">i: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>, <span name="name">name: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result">: <a href="#ValueextendsOrdered[Enumeration.this.Value]withSerializable" class="extmbr" name="org.apache.predictionio.workflow.EngineLanguage.Value">Value</a></span>
+        <span class="name">Value</span><span class="params">(<span name="i">i: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>, <span name="name">name: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result">: <a href="#ValueextendsOrdered[Enumeration.this.Value]withSerializable" class="extmbr" name="org.apache.predictionio.workflow.EngineLanguage.Value">Value</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@Value(i:Int,name:String):Enumeration.this.Value" title="Permalink" target="_top">
@@ -282,7 +282,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">Value</span><span class="params">(<span name="i">i: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="#ValueextendsOrdered[Enumeration.this.Value]withSerializable" class="extmbr" name="org.apache.predictionio.workflow.EngineLanguage.Value">Value</a></span>
+        <span class="name">Value</span><span class="params">(<span name="i">i: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="#ValueextendsOrdered[Enumeration.this.Value]withSerializable" class="extmbr" name="org.apache.predictionio.workflow.EngineLanguage.Value">Value</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@Value(i:Int):Enumeration.this.Value" title="Permalink" target="_top">
@@ -316,7 +316,7 @@
         <span class="kind">object</span>
       </span>
       <span class="symbol">
-        <span class="name">ValueSet</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <span class="name">ValueSet</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@ValueSet" title="Permalink" target="_top">
@@ -333,7 +333,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">apply</span><span class="params">(<span name="x">x: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="#ValueextendsOrdered[Enumeration.this.Value]withSerializable" class="extmbr" name="org.apache.predictionio.workflow.EngineLanguage.Value">Value</a></span>
+        <span class="name">apply</span><span class="params">(<span name="x">x: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="#ValueextendsOrdered[Enumeration.this.Value]withSerializable" class="extmbr" name="org.apache.predictionio.workflow.EngineLanguage.Value">Value</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@apply(x:Int):Enumeration.this.Value" title="Permalink" target="_top">
@@ -367,7 +367,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@clone():Object" title="Permalink" target="_top">
@@ -390,7 +390,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -407,7 +407,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -424,7 +424,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@finalize():Unit" title="Permalink" target="_top">
@@ -464,7 +464,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@hashCode():Int" title="Permalink" target="_top">
@@ -481,7 +481,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -498,7 +498,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">maxId</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">maxId</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@maxId:Int" title="Permalink" target="_top">
@@ -515,7 +515,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -532,7 +532,7 @@
         <span class="kind">var</span>
       </span>
       <span class="symbol">
-        <span class="name">nextId</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">nextId</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@nextId:Int" title="Permalink" target="_top">
@@ -566,7 +566,7 @@
         <span class="kind">def</span>
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-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@notify():Unit" title="Permalink" target="_top">
@@ -583,7 +583,7 @@
         <span class="kind">def</span>
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-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@notifyAll():Unit" title="Permalink" target="_top">
@@ -600,7 +600,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">readResolve</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">readResolve</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@readResolve():AnyRef" title="Permalink" target="_top">
@@ -668,7 +668,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@wait():Unit" title="Permalink" target="_top">
@@ -691,7 +691,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -714,7 +714,7 @@
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       </span>
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-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineLanguage$@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -755,15 +755,15 @@
 
         <div id="inheritedMembers">
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Enumeration" class="extype" target="_top">Enumeration</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Enumeration" class="extype" target="_top">Enumeration</a></h3>
             </div><div class="parent" name="scala.Serializable">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
             </div><div class="parent" name="java.io.Serializable">
               <h3>Inherited from <span class="extype" name="java.io.Serializable">Serializable</span></h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/workflow/EngineServerJson4sSupport$.html b/api/current/org/apache/predictionio/workflow/EngineServerJson4sSupport$.html
index af71a30..e7d4c61 100644
--- a/api/current/org/apache/predictionio/workflow/EngineServerJson4sSupport$.html
+++ b/api/current/org/apache/predictionio/workflow/EngineServerJson4sSupport$.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>EngineServerJson4sSupport - PredictionIO Scala API 0.13.0 - org.apache.predictionio.workflow.EngineServerJson4sSupport</title>
-          <meta name="description" content="EngineServerJson4sSupport - PredictionIO Scala API 0.13.0 - org.apache.predictionio.workflow.EngineServerJson4sSupport" />
-          <meta name="keywords" content="EngineServerJson4sSupport PredictionIO Scala API 0.13.0 org.apache.predictionio.workflow.EngineServerJson4sSupport" />
+          <title>EngineServerJson4sSupport - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.EngineServerJson4sSupport</title>
+          <meta name="description" content="EngineServerJson4sSupport - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.EngineServerJson4sSupport" />
+          <meta name="keywords" content="EngineServerJson4sSupport PredictionIO Scala API 0.14.0 org.apache.predictionio.workflow.EngineServerJson4sSupport" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -45,13 +45,13 @@
         <span class="kind">object</span>
       </span>
       <span class="symbol">
-        <span class="name">EngineServerJson4sSupport</span><span class="result"> extends <span class="extype" name="spray.httpx.Json4sSupport">Json4sSupport</span></span>
+        <span class="name">EngineServerJson4sSupport</span>
       </span>
       </h4>
       
           <div id="comment" class="fullcommenttop"><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><span class="extype" name="spray.httpx.Json4sSupport">Json4sSupport</span>, <span class="extype" name="spray.httpx.BaseJson4sSupport">BaseJson4sSupport</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
         </div></div>
         
 
@@ -69,7 +69,7 @@
                 <span class="filtertype">Inherited<br />
                 </span>
                 <ol id="linearization">
-                  <li class="in" name="org.apache.predictionio.workflow.EngineServerJson4sSupport"><span>EngineServerJson4sSupport</span></li><li class="in" name="spray.httpx.Json4sSupport"><span>Json4sSupport</span></li><li class="in" name="spray.httpx.BaseJson4sSupport"><span>BaseJson4sSupport</span></li><li class="in" name="scala.AnyRef"><span>AnyRef</span></li><li class="in" name="scala.Any"><span>Any</span></li>
+                  <li class="in" name="org.apache.predictionio.workflow.EngineServerJson4sSupport"><span>EngineServerJson4sSupport</span></li><li class="in" name="scala.AnyRef"><span>AnyRef</span></li><li class="in" name="scala.Any"><span>Any</span></li>
                 </ol>
               </div><div id="ancestors">
             <span class="filtertype"></span>
@@ -103,7 +103,7 @@
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       </span>
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-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -120,7 +120,7 @@
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       </span>
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-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineServerJson4sSupport$@##():Int" title="Permalink" target="_top">
@@ -137,7 +137,7 @@
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       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -171,7 +171,7 @@
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       </span>
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-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineServerJson4sSupport$@clone():Object" title="Permalink" target="_top">
@@ -194,7 +194,7 @@
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+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -211,7 +211,7 @@
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-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -228,7 +228,7 @@
         <span class="kind">def</span>
       </span>
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-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineServerJson4sSupport$@finalize():Unit" title="Permalink" target="_top">
@@ -268,7 +268,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineServerJson4sSupport$@hashCode():Int" title="Permalink" target="_top">
@@ -285,7 +285,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineServerJson4sSupport$@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -293,7 +293,7 @@
       </a>
     </span>
       <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Any</dd></dl></div>
-    </li><li name="org.apache.predictionio.workflow.EngineServerJson4sSupport#json4sFormats" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+    </li><li name="org.apache.predictionio.workflow.EngineServerJson4sSupport#json4sFormats" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
       <a id="json4sFormats:org.json4s.Formats"></a>
       <a id="json4sFormats:Formats"></a>
       <h4 class="signature">
@@ -309,41 +309,7 @@
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       </a>
     </span>
-      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="" class="extype" name="org.apache.predictionio.workflow.EngineServerJson4sSupport">EngineServerJson4sSupport</a> → BaseJson4sSupport</dd></dl></div>
-    </li><li name="spray.httpx.BaseJson4sSupport#json4sMarshaller" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="json4sMarshaller[T&lt;:AnyRef]:spray.httpx.marshalling.Marshaller[T]"></a>
-      <a id="json4sMarshaller[T&lt;:AnyRef]:Marshaller[T]"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier">implicit </span>
-        <span class="kind">def</span>
-      </span>
-      <span class="symbol">
-        <span class="name">json4sMarshaller</span><span class="tparams">[<span name="T">T &lt;: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>]</span><span class="result">: <span class="extype" name="spray.httpx.marshalling.Marshaller">Marshaller</span>[<span class="extype" name="spray.httpx.BaseJson4sSupport.json4sMarshaller.T">T</span>]</span>
-      </span>
-      </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.workflow.EngineServerJson4sSupport$@json4sMarshaller[T&lt;:AnyRef]:spray.httpx.marshalling.Marshaller[T]" title="Permalink" target="_top">
-        <img src="../../../../lib/permalink.png" alt="Permalink" />
-      </a>
-    </span>
-      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>BaseJson4sSupport</dd></dl></div>
-    </li><li name="spray.httpx.BaseJson4sSupport#json4sUnmarshaller" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="json4sUnmarshaller[T](implicitevidence$1:Manifest[T]):spray.httpx.unmarshalling.Unmarshaller[T]"></a>
-      <a id="json4sUnmarshaller[T](Manifest[T]):Unmarshaller[T]"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier">implicit </span>
-        <span class="kind">def</span>
-      </span>
-      <span class="symbol">
-        <span class="name">json4sUnmarshaller</span><span class="tparams">[<span name="T">T</span>]</span><span class="params">(<span class="implicit">implicit </span><span name="arg0">arg0: <span class="extype" name="scala.Predef.Manifest">Manifest</span>[<span class="extype" name="spray.httpx.BaseJson4sSupport.json4sUnmarshaller.T">T</span>]</span>)</span><span class="result">: <span class="extype" name="spray.httpx.unmarshalling.Unmarshaller">Unmarshaller</span>[<span class="extype" name="spray.httpx.BaseJson4sSupport.json4sUnmarshaller.T">T</span>]</span>
-      </span>
-      </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.workflow.EngineServerJson4sSupport$@json4sUnmarshaller[T](implicitevidence$1:Manifest[T]):spray.httpx.unmarshalling.Unmarshaller[T]" title="Permalink" target="_top">
-        <img src="../../../../lib/permalink.png" alt="Permalink" />
-      </a>
-    </span>
-      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>BaseJson4sSupport</dd></dl></div>
+      
     </li><li name="scala.AnyRef#ne" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="ne(x$1:AnyRef):Boolean"></a>
       <a id="ne(AnyRef):Boolean"></a>
@@ -353,7 +319,7 @@
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       </span>
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+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineServerJson4sSupport$@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -370,7 +336,7 @@
         <span class="kind">def</span>
       </span>
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+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineServerJson4sSupport$@notify():Unit" title="Permalink" target="_top">
@@ -387,7 +353,7 @@
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+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineServerJson4sSupport$@notifyAll():Unit" title="Permalink" target="_top">
@@ -395,23 +361,23 @@
       </a>
     </span>
       <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
-    </li><li name="spray.httpx.Json4sSupport#serialization" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="serialization:org.json4s.native.Serialization.type"></a>
+    </li><li name="org.apache.predictionio.workflow.EngineServerJson4sSupport#serialization" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="serialization:org.json4s.jackson.Serialization.type"></a>
       <a id="serialization:Serialization.type"></a>
       <h4 class="signature">
       <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">def</span>
+        <span class="modifier">implicit </span>
+        <span class="kind">val</span>
       </span>
       <span class="symbol">
-        <span class="name">serialization</span><span class="result">: <span class="extype" name="org.json4s.native.Serialization">Serialization</span>.type</span>
+        <span class="name">serialization</span><span class="result">: <span class="extype" name="org.json4s.jackson.Serialization">Serialization</span>.type</span>
       </span>
       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.workflow.EngineServerJson4sSupport$@serialization:org.json4s.native.Serialization.type" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.EngineServerJson4sSupport$@serialization:org.json4s.jackson.Serialization.type" title="Permalink" target="_top">
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-      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../spray$httpx.html" class="extype" name="spray.httpx">spray.httpx</a>] </dd><dt>Definition Classes</dt><dd>Json4sSupport → BaseJson4sSupport</dd></dl></div>
+      
     </li><li name="scala.AnyRef#synchronized" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="synchronized[T0](x$1:=&gt;T0):T0"></a>
       <a id="synchronized[T0](⇒T0):T0"></a>
@@ -455,7 +421,7 @@
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+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -478,7 +444,7 @@
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+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -501,7 +467,7 @@
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+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineServerJson4sSupport$@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -524,14 +490,10 @@
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-              <h3>Inherited from <span class="extype" name="spray.httpx.Json4sSupport">Json4sSupport</span></h3>
-            </div><div class="parent" name="spray.httpx.BaseJson4sSupport">
-              <h3>Inherited from <span class="extype" name="spray.httpx.BaseJson4sSupport">BaseJson4sSupport</span></h3>
-            </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+        <div class="parent" name="scala.AnyRef">
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/workflow/EngineServerPlugin$.html b/api/current/org/apache/predictionio/workflow/EngineServerPlugin$.html
index 95f6fcd..a225437 100644
--- a/api/current/org/apache/predictionio/workflow/EngineServerPlugin$.html
+++ b/api/current/org/apache/predictionio/workflow/EngineServerPlugin$.html
@@ -1,9 +1,9 @@
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 <html>
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-          <meta name="description" content="EngineServerPlugin - PredictionIO Scala API 0.13.0 - org.apache.predictionio.workflow.EngineServerPlugin" />
-          <meta name="keywords" content="EngineServerPlugin PredictionIO Scala API 0.13.0 org.apache.predictionio.workflow.EngineServerPlugin" />
+          <title>EngineServerPlugin - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.EngineServerPlugin</title>
+          <meta name="description" content="EngineServerPlugin - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.EngineServerPlugin" />
+          <meta name="keywords" content="EngineServerPlugin PredictionIO Scala API 0.14.0 org.apache.predictionio.workflow.EngineServerPlugin" />
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       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -53,7 +53,7 @@
       
           <div id="comment" class="fullcommenttop"><div class="toggleContainer block">
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+          <div class="superTypes hiddenContent"><span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
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@@ -105,7 +105,7 @@
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+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -122,7 +122,7 @@
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+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineServerPlugin$@##():Int" title="Permalink" target="_top">
@@ -139,7 +139,7 @@
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+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -173,7 +173,7 @@
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+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineServerPlugin$@clone():Object" title="Permalink" target="_top">
@@ -196,7 +196,7 @@
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-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -213,7 +213,7 @@
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+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -230,7 +230,7 @@
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+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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@@ -287,7 +287,7 @@
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+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -338,7 +338,7 @@
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+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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@@ -423,7 +423,7 @@
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       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineServerPlugin$@wait():Unit" title="Permalink" target="_top">
@@ -446,7 +446,7 @@
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+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineServerPlugin$@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -469,7 +469,7 @@
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       </span>
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-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.EngineServerPlugin$@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -493,9 +493,9 @@
 
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/workflow/EngineServerPlugin.html b/api/current/org/apache/predictionio/workflow/EngineServerPlugin.html
index feb022e..2daa4b9 100644
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+++ b/api/current/org/apache/predictionio/workflow/EngineServerPlugin.html
@@ -1,9 +1,9 @@
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 <html>
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-          <meta name="description" content="EngineServerPlugin - PredictionIO Scala API 0.13.0 - org.apache.predictionio.workflow.EngineServerPlugin" />
-          <meta name="keywords" content="EngineServerPlugin PredictionIO Scala API 0.13.0 org.apache.predictionio.workflow.EngineServerPlugin" />
+          <title>EngineServerPlugin - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.EngineServerPlugin</title>
+          <meta name="description" content="EngineServerPlugin - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.EngineServerPlugin" />
+          <meta name="keywords" content="EngineServerPlugin PredictionIO Scala API 0.14.0 org.apache.predictionio.workflow.EngineServerPlugin" />
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       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -47,13 +47,13 @@
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       </span>
       <span class="symbol">
-        <span class="name">EngineServerPlugin</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">EngineServerPlugin</span><span class="result"> extends <span class="extype" name="scala.AnyRef">AnyRef</span></span>
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       </h4>
       
           <div id="comment" class="fullcommenttop"><div class="toggleContainer block">
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+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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index 48cb3ea..e6aba77 100644
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@@ -1,9 +1,9 @@
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-          <meta name="keywords" content="JsonExtractor PredictionIO Scala API 0.13.0 org.apache.predictionio.workflow.JsonExtractor" />
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@@ -51,7 +51,7 @@
       
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@@ -103,7 +103,7 @@
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@@ -120,7 +120,7 @@
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@@ -137,7 +137,7 @@
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@@ -171,7 +171,7 @@
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@@ -228,7 +228,7 @@
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@@ -319,7 +319,7 @@
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@@ -455,7 +455,7 @@
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                 <ol id="linearization">
-                  <li class="in" name="org.apache.predictionio.workflow.MasterActor"><span>MasterActor</span></li><li class="in" name="org.apache.predictionio.authentication.KeyAuthentication"><span>KeyAuthentication</span></li><li class="in" name="org.apache.predictionio.configuration.SSLConfiguration"><span>SSLConfiguration</span></li><li class="in" name="akka.actor.Actor"><span>Actor</span></li><li class="in" name="scala.AnyRef"><span>AnyRef</span></li><li class="in" name="scala.Any"><span>Any</span></li>
+                  <li class="in" name="org.apache.predictionio.workflow.MasterActor"><span>MasterActor</span></li><li class="in" name="org.apache.predictionio.configuration.SSLConfiguration"><span>SSLConfiguration</span></li><li class="in" name="org.apache.predictionio.authentication.KeyAuthentication"><span>KeyAuthentication</span></li><li class="in" name="akka.actor.Actor"><span>Actor</span></li><li class="in" name="scala.AnyRef"><span>AnyRef</span></li><li class="in" name="scala.Any"><span>Any</span></li>
                 </ol>
               </div><div id="ancestors">
             <span class="filtertype"></span>
@@ -119,7 +119,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">Receive</span><span class="result"> = <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.PartialFunction" class="extype" target="_top">PartialFunction</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a>]</span>
+        <span class="name">Receive</span><span class="result"> = <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.PartialFunction" class="extype" target="_top">PartialFunction</a>[<span class="extype" name="scala.Any">Any</span>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a>]</span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@Receive=akka.actor.Actor.Receive" title="Permalink" target="_top">
@@ -143,7 +143,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -160,7 +160,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@##():Int" title="Permalink" target="_top">
@@ -177,7 +177,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -211,14 +211,17 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">aroundPostRestart</span><span class="params">(<span name="reason">reason: <span class="extype" name="scala.Throwable">Throwable</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">aroundPostRestart</span><span class="params">(<span name="reason">reason: <span class="extype" name="scala.Throwable">Throwable</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@aroundPostRestart(reason:Throwable):Unit" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
-      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../akka.html" class="extype" name="akka">akka</a>] </dd><dt>Definition Classes</dt><dd>Actor</dd></dl></div>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../akka.html" class="extype" name="akka">akka</a>] </dd><dt>Definition Classes</dt><dd>Actor</dd><dt>Annotations</dt><dd>
+                <span class="name">@InternalApi</span><span class="args">()</span>
+              
+        </dd></dl></div>
     </li><li name="akka.actor.Actor#aroundPostStop" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="aroundPostStop():Unit"></a>
       <a id="aroundPostStop():Unit"></a>
@@ -228,14 +231,17 @@
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       </span>
       <span class="symbol">
-        <span class="name">aroundPostStop</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">aroundPostStop</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@aroundPostStop():Unit" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
-      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../akka.html" class="extype" name="akka">akka</a>] </dd><dt>Definition Classes</dt><dd>Actor</dd></dl></div>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../akka.html" class="extype" name="akka">akka</a>] </dd><dt>Definition Classes</dt><dd>Actor</dd><dt>Annotations</dt><dd>
+                <span class="name">@InternalApi</span><span class="args">()</span>
+              
+        </dd></dl></div>
     </li><li name="akka.actor.Actor#aroundPreRestart" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="aroundPreRestart(reason:&lt;?&gt;,message:&lt;?&gt;):Unit"></a>
       <a id="aroundPreRestart(Throwable,Option[Any]):Unit"></a>
@@ -245,14 +251,17 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">aroundPreRestart</span><span class="params">(<span name="reason">reason: <span class="extype" name="scala.Throwable">Throwable</span></span>, <span name="message">message: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a>]</span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">aroundPreRestart</span><span class="params">(<span name="reason">reason: <span class="extype" name="scala.Throwable">Throwable</span></span>, <span name="message">message: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Any">Any</span>]</span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@aroundPreRestart(reason:Throwable,message:Option[Any]):Unit" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
-      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../akka.html" class="extype" name="akka">akka</a>] </dd><dt>Definition Classes</dt><dd>Actor</dd></dl></div>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../akka.html" class="extype" name="akka">akka</a>] </dd><dt>Definition Classes</dt><dd>Actor</dd><dt>Annotations</dt><dd>
+                <span class="name">@InternalApi</span><span class="args">()</span>
+              
+        </dd></dl></div>
     </li><li name="akka.actor.Actor#aroundPreStart" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="aroundPreStart():Unit"></a>
       <a id="aroundPreStart():Unit"></a>
@@ -262,14 +271,17 @@
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-        <span class="name">aroundPreStart</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">aroundPreStart</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@aroundPreStart():Unit" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
-      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../akka.html" class="extype" name="akka">akka</a>] </dd><dt>Definition Classes</dt><dd>Actor</dd></dl></div>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../akka.html" class="extype" name="akka">akka</a>] </dd><dt>Definition Classes</dt><dd>Actor</dd><dt>Annotations</dt><dd>
+                <span class="name">@InternalApi</span><span class="args">()</span>
+              
+        </dd></dl></div>
     </li><li name="akka.actor.Actor#aroundReceive" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="aroundReceive(receive:&lt;?&gt;,msg:&lt;?&gt;):Unit"></a>
       <a id="aroundReceive(akka.actor.Actor.Receive,Any):Unit"></a>
@@ -279,14 +291,17 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">aroundReceive</span><span class="params">(<span name="receive">receive: <span class="extype" name="akka.actor.Actor.Receive">akka.actor.Actor.Receive</span></span>, <span name="msg">msg: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">aroundReceive</span><span class="params">(<span name="receive">receive: <span class="extype" name="akka.actor.Actor.Receive">akka.actor.Actor.Receive</span></span>, <span name="msg">msg: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@aroundReceive(receive:akka.actor.Actor.Receive,msg:Any):Unit" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
-      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../akka.html" class="extype" name="akka">akka</a>] </dd><dt>Definition Classes</dt><dd>Actor</dd></dl></div>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../akka.html" class="extype" name="akka">akka</a>] </dd><dt>Definition Classes</dt><dd>Actor</dd><dt>Annotations</dt><dd>
+                <span class="name">@InternalApi</span><span class="args">()</span>
+              
+        </dd></dl></div>
     </li><li name="scala.Any#asInstanceOf" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="asInstanceOf[T0]:T0"></a>
       <a id="asInstanceOf[T0]:T0"></a>
@@ -313,7 +328,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
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+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@clone():Object" title="Permalink" target="_top">
@@ -336,7 +351,7 @@
         <span class="kind">val</span>
       </span>
       <span class="symbol">
-        <span class="name">context</span><span class="result">: <a href="http://doc.akka.io/api/akka/2.4.17/index.html#akka.actor.ActorContext" class="extype" target="_top">ActorContext</a></span>
+        <span class="name">context</span><span class="result">: <a href="http://doc.akka.io/api/akka/2.5.17/index.html#akka.actor.ActorContext" class="extype" target="_top">ActorContext</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@context:akka.actor.ActorContext" title="Permalink" target="_top">
@@ -344,36 +359,36 @@
       </a>
     </span>
       <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Actor</dd></dl></div>
-    </li><li name="org.apache.predictionio.workflow.MasterActor#createServerActor" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
-      <a id="createServerActor(sc:org.apache.predictionio.workflow.ServerConfig,engineInstance:org.apache.predictionio.data.storage.EngineInstance,engineFactoryName:String):akka.actor.ActorRef"></a>
-      <a id="createServerActor(ServerConfig,EngineInstance,String):ActorRef"></a>
+    </li><li name="org.apache.predictionio.workflow.MasterActor#createServer" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="createServer(sc:org.apache.predictionio.workflow.ServerConfig,engineInstance:org.apache.predictionio.data.storage.EngineInstance,engineFactoryName:String):org.apache.predictionio.workflow.PredictionServer[_,_]"></a>
+      <a id="createServer(ServerConfig,EngineInstance,String):PredictionServer[_,_]"></a>
       <h4 class="signature">
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+        <span class="name">createServer</span><span class="params">(<span name="sc">sc: <a href="ServerConfig.html" class="extype" name="org.apache.predictionio.workflow.ServerConfig">ServerConfig</a></span>, <span name="engineInstance">engineInstance: <a href="../data/storage/EngineInstance.html" class="extype" name="org.apache.predictionio.data.storage.EngineInstance">EngineInstance</a></span>, <span name="engineFactoryName">engineFactoryName: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result">: <a href="PredictionServer.html" class="extype" name="org.apache.predictionio.workflow.PredictionServer">PredictionServer</a>[_, _]</span>
       </span>
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-      <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@createServerActor(sc:org.apache.predictionio.workflow.ServerConfig,engineInstance:org.apache.predictionio.data.storage.EngineInstance,engineFactoryName:String):akka.actor.ActorRef" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@createServer(sc:org.apache.predictionio.workflow.ServerConfig,engineInstance:org.apache.predictionio.data.storage.EngineInstance,engineFactoryName:String):org.apache.predictionio.workflow.PredictionServer[_,_]" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
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-    </li><li name="org.apache.predictionio.workflow.MasterActor#currentServerActor" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
-      <a id="currentServerActor:Option[akka.actor.ActorRef]"></a>
-      <a id="currentServerActor:Option[ActorRef]"></a>
+    </li><li name="org.apache.predictionio.workflow.MasterActor#currentServerBinding" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="currentServerBinding:Option[scala.concurrent.Future[akka.http.scaladsl.Http.ServerBinding]]"></a>
+      <a id="currentServerBinding:Option[Future[ServerBinding]]"></a>
       <h4 class="signature">
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         <span class="kind">var</span>
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+        <span class="name">currentServerBinding</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.concurrent.Future" class="extype" target="_top">Future</a>[<span class="extype" name="akka.http.scaladsl.Http.ServerBinding">ServerBinding</span>]]</span>
       </span>
       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@currentServerActor:Option[akka.actor.ActorRef]" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@currentServerBinding:Option[scala.concurrent.Future[akka.http.scaladsl.Http.ServerBinding]]" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
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     </span>
@@ -387,7 +402,7 @@
         <span class="kind">def</span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -404,7 +419,7 @@
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       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -421,7 +436,7 @@
         <span class="kind">def</span>
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       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@finalize():Unit" title="Permalink" target="_top">
@@ -461,7 +476,7 @@
         <span class="kind">def</span>
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-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@hashCode():Int" title="Permalink" target="_top">
@@ -469,6 +484,23 @@
       </a>
     </span>
       <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="org.apache.predictionio.workflow.MasterActor#https" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="https:Option[akka.http.scaladsl.HttpsConnectionContext]"></a>
+      <a id="https:Option[HttpsConnectionContext]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">val</span>
+      </span>
+      <span class="symbol">
+        <span class="name">https</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://doc.akka.io/api/akka-http/10.1.5/index.html#akka.http.scaladsl.HttpsConnectionContext" class="extype" target="_top">HttpsConnectionContext</a>]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@https:Option[akka.http.scaladsl.HttpsConnectionContext]" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
     </li><li name="scala.Any#isInstanceOf" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="isInstanceOf[T0]:Boolean"></a>
       <a id="isInstanceOf[T0]:Boolean"></a>
@@ -478,7 +510,7 @@
         <span class="kind">def</span>
       </span>
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-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -495,7 +527,7 @@
         <span class="kind">val</span>
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-        <span class="name">log</span><span class="result">: <a href="http://doc.akka.io/api/akka/2.4.17/index.html#akka.event.LoggingAdapter" class="extype" target="_top">LoggingAdapter</a></span>
+        <span class="name">log</span><span class="result">: <a href="http://doc.akka.io/api/akka/2.5.17/index.html#akka.event.LoggingAdapter" class="extype" target="_top">LoggingAdapter</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@log:akka.event.LoggingAdapter" title="Permalink" target="_top">
@@ -503,6 +535,23 @@
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     </span>
       
+    </li><li name="org.apache.predictionio.workflow.MasterActor#materializer" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="materializer:akka.stream.ActorMaterializer"></a>
+      <a id="materializer:ActorMaterializer"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">implicit </span>
+        <span class="kind">val</span>
+      </span>
+      <span class="symbol">
+        <span class="name">materializer</span><span class="result">: <span class="extype" name="akka.stream.ActorMaterializer">ActorMaterializer</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@materializer:akka.stream.ActorMaterializer" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
     </li><li name="scala.AnyRef#ne" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="ne(x$1:AnyRef):Boolean"></a>
       <a id="ne(AnyRef):Boolean"></a>
@@ -512,7 +561,7 @@
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-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -529,7 +578,7 @@
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-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@notify():Unit" title="Permalink" target="_top">
@@ -546,7 +595,7 @@
         <span class="kind">def</span>
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-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@notifyAll():Unit" title="Permalink" target="_top">
@@ -563,7 +612,7 @@
         <span class="kind">def</span>
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-        <span class="name">postRestart</span><span class="params">(<span name="reason">reason: <span class="extype" name="scala.Throwable">Throwable</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">postRestart</span><span class="params">(<span name="reason">reason: <span class="extype" name="scala.Throwable">Throwable</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@postRestart(reason:Throwable):Unit" title="Permalink" target="_top">
@@ -586,7 +635,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">postStop</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">postStop</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@postStop():Unit" title="Permalink" target="_top">
@@ -609,7 +658,7 @@
         <span class="kind">def</span>
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       <span class="symbol">
-        <span class="name">preRestart</span><span class="params">(<span name="reason">reason: <span class="extype" name="scala.Throwable">Throwable</span></span>, <span name="message">message: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a>]</span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">preRestart</span><span class="params">(<span name="reason">reason: <span class="extype" name="scala.Throwable">Throwable</span></span>, <span name="message">message: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Any">Any</span>]</span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@preRestart(reason:Throwable,message:Option[Any]):Unit" title="Permalink" target="_top">
@@ -632,7 +681,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">preStart</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">preStart</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@preStart():Unit" title="Permalink" target="_top">
@@ -689,7 +738,7 @@
         <span class="kind">var</span>
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       <span class="symbol">
-        <span class="name">retry</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">retry</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@retry:Int" title="Permalink" target="_top">
@@ -706,7 +755,7 @@
         <span class="kind">val</span>
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       <span class="symbol">
-        <span class="name">self</span><span class="result">: <a href="http://doc.akka.io/api/akka/2.4.17/index.html#akka.actor.ActorRef" class="extype" target="_top">ActorRef</a></span>
+        <span class="name">self</span><span class="result">: <a href="http://doc.akka.io/api/akka/2.5.17/index.html#akka.actor.ActorRef" class="extype" target="_top">ActorRef</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@self:akka.actor.ActorRef" title="Permalink" target="_top">
@@ -723,7 +772,7 @@
         <span class="kind">def</span>
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+        <span class="name">sender</span><span class="params">()</span><span class="result">: <a href="http://doc.akka.io/api/akka/2.5.17/index.html#akka.actor.ActorRef" class="extype" target="_top">ActorRef</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@sender():akka.actor.ActorRef" title="Permalink" target="_top">
@@ -748,29 +797,12 @@
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-    </li><li name="org.apache.predictionio.workflow.MasterActor#sprayHttpListener" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
-      <a id="sprayHttpListener:Option[akka.actor.ActorRef]"></a>
-      <a id="sprayHttpListener:Option[ActorRef]"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">var</span>
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-      <span class="symbol">
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-      </span>
-      </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@sprayHttpListener:Option[akka.actor.ActorRef]" title="Permalink" target="_top">
-        <img src="../../../../lib/permalink.png" alt="Permalink" />
-      </a>
-    </span>
-      
     </li><li name="org.apache.predictionio.configuration.SSLConfiguration#sslContext" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="sslContext:javax.net.ssl.SSLContext"></a>
       <a id="sslContext:SSLContext"></a>
       <h4 class="signature">
       <span class="modifier_kind">
-        <span class="modifier">implicit </span>
+        <span class="modifier"></span>
         <span class="kind">def</span>
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       <span class="symbol">
@@ -791,7 +823,7 @@
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+        <span class="name">sslEnforced</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@sslEnforced:Boolean" title="Permalink" target="_top">
@@ -799,23 +831,6 @@
       </a>
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-    </li><li name="org.apache.predictionio.configuration.SSLConfiguration#sslEngineProvider" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="sslEngineProvider:spray.io.ServerSSLEngineProvider"></a>
-      <a id="sslEngineProvider:ServerSSLEngineProvider"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier">implicit </span>
-        <span class="kind">def</span>
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-      <span class="symbol">
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-      </span>
-      </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@sslEngineProvider:spray.io.ServerSSLEngineProvider" title="Permalink" target="_top">
-        <img src="../../../../lib/permalink.png" alt="Permalink" />
-      </a>
-    </span>
-      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>SSLConfiguration</dd></dl></div>
     </li><li name="akka.actor.Actor#supervisorStrategy" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
       <a id="supervisorStrategy:akka.actor.SupervisorStrategy"></a>
       <a id="supervisorStrategy:SupervisorStrategy"></a>
@@ -825,7 +840,7 @@
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@@ -893,7 +908,7 @@
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@@ -910,7 +925,7 @@
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@@ -927,7 +942,7 @@
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@@ -950,7 +965,7 @@
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@@ -973,7 +988,7 @@
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@@ -988,18 +1003,18 @@
               
         </dd></dl></div>
     </li><li name="org.apache.predictionio.authentication.KeyAuthentication#withAccessKeyFromFile" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="withAccessKeyFromFile:spray.routing.RequestContext=&gt;scala.concurrent.Future[spray.routing.authentication.Authentication[spray.http.HttpRequest]]"></a>
-      <a id="withAccessKeyFromFile:(RequestContext)⇒Future[Authentication[HttpRequest]]"></a>
+      <a id="withAccessKeyFromFile:akka.http.scaladsl.server.RequestContext=&gt;scala.concurrent.Future[Either[akka.http.scaladsl.server.Rejection,akka.http.scaladsl.model.HttpRequest]]"></a>
+      <a id="withAccessKeyFromFile:(RequestContext)⇒Future[Either[Rejection,HttpRequest]]"></a>
       <h4 class="signature">
       <span class="modifier_kind">
         <span class="modifier"></span>
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">withAccessKeyFromFile</span><span class="result">: (<span class="extype" name="spray.routing.RequestContext">RequestContext</span>) ⇒ <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.concurrent.Future" class="extype" target="_top">Future</a>[<span class="extype" name="spray.routing.authentication.Authentication">Authentication</span>[<span class="extype" name="spray.http.HttpRequest">HttpRequest</span>]]</span>
+        <span class="name">withAccessKeyFromFile</span><span class="result">: (<a href="http://doc.akka.io/api/akka-http/10.1.5/index.html#akka.http.scaladsl.server.RequestContext" class="extype" target="_top">RequestContext</a>) ⇒ <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.concurrent.Future" class="extype" target="_top">Future</a>[<span class="extype" name="scala.Either">Either</span>[<a href="http://doc.akka.io/api/akka-http/10.1.5/index.html#akka.http.scaladsl.server.Rejection" class="extype" target="_top">Rejection</a>, <a href="http://doc.akka.io/api/akka-http/10.1.5/index.html#akka.http.scaladsl.model.HttpRequest" class="extype" target="_top">HttpRequest</a>]]</span>
       </span>
       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@withAccessKeyFromFile:spray.routing.RequestContext=&gt;scala.concurrent.Future[spray.routing.authentication.Authentication[spray.http.HttpRequest]]" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.MasterActor@withAccessKeyFromFile:akka.http.scaladsl.server.RequestContext=&gt;scala.concurrent.Future[Either[akka.http.scaladsl.server.Rejection,akka.http.scaladsl.model.HttpRequest]]" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
     </span>
@@ -1013,16 +1028,16 @@
         </div>
 
         <div id="inheritedMembers">
-        <div class="parent" name="org.apache.predictionio.authentication.KeyAuthentication">
-              <h3>Inherited from <span class="extype" name="org.apache.predictionio.authentication.KeyAuthentication">KeyAuthentication</span></h3>
-            </div><div class="parent" name="org.apache.predictionio.configuration.SSLConfiguration">
+        <div class="parent" name="org.apache.predictionio.configuration.SSLConfiguration">
               <h3>Inherited from <span class="extype" name="org.apache.predictionio.configuration.SSLConfiguration">SSLConfiguration</span></h3>
+            </div><div class="parent" name="org.apache.predictionio.authentication.KeyAuthentication">
+              <h3>Inherited from <span class="extype" name="org.apache.predictionio.authentication.KeyAuthentication">KeyAuthentication</span></h3>
             </div><div class="parent" name="akka.actor.Actor">
-              <h3>Inherited from <a href="http://doc.akka.io/api/akka/2.4.17/index.html#akka.actor.Actor" class="extype" target="_top">Actor</a></h3>
+              <h3>Inherited from <a href="http://doc.akka.io/api/akka/2.5.17/index.html#akka.actor.Actor" class="extype" target="_top">Actor</a></h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/workflow/NameParams.html b/api/current/org/apache/predictionio/workflow/NameParams.html
index d9ba9bb..4400be0 100644
--- a/api/current/org/apache/predictionio/workflow/NameParams.html
+++ b/api/current/org/apache/predictionio/workflow/NameParams.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>NameParams - PredictionIO Scala API 0.13.0 - org.apache.predictionio.workflow.NameParams</title>
-          <meta name="description" content="NameParams - PredictionIO Scala API 0.13.0 - org.apache.predictionio.workflow.NameParams" />
-          <meta name="keywords" content="NameParams PredictionIO Scala API 0.13.0 org.apache.predictionio.workflow.NameParams" />
+          <title>NameParams - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.NameParams</title>
+          <meta name="description" content="NameParams - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.NameParams" />
+          <meta name="keywords" content="NameParams PredictionIO Scala API 0.14.0 org.apache.predictionio.workflow.NameParams" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -45,13 +45,13 @@
         <span class="kind">case class</span>
       </span>
       <span class="symbol">
-        <span class="name">NameParams</span><span class="params">(<span name="name">name: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.json4s.JsonAST.JValue">JValue</span>]</span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <span class="name">NameParams</span><span class="params">(<span name="name">name: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.json4s.JsonAST.JValue">JValue</span>]</span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4>
       
           <div id="comment" class="fullcommenttop"><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Equals" class="extype" target="_top">Equals</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Equals" class="extype" target="_top">Equals</a>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
         </div></div>
         
 
@@ -97,7 +97,7 @@
         <span class="kind">new</span>
       </span>
       <span class="symbol">
-        <span class="name">NameParams</span><span class="params">(<span name="name">name: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.json4s.JsonAST.JValue">JValue</span>]</span>)</span>
+        <span class="name">NameParams</span><span class="params">(<span name="name">name: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.json4s.JsonAST.JValue">JValue</span>]</span>)</span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParams@&lt;init&gt;(name:String,params:Option[org.json4s.JsonAST.JValue]):org.apache.predictionio.workflow.NameParams" title="Permalink" target="_top">
@@ -123,7 +123,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParams@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -140,7 +140,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParams@##():Int" title="Permalink" target="_top">
@@ -157,7 +157,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParams@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -191,7 +191,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParams@clone():Object" title="Permalink" target="_top">
@@ -214,7 +214,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParams@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -231,7 +231,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParams@finalize():Unit" title="Permalink" target="_top">
@@ -271,7 +271,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParams@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -305,7 +305,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParams@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -322,7 +322,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParams@notify():Unit" title="Permalink" target="_top">
@@ -339,7 +339,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParams@notifyAll():Unit" title="Permalink" target="_top">
@@ -356,7 +356,7 @@
         <span class="kind">val</span>
       </span>
       <span class="symbol">
-        <span class="name">params</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.json4s.JsonAST.JValue">JValue</span>]</span>
+        <span class="name">params</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.json4s.JsonAST.JValue">JValue</span>]</span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParams@params:Option[org.json4s.JsonAST.JValue]" title="Permalink" target="_top">
@@ -390,7 +390,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParams@wait():Unit" title="Permalink" target="_top">
@@ -413,7 +413,7 @@
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-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParams@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -436,7 +436,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParams@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -460,17 +460,17 @@
 
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-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></h3>
             </div><div class="parent" name="java.io.Serializable">
               <h3>Inherited from <span class="extype" name="java.io.Serializable">Serializable</span></h3>
             </div><div class="parent" name="scala.Product">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a></h3>
             </div><div class="parent" name="scala.Equals">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Equals" class="extype" target="_top">Equals</a></h3>
+              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Equals" class="extype" target="_top">Equals</a></h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/workflow/NameParamsSerializer.html b/api/current/org/apache/predictionio/workflow/NameParamsSerializer.html
index a0acbe9..8502a6a 100644
--- a/api/current/org/apache/predictionio/workflow/NameParamsSerializer.html
+++ b/api/current/org/apache/predictionio/workflow/NameParamsSerializer.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>NameParamsSerializer - PredictionIO Scala API 0.13.0 - org.apache.predictionio.workflow.NameParamsSerializer</title>
-          <meta name="description" content="NameParamsSerializer - PredictionIO Scala API 0.13.0 - org.apache.predictionio.workflow.NameParamsSerializer" />
-          <meta name="keywords" content="NameParamsSerializer PredictionIO Scala API 0.13.0 org.apache.predictionio.workflow.NameParamsSerializer" />
+          <title>NameParamsSerializer - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.NameParamsSerializer</title>
+          <meta name="description" content="NameParamsSerializer - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.NameParamsSerializer" />
+          <meta name="keywords" content="NameParamsSerializer PredictionIO Scala API 0.14.0 org.apache.predictionio.workflow.NameParamsSerializer" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -51,7 +51,7 @@
       
           <div id="comment" class="fullcommenttop"><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><span class="extype" name="org.json4s.CustomSerializer">CustomSerializer</span>[<a href="NameParams.html" class="extype" name="org.apache.predictionio.workflow.NameParams">NameParams</a>], <span class="extype" name="org.json4s.Serializer">Serializer</span>[<a href="NameParams.html" class="extype" name="org.apache.predictionio.workflow.NameParams">NameParams</a>], <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><span class="extype" name="org.json4s.CustomSerializer">CustomSerializer</span>[<a href="NameParams.html" class="extype" name="org.apache.predictionio.workflow.NameParams">NameParams</a>], <span class="extype" name="org.json4s.Serializer">Serializer</span>[<a href="NameParams.html" class="extype" name="org.apache.predictionio.workflow.NameParams">NameParams</a>], <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
         </div></div>
         
 
@@ -123,7 +123,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParamsSerializer@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -140,7 +140,7 @@
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       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParamsSerializer@##():Int" title="Permalink" target="_top">
@@ -157,7 +157,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParamsSerializer@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -208,7 +208,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParamsSerializer@clone():Object" title="Permalink" target="_top">
@@ -231,7 +231,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">deserialize</span><span class="params">(<span class="implicit">implicit </span><span name="format">format: <span class="extype" name="org.json4s.Formats">Formats</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.PartialFunction" class="extype" target="_top">PartialFunction</a>[(<span class="extype" name="org.json4s.TypeInfo">TypeInfo</span>, <span class="extype" name="org.json4s.JValue">JValue</span>), <a href="NameParams.html" class="extype" name="org.apache.predictionio.workflow.NameParams">NameParams</a>]</span>
+        <span class="name">deserialize</span><span class="params">(<span class="implicit">implicit </span><span name="format">format: <span class="extype" name="org.json4s.Formats">Formats</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.PartialFunction" class="extype" target="_top">PartialFunction</a>[(<span class="extype" name="org.json4s.TypeInfo">TypeInfo</span>, <span class="extype" name="org.json4s.JValue">JValue</span>), <a href="NameParams.html" class="extype" name="org.apache.predictionio.workflow.NameParams">NameParams</a>]</span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParamsSerializer@deserialize(implicitformat:org.json4s.Formats):PartialFunction[(org.json4s.TypeInfo,org.json4s.JValue),A]" title="Permalink" target="_top">
@@ -248,7 +248,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParamsSerializer@eq(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -265,7 +265,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">equals</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParamsSerializer@equals(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -282,7 +282,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParamsSerializer@finalize():Unit" title="Permalink" target="_top">
@@ -322,7 +322,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">hashCode</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParamsSerializer@hashCode():Int" title="Permalink" target="_top">
@@ -339,7 +339,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParamsSerializer@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -356,7 +356,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParamsSerializer@ne(x$1:AnyRef):Boolean" title="Permalink" target="_top">
@@ -373,7 +373,7 @@
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       </span>
       <span class="symbol">
-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParamsSerializer@notify():Unit" title="Permalink" target="_top">
@@ -390,7 +390,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notifyAll</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParamsSerializer@notifyAll():Unit" title="Permalink" target="_top">
@@ -407,7 +407,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">serialize</span><span class="params">(<span class="implicit">implicit </span><span name="format">format: <span class="extype" name="org.json4s.Formats">Formats</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.PartialFunction" class="extype" target="_top">PartialFunction</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a>, <span class="extype" name="org.json4s.JValue">JValue</span>]</span>
+        <span class="name">serialize</span><span class="params">(<span class="implicit">implicit </span><span name="format">format: <span class="extype" name="org.json4s.Formats">Formats</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.PartialFunction" class="extype" target="_top">PartialFunction</a>[<span class="extype" name="scala.Any">Any</span>, <span class="extype" name="org.json4s.JValue">JValue</span>]</span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParamsSerializer@serialize(implicitformat:org.json4s.Formats):PartialFunction[Any,org.json4s.JValue]" title="Permalink" target="_top">
@@ -458,7 +458,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParamsSerializer@wait():Unit" title="Permalink" target="_top">
@@ -481,7 +481,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParamsSerializer@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
@@ -504,7 +504,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.NameParamsSerializer@wait(x$1:Long):Unit" title="Permalink" target="_top">
@@ -532,9 +532,9 @@
             </div><div class="parent" name="org.json4s.Serializer">
               <h3>Inherited from <span class="extype" name="org.json4s.Serializer">Serializer</span>[<a href="NameParams.html" class="extype" name="org.apache.predictionio.workflow.NameParams">NameParams</a>]</h3>
             </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
             </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
             </div>
         
         </div>
diff --git a/api/current/org/apache/predictionio/workflow/PersistentModelManifest.html b/api/current/org/apache/predictionio/workflow/PersistentModelManifest.html
index 9622c11..ab5294c 100644
--- a/api/current/org/apache/predictionio/workflow/PersistentModelManifest.html
+++ b/api/current/org/apache/predictionio/workflow/PersistentModelManifest.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>PersistentModelManifest - PredictionIO Scala API 0.13.0 - org.apache.predictionio.workflow.PersistentModelManifest</title>
-          <meta name="description" content="PersistentModelManifest - PredictionIO Scala API 0.13.0 - org.apache.predictionio.workflow.PersistentModelManifest" />
-          <meta name="keywords" content="PersistentModelManifest PredictionIO Scala API 0.13.0 org.apache.predictionio.workflow.PersistentModelManifest" />
+          <title>PersistentModelManifest - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.PersistentModelManifest</title>
+          <meta name="description" content="PersistentModelManifest - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.PersistentModelManifest" />
+          <meta name="keywords" content="PersistentModelManifest PredictionIO Scala API 0.14.0 org.apache.predictionio.workflow.PersistentModelManifest" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -45,13 +45,13 @@
         <span class="kind">case class</span>
       </span>
       <span class="symbol">
-        <span class="name">PersistentModelManifest</span><span class="params">(<span name="className">className: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <span class="name">PersistentModelManifest</span><span class="params">(<span name="className">className: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4>
       
           <div id="comment" class="fullcommenttop"><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
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+<html>
+        <head>
+          <title>PredictionServer - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.PredictionServer</title>
+          <meta name="description" content="PredictionServer - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.PredictionServer" />
+          <meta name="keywords" content="PredictionServer PredictionIO Scala API 0.14.0 org.apache.predictionio.workflow.PredictionServer" />
+          <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
+          
+      <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
+      <link href="../../../../lib/diagrams.css" media="screen" type="text/css" rel="stylesheet" id="diagrams-css" />
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+      
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+        <body class="type">
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+        <p id="owner"><a href="../../../package.html" class="extype" name="org">org</a>.<a href="../../package.html" class="extype" name="org.apache">apache</a>.<a href="../package.html" class="extype" name="org.apache.predictionio">predictionio</a>.<a href="package.html" class="extype" name="org.apache.predictionio.workflow">workflow</a></p>
+        <h1>PredictionServer</h1><h3><span class="morelinks"><div>Related Doc:
+            <a href="package.html" class="extype" name="org.apache.predictionio.workflow">package workflow</a>
+          </div></span></h3><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer" title="Permalink" target="_top">
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+
+      <h4 id="signature" class="signature">
+      <span class="modifier_kind">
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+              </ol>
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+        <div id="ancestors">
+                <span class="filtertype">Inherited<br />
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+        <div id="visbl">
+            <span class="filtertype">Visibility</span>
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+          </div>
+      </div>
+
+      <div id="template">
+        <div id="allMembers">
+        <div id="constructors" class="members">
+              <h3>Instance Constructors</h3>
+              <ol><li name="org.apache.predictionio.workflow.PredictionServer#&lt;init&gt;" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="&lt;init&gt;(args:org.apache.predictionio.workflow.ServerConfig,engineInstance:org.apache.predictionio.data.storage.EngineInstance,engine:org.apache.predictionio.controller.Engine[_,_,_,Q,P,_],engineLanguage:org.apache.predictionio.workflow.EngineLanguage.Value,dataSourceParams:org.apache.predictionio.controller.Params,preparatorParams:org.apache.predictionio.controller.Params,algorithms:Seq[org.apache.predictionio.core.BaseAlgorithm[_,_,Q,P]],algorithmsParams:Seq[org.apache.predictionio.controller.Params],models:Seq[Any],serving:org.apache.predictionio.core.BaseServing[Q,P],servingParams:org.apache.predictionio.controller.Params,system:akka.actor.ActorSystem):org.apache.predictionio.workflow.PredictionServer[Q,P]"></a>
+      <a id="&lt;init&gt;:PredictionServer[Q,P]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">new</span>
+      </span>
+      <span class="symbol">
+        <span class="name">PredictionServer</span><span class="params">(<span name="args">args: <a href="ServerConfig.html" class="extype" name="org.apache.predictionio.workflow.ServerConfig">ServerConfig</a></span>, <span name="engineInstance">engineInstance: <a href="../data/storage/EngineInstance.html" class="extype" name="org.apache.predictionio.data.storage.EngineInstance">EngineInstance</a></span>, <span name="engine">engine: <a href="../controller/Engine.html" class="extype" name="org.apache.predictionio.controller.Engine">Engine</a>[_, _, _, <span class="extype" name="org.apache.predictionio.workflow.PredictionServer.Q">Q</span>, <span class="extype" name="org.apache.predictionio.workflow.PredictionServer.P">P</span>, _]</span>, <span name="engineLanguage">engineLanguage: <a href="EngineLanguage$.html#ValueextendsOrdered[Enumeration.this.Value]withSerializable" class="extmbr" name="org.apache.predictionio.workflow.EngineLanguage.Value">EngineLanguage.Value</a></span>, <span name="dataSourceParams">dataSourceParams: <a href="../controller/Params.html" class="extype" name="org.apache.predictionio.controller.Params">Params</a></span>, <span name="preparatorParams">preparatorParams: <a href="../controller/Params.html" class="extype" name="org.apache.predictionio.controller.Params">Params</a></span>, <span name="algorithms">algorithms: <span class="extype" name="scala.Seq">Seq</span>[<a href="../core/BaseAlgorithm.html" class="extype" name="org.apache.predictionio.core.BaseAlgorithm">BaseAlgorithm</a>[_, _, <span class="extype" name="org.apache.predictionio.workflow.PredictionServer.Q">Q</span>, <span class="extype" name="org.apache.predictionio.workflow.PredictionServer.P">P</span>]]</span>, <span name="algorithmsParams">algorithmsParams: <span class="extype" name="scala.Seq">Seq</span>[<a href="../controller/Params.html" class="extype" name="org.apache.predictionio.controller.Params">Params</a>]</span>, <span name="models">models: <span class="extype" name="scala.Seq">Seq</span>[<span class="extype" name="scala.Any">Any</span>]</span>, <span name="serving">serving: <a href="../core/BaseServing.html" class="extype" name="org.apache.predictionio.core.BaseServing">BaseServing</a>[<span class="extype" name="org.apache.predictionio.workflow.PredictionServer.Q">Q</span>, <span class="extype" name="org.apache.predictionio.workflow.PredictionServer.P">P</span>]</span>, <span name="servingParams">servingParams: <a href="../controller/Params.html" class="extype" name="org.apache.predictionio.controller.Params">Params</a></span>, <span name="system">system: <span class="extype" name="akka.actor.ActorSystem">ActorSystem</span></span>)</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@&lt;init&gt;(args:org.apache.predictionio.workflow.ServerConfig,engineInstance:org.apache.predictionio.data.storage.EngineInstance,engine:org.apache.predictionio.controller.Engine[_,_,_,Q,P,_],engineLanguage:org.apache.predictionio.workflow.EngineLanguage.Value,dataSourceParams:org.apache.predictionio.controller.Params,preparatorParams:org.apache.predictionio.controller.Params,algorithms:Seq[org.apache.predictionio.core.BaseAlgorithm[_,_,Q,P]],algorithmsParams:Seq[org.apache.predictionio.controller.Params],models:Seq[Any],serving:org.apache.predictionio.core.BaseServing[Q,P],servingParams:org.apache.predictionio.controller.Params,system:akka.actor.ActorSystem):org.apache.predictionio.workflow.PredictionServer[Q,P]" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li></ol>
+            </div>
+
+        
+
+        
+
+        <div id="values" class="values members">
+              <h3>Value Members</h3>
+              <ol><li name="scala.AnyRef#!=" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="!=(x$1:Any):Boolean"></a>
+      <a id="!=(Any):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@!=(x$1:Any):Boolean" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef###" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="##():Int"></a>
+      <a id="##():Int"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@##():Int" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#==" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="==(x$1:Any):Boolean"></a>
+      <a id="==(Any):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@==(x$1:Any):Boolean" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="org.apache.predictionio.authentication.KeyAuthentication.ServerKey" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="ServerKey"></a>
+      <a id="ServerKey:ServerKey"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">object</span>
+      </span>
+      <span class="symbol">
+        <span class="name">ServerKey</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@ServerKey" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>KeyAuthentication</dd></dl></div>
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#algorithms" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="algorithms:Seq[org.apache.predictionio.core.BaseAlgorithm[_,_,Q,P]]"></a>
+      <a id="algorithms:Seq[BaseAlgorithm[_,_,Q,P]]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">val</span>
+      </span>
+      <span class="symbol">
+        <span class="name">algorithms</span><span class="result">: <span class="extype" name="scala.Seq">Seq</span>[<a href="../core/BaseAlgorithm.html" class="extype" name="org.apache.predictionio.core.BaseAlgorithm">BaseAlgorithm</a>[_, _, <span class="extype" name="org.apache.predictionio.workflow.PredictionServer.Q">Q</span>, <span class="extype" name="org.apache.predictionio.workflow.PredictionServer.P">P</span>]]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@algorithms:Seq[org.apache.predictionio.core.BaseAlgorithm[_,_,Q,P]]" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#algorithmsParams" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="algorithmsParams:Seq[org.apache.predictionio.controller.Params]"></a>
+      <a id="algorithmsParams:Seq[Params]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">val</span>
+      </span>
+      <span class="symbol">
+        <span class="name">algorithmsParams</span><span class="result">: <span class="extype" name="scala.Seq">Seq</span>[<a href="../controller/Params.html" class="extype" name="org.apache.predictionio.controller.Params">Params</a>]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@algorithmsParams:Seq[org.apache.predictionio.controller.Params]" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#args" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="args:org.apache.predictionio.workflow.ServerConfig"></a>
+      <a id="args:ServerConfig"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">val</span>
+      </span>
+      <span class="symbol">
+        <span class="name">args</span><span class="result">: <a href="ServerConfig.html" class="extype" name="org.apache.predictionio.workflow.ServerConfig">ServerConfig</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@args:org.apache.predictionio.workflow.ServerConfig" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="scala.Any#asInstanceOf" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="asInstanceOf[T0]:T0"></a>
+      <a id="asInstanceOf[T0]:T0"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">asInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <span class="extype" name="scala.Any.asInstanceOf.T0">T0</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@asInstanceOf[T0]:T0" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#authenticate" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="authenticate[T](authenticator:akka.http.scaladsl.server.RequestContext=&gt;scala.concurrent.Future[Either[akka.http.scaladsl.server.Rejection,T]]):akka.http.scaladsl.server.directives.AuthenticationDirective[T]"></a>
+      <a id="authenticate[T]((RequestContext)⇒Future[Either[Rejection,T]]):AuthenticationDirective[T]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">authenticate</span><span class="tparams">[<span name="T">T</span>]</span><span class="params">(<span name="authenticator">authenticator: (<a href="http://doc.akka.io/api/akka-http/10.1.5/index.html#akka.http.scaladsl.server.RequestContext" class="extype" target="_top">RequestContext</a>) ⇒ <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.concurrent.Future" class="extype" target="_top">Future</a>[<span class="extype" name="scala.Either">Either</span>[<a href="http://doc.akka.io/api/akka-http/10.1.5/index.html#akka.http.scaladsl.server.Rejection" class="extype" target="_top">Rejection</a>, <span class="extype" name="org.apache.predictionio.workflow.PredictionServer.authenticate.T">T</span>]]</span>)</span><span class="result">: <a href="http://doc.akka.io/api/akka-http/10.1.5/index.html#akka.http.scaladsl.server.directives.AuthenticationDirective" class="extype" target="_top">AuthenticationDirective</a>[<span class="extype" name="org.apache.predictionio.workflow.PredictionServer.authenticate.T">T</span>]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@authenticate[T](authenticator:akka.http.scaladsl.server.RequestContext=&gt;scala.concurrent.Future[Either[akka.http.scaladsl.server.Rejection,T]]):akka.http.scaladsl.server.directives.AuthenticationDirective[T]" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#avgServingSec" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="avgServingSec:Double"></a>
+      <a id="avgServingSec:Double"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">var</span>
+      </span>
+      <span class="symbol">
+        <span class="name">avgServingSec</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Double" class="extype" target="_top">Double</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@avgServingSec:Double" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="scala.AnyRef#clone" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="clone():Object"></a>
+      <a id="clone():AnyRef"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@clone():Object" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../java$lang.html" class="extype" name="java.lang">java.lang</a>] </dd><dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.CloneNotSupportedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#createRoute" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="createRoute():akka.http.scaladsl.server.Route"></a>
+      <a id="createRoute():Route"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">createRoute</span><span class="params">()</span><span class="result">: <span class="extype" name="akka.http.scaladsl.server.Route">Route</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@createRoute():akka.http.scaladsl.server.Route" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#dataSourceParams" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="dataSourceParams:org.apache.predictionio.controller.Params"></a>
+      <a id="dataSourceParams:Params"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">val</span>
+      </span>
+      <span class="symbol">
+        <span class="name">dataSourceParams</span><span class="result">: <a href="../controller/Params.html" class="extype" name="org.apache.predictionio.controller.Params">Params</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@dataSourceParams:org.apache.predictionio.controller.Params" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#engine" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="engine:org.apache.predictionio.controller.Engine[_,_,_,Q,P,_]"></a>
+      <a id="engine:Engine[_,_,_,Q,P,_]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">val</span>
+      </span>
+      <span class="symbol">
+        <span class="name">engine</span><span class="result">: <a href="../controller/Engine.html" class="extype" name="org.apache.predictionio.controller.Engine">Engine</a>[_, _, _, <span class="extype" name="org.apache.predictionio.workflow.PredictionServer.Q">Q</span>, <span class="extype" name="org.apache.predictionio.workflow.PredictionServer.P">P</span>, _]</span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@engine:org.apache.predictionio.controller.Engine[_,_,_,Q,P,_]" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#engineInstance" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="engineInstance:org.apache.predictionio.data.storage.EngineInstance"></a>
+      <a id="engineInstance:EngineInstance"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">val</span>
+      </span>
+      <span class="symbol">
+        <span class="name">engineInstance</span><span class="result">: <a href="../data/storage/EngineInstance.html" class="extype" name="org.apache.predictionio.data.storage.EngineInstance">EngineInstance</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@engineInstance:org.apache.predictionio.data.storage.EngineInstance" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#engineLanguage" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="engineLanguage:org.apache.predictionio.workflow.EngineLanguage.Value"></a>
+      <a id="engineLanguage:EngineLanguage.Value"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">val</span>
+      </span>
+      <span class="symbol">
+        <span class="name">engineLanguage</span><span class="result">: <a href="EngineLanguage$.html#ValueextendsOrdered[Enumeration.this.Value]withSerializable" class="extmbr" name="org.apache.predictionio.workflow.EngineLanguage.Value">EngineLanguage.Value</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@engineLanguage:org.apache.predictionio.workflow.EngineLanguage.Value" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="scala.AnyRef#eq" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="eq(x$1:AnyRef):Boolean"></a>
+      <a id="eq(AnyRef):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#equals" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="equals(x$1:Any):Boolean"></a>
+      <a id="equals(Any):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
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+      <span class="symbol">
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+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@equals(x$1:Any):Boolean" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#feedbackEnabled" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
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+      <h4 class="signature">
+      <span class="modifier_kind">
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+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@feedbackEnabled:Boolean" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="scala.AnyRef#finalize" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="finalize():Unit"></a>
+      <a id="finalize():Unit"></a>
+      <h4 class="signature">
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+        <span class="kind">def</span>
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+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@finalize():Unit" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../java$lang.html" class="extype" name="java.lang">java.lang</a>] </dd><dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="symbol">classOf[java.lang.Throwable]</span>
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+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@getClass():Class[_]" title="Permalink" target="_top">
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+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#hashCode" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
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+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@hashCode():Int" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.Any#isInstanceOf" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="isInstanceOf[T0]:Boolean"></a>
+      <a id="isInstanceOf[T0]:Boolean"></a>
+      <h4 class="signature">
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+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#lastServingSec" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
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+      <a id="lastServingSec:Double"></a>
+      <h4 class="signature">
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+        <span class="kind">var</span>
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+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@lastServingSec:Double" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#log" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="log:akka.event.LoggingAdapter"></a>
+      <a id="log:LoggingAdapter"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">val</span>
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+      </h4><span class="permalink">
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+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#models" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="models:Seq[Any]"></a>
+      <a id="models:Seq[Any]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">val</span>
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+      <span class="symbol">
+        <span class="name">models</span><span class="result">: <span class="extype" name="scala.Seq">Seq</span>[<span class="extype" name="scala.Any">Any</span>]</span>
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+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@models:Seq[Any]" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="scala.AnyRef#ne" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="ne(x$1:AnyRef):Boolean"></a>
+      <a id="ne(AnyRef):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
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+      </h4><span class="permalink">
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+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#notify" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="notify():Unit"></a>
+      <a id="notify():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
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+      </h4><span class="permalink">
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+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#notifyAll" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="notifyAll():Unit"></a>
+      <a id="notifyAll():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
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+      <span class="symbol">
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+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@notifyAll():Unit" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#pluginContext" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="pluginContext:org.apache.predictionio.workflow.EngineServerPluginContext"></a>
+      <a id="pluginContext:EngineServerPluginContext"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">val</span>
+      </span>
+      <span class="symbol">
+        <span class="name">pluginContext</span><span class="result">: <a href="EngineServerPluginContext.html" class="extype" name="org.apache.predictionio.workflow.EngineServerPluginContext">EngineServerPluginContext</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@pluginContext:org.apache.predictionio.workflow.EngineServerPluginContext" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#pluginsActorRef" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="pluginsActorRef:akka.actor.ActorRef"></a>
+      <a id="pluginsActorRef:ActorRef"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">val</span>
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+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@pluginsActorRef:akka.actor.ActorRef" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
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+    </span>
+      
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#preparatorParams" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="preparatorParams:org.apache.predictionio.controller.Params"></a>
+      <a id="preparatorParams:Params"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">val</span>
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+      <span class="symbol">
+        <span class="name">preparatorParams</span><span class="result">: <a href="../controller/Params.html" class="extype" name="org.apache.predictionio.controller.Params">Params</a></span>
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+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@preparatorParams:org.apache.predictionio.controller.Params" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#remoteLog" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="remoteLog(logUrl:String,logPrefix:String,message:String):Unit"></a>
+      <a id="remoteLog(String,String,String):Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
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+      <span class="symbol">
+        <span class="name">remoteLog</span><span class="params">(<span name="logUrl">logUrl: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="logPrefix">logPrefix: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="message">message: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@remoteLog(logUrl:String,logPrefix:String,message:String):Unit" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#requestCount" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="requestCount:Int"></a>
+      <a id="requestCount:Int"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">var</span>
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+      </h4><span class="permalink">
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+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#serverStartTime" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
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+      <a id="serverStartTime:DateTime"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">val</span>
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+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@serverStartTime:org.joda.time.DateTime" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#serving" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="serving:org.apache.predictionio.core.BaseServing[Q,P]"></a>
+      <a id="serving:BaseServing[Q,P]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">val</span>
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+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@serving:org.apache.predictionio.core.BaseServing[Q,P]" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#servingParams" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="servingParams:org.apache.predictionio.controller.Params"></a>
+      <a id="servingParams:Params"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">val</span>
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+      <span class="symbol">
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+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@servingParams:org.apache.predictionio.controller.Params" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="scala.AnyRef#synchronized" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="synchronized[T0](x$1:=&gt;T0):T0"></a>
+      <a id="synchronized[T0](⇒T0):T0"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
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+      <span class="symbol">
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+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@synchronized[T0](x$1:=&gt;T0):T0" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#system" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="system:akka.actor.ActorSystem"></a>
+      <a id="system:ActorSystem"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">val</span>
+      </span>
+      <span class="symbol">
+        <span class="name">system</span><span class="result">: <span class="extype" name="akka.actor.ActorSystem">ActorSystem</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@system:akka.actor.ActorSystem" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
+    </li><li name="org.apache.predictionio.workflow.PredictionServer#timeout" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="timeout:akka.util.Timeout"></a>
+      <a id="timeout:Timeout"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">implicit </span>
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+      <span class="symbol">
+        <span class="name">timeout</span><span class="result">: <span class="extype" name="akka.util.Timeout">Timeout</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@timeout:akka.util.Timeout" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
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+    </span>
+      
+    </li><li name="scala.AnyRef#toString" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="toString():String"></a>
+      <a id="toString():String"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
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+        <span class="name">toString</span><span class="params">()</span><span class="result">: <span class="extype" name="java.lang.String">String</span></span>
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+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@toString():String" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
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+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait():Unit"></a>
+      <a id="wait():Unit"></a>
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+        <span class="modifier">final </span>
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+      <span class="symbol">
+        <span class="name">wait</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@wait():Unit" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
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+      <a id="wait(Long,Int):Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
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+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@wait(x$1:Long,x$2:Int):Unit" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait(x$1:Long):Unit"></a>
+      <a id="wait(Long):Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Long" class="extype" target="_top">Long</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@wait(x$1:Long):Unit" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="org.apache.predictionio.authentication.KeyAuthentication#withAccessKeyFromFile" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="withAccessKeyFromFile:akka.http.scaladsl.server.RequestContext=&gt;scala.concurrent.Future[Either[akka.http.scaladsl.server.Rejection,akka.http.scaladsl.model.HttpRequest]]"></a>
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+      <h4 class="signature">
+      <span class="modifier_kind">
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+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.PredictionServer@withAccessKeyFromFile:akka.http.scaladsl.server.RequestContext=&gt;scala.concurrent.Future[Either[akka.http.scaladsl.server.Rejection,akka.http.scaladsl.model.HttpRequest]]" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>KeyAuthentication</dd></dl></div>
+    </li></ol>
+            </div>
+
+        
+
+        
+        </div>
+
+        <div id="inheritedMembers">
+        <div class="parent" name="org.apache.predictionio.authentication.KeyAuthentication">
+              <h3>Inherited from <span class="extype" name="org.apache.predictionio.authentication.KeyAuthentication">KeyAuthentication</span></h3>
+            </div><div class="parent" name="scala.AnyRef">
+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
+            </div><div class="parent" name="scala.Any">
+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
+            </div>
+        
+        </div>
+
+        <div id="groupedMembers">
+        <div class="group" name="Ungrouped">
+              <h3>Ungrouped</h3>
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+            </div>
+        </div>
+
+      </div>
+
+      <div id="tooltip"></div>
+
+      <div id="footer">  </div>
+
+
+    </body>
+      </html>
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index cac37a8..138aef2 100644
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-          <meta name="keywords" content="ReloadServer PredictionIO Scala API 0.13.0 org.apache.predictionio.workflow.ReloadServer" />
+          <title>ReloadServer - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.ReloadServer</title>
+          <meta name="description" content="ReloadServer - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.ReloadServer" />
+          <meta name="keywords" content="ReloadServer PredictionIO Scala API 0.14.0 org.apache.predictionio.workflow.ReloadServer" />
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+        <span class="name">ReloadServer</span><span class="params">()</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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@@ -157,7 +157,7 @@
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@@ -214,7 +214,7 @@
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+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -322,7 +322,7 @@
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@@ -356,7 +356,7 @@
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@@ -379,7 +379,7 @@
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-      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div>
-    </li><li name="scala.AnyRef###" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
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-    </li><li name="spray.routing.directives.PathDirectives#pathSingleSlash" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="pathSingleSlash:spray.routing.Directive0"></a>
-      <a id="pathSingleSlash:Directive0"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">def</span>
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-      <span class="symbol">
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-      <a id="pathSuffix[L&lt;:&lt;?&gt;](pm:&lt;?&gt;):spray.routing.Directive[L]"></a>
-      <a id="pathSuffix[L&lt;:HList](PathMatcher[L]):Directive[L]"></a>
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-        <span class="modifier"></span>
-        <span class="kind">def</span>
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-      <h4 class="signature">
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-        <span class="kind">def</span>
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-      <span class="symbol">
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-      <a id="pluginsActorRef:ActorRef"></a>
-      <h4 class="signature">
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-        <span class="name">post</span><span class="result">: <span class="extype" name="spray.routing.Directive0">Directive0</span></span>
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-      <h4 class="signature">
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-              
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-      <a id="preparatorParams:org.apache.predictionio.controller.Params"></a>
-      <a id="preparatorParams:Params"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
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-      <a id="produce[T&lt;:&lt;?&gt;](marshaller:&lt;?&gt;):spray.routing.Directive[shapeless.::[T=&gt;Unit,shapeless.HNil]]"></a>
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-      <h4 class="signature">
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-      <span class="symbol">
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-      <a id="provide[T&lt;:&lt;?&gt;](value:&lt;?&gt;):spray.routing.Directive1[T]"></a>
-      <a id="provide[T](T):Directive1[T]"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">def</span>
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-      <span class="symbol">
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-      <a id="rawPathPrefix[L&lt;:&lt;?&gt;](pm:&lt;?&gt;):spray.routing.Directive[L]"></a>
-      <a id="rawPathPrefix[L&lt;:HList](PathMatcher[L]):Directive[L]"></a>
-      <h4 class="signature">
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-        <span class="modifier"></span>
-        <span class="kind">def</span>
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-      <span class="symbol">
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-      <h4 class="signature">
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-      <a id="receive:akka.actor.Actor.Receive"></a>
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-      <a id="respondWithHeader(HttpHeader):Directive0"></a>
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-        <span class="name">respondWithSingletonHeaders</span><span class="params">(<span name="responseHeaders">responseHeaders: <span class="extype" name="spray.http.HttpHeader">HttpHeader</span>*</span>)</span><span class="result">: <span class="extype" name="spray.routing.Directive0">Directive0</span></span>
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-    </li><li name="spray.routing.directives.RespondWithDirectives#respondWithStatus" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="respondWithStatus(responseStatus:&lt;?&gt;):spray.routing.Directive0"></a>
-      <a id="respondWithStatus(StatusCode):Directive0"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">def</span>
-      </span>
-      <span class="symbol">
-        <span class="name">respondWithStatus</span><span class="params">(<span name="responseStatus">responseStatus: <span class="extype" name="spray.http.StatusCode">StatusCode</span></span>)</span><span class="result">: <span class="extype" name="spray.routing.Directive0">Directive0</span></span>
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-    </li><li name="spray.routing.directives.EncodingDirectives#responseEncodingAccepted" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="responseEncodingAccepted(encoding:&lt;?&gt;):spray.routing.Directive0"></a>
-      <a id="responseEncodingAccepted(HttpEncoding):Directive0"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">def</span>
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-      <span class="symbol">
-        <span class="name">responseEncodingAccepted</span><span class="params">(<span name="encoding">encoding: <span class="extype" name="spray.http.HttpEncoding">HttpEncoding</span></span>)</span><span class="result">: <span class="extype" name="spray.routing.Directive0">Directive0</span></span>
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-      <a id="rewriteUnmatchedPath(f:&lt;?&gt;):spray.routing.Directive0"></a>
-      <a id="rewriteUnmatchedPath((Path)⇒Path):Directive0"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">def</span>
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-      <span class="symbol">
-        <span class="name">rewriteUnmatchedPath</span><span class="params">(<span name="f">f: (<span class="extype" name="spray.http.Uri.Path">Path</span>) ⇒ <span class="extype" name="spray.http.Uri.Path">Path</span></span>)</span><span class="result">: <span class="extype" name="spray.routing.Directive0">Directive0</span></span>
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-      <a id="routeRouteResponse(f:&lt;?&gt;):spray.routing.Directive0"></a>
-      <a id="routeRouteResponse(PartialFunction[Any,Route]):Directive0"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">def</span>
-      </span>
-      <span class="symbol">
-        <span class="name">routeRouteResponse</span><span class="params">(<span name="f">f: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.PartialFunction" class="extype" target="_top">PartialFunction</a>[<a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a>, <span class="extype" name="spray.routing.Route">Route</span>]</span>)</span><span class="result">: <span class="extype" name="spray.routing.Directive0">Directive0</span></span>
-      </span>
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-    </li><li name="spray.routing.HttpServiceBase#runRoute" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="runRoute(route:spray.routing.Route)(impliciteh:spray.routing.ExceptionHandler,implicitrh:spray.routing.RejectionHandler,implicitac:akka.actor.ActorContext,implicitrs:spray.routing.RoutingSettings,implicitlog:spray.util.LoggingContext):akka.actor.Actor.Receive"></a>
-      <a id="runRoute(Route)(ExceptionHandler,RejectionHandler,ActorContext,RoutingSettings,LoggingContext):akka.actor.Actor.Receive"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">def</span>
-      </span>
-      <span class="symbol">
-        <span class="name">runRoute</span><span class="params">(<span name="route">route: <span class="extype" name="spray.routing.Route">Route</span></span>)</span><span class="params">(<span class="implicit">implicit </span><span name="eh">eh: <span class="extype" name="spray.routing.ExceptionHandler">ExceptionHandler</span></span>, <span name="rh">rh: <span class="extype" name="spray.routing.RejectionHandler">RejectionHandler</span></span>, <span name="ac">ac: <a href="http://doc.akka.io/api/akka/2.4.17/index.html#akka.actor.ActorContext" class="extype" target="_top">ActorContext</a></span>, <span name="rs">rs: <span class="extype" name="spray.routing.RoutingSettings">RoutingSettings</span></span>, <span name="log">log: <span class="extype" name="spray.util.LoggingContext">LoggingContext</span></span>)</span><span class="result">: <span class="extype" name="akka.actor.Actor.Receive">akka.actor.Actor.Receive</span></span>
-      </span>
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-    </li><li name="spray.routing.directives.SchemeDirectives#scheme" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="scheme(schm:&lt;?&gt;):spray.routing.Directive0"></a>
-      <a id="scheme(String):Directive0"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">def</span>
-      </span>
-      <span class="symbol">
-        <span class="name">scheme</span><span class="params">(<span name="schm">schm: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result">: <span class="extype" name="spray.routing.Directive0">Directive0</span></span>
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-      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>SchemeDirectives</dd></dl></div>
-    </li><li name="spray.routing.directives.SchemeDirectives#schemeName" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="schemeName:spray.routing.Directive1[String]"></a>
-      <a id="schemeName:Directive1[String]"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">def</span>
-      </span>
-      <span class="symbol">
-        <span class="name">schemeName</span><span class="result">: <span class="extype" name="spray.routing.Directive1">Directive1</span>[<span class="extype" name="scala.Predef.String">String</span>]</span>
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-    </li><li name="spray.routing.HttpServiceBase#sealRejectionHandler" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="sealRejectionHandler(rh:&lt;?&gt;):spray.routing.RejectionHandler"></a>
-      <a id="sealRejectionHandler(RejectionHandler):RejectionHandler"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">def</span>
-      </span>
-      <span class="symbol">
-        <span class="name">sealRejectionHandler</span><span class="params">(<span name="rh">rh: <span class="extype" name="spray.routing.RejectionHandler">RejectionHandler</span></span>)</span><span class="result">: <span class="extype" name="spray.routing.RejectionHandler">RejectionHandler</span></span>
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-    </li><li name="spray.routing.HttpServiceBase#sealRoute" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="sealRoute(route:&lt;?&gt;)(impliciteh:&lt;?&gt;,implicitrh:&lt;?&gt;):spray.routing.Route"></a>
-      <a id="sealRoute(Route)(ExceptionHandler,RejectionHandler):Route"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">def</span>
-      </span>
-      <span class="symbol">
-        <span class="name">sealRoute</span><span class="params">(<span name="route">route: <span class="extype" name="spray.routing.Route">Route</span></span>)</span><span class="params">(<span class="implicit">implicit </span><span name="eh">eh: <span class="extype" name="spray.routing.ExceptionHandler">ExceptionHandler</span></span>, <span name="rh">rh: <span class="extype" name="spray.routing.RejectionHandler">RejectionHandler</span></span>)</span><span class="result">: <span class="extype" name="spray.routing.Route">Route</span></span>
-      </span>
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-      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>HttpServiceBase</dd></dl></div>
-    </li><li name="spray.routing.ImplicitPathMatcherConstruction#segmentStringToPathMatcher" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="segmentStringToPathMatcher(segment:String):spray.routing.PathMatcher0"></a>
-      <a id="segmentStringToPathMatcher(String):PathMatcher0"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier">implicit </span>
-        <span class="kind">def</span>
-      </span>
-      <span class="symbol">
-        <span class="name">segmentStringToPathMatcher</span><span class="params">(<span name="segment">segment: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result">: <span class="extype" name="spray.routing.PathMatcher0">PathMatcher0</span></span>
-      </span>
-      </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.workflow.ServerActor@segmentStringToPathMatcher(segment:String):spray.routing.PathMatcher0" title="Permalink" target="_top">
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-    </span>
-      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>ImplicitPathMatcherConstruction</dd></dl></div>
-    </li><li name="akka.actor.Actor#self" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="self:akka.actor.ActorRef"></a>
-      <a id="self:ActorRef"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier">implicit final </span>
-        <span class="kind">val</span>
-      </span>
-      <span class="symbol">
-        <span class="name">self</span><span class="result">: <a href="http://doc.akka.io/api/akka/2.4.17/index.html#akka.actor.ActorRef" class="extype" target="_top">ActorRef</a></span>
-      </span>
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-    </span>
-      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Actor</dd></dl></div>
-    </li><li name="akka.actor.Actor#sender" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="sender():akka.actor.ActorRef"></a>
-      <a id="sender():ActorRef"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier">final </span>
-        <span class="kind">def</span>
-      </span>
-      <span class="symbol">
-        <span class="name">sender</span><span class="params">()</span><span class="result">: <a href="http://doc.akka.io/api/akka/2.4.17/index.html#akka.actor.ActorRef" class="extype" target="_top">ActorRef</a></span>
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-      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Actor</dd></dl></div>
-    </li><li name="spray.routing.PathMatchers#separateOnSlashes" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="separateOnSlashes(string:&lt;?&gt;):spray.routing.PathMatcher0"></a>
-      <a id="separateOnSlashes(String):PathMatcher0"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">def</span>
-      </span>
-      <span class="symbol">
-        <span class="name">separateOnSlashes</span><span class="params">(<span name="string">string: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result">: <span class="extype" name="spray.routing.PathMatcher0">PathMatcher0</span></span>
-      </span>
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-      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>PathMatchers</dd></dl></div>
-    </li><li name="org.apache.predictionio.workflow.ServerActor#serverStartTime" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
-      <a id="serverStartTime:org.joda.time.DateTime"></a>
-      <a id="serverStartTime:DateTime"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">val</span>
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-      <span class="symbol">
-        <span class="name">serverStartTime</span><span class="result">: <span class="extype" name="org.joda.time.DateTime">DateTime</span></span>
-      </span>
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-      <a id="serving:org.apache.predictionio.core.BaseServing[Q,P]"></a>
-      <a id="serving:BaseServing[Q,P]"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
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-      <a id="servingParams:org.apache.predictionio.controller.Params"></a>
-      <a id="servingParams:Params"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">val</span>
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-      <span class="symbol">
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-      </span>
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-      
-    </li><li name="spray.routing.directives.CookieDirectives#setCookie" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="setCookie(first:&lt;?&gt;,more:&lt;?&gt;):spray.routing.Directive0"></a>
-      <a id="setCookie(HttpCookie,HttpCookie*):Directive0"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier"></span>
-        <span class="kind">def</span>
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-      <span class="symbol">
-        <span class="name">setCookie</span><span class="params">(<span name="first">first: <span class="extype" name="spray.http.HttpCookie">HttpCookie</span></span>, <span name="more">more: <span class="extype" name="spray.http.HttpCookie">HttpCookie</span>*</span>)</span><span class="result">: <span class="extype" name="spray.routing.Directive0">Directive0</span></span>
-      </span>
-      </h4><span class="permalink">
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-      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>CookieDirectives</dd></dl></div>
-    </li><li name="spray.routing.directives.ToNameReceptaclePimps#string2NR" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped">
-      <a id="string2NR(string:String):spray.routing.directives.NameReceptacle[String]"></a>
-      <a id="string2NR(String):NameReceptacle[String]"></a>
-      <h4 class="signature">
-      <span class="modifier_kind">
-        <span class="modifier">implicit </span>
-        <span class="kind">def</span>
-      </span>
-      <span class="symbol">
-        <span class="name">string2NR</span><span class="params">(<span name="string">string: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result">: <span class="extype" name="spray.routing.directives.NameReceptacle">NameReceptacle</span>[<span class="extype" name="scala.Predef.String">String</span>]</span>
-      </span>
-      </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.workflow.ServerActor@string2NR(string:String):spray.routing.directives.NameReceptacle[String]" title="Permalink" target="_top">
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-      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>ToNameReceptaclePimps</dd></dl></div>
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-      <a id="stringExtractionPair2PathMatcher[T](tuple:(String,T)):spray.routing.PathMatcher1[T]"></a>
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-      <h4 class="signature">
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-        <span class="kind">def</span>
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-        <div id="inheritedMembers">
-        <div class="parent" name="org.apache.predictionio.authentication.KeyAuthentication">
-              <h3>Inherited from <span class="extype" name="org.apache.predictionio.authentication.KeyAuthentication">KeyAuthentication</span></h3>
-            </div><div class="parent" name="spray.routing.HttpService">
-              <h3>Inherited from <span class="extype" name="spray.routing.HttpService">HttpService</span></h3>
-            </div><div class="parent" name="spray.routing.HttpServiceBase">
-              <h3>Inherited from <span class="extype" name="spray.routing.HttpServiceBase">HttpServiceBase</span></h3>
-            </div><div class="parent" name="spray.routing.Directives">
-              <h3>Inherited from <span class="extype" name="spray.routing.Directives">Directives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.SecurityDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.SecurityDirectives">SecurityDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.SchemeDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.SchemeDirectives">SchemeDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.RouteDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.RouteDirectives">RouteDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.RespondWithDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.RespondWithDirectives">RespondWithDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.RangeDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.RangeDirectives">RangeDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.PathDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.PathDirectives">PathDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.ImplicitPathMatcherConstruction">
-              <h3>Inherited from <span class="extype" name="spray.routing.ImplicitPathMatcherConstruction">ImplicitPathMatcherConstruction</span></h3>
-            </div><div class="parent" name="spray.routing.PathMatchers">
-              <h3>Inherited from <span class="extype" name="spray.routing.PathMatchers">PathMatchers</span></h3>
-            </div><div class="parent" name="spray.routing.directives.ParameterDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.ParameterDirectives">ParameterDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.MiscDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.MiscDirectives">MiscDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.MethodDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.MethodDirectives">MethodDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.MarshallingDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.MarshallingDirectives">MarshallingDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.HostDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.HostDirectives">HostDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.HeaderDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.HeaderDirectives">HeaderDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.FutureDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.FutureDirectives">FutureDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.FormFieldDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.FormFieldDirectives">FormFieldDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.ToNameReceptaclePimps">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.ToNameReceptaclePimps">ToNameReceptaclePimps</span></h3>
-            </div><div class="parent" name="spray.routing.directives.FileAndResourceDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.FileAndResourceDirectives">FileAndResourceDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.ExecutionDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.ExecutionDirectives">ExecutionDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.EncodingDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.EncodingDirectives">EncodingDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.DebuggingDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.DebuggingDirectives">DebuggingDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.CookieDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.CookieDirectives">CookieDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.ChunkingDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.ChunkingDirectives">ChunkingDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.CacheConditionDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.CacheConditionDirectives">CacheConditionDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.BasicDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.BasicDirectives">BasicDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.directives.AnyParamDirectives">
-              <h3>Inherited from <span class="extype" name="spray.routing.directives.AnyParamDirectives">AnyParamDirectives</span></h3>
-            </div><div class="parent" name="spray.routing.RouteConcatenation">
-              <h3>Inherited from <span class="extype" name="spray.routing.RouteConcatenation">spray.routing.RouteConcatenation</span></h3>
-            </div><div class="parent" name="akka.actor.Actor">
-              <h3>Inherited from <a href="http://doc.akka.io/api/akka/2.4.17/index.html#akka.actor.Actor" class="extype" target="_top">Actor</a></h3>
-            </div><div class="parent" name="scala.AnyRef">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></h3>
-            </div><div class="parent" name="scala.Any">
-              <h3>Inherited from <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></h3>
-            </div>
-        
-        </div>
-
-        <div id="groupedMembers">
-        <div class="group" name="Ungrouped">
-              <h3>Ungrouped</h3>
-              
-            </div>
-        </div>
-
-      </div>
-
-      <div id="tooltip"></div>
-
-      <div id="footer">  </div>
-
-
-    </body>
-      </html>
diff --git a/api/current/org/apache/predictionio/workflow/ServerConfig.html b/api/current/org/apache/predictionio/workflow/ServerConfig.html
index de35670..2375bb2 100644
--- a/api/current/org/apache/predictionio/workflow/ServerConfig.html
+++ b/api/current/org/apache/predictionio/workflow/ServerConfig.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html >
 <html>
         <head>
-          <title>ServerConfig - PredictionIO Scala API 0.13.0 - org.apache.predictionio.workflow.ServerConfig</title>
-          <meta name="description" content="ServerConfig - PredictionIO Scala API 0.13.0 - org.apache.predictionio.workflow.ServerConfig" />
-          <meta name="keywords" content="ServerConfig PredictionIO Scala API 0.13.0 org.apache.predictionio.workflow.ServerConfig" />
+          <title>ServerConfig - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.ServerConfig</title>
+          <meta name="description" content="ServerConfig - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.ServerConfig" />
+          <meta name="keywords" content="ServerConfig PredictionIO Scala API 0.14.0 org.apache.predictionio.workflow.ServerConfig" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../../../../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
@@ -45,13 +45,13 @@
         <span class="kind">case class</span>
       </span>
       <span class="symbol">
-        <span class="name">ServerConfig</span><span class="params">(<span name="batch">batch: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineInstanceId">engineInstanceId: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineId">engineId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVersion">engineVersion: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVariant">engineVariant: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="env">env: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="ip">ip: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;0.0.0.0&quot;</span></span>, <span name="port">port: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a> = <span class="symbol">8000</span></span>, <span name="feedback">feedback: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="eventServerIp">eventServerIp: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;0.0.0.0&quot;</span></span>, <span name="eventServerPort">eventServerPort: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a> = <span class="symbol">7070</span></span>, <span name="accessKey">accessKey: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="logUrl">logUrl: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="logPrefix">logPrefix: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="logFile">logFile: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="verbose">verbose: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="debug">debug: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="jsonExtractor">jsonExtractor: <a href="JsonExtractorOption$.html#JsonExtractorOption=org.apache.predictionio.workflow.JsonExtractorOption.Value" class="extmbr" name="org.apache.predictionio.workflow.JsonExtractorOption.JsonExtractorOption">JsonExtractorOption.JsonExtractorOption</a> = <span class="symbol"><span class="name"><a href="JsonExtractorOption$.html">JsonExtractorOption.Both</a></span></span></span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <span class="name">ServerConfig</span><span class="params">(<span name="batch">batch: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineInstanceId">engineInstanceId: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineId">engineId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVersion">engineVersion: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVariant">engineVariant: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="env">env: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="ip">ip: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;0.0.0.0&quot;</span></span>, <span name="port">port: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a> = <span class="symbol">8000</span></span>, <span name="feedback">feedback: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="eventServerIp">eventServerIp: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;0.0.0.0&quot;</span></span>, <span name="eventServerPort">eventServerPort: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a> = <span class="symbol">7070</span></span>, <span name="accessKey">accessKey: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="logUrl">logUrl: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="logPrefix">logPrefix: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="logFile">logFile: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="verbose">verbose: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="debug">debug: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="jsonExtractor">jsonExtractor: <a href="JsonExtractorOption$.html#JsonExtractorOption=org.apache.predictionio.workflow.JsonExtractorOption.Value" class="extmbr" name="org.apache.predictionio.workflow.JsonExtractorOption.JsonExtractorOption">JsonExtractorOption.JsonExtractorOption</a> = <span class="symbol"><span class="name"><a href="JsonExtractorOption$.html">JsonExtractorOption.Both</a></span></span></span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4>
       
           <div id="comment" class="fullcommenttop"><div class="toggleContainer block">
           <span class="toggle">Linear Supertypes</span>
-          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Equals" class="extype" target="_top">Equals</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a>, <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></div>
+          <div class="superTypes hiddenContent"><a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a>, <span class="extype" name="java.io.Serializable">Serializable</span>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a>, <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Equals" class="extype" target="_top">Equals</a>, <span class="extype" name="scala.AnyRef">AnyRef</span>, <span class="extype" name="scala.Any">Any</span></div>
         </div></div>
         
 
@@ -97,7 +97,7 @@
         <span class="kind">new</span>
       </span>
       <span class="symbol">
-        <span class="name">ServerConfig</span><span class="params">(<span name="batch">batch: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineInstanceId">engineInstanceId: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineId">engineId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVersion">engineVersion: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVariant">engineVariant: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="env">env: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="ip">ip: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;0.0.0.0&quot;</span></span>, <span name="port">port: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a> = <span class="symbol">8000</span></span>, <span name="feedback">feedback: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="eventServerIp">eventServerIp: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;0.0.0.0&quot;</span></span>, <span name="eventServerPort">eventServerPort: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a> = <span class="symbol">7070</span></span>, <span name="accessKey">accessKey: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="logUrl">logUrl: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="logPrefix">logPrefix: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="logFile">logFile: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="verbose">verbose: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="debug">debug: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="jsonExtractor">jsonExtractor: <a href="JsonExtractorOption$.html#JsonExtractorOption=org.apache.predictionio.workflow.JsonExtractorOption.Value" class="extmbr" name="org.apache.predictionio.workflow.JsonExtractorOption.JsonExtractorOption">JsonExtractorOption.JsonExtractorOption</a> = <span class="symbol"><span class="name"><a href="JsonExtractorOption$.html">JsonExtractorOption.Both</a></span></span></span>)</span>
+        <span class="name">ServerConfig</span><span class="params">(<span name="batch">batch: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineInstanceId">engineInstanceId: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineId">engineId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVersion">engineVersion: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVariant">engineVariant: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="env">env: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="ip">ip: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;0.0.0.0&quot;</span></span>, <span name="port">port: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a> = <span class="symbol">8000</span></span>, <span name="feedback">feedback: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="eventServerIp">eventServerIp: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;0.0.0.0&quot;</span></span>, <span name="eventServerPort">eventServerPort: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a> = <span class="symbol">7070</span></span>, <span name="accessKey">accessKey: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="logUrl">logUrl: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="logPrefix">logPrefix: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="logFile">logFile: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="verbose">verbose: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="debug">debug: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="jsonExtractor">jsonExtractor: <a href="JsonExtractorOption$.html#JsonExtractorOption=org.apache.predictionio.workflow.JsonExtractorOption.Value" class="extmbr" name="org.apache.predictionio.workflow.JsonExtractorOption.JsonExtractorOption">JsonExtractorOption.JsonExtractorOption</a> = <span class="symbol"><span class="name"><a href="JsonExtractorOption$.html">JsonExtractorOption.Both</a></span></span></span>)</span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.ServerConfig@&lt;init&gt;(batch:String,engineInstanceId:String,engineId:Option[String],engineVersion:Option[String],engineVariant:String,env:Option[String],ip:String,port:Int,feedback:Boolean,eventServerIp:String,eventServerPort:Int,accessKey:Option[String],logUrl:Option[String],logPrefix:Option[String],logFile:Option[String],verbose:Boolean,debug:Boolean,jsonExtractor:org.apache.predictionio.workflow.JsonExtractorOption.JsonExtractorOption):org.apache.predictionio.workflow.ServerConfig" title="Permalink" target="_top">
@@ -123,7 +123,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $bang$eq" class="name">!=</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.ServerConfig@!=(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -140,7 +140,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span title="gt4s: $hash$hash" class="name">##</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.ServerConfig@##():Int" title="Permalink" target="_top">
@@ -157,7 +157,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any" class="extype" target="_top">Any</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span title="gt4s: $eq$eq" class="name">==</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.Any">Any</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.ServerConfig@==(x$1:Any):Boolean" title="Permalink" target="_top">
@@ -174,7 +174,7 @@
         <span class="kind">val</span>
       </span>
       <span class="symbol">
-        <span class="name">accessKey</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
+        <span class="name">accessKey</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.ServerConfig@accessKey:Option[String]" title="Permalink" target="_top">
@@ -225,7 +225,7 @@
         <span class="kind">def</span>
       </span>
       <span class="symbol">
-        <span class="name">clone</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <span class="name">clone</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.ServerConfig@clone():Object" title="Permalink" target="_top">
@@ -248,7 +248,7 @@
         <span class="kind">val</span>
       </span>
       <span class="symbol">
-        <span class="name">debug</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">debug</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.ServerConfig@debug:Boolean" title="Permalink" target="_top">
@@ -265,7 +265,7 @@
         <span class="kind">val</span>
       </span>
       <span class="symbol">
-        <span class="name">engineId</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
+        <span class="name">engineId</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.ServerConfig@engineId:Option[String]" title="Permalink" target="_top">
@@ -316,7 +316,7 @@
         <span class="kind">val</span>
       </span>
       <span class="symbol">
-        <span class="name">engineVersion</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
+        <span class="name">engineVersion</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.ServerConfig@engineVersion:Option[String]" title="Permalink" target="_top">
@@ -333,7 +333,7 @@
         <span class="kind">val</span>
       </span>
       <span class="symbol">
-        <span class="name">env</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
+        <span class="name">env</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.ServerConfig@env:Option[String]" title="Permalink" target="_top">
@@ -350,7 +350,7 @@
         <span class="kind">def</span>
       </span>
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-        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">eq</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -384,7 +384,7 @@
         <span class="kind">val</span>
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-        <span class="name">eventServerPort</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a></span>
+        <span class="name">eventServerPort</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.ServerConfig@eventServerPort:Int" title="Permalink" target="_top">
@@ -401,7 +401,7 @@
         <span class="kind">val</span>
       </span>
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-        <span class="name">feedback</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">feedback</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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@@ -418,7 +418,7 @@
         <span class="kind">def</span>
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+        <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.ServerConfig@finalize():Unit" title="Permalink" target="_top">
@@ -475,7 +475,7 @@
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+        <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.ServerConfig@isInstanceOf[T0]:Boolean" title="Permalink" target="_top">
@@ -509,7 +509,7 @@
         <span class="kind">val</span>
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-        <span class="name">logFile</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
+        <span class="name">logFile</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.ServerConfig@logFile:Option[String]" title="Permalink" target="_top">
@@ -526,7 +526,7 @@
         <span class="kind">val</span>
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-        <span class="name">logPrefix</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
+        <span class="name">logPrefix</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.ServerConfig@logPrefix:Option[String]" title="Permalink" target="_top">
@@ -543,7 +543,7 @@
         <span class="kind">val</span>
       </span>
       <span class="symbol">
-        <span class="name">logUrl</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
+        <span class="name">logUrl</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>]</span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.ServerConfig@logUrl:Option[String]" title="Permalink" target="_top">
@@ -560,7 +560,7 @@
         <span class="kind">def</span>
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-        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
+        <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a></span>
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       </h4><span class="permalink">
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@@ -577,7 +577,7 @@
         <span class="kind">def</span>
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-        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
+        <span class="name">notify</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span>
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       <a href="../../../../index.html#org.apache.predictionio.workflow.ServerConfig@notify():Unit" title="Permalink" target="_top">
@@ -594,7 +594,7 @@
         <span class="kind">def</span>
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@@ -690,9 +690,9 @@
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+              <h3>Inherited from <span class="extype" name="scala.AnyRef">AnyRef</span></h3>
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+              <h3>Inherited from <span class="extype" name="scala.Any">Any</span></h3>
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diff --git a/api/current/org/apache/predictionio/workflow/WorkflowParams.html b/api/current/org/apache/predictionio/workflow/WorkflowParams.html
index 658a9b8..0d18c58 100644
--- a/api/current/org/apache/predictionio/workflow/WorkflowParams.html
+++ b/api/current/org/apache/predictionio/workflow/WorkflowParams.html
@@ -1,9 +1,9 @@
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-          <meta name="description" content="WorkflowParams - PredictionIO Scala API 0.13.0 - org.apache.predictionio.workflow.WorkflowParams" />
-          <meta name="keywords" content="WorkflowParams PredictionIO Scala API 0.13.0 org.apache.predictionio.workflow.WorkflowParams" />
+          <title>WorkflowParams - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.WorkflowParams</title>
+          <meta name="description" content="WorkflowParams - PredictionIO Scala API 0.14.0 - org.apache.predictionio.workflow.WorkflowParams" />
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@@ -45,14 +45,14 @@
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           <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>Workflow parameters.
 </p></div><dl class="paramcmts block"><dt class="param">batch</dt><dd class="cmt"><p>Batch label of the run.</p></dd><dt class="param">verbose</dt><dd class="cmt"><p>Verbosity level.</p></dd><dt class="param">saveModel</dt><dd class="cmt"><p>Controls whether trained models are persisted.</p></dd><dt class="param">sparkEnv</dt><dd class="cmt"><p>Spark properties that will be set in SparkConf.setAll().</p></dd><dt class="param">skipSanityCheck</dt><dd class="cmt"><p>Skips all data sanity check.</p></dd><dt class="param">stopAfterRead</dt><dd class="cmt"><p>Stops workflow after reading from data source.</p></dd><dt class="param">stopAfterPrepare</dt><dd class="cmt"><p>Stops workflow after data preparation.</p></dd></dl><div class="toggleContainer block">
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@@ -115,7 +115,7 @@
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@@ -141,7 +141,7 @@
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@@ -249,7 +249,7 @@
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+        <a href="BatchPredictConfig.html"><span class="name">BatchPredictConfig</span></a><span class="params">(<span name="inputFilePath">inputFilePath: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;batchpredict-input.json&quot;</span></span>, <span name="outputFilePath">outputFilePath: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;batchpredict-output.json&quot;</span></span>, <span name="queryPartitions">queryPartitions: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a>] = <span class="symbol">None</span></span>, <span name="engineInstanceId">engineInstanceId: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineId">engineId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVersion">engineVersion: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVariant">engineVariant: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="env">env: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="verbose">verbose: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="debug">debug: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="jsonExtractor">jsonExtractor: <a href="JsonExtractorOption$.html#JsonExtractorOption=org.apache.predictionio.workflow.JsonExtractorOption.Value" class="extmbr" name="org.apache.predictionio.workflow.JsonExtractorOption.JsonExtractorOption">JsonExtractorOption.JsonExtractorOption</a> = <span class="symbol"><span class="name"><a href="JsonExtractorOption$.html">JsonExtractorOption.Both</a></span></span></span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.package@BatchPredictConfigextendsProductwithSerializable" title="Permalink" target="_top">
@@ -99,7 +99,7 @@
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       </span>
       <span class="symbol">
-        <a href="BindServer.html"><span class="name">BindServer</span></a><span class="params">()</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <a href="BindServer.html"><span class="name">BindServer</span></a><span class="params">()</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.package@BindServerextendsProductwithSerializable" title="Permalink" target="_top">
@@ -116,7 +116,7 @@
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       </span>
       <span class="symbol">
-        <a href="EngineServerPlugin.html"><span class="name">EngineServerPlugin</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <a href="EngineServerPlugin.html"><span class="name">EngineServerPlugin</span></a><span class="result"> extends <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.package@EngineServerPluginextendsAnyRef" title="Permalink" target="_top">
@@ -133,7 +133,7 @@
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       </span>
       <span class="symbol">
-        <a href="EngineServerPluginContext.html"><span class="name">EngineServerPluginContext</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef" class="extype" target="_top">AnyRef</a></span>
+        <a href="EngineServerPluginContext.html"><span class="name">EngineServerPluginContext</span></a><span class="result"> extends <span class="extype" name="scala.AnyRef">AnyRef</span></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.package@EngineServerPluginContextextendsAnyRef" title="Permalink" target="_top">
@@ -191,7 +191,7 @@
     </span>
       
     </li><li name="org.apache.predictionio.workflow.MasterActor" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
-      <a id="MasterActorextendsActorwithSSLConfigurationwithKeyAuthentication"></a>
+      <a id="MasterActorextendsActorwithKeyAuthenticationwithSSLConfiguration"></a>
       <a id="MasterActor:MasterActor"></a>
       <h4 class="signature">
       <span class="modifier_kind">
@@ -199,10 +199,10 @@
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       </span>
       <span class="symbol">
-        <a href="MasterActor.html"><span class="name">MasterActor</span></a><span class="result"> extends <a href="http://doc.akka.io/api/akka/2.4.17/index.html#akka.actor.Actor" class="extype" target="_top">Actor</a> with <span class="extype" name="org.apache.predictionio.configuration.SSLConfiguration">SSLConfiguration</span> with <span class="extype" name="org.apache.predictionio.authentication.KeyAuthentication">KeyAuthentication</span></span>
+        <a href="MasterActor.html"><span class="name">MasterActor</span></a><span class="result"> extends <a href="http://doc.akka.io/api/akka/2.5.17/index.html#akka.actor.Actor" class="extype" target="_top">Actor</a> with <span class="extype" name="org.apache.predictionio.authentication.KeyAuthentication">KeyAuthentication</span> with <span class="extype" name="org.apache.predictionio.configuration.SSLConfiguration">SSLConfiguration</span></span>
       </span>
       </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.workflow.package@MasterActorextendsActorwithSSLConfigurationwithKeyAuthentication" title="Permalink" target="_top">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.package@MasterActorextendsActorwithKeyAuthenticationwithSSLConfiguration" title="Permalink" target="_top">
         <img src="../../../../lib/permalink.png" alt="Permalink" />
       </a>
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@@ -216,7 +216,7 @@
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       </span>
       <span class="symbol">
-        <a href="NameParams.html"><span class="name">NameParams</span></a><span class="params">(<span name="name">name: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.json4s.JsonAST.JValue">JValue</span>]</span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <a href="NameParams.html"><span class="name">NameParams</span></a><span class="params">(<span name="name">name: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="params">params: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="org.json4s.JsonAST.JValue">JValue</span>]</span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.package@NameParamsextendsProductwithSerializable" title="Permalink" target="_top">
@@ -250,7 +250,7 @@
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       </span>
       <span class="symbol">
-        <a href="PersistentModelManifest.html"><span class="name">PersistentModelManifest</span></a><span class="params">(<span name="className">className: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <a href="PersistentModelManifest.html"><span class="name">PersistentModelManifest</span></a><span class="params">(<span name="className">className: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.package@PersistentModelManifestextendsProductwithSerializable" title="Permalink" target="_top">
@@ -267,7 +267,7 @@
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       </span>
       <span class="symbol">
-        <a href="PluginsActor.html"><span class="name">PluginsActor</span></a><span class="result"> extends <a href="http://doc.akka.io/api/akka/2.4.17/index.html#akka.actor.Actor" class="extype" target="_top">Actor</a></span>
+        <a href="PluginsActor.html"><span class="name">PluginsActor</span></a><span class="result"> extends <a href="http://doc.akka.io/api/akka/2.5.17/index.html#akka.actor.Actor" class="extype" target="_top">Actor</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.package@PluginsActorextendsActor" title="Permalink" target="_top">
@@ -275,6 +275,23 @@
       </a>
     </span>
       
+    </li><li name="org.apache.predictionio.workflow.PredictionServer" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="PredictionServer[Q,P]extendsKeyAuthentication"></a>
+      <a id="PredictionServer[Q,P]:PredictionServer[Q,P]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">class</span>
+      </span>
+      <span class="symbol">
+        <a href="PredictionServer.html"><span class="name">PredictionServer</span></a><span class="tparams">[<span name="Q">Q</span>, <span name="P">P</span>]</span><span class="result"> extends <span class="extype" name="org.apache.predictionio.authentication.KeyAuthentication">KeyAuthentication</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a href="../../../../index.html#org.apache.predictionio.workflow.package@PredictionServer[Q,P]extendsKeyAuthentication" title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      
     </li><li name="org.apache.predictionio.workflow.ReloadServer" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
       <a id="ReloadServerextendsProductwithSerializable"></a>
       <a id="ReloadServer:ReloadServer"></a>
@@ -284,7 +301,7 @@
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       </span>
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-        <a href="ReloadServer.html"><span class="name">ReloadServer</span></a><span class="params">()</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <a href="ReloadServer.html"><span class="name">ReloadServer</span></a><span class="params">()</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.package@ReloadServerextendsProductwithSerializable" title="Permalink" target="_top">
@@ -292,23 +309,6 @@
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-      <a id="ServerActor[Q,P]:ServerActor[Q,P]"></a>
-      <h4 class="signature">
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-        <span class="kind">class</span>
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-      <span class="symbol">
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-      </span>
-      </h4><span class="permalink">
-      <a href="../../../../index.html#org.apache.predictionio.workflow.package@ServerActor[Q,P]extendsActorwithHttpServicewithKeyAuthentication" title="Permalink" target="_top">
-        <img src="../../../../lib/permalink.png" alt="Permalink" />
-      </a>
-    </span>
-      
     </li><li name="org.apache.predictionio.workflow.ServerConfig" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
       <a id="ServerConfigextendsProductwithSerializable"></a>
       <a id="ServerConfig:ServerConfig"></a>
@@ -318,7 +318,7 @@
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       </span>
       <span class="symbol">
-        <a href="ServerConfig.html"><span class="name">ServerConfig</span></a><span class="params">(<span name="batch">batch: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineInstanceId">engineInstanceId: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineId">engineId: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVersion">engineVersion: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVariant">engineVariant: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="env">env: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="ip">ip: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;0.0.0.0&quot;</span></span>, <span name="port">port: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a> = <span class="symbol">8000</span></span>, <span name="feedback">feedback: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="eventServerIp">eventServerIp: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;0.0.0.0&quot;</span></span>, <span name="eventServerPort">eventServerPort: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a> = <span class="symbol">7070</span></span>, <span name="accessKey">accessKey: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="logUrl">logUrl: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="logPrefix">logPrefix: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="logFile">logFile: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="verbose">verbose: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="debug">debug: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="jsonExtractor">jsonExtractor: <a href="JsonExtractorOption$.html#JsonExtractorOption=org.apache.predictionio.workflow.JsonExtractorOption.Value" class="extmbr" name="org.apache.predictionio.workflow.JsonExtractorOption.JsonExtractorOption">JsonExtractorOption.JsonExtractorOption</a> = <span class="symbol"><span class="name"><a href="JsonExtractorOption$.html">JsonExtractorOption.Both</a></span></span></span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <a href="ServerConfig.html"><span class="name">ServerConfig</span></a><span class="params">(<span name="batch">batch: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineInstanceId">engineInstanceId: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="engineId">engineId: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVersion">engineVersion: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="engineVariant">engineVariant: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="env">env: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="ip">ip: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;0.0.0.0&quot;</span></span>, <span name="port">port: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a> = <span class="symbol">8000</span></span>, <span name="feedback">feedback: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="eventServerIp">eventServerIp: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;0.0.0.0&quot;</span></span>, <span name="eventServerPort">eventServerPort: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a> = <span class="symbol">7070</span></span>, <span name="accessKey">accessKey: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="logUrl">logUrl: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="logPrefix">logPrefix: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="logFile">logFile: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Option" class="extype" target="_top">Option</a>[<span class="extype" name="scala.Predef.String">String</span>] = <span class="symbol">None</span></span>, <span name="verbose">verbose: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="debug">debug: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="jsonExtractor">jsonExtractor: <a href="JsonExtractorOption$.html#JsonExtractorOption=org.apache.predictionio.workflow.JsonExtractorOption.Value" class="extmbr" name="org.apache.predictionio.workflow.JsonExtractorOption.JsonExtractorOption">JsonExtractorOption.JsonExtractorOption</a> = <span class="symbol"><span class="name"><a href="JsonExtractorOption$.html">JsonExtractorOption.Both</a></span></span></span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.package@ServerConfigextendsProductwithSerializable" title="Permalink" target="_top">
@@ -335,7 +335,7 @@
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       </span>
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-        <a href="StartServer.html"><span class="name">StartServer</span></a><span class="params">()</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <a href="StartServer.html"><span class="name">StartServer</span></a><span class="params">()</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.package@StartServerextendsProductwithSerializable" title="Permalink" target="_top">
@@ -352,7 +352,7 @@
         <span class="kind">case class</span>
       </span>
       <span class="symbol">
-        <a href="StopAfterPrepareInterruption.html"><span class="name">StopAfterPrepareInterruption</span></a><span class="params">()</span><span class="result"> extends <a href="WorkflowInterruption.html" class="extype" name="org.apache.predictionio.workflow.WorkflowInterruption">WorkflowInterruption</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <a href="StopAfterPrepareInterruption.html"><span class="name">StopAfterPrepareInterruption</span></a><span class="params">()</span><span class="result"> extends <a href="WorkflowInterruption.html" class="extype" name="org.apache.predictionio.workflow.WorkflowInterruption">WorkflowInterruption</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.package@StopAfterPrepareInterruptionextendsWorkflowInterruptionwithProductwithSerializable" title="Permalink" target="_top">
@@ -369,7 +369,7 @@
         <span class="kind">case class</span>
       </span>
       <span class="symbol">
-        <a href="StopAfterReadInterruption.html"><span class="name">StopAfterReadInterruption</span></a><span class="params">()</span><span class="result"> extends <a href="WorkflowInterruption.html" class="extype" name="org.apache.predictionio.workflow.WorkflowInterruption">WorkflowInterruption</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <a href="StopAfterReadInterruption.html"><span class="name">StopAfterReadInterruption</span></a><span class="params">()</span><span class="result"> extends <a href="WorkflowInterruption.html" class="extype" name="org.apache.predictionio.workflow.WorkflowInterruption">WorkflowInterruption</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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@@ -386,7 +386,7 @@
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       </span>
       <span class="symbol">
-        <a href="StopServer.html"><span class="name">StopServer</span></a><span class="params">()</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <a href="StopServer.html"><span class="name">StopServer</span></a><span class="params">()</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.package@StopServerextendsProductwithSerializable" title="Permalink" target="_top">
@@ -420,7 +420,7 @@
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       </span>
       <span class="symbol">
-        <a href="WorkflowParams.html"><span class="name">WorkflowParams</span></a><span class="params">(<span name="batch">batch: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="verbose">verbose: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int" class="extype" target="_top">Int</a> = <span class="symbol">2</span></span>, <span name="saveModel">saveModel: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">true</span></span>, <span name="sparkEnv">sparkEnv: <span class="extype" name="scala.Predef.Map">Map</span>[<span class="extype" name="scala.Predef.String">String</span>, <span class="extype" name="scala.Predef.String">String</span>] = <span class="defval" name="Map[String, String](&quot;spark.executor.extraClassPath&quot; -&gt; &quot;.&quot;)">...</span></span>, <span name="skipSanityCheck">skipSanityCheck: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="stopAfterRead">stopAfterRead: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="stopAfterPrepare">stopAfterPrepare: <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
+        <a href="WorkflowParams.html"><span class="name">WorkflowParams</span></a><span class="params">(<span name="batch">batch: <span class="extype" name="scala.Predef.String">String</span> = <span class="symbol">&quot;&quot;</span></span>, <span name="verbose">verbose: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Int" class="extype" target="_top">Int</a> = <span class="symbol">2</span></span>, <span name="saveModel">saveModel: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">true</span></span>, <span name="sparkEnv">sparkEnv: <span class="extype" name="scala.Predef.Map">Map</span>[<span class="extype" name="scala.Predef.String">String</span>, <span class="extype" name="scala.Predef.String">String</span>] = <span class="defval" name="Map[String, String](&quot;spark.executor.extraClassPath&quot; -&gt; &quot;.&quot;)">...</span></span>, <span name="skipSanityCheck">skipSanityCheck: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="stopAfterRead">stopAfterRead: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>, <span name="stopAfterPrepare">stopAfterPrepare: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Boolean" class="extype" target="_top">Boolean</a> = <span class="symbol">false</span></span>)</span><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Product" class="extype" target="_top">Product</a> with <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Serializable" class="extype" target="_top">Serializable</a></span>
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       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.package@WorkflowParamsextendsProductwithSerializable" title="Permalink" target="_top">
@@ -538,7 +538,7 @@
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       </span>
       <span class="symbol">
-        <a href="EngineLanguage$.html"><span class="name">EngineLanguage</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Enumeration" class="extype" target="_top">Enumeration</a></span>
+        <a href="EngineLanguage$.html"><span class="name">EngineLanguage</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Enumeration" class="extype" target="_top">Enumeration</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.package@EngineLanguage" title="Permalink" target="_top">
@@ -555,7 +555,7 @@
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       </span>
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-        <a href="EngineServerJson4sSupport$.html"><span class="name">EngineServerJson4sSupport</span></a><span class="result"> extends <span class="extype" name="spray.httpx.Json4sSupport">Json4sSupport</span></span>
+        <a href="EngineServerJson4sSupport$.html"><span class="name">EngineServerJson4sSupport</span></a>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.package@EngineServerJson4sSupport" title="Permalink" target="_top">
@@ -640,7 +640,7 @@
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       </span>
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-        <a href="JsonExtractorOption$.html"><span class="name">JsonExtractorOption</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Enumeration" class="extype" target="_top">Enumeration</a></span>
+        <a href="JsonExtractorOption$.html"><span class="name">JsonExtractorOption</span></a><span class="result"> extends <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Enumeration" class="extype" target="_top">Enumeration</a></span>
       </span>
       </h4><span class="permalink">
       <a href="../../../../index.html#org.apache.predictionio.workflow.package@JsonExtractorOption" title="Permalink" target="_top">
diff --git a/api/current/org/package.html b/api/current/org/package.html
index ecb718c..54becb3 100644
--- a/api/current/org/package.html
+++ b/api/current/org/package.html
@@ -1,9 +1,9 @@
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 <html>
         <head>
-          <title>org - PredictionIO Scala API 0.13.0 - org</title>
-          <meta name="description" content="org - PredictionIO Scala API 0.13.0 - org" />
-          <meta name="keywords" content="org PredictionIO Scala API 0.13.0 org" />
+          <title>org - PredictionIO Scala API 0.14.0 - org</title>
+          <meta name="description" content="org - PredictionIO Scala API 0.14.0 - org" />
+          <meta name="keywords" content="org PredictionIO Scala API 0.14.0 org" />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="../lib/template.css" media="screen" type="text/css" rel="stylesheet" />
diff --git a/api/current/package.html b/api/current/package.html
index e8b8def..6eda434 100644
--- a/api/current/package.html
+++ b/api/current/package.html
@@ -1,9 +1,9 @@
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 <html>
         <head>
-          <title>root - PredictionIO Scala API 0.13.0 - _root_</title>
-          <meta name="description" content="root - PredictionIO Scala API 0.13.0 - root " />
-          <meta name="keywords" content="root PredictionIO Scala API 0.13.0 root " />
+          <title>root - PredictionIO Scala API 0.14.0 - _root_</title>
+          <meta name="description" content="root - PredictionIO Scala API 0.14.0 - root " />
+          <meta name="keywords" content="root PredictionIO Scala API 0.14.0 root " />
           <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
           
       <link href="lib/template.css" media="screen" type="text/css" rel="stylesheet" />
diff --git a/archived/install-linux/index.html b/archived/install-linux/index.html
index fc3b104..9086d12 100644
--- a/archived/install-linux/index.html
+++ b/archived/install-linux/index.html
@@ -12,22 +12,22 @@
 5</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nb">cd</span>
 <span class="gp">$ </span><span class="nb">pwd</span>
 /home/abc
-<span class="gp">$ </span>wget http://download.prediction.io/PredictionIO-0.13.0.tar.gz
-<span class="gp">$ </span>tar zxvf PredictionIO-0.13.0.tar.gz
-</pre></td></tr></tbody></table> </div> <div class="alert-message note"><p>Download instructions above apply to previous non-Apache releases only. Once we have made an Apache release, new instructions will be provided.</p></div><h3 id='installing-dependencies' class='header-anchors'>Installing Dependencies</h3><p>Let us install dependencies inside a subdirectory of the Apache PredictionIO installation. By following this convention, you can use PredictionIO&#39;s default configuration as is.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>mkdir PredictionIO-0.13.0/vendors
+<span class="gp">$ </span>wget http://download.prediction.io/PredictionIO-0.14.0.tar.gz
+<span class="gp">$ </span>tar zxvf PredictionIO-0.14.0.tar.gz
+</pre></td></tr></tbody></table> </div> <div class="alert-message note"><p>Download instructions above apply to previous non-Apache releases only. Once we have made an Apache release, new instructions will be provided.</p></div><h3 id='installing-dependencies' class='header-anchors'>Installing Dependencies</h3><p>Let us install dependencies inside a subdirectory of the Apache PredictionIO installation. By following this convention, you can use PredictionIO&#39;s default configuration as is.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>mkdir PredictionIO-0.14.0/vendors
 </pre></td></tr></tbody></table> </div> <h4 id='spark-setup' class='header-anchors'>Spark Setup</h4> <p><a href="http://spark.apache.org">Apache Spark</a> is the default processing engine for PredictionIO. Download and extract it.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
-2</pre></td><td class="code"><pre><span class="gp">$ </span>wget http://d3kbcqa49mib13.cloudfront.net/spark-2.1.1-bin-hadoop2.6.tgz
-<span class="gp">$ </span>tar zxvfC spark-2.1.1-bin-hadoop2.6.tgz PredictionIO-0.13.0/vendors
-</pre></td></tr></tbody></table> </div> <div class="alert-message info"><p>If you decide to install Apache Spark to another location, you must edit <code>PredictionIO-0.13.0/conf/pio-env.sh</code> and change the <code>SPARK_HOME</code> variable to point to your own Apache Spark installation.</p></div><h4 id='elasticsearch-setup' class='header-anchors'>Elasticsearch Setup</h4><div class="alert-message warning"><p>You may skip this section if you are using PostgreSQL or MySQL.</p></div> <p><a href="https://www.elastic.co/">Elasticsearch</a> can be used as a storage backend for the meta data repository.</p><div class="alert-message info"><p>Starting from 0.11.0, if you build PredictionIO against Elasticsearch 5+, you may also use it as a backend for the event data repository.</p></div><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
-2</pre></td><td class="code"><pre><span class="gp">$ </span>wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.5.2.tar.gz
-<span class="gp">$ </span>tar zxvfC elasticsearch-5.5.2.tar.gz PredictionIO-0.13.0/vendors
-</pre></td></tr></tbody></table> </div> <div class="alert-message info"><p>If you decide to install Elasticsearch to another location, you must edit <code>PredictionIO-0.13.0/conf/pio-env.sh</code> and change the <code>PIO_STORAGE_SOURCES_ELASTICSEARCH_HOME</code> variable to point to your own Elasticsearch installation.</p></div><div class="alert-message info"><p>If you are using a shared network, change the <code>network.host</code> line in <code>PredictionIO-0.13.0/vendors/elasticsearch-5.5.2/config/elasticsearch.yml</code> to <code>network.host: 127.0.0.1</code> because by default, Elasticsearch looks for other machines on the network upon setup and you may run into weird errors if there are other machines that is also running Elasticsearch.</p></div><p>If you are not using the default setting at <code>localhost</code>, you may change the following in <code>PredictionIO-0.13.0/conf/pio-env.sh</code> to fit your setup.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
+2</pre></td><td class="code"><pre><span class="gp">$ </span>wget https://archive.apache.org/dist/spark/spark-2.4.0/spark-2.4.0-bin-hadoop2.7.tgz
+<span class="gp">$ </span>tar zxvfC spark-2.4.0-bin-hadoop2.7.tgz PredictionIO-0.14.0/vendors
+</pre></td></tr></tbody></table> </div> <div class="alert-message info"><p>If you decide to install Apache Spark to another location, you must edit <code>PredictionIO-0.14.0/conf/pio-env.sh</code> and change the <code>SPARK_HOME</code> variable to point to your own Apache Spark installation.</p></div><h4 id='elasticsearch-setup' class='header-anchors'>Elasticsearch Setup</h4><div class="alert-message warning"><p>You may skip this section if you are using PostgreSQL or MySQL.</p></div> <p><a href="https://www.elastic.co/">Elasticsearch</a> can be used as a storage backend for the meta data repository.</p><div class="alert-message info"><p>Starting from 0.11.0, if you build PredictionIO against Elasticsearch 5+, you may also use it as a backend for the event data repository.</p></div><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
+2</pre></td><td class="code"><pre><span class="gp">$ </span>wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.6.9.tar.gz
+<span class="gp">$ </span>tar zxvfC elasticsearch-5.6.9.tar.gz PredictionIO-0.14.0/vendors
+</pre></td></tr></tbody></table> </div> <div class="alert-message info"><p>If you decide to install Elasticsearch to another location, you must edit <code>PredictionIO-0.14.0/conf/pio-env.sh</code> and change the <code>PIO_STORAGE_SOURCES_ELASTICSEARCH_HOME</code> variable to point to your own Elasticsearch installation.</p></div><div class="alert-message info"><p>If you are using a shared network, change the <code>network.host</code> line in <code>PredictionIO-0.14.0/vendors/elasticsearch-5.6.9/config/elasticsearch.yml</code> to <code>network.host: 127.0.0.1</code> because by default, Elasticsearch looks for other machines on the network upon setup and you may run into weird errors if there are other machines that is also running Elasticsearch.</p></div><p>If you are not using the default setting at <code>localhost</code>, you may change the following in <code>PredictionIO-0.14.0/conf/pio-env.sh</code> to fit your setup.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3</pre></td><td class="code"><pre><span class="nv">PIO_STORAGE_SOURCES_ELASTICSEARCH_TYPE</span><span class="o">=</span>elasticsearch
 <span class="nv">PIO_STORAGE_SOURCES_ELASTICSEARCH_HOSTS</span><span class="o">=</span>localhost
 <span class="nv">PIO_STORAGE_SOURCES_ELASTICSEARCH_PORTS</span><span class="o">=</span>9300
-</pre></td></tr></tbody></table> </div> <h4 id='hbase-setup<a-class="anchor"-name="hbase">&nbsp;</a>' class='header-anchors' >HBase Setup<a class="anchor" name="hbase">&nbsp;</a></h4><div class="alert-message warning"><p>You may skip this section if you are using PostgreSQL or MySQL.</p></div> <p><a href="http://hbase.apache.org">HBase</a> can be used as the backend of the event data repository.</p><p>Download HBase from a <a href="http://www.apache.org/dyn/closer.cgi/hbase/1.2.6/hbase-1.2.6-bin.tar.gz">mirror</a>. Extract HBase by following the example below.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>tar zxvfC hbase-1.2.6-bin.tar.gz PredictionIO-0.13.0/vendors
-</pre></td></tr></tbody></table> </div> <div class="alert-message info"><p>If you decide to install HBase to another location, you must edit <code>PredictionIO-0.13.0/conf/pio-env.sh</code> and change the <code>PIO_STORAGE_SOURCES_HBASE_HOME</code> variable to point to your own HBase installation.</p></div><p>You will need to at least add a minimal configuration to HBase to start it in standalone mode. Details can be found <a href="http://hbase.apache.org/book/quickstart.html">here</a>. Here, we are showing a sample minimal configuration.</p><div class="alert-message info"><p>For production deployment, run a fully distributed HBase configuration.</p></div><p>Edit <code>PredictionIO-0.13.0/vendors/hbase-1.2.6/conf/hbase-site.xml</code>.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <h4 id='hbase-setup<a-class="anchor"-name="hbase">&nbsp;</a>' class='header-anchors' >HBase Setup<a class="anchor" name="hbase">&nbsp;</a></h4><div class="alert-message warning"><p>You may skip this section if you are using PostgreSQL or MySQL.</p></div> <p><a href="http://hbase.apache.org">HBase</a> can be used as the backend of the event data repository.</p><p>Download HBase from a <a href="http://www.apache.org/dyn/closer.cgi/hbase/1.2.6/hbase-1.2.6-bin.tar.gz">mirror</a>. Extract HBase by following the example below.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>tar zxvfC hbase-1.2.6-bin.tar.gz PredictionIO-0.14.0/vendors
+</pre></td></tr></tbody></table> </div> <div class="alert-message info"><p>If you decide to install HBase to another location, you must edit <code>PredictionIO-0.14.0/conf/pio-env.sh</code> and change the <code>PIO_STORAGE_SOURCES_HBASE_HOME</code> variable to point to your own HBase installation.</p></div><p>You will need to at least add a minimal configuration to HBase to start it in standalone mode. Details can be found <a href="http://hbase.apache.org/book/quickstart.html">here</a>. Here, we are showing a sample minimal configuration.</p><div class="alert-message info"><p>For production deployment, run a fully distributed HBase configuration.</p></div><p>Edit <code>PredictionIO-0.14.0/vendors/hbase-1.2.6/conf/hbase-site.xml</code>.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -39,26 +39,26 @@
 10</pre></td><td class="code"><pre>&lt;configuration&gt;
   &lt;property&gt;
     &lt;name&gt;hbase.rootdir&lt;/name&gt;
-    &lt;value&gt;file:///home/abc/PredictionIO-0.13.0/vendors/hbase-1.2.6/data&lt;/value&gt;
+    &lt;value&gt;file:///home/abc/PredictionIO-0.14.0/vendors/hbase-1.2.6/data&lt;/value&gt;
   &lt;/property&gt;
   &lt;property&gt;
     &lt;name&gt;hbase.zookeeper.property.dataDir&lt;/name&gt;
-    &lt;value&gt;/home/abc/PredictionIO-0.13.0/vendors/hbase-1.2.6/zookeeper&lt;/value&gt;
+    &lt;value&gt;/home/abc/PredictionIO-0.14.0/vendors/hbase-1.2.6/zookeeper&lt;/value&gt;
   &lt;/property&gt;
 &lt;/configuration&gt;
-</pre></td></tr></tbody></table> </div> <div class="alert-message info"><p>HBase will create <code>hbase.rootdir</code> automatically to store its data.</p></div><p>Edit <code>PredictionIO-0.13.0/vendors/hbase-1.2.6/conf/hbase-env.sh</code> to set <code>JAVA_HOME</code> for the cluster. For example:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="nb">export </span><span class="nv">JAVA_HOME</span><span class="o">=</span>/usr/lib/jvm/java-8-oracle/jre
+</pre></td></tr></tbody></table> </div> <div class="alert-message info"><p>HBase will create <code>hbase.rootdir</code> automatically to store its data.</p></div><p>Edit <code>PredictionIO-0.14.0/vendors/hbase-1.2.6/conf/hbase-env.sh</code> to set <code>JAVA_HOME</code> for the cluster. For example:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="nb">export </span><span class="nv">JAVA_HOME</span><span class="o">=</span>/usr/lib/jvm/java-8-oracle/jre
 </pre></td></tr></tbody></table> </div> <p>For Mac users, use this instead (change <code>1.8</code> to <code>1.7</code> if you have Java 7 installed):</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="nb">export </span><span class="nv">JAVA_HOME</span><span class="o">=</span><span class="sb">`</span>/usr/libexec/java_home -v 1.8<span class="sb">`</span>
 </pre></td></tr></tbody></table> </div> <p>In addition, you must set your environment variable <code>JAVA_HOME</code>. For example, in <code>/home/abc/.bashrc</code> add the following line:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="nb">export </span><span class="nv">JAVA_HOME</span><span class="o">=</span>/usr/lib/jvm/java-8-oracle
-</pre></td></tr></tbody></table> </div> <h3 id='start-predictionio-and-dependent-services' class='header-anchors'>Start PredictionIO and Dependent Services</h3><div class="alert-message warning"><p>If you are using PostgreSQL or MySQL, skip <code>pio-start-all</code> and <code>pio-stop-all</code>, and do <code>PredictionIO-0.13.0/bin/pio eventserver &amp;</code> instead.</p></div><p>Simply do <code>PredictionIO-0.13.0/bin/pio-start-all</code> and you should see something similar to the following:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <h3 id='start-predictionio-and-dependent-services' class='header-anchors'>Start PredictionIO and Dependent Services</h3><div class="alert-message warning"><p>If you are using PostgreSQL or MySQL, skip <code>pio-start-all</code> and <code>pio-stop-all</code>, and do <code>PredictionIO-0.14.0/bin/pio eventserver &amp;</code> instead.</p></div><p>Simply do <code>PredictionIO-0.14.0/bin/pio-start-all</code> and you should see something similar to the following:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
 5
 6
-7</pre></td><td class="code"><pre><span class="gp">$ </span>PredictionIO-0.13.0/bin/pio-start-all
+7</pre></td><td class="code"><pre><span class="gp">$ </span>PredictionIO-0.14.0/bin/pio-start-all
 Starting Elasticsearch...
 Starting HBase...
-starting master, logging to /home/abc/PredictionIO-0.13.0/vendors/hbase-1.2.6/bin/../logs/hbase-abc-master-yourhost.local.out
+starting master, logging to /home/abc/PredictionIO-0.14.0/vendors/hbase-1.2.6/bin/../logs/hbase-abc-master-yourhost.local.out
 Waiting 10 seconds <span class="k">for </span>HBase to fully initialize...
 Starting PredictionIO Event Server...
 <span class="err">$</span>
@@ -73,7 +73,7 @@
 15256 org.elasticsearch.bootstrap.Elasticsearch
 15469 sun.tools.jps.Jps
 <span class="err">$</span>
-</pre></td></tr></tbody></table> </div> <p>A running setup will have these up and running:</p> <ul> <li>org.apache.predictionio.tools.console.Console</li> <li>org.apache.hadoop.hbase.master.HMaster</li> <li>org.elasticsearch.bootstrap.Elasticsearch</li> </ul> <p>At any time, you can run <code>PredictionIO-0.13.0/bin/pio status</code> to check the status of the dependencies.</p><p>Now you have installed everything you need!</p> <p>You can proceed to <a href="/start/download">Choosing an Engine Template</a>, or continue the QuickStart guide of the Engine template if you have already chosen one.</p> </div></div></div></div><footer><div class="container"><div class="seperator"></div><div class="row"><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Community</h4><ul><li><a href="//predictionio.apache.org/install/" target="blank">Download</a></li><li><a href="//predictionio.apache.org/" target="blank">Docs</a></li><li><a href="//github.com/apache/predictionio" target="blank">GitHub</a></li><li><a href="mailto:user-subscribe@predictionio.apache.org" target="blank">Subscribe to User Mailing List</a></li><li><a href="//stackoverflow.com/questions/tagged/predictionio" target="blank">Stackoverflow</a></li></ul></div></div><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Contribute</h4><ul><li><a href="//predictionio.apache.org/community/contribute-code/" target="blank">Contribute</a></li><li><a href="//github.com/apache/predictionio" target="blank">Source Code</a></li><li><a href="//issues.apache.org/jira/browse/PIO" target="blank">Bug Tracker</a></li><li><a href="mailto:dev-subscribe@predictionio.apache.org" target="blank">Subscribe to Development Mailing List</a></li></ul></div></div></div><div class="row"><div class="col-md-12 footer-link-column"><p>Apache PredictionIO, PredictionIO, Apache, the Apache feather logo, and the Apache PredictionIO project logo are either registered trademarks or trademarks of The Apache Software Foundation in the United States and other countries.</p><p>All other marks mentioned may be trademarks or registered trademarks of their respective owners.</p></div></div></div><div id="footer-bottom"><div class="container"><div class="row"><div class="col-md-12"><div id="footer-logo-wrapper"><img alt="PredictionIO" src="/images/logos/logo-white-d1e9c6e6.png"/><span>®</span></div><div id="social-icons-wrapper"><a class="github-button" href="https://github.com/apache/predictionio" data-icon="octicon-star" data-show-count="true" aria-label="Star apache/predictionio on GitHub">Star</a> <a class="github-button" href="https://github.com/apache/predictionio/fork" data-icon="octicon-repo-forked" data-show-count="true" aria-label="Fork apache/predictionio on GitHub">Fork</a> <script id="github-bjs" async="" defer="" src="https://buttons.github.io/buttons.js"></script><a href="https://twitter.com/predictionio" target="blank"><img alt="PredictionIO on Twitter" src="/images/icons/twitter-ea9dc152.png"/></a> <a href="https://www.facebook.com/predictionio" target="blank"><img alt="PredictionIO on Facebook" src="/images/icons/facebook-5c57939c.png"/></a> </div></div></div></div></div></footer></div><script>(function(w,d,t,u,n,s,e){w['SwiftypeObject']=n;w[n]=w[n]||function(){
+</pre></td></tr></tbody></table> </div> <p>A running setup will have these up and running:</p> <ul> <li>org.apache.predictionio.tools.console.Console</li> <li>org.apache.hadoop.hbase.master.HMaster</li> <li>org.elasticsearch.bootstrap.Elasticsearch</li> </ul> <p>At any time, you can run <code>PredictionIO-0.14.0/bin/pio status</code> to check the status of the dependencies.</p><p>Now you have installed everything you need!</p> <p>You can proceed to <a href="/start/download">Choosing an Engine Template</a>, or continue the QuickStart guide of the Engine template if you have already chosen one.</p> </div></div></div></div><footer><div class="container"><div class="seperator"></div><div class="row"><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Community</h4><ul><li><a href="//predictionio.apache.org/install/" target="blank">Download</a></li><li><a href="//predictionio.apache.org/" target="blank">Docs</a></li><li><a href="//github.com/apache/predictionio" target="blank">GitHub</a></li><li><a href="mailto:user-subscribe@predictionio.apache.org" target="blank">Subscribe to User Mailing List</a></li><li><a href="//stackoverflow.com/questions/tagged/predictionio" target="blank">Stackoverflow</a></li></ul></div></div><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Contribute</h4><ul><li><a href="//predictionio.apache.org/community/contribute-code/" target="blank">Contribute</a></li><li><a href="//github.com/apache/predictionio" target="blank">Source Code</a></li><li><a href="//issues.apache.org/jira/browse/PIO" target="blank">Bug Tracker</a></li><li><a href="mailto:dev-subscribe@predictionio.apache.org" target="blank">Subscribe to Development Mailing List</a></li></ul></div></div></div><div class="row"><div class="col-md-12 footer-link-column"><p>Apache PredictionIO, PredictionIO, Apache, the Apache feather logo, and the Apache PredictionIO project logo are either registered trademarks or trademarks of The Apache Software Foundation in the United States and other countries.</p><p>All other marks mentioned may be trademarks or registered trademarks of their respective owners.</p></div></div></div><div id="footer-bottom"><div class="container"><div class="row"><div class="col-md-12"><div id="footer-logo-wrapper"><img alt="PredictionIO" src="/images/logos/logo-white-d1e9c6e6.png"/><span>®</span></div><div id="social-icons-wrapper"><a class="github-button" href="https://github.com/apache/predictionio" data-icon="octicon-star" data-show-count="true" aria-label="Star apache/predictionio on GitHub">Star</a> <a class="github-button" href="https://github.com/apache/predictionio/fork" data-icon="octicon-repo-forked" data-show-count="true" aria-label="Fork apache/predictionio on GitHub">Fork</a> <script id="github-bjs" async="" defer="" src="https://buttons.github.io/buttons.js"></script><a href="https://twitter.com/predictionio" target="blank"><img alt="PredictionIO on Twitter" src="/images/icons/twitter-ea9dc152.png"/></a> <a href="https://www.facebook.com/predictionio" target="blank"><img alt="PredictionIO on Facebook" src="/images/icons/facebook-5c57939c.png"/></a> </div></div></div></div></div></footer></div><script>(function(w,d,t,u,n,s,e){w['SwiftypeObject']=n;w[n]=w[n]||function(){
 (w[n].q=w[n].q||[]).push(arguments);};s=d.createElement(t);
 e=d.getElementsByTagName(t)[0];s.async=1;s.src=u;e.parentNode.insertBefore(s,e);
 })(window,document,'script','//s.swiftypecdn.com/install/v1/st.js','_st');
diff --git a/archived/install-vagrant/index.html b/archived/install-vagrant/index.html
index ce838d2..2b1163c 100644
--- a/archived/install-vagrant/index.html
+++ b/archived/install-vagrant/index.html
@@ -17,7 +17,7 @@
 10
 11</pre></td><td class="code"><pre><span class="gp">==&gt; </span>default: Installation <span class="k">done</span>!
 <span class="gp">==&gt; </span>default: --------------------------------------------------------------------------------
-<span class="gp">==&gt; </span>default: Installation of PredictionIO 0.13.0 <span class="nb">complete</span>!
+<span class="gp">==&gt; </span>default: Installation of PredictionIO 0.14.0 <span class="nb">complete</span>!
 <span class="gp">==&gt; </span>default: IMPORTANT: You still have to start PredictionIO and dependencies manually:
 <span class="gp">==&gt; </span>default: Run: <span class="s1">'pio-start-all'</span>
 <span class="gp">==&gt; </span>default: Check the status with: <span class="s1">'pio status'</span>
diff --git a/datacollection/batchimport/index.html b/datacollection/batchimport/index.html
index 9aa7fb4..4303f8c 100644
--- a/datacollection/batchimport/index.html
+++ b/datacollection/batchimport/index.html
@@ -7,7 +7,7 @@
 </span><span class="p">{</span><span class="s2">"event"</span><span class="p">:</span><span class="s2">"rate"</span><span class="p">,</span><span class="s2">"entityType"</span><span class="p">:</span><span class="s2">"user"</span><span class="p">,</span><span class="s2">"entityId"</span><span class="p">:</span><span class="s2">"3"</span><span class="p">,</span><span class="s2">"targetEntityType"</span><span class="p">:</span><span class="s2">"item"</span><span class="p">,</span><span class="s2">"targetEntityId"</span><span class="p">:</span><span class="s2">"2"</span><span class="p">,</span><span class="s2">"properties"</span><span class="p">:{</span><span class="s2">"rating"</span><span class="p">:</span><span class="mf">1.0</span><span class="p">},</span><span class="s2">"eventTime"</span><span class="p">:</span><span class="s2">"2014-11-21T01:04:14.729Z"</span><span class="p">}</span><span class="w">
 </span><span class="p">{</span><span class="s2">"event"</span><span class="p">:</span><span class="s2">"buy"</span><span class="p">,</span><span class="s2">"entityType"</span><span class="p">:</span><span class="s2">"user"</span><span class="p">,</span><span class="s2">"entityId"</span><span class="p">:</span><span class="s2">"3"</span><span class="p">,</span><span class="s2">"targetEntityType"</span><span class="p">:</span><span class="s2">"item"</span><span class="p">,</span><span class="s2">"targetEntityId"</span><span class="p">:</span><span class="s2">"7"</span><span class="p">,</span><span class="s2">"eventTime"</span><span class="p">:</span><span class="s2">"2014-11-21T01:04:14.735Z"</span><span class="p">}</span><span class="w">
 </span><span class="p">{</span><span class="s2">"event"</span><span class="p">:</span><span class="s2">"buy"</span><span class="p">,</span><span class="s2">"entityType"</span><span class="p">:</span><span class="s2">"user"</span><span class="p">,</span><span class="s2">"entityId"</span><span class="p">:</span><span class="s2">"3"</span><span class="p">,</span><span class="s2">"targetEntityType"</span><span class="p">:</span><span class="s2">"item"</span><span class="p">,</span><span class="s2">"targetEntityId"</span><span class="p">:</span><span class="s2">"8"</span><span class="p">,</span><span class="s2">"eventTime"</span><span class="p">:</span><span class="s2">"2014-11-21T01:04:14.741Z"</span><span class="p">}</span><span class="w">
-</span></pre></td></tr></tbody></table> </div> <div class="alert-message warning"><p>Please make sure your import file does not contain any empty lines. Empty lines will be treated as a null object and will return an error during import.</p></div><h2 id='use-sdk-to-prepare-batch-input-file' class='header-anchors'>Use SDK to Prepare Batch Input File</h2><p>Some of the Apache PredictionIO SDKs also provides FileExporter client. You may use them to prepare the JSON file as described above. The FileExporter creates event in the same way as EventClient except that the events are written to a JSON file instead of being sent to EventSever. The written JSON file can then be used by batch import.</p><div class="tabs"> <ul class="control"> <li data-lang="php"><a href="#tab-06509991-9e4b-46cb-97cc-10a43520c3bf">PHP SDK</a></li> <li data-lang="python"><a href="#tab-3a938f52-e6c7-47bd-926e-64af12e2c76c">Python SDK</a></li> <li data-lang="ruby"><a href="#tab-c27f393b-32ba-48a6-913a-c1e06c6a5c94">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-9f7d82c2-4668-47bc-8d90-2d6472a4f3f9">Java SDK</a></li> </ul> <div data-tab="PHP SDK" data-lang="php" id="tab-06509991-9e4b-46cb-97cc-10a43520c3bf"> (coming soon) </div> <div data-tab="Python SDK" data-lang="python" id="tab-3a938f52-e6c7-47bd-926e-64af12e2c76c"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</span></pre></td></tr></tbody></table> </div> <div class="alert-message warning"><p>Please make sure your import file does not contain any empty lines. Empty lines will be treated as a null object and will return an error during import.</p></div><h2 id='use-sdk-to-prepare-batch-input-file' class='header-anchors'>Use SDK to Prepare Batch Input File</h2><p>Some of the Apache PredictionIO SDKs also provides FileExporter client. You may use them to prepare the JSON file as described above. The FileExporter creates event in the same way as EventClient except that the events are written to a JSON file instead of being sent to EventSever. The written JSON file can then be used by batch import.</p><div class="tabs"> <ul class="control"> <li data-lang="php"><a href="#tab-fe1e41ed-90ce-453d-8cfb-4cb73814eb59">PHP SDK</a></li> <li data-lang="python"><a href="#tab-b4f93a4d-8686-4336-834d-36441f646d25">Python SDK</a></li> <li data-lang="ruby"><a href="#tab-d8f3c45c-a2c3-443d-ab78-0c3eb1ae90a8">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-c55099b2-d252-40e5-8f4a-f21f6e53c57a">Java SDK</a></li> </ul> <div data-tab="PHP SDK" data-lang="php" id="tab-fe1e41ed-90ce-453d-8cfb-4cb73814eb59"> (coming soon) </div> <div data-tab="Python SDK" data-lang="python" id="tab-b4f93a4d-8686-4336-834d-36441f646d25"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -58,7 +58,7 @@
 <span class="c"># close the FileExporter when finish writing all events</span>
 <span class="n">exporter</span><span class="o">.</span><span class="n">close</span><span class="p">()</span>
 
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-c27f393b-32ba-48a6-913a-c1e06c6a5c94"> (coming soon) </div> <div data-tab="Java SDK" data-lang="java" id="tab-9f7d82c2-4668-47bc-8d90-2d6472a4f3f9"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td> <td class="code"><pre><span class="o">(</span><span class="n">coming</span> <span class="n">soon</span><span class="o">)</span>
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-d8f3c45c-a2c3-443d-ab78-0c3eb1ae90a8"> (coming soon) </div> <div data-tab="Java SDK" data-lang="java" id="tab-c55099b2-d252-40e5-8f4a-f21f6e53c57a"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td> <td class="code"><pre><span class="o">(</span><span class="n">coming</span> <span class="n">soon</span><span class="o">)</span>
 </pre></td> </tr></tbody></table> </div> </div> </div> <h2 id='import-events-from-input-file' class='header-anchors'>Import Events from Input File</h2><p>Importing events from a file can be done easily using the command line interface. Assuming that <code>pio</code> be in your search path, your App ID be <code>123</code>, and the input file <code>my_events.json</code> be in your current working directory:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio import --appid 123 --input my_events.json
 </pre></td></tr></tbody></table> </div> <p>After a brief while, the tool should return to the console without any error. Congratulations! You have successfully imported your events.</p></div></div></div></div><footer><div class="container"><div class="seperator"></div><div class="row"><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Community</h4><ul><li><a href="//predictionio.apache.org/install/" target="blank">Download</a></li><li><a href="//predictionio.apache.org/" target="blank">Docs</a></li><li><a href="//github.com/apache/predictionio" target="blank">GitHub</a></li><li><a href="mailto:user-subscribe@predictionio.apache.org" target="blank">Subscribe to User Mailing List</a></li><li><a href="//stackoverflow.com/questions/tagged/predictionio" target="blank">Stackoverflow</a></li></ul></div></div><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Contribute</h4><ul><li><a href="//predictionio.apache.org/community/contribute-code/" target="blank">Contribute</a></li><li><a href="//github.com/apache/predictionio" target="blank">Source Code</a></li><li><a href="//issues.apache.org/jira/browse/PIO" target="blank">Bug Tracker</a></li><li><a href="mailto:dev-subscribe@predictionio.apache.org" target="blank">Subscribe to Development Mailing List</a></li></ul></div></div></div><div class="row"><div class="col-md-12 footer-link-column"><p>Apache PredictionIO, PredictionIO, Apache, the Apache feather logo, and the Apache PredictionIO project logo are either registered trademarks or trademarks of The Apache Software Foundation in the United States and other countries.</p><p>All other marks mentioned may be trademarks or registered trademarks of their respective owners.</p></div></div></div><div id="footer-bottom"><div class="container"><div class="row"><div class="col-md-12"><div id="footer-logo-wrapper"><img alt="PredictionIO" src="/images/logos/logo-white-d1e9c6e6.png"/><span>®</span></div><div id="social-icons-wrapper"><a class="github-button" href="https://github.com/apache/predictionio" data-icon="octicon-star" data-show-count="true" aria-label="Star apache/predictionio on GitHub">Star</a> <a class="github-button" href="https://github.com/apache/predictionio/fork" data-icon="octicon-repo-forked" data-show-count="true" aria-label="Fork apache/predictionio on GitHub">Fork</a> <script id="github-bjs" async="" defer="" src="https://buttons.github.io/buttons.js"></script><a href="https://twitter.com/predictionio" target="blank"><img alt="PredictionIO on Twitter" src="/images/icons/twitter-ea9dc152.png"/></a> <a href="https://www.facebook.com/predictionio" target="blank"><img alt="PredictionIO on Facebook" src="/images/icons/facebook-5c57939c.png"/></a> </div></div></div></div></div></footer></div><script>(function(w,d,t,u,n,s,e){w['SwiftypeObject']=n;w[n]=w[n]||function(){
 (w[n].q=w[n].q||[]).push(arguments);};s=d.createElement(t);
diff --git a/datacollection/channel/index.html b/datacollection/channel/index.html
index ea8b701..e1c8277 100644
--- a/datacollection/channel/index.html
+++ b/datacollection/channel/index.html
@@ -12,7 +12,7 @@
 [INFO] [App$]     Channel Name: myChannel
 [INFO] [App$]       Channel ID: 2
 [INFO] [App$]           App ID: 5
-</span></pre></td></tr></tbody></table> </div> <p>Now &quot;myChannel&quot; is created and ready for collecting data.</p><h2 id='collect-data-through-channel' class='header-anchors'>Collect data through Channel</h2><p>The Event API support optional <code>channel</code> query parameter. This allows you to import and query events of the specified channel. When the <code>channel</code> parameter is not specified, the data is collected through the default channel.</p><p>URL: <code>http://localhost:7070/events.json?accessKey=yourAccessKeyString&amp;channel=yourChannelName</code></p><p>Query parameters:</p> <table><thead> <tr> <th style="text-align: left">Field</th> <th style="text-align: left">Type</th> <th style="text-align: left">Description</th> </tr> </thead><tbody> <tr> <td style="text-align: left"><code>accessKey</code></td> <td style="text-align: left">String</td> <td style="text-align: left">The Access Key for your App</td> </tr> <tr> <td style="text-align: left"><code>channel</code></td> <td style="text-align: left">String</td> <td style="text-align: left">The channel name (optional). Specify this to import data to this channel. <strong>NOTE: supported in PIO version &gt;= 0.9.2</strong> only. Channel must be created first.</td> </tr> </tbody></table> <p>For SDK usage, one EventClient should be responsible for collecting data of one specific channel. The channel name is specified when the EventClient object is instantiated.</p><p>For example, the following code import event to &quot;YOUR_CHANNEL&quot; of the corresponding App.</p><div class="tabs"> <ul class="control"> <li data-lang="bash"><a href="#tab-0df1978f-7de9-4834-8024-576bfdf8a443">Raw HTTP</a></li> <li data-lang="php"><a href="#tab-3a5bfa53-ef14-41dc-9a93-c7286cc4de07">PHP SDK</a></li> <li data-lang="python"><a href="#tab-298b8a4b-6260-45a5-81ac-fd6052e59222">Python SDK</a></li> <li data-lang="ruby"><a href="#tab-c997bc10-98ae-4108-b366-109d90fea9e6">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-5702507c-892d-402d-bc83-8de1f5005591">Java SDK</a></li> </ul> <div data-tab="Raw HTTP" data-lang="bash" id="tab-0df1978f-7de9-4834-8024-576bfdf8a443"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</span></pre></td></tr></tbody></table> </div> <p>Now &quot;myChannel&quot; is created and ready for collecting data.</p><h2 id='collect-data-through-channel' class='header-anchors'>Collect data through Channel</h2><p>The Event API support optional <code>channel</code> query parameter. This allows you to import and query events of the specified channel. When the <code>channel</code> parameter is not specified, the data is collected through the default channel.</p><p>URL: <code>http://localhost:7070/events.json?accessKey=yourAccessKeyString&amp;channel=yourChannelName</code></p><p>Query parameters:</p> <table><thead> <tr> <th style="text-align: left">Field</th> <th style="text-align: left">Type</th> <th style="text-align: left">Description</th> </tr> </thead><tbody> <tr> <td style="text-align: left"><code>accessKey</code></td> <td style="text-align: left">String</td> <td style="text-align: left">The Access Key for your App</td> </tr> <tr> <td style="text-align: left"><code>channel</code></td> <td style="text-align: left">String</td> <td style="text-align: left">The channel name (optional). Specify this to import data to this channel. <strong>NOTE: supported in PIO version &gt;= 0.9.2</strong> only. Channel must be created first.</td> </tr> </tbody></table> <p>For SDK usage, one EventClient should be responsible for collecting data of one specific channel. The channel name is specified when the EventClient object is instantiated.</p><p>For example, the following code import event to &quot;YOUR_CHANNEL&quot; of the corresponding App.</p><div class="tabs"> <ul class="control"> <li data-lang="bash"><a href="#tab-65121e83-82bc-4d98-be2e-49e0372be9c0">Raw HTTP</a></li> <li data-lang="php"><a href="#tab-0f3808e7-d212-4222-b83d-5c1c6b8f5b48">PHP SDK</a></li> <li data-lang="python"><a href="#tab-9cca8ce6-ca6c-4c8b-b9a4-005f8fb9fd0b">Python SDK</a></li> <li data-lang="ruby"><a href="#tab-5c424768-b8fe-4424-969a-385d7a1dff6e">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-ac59a5e1-22eb-4f88-855a-0eaeeb2a8812">Java SDK</a></li> </ul> <div data-tab="Raw HTTP" data-lang="bash" id="tab-65121e83-82bc-4d98-be2e-49e0372be9c0"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -39,7 +39,7 @@
   },
   "eventTime" : "2004-12-13T21:39:45.618Z"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-3a5bfa53-ef14-41dc-9a93-c7286cc4de07"> (TODO: update me) </div> <div data-tab="Python SDK" data-lang="python" id="tab-298b8a4b-6260-45a5-81ac-fd6052e59222"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-0f3808e7-d212-4222-b83d-5c1c6b8f5b48"> (TODO: update me) </div> <div data-tab="Python SDK" data-lang="python" id="tab-9cca8ce6-ca6c-4c8b-b9a4-005f8fb9fd0b"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -80,7 +80,7 @@
     <span class="n">properties</span><span class="o">=</span><span class="n">event_properties</span><span class="p">,</span>
     <span class="n">event_time</span><span class="o">=</span><span class="n">datetime</span><span class="p">(</span><span class="mi">2014</span><span class="p">,</span> <span class="mi">12</span><span class="p">,</span> <span class="mi">13</span><span class="p">,</span> <span class="mi">21</span><span class="p">,</span> <span class="mi">38</span><span class="p">,</span> <span class="mi">45</span><span class="p">,</span> <span class="mi">618000</span><span class="p">,</span> <span class="n">pytz</span><span class="o">.</span><span class="n">utc</span><span class="p">))</span>
 
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-c997bc10-98ae-4108-b366-109d90fea9e6"> (TODO: update me) </div> <div data-tab="Java SDK" data-lang="java" id="tab-5702507c-892d-402d-bc83-8de1f5005591"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td> <td class="code"><pre><span class="o">(</span><span class="n">coming</span> <span class="n">soon</span><span class="o">)</span>
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-5c424768-b8fe-4424-969a-385d7a1dff6e"> (TODO: update me) </div> <div data-tab="Java SDK" data-lang="java" id="tab-ac59a5e1-22eb-4f88-855a-0eaeeb2a8812"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td> <td class="code"><pre><span class="o">(</span><span class="n">coming</span> <span class="n">soon</span><span class="o">)</span>
 </pre></td> </tr></tbody></table> </div> </div> </div> <p>You can also follow the EventAPI <a href="/datacollection/eventapi/#debugging-recipes">debug receipts</a> to query the events of specific channel by adding the <code>channel</code> query parameter in the URL.</p><h2 id='delete-a-channel-(including-all-imported-data)' class='header-anchors'>Delete a Channel (including all imported data)</h2><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre>pio app channel-delete &lt;app name&gt; &lt;channel name&gt;
 </pre></td></tr></tbody></table> </div> <h2 id='delete-the-data-only-of-a-channel' class='header-anchors'>Delete the data-only of a Channel</h2><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre>pio app data-delete &lt;app name&gt; --channel &lt;channel name&gt;
 </pre></td></tr></tbody></table> </div> <h2 id='accessing-channel-data-in-engine' class='header-anchors'>Accessing Channel Data in Engine</h2><p>To acccess channel data, simply specify the channel name when use the PEventStore or LEventStore API. Data is read from from the default channel if channelName is not specified.</p><p>For example, read data from default channel:</p><div class="highlight scala"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
diff --git a/datacollection/eventapi/index.html b/datacollection/eventapi/index.html
index 1f3b7e2..8fee5b8 100644
--- a/datacollection/eventapi/index.html
+++ b/datacollection/eventapi/index.html
@@ -8,7 +8,7 @@
 5
 6
 7</pre></td><td class="code"><pre>HTTP/1.1 200 OK
-Server: spray-can/1.2.1
+Server: akka-http/10.1.5
 Date: Wed, 10 Sep 2014 22:37:30 GMT
 Content-Type: application/json; <span class="nv">charset</span><span class="o">=</span>UTF-8
 Content-Length: 18
@@ -22,7 +22,7 @@
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>         Name: MyTestApp
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>           ID: 6
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>   Access Key: WPgcXKd42FPQpZHVbVeMyqF4CQJUnXQmIMTHhX3ZUrSzvy1KXJjdFUrslifa9rnB
-</pre></td></tr></tbody></table> </div> <h3 id='creating-your-first-event' class='header-anchors'>Creating Your First Event</h3><p>You may connect to the Event Server with HTTP request or by using one of many <strong>Apache PredictionIO SDKs</strong>.</p><p>For example, the following shows how one can create an event involving a single entity. Replace the value of <code>accessKey</code> by the <em>Access Key</em> generated for your App.</p><div class="tabs"> <ul class="control"> <li data-lang="bash"><a href="#tab-28031b92-cc62-4eec-bee3-8da237651f1f">Raw HTTP</a></li> <li data-lang="php"><a href="#tab-a51591b4-2241-4628-8338-bdf1b512d6f6">PHP SDK</a></li> <li data-lang="python"><a href="#tab-c2888a2c-26c0-440c-89db-bb45ecef34ed">Python SDK</a></li> <li data-lang="ruby"><a href="#tab-932c9890-8194-40a7-b8da-8adac4f75a5d">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-01529790-1970-4846-be80-1523d248852b">Java SDK</a></li> </ul> <div data-tab="Raw HTTP" data-lang="bash" id="tab-28031b92-cc62-4eec-bee3-8da237651f1f"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <h3 id='creating-your-first-event' class='header-anchors'>Creating Your First Event</h3><p>You may connect to the Event Server with HTTP request or by using one of many <strong>Apache PredictionIO SDKs</strong>.</p><p>For example, the following shows how one can create an event involving a single entity. Replace the value of <code>accessKey</code> by the <em>Access Key</em> generated for your App.</p><div class="tabs"> <ul class="control"> <li data-lang="bash"><a href="#tab-75ed5401-192f-40d0-b326-21b042f6b8d5">Raw HTTP</a></li> <li data-lang="php"><a href="#tab-46b70e81-fc1f-4ddd-b188-e09d1b4e0ebe">PHP SDK</a></li> <li data-lang="python"><a href="#tab-0214f172-0b5a-4559-86e7-5bbb7dae596c">Python SDK</a></li> <li data-lang="ruby"><a href="#tab-3b8ae743-a6b1-45d4-8628-e26e78f600f8">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-fba367a8-f6b5-4895-ac96-17ce64df2d06">Java SDK</a></li> </ul> <div data-tab="Raw HTTP" data-lang="bash" id="tab-75ed5401-192f-40d0-b326-21b042f6b8d5"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -53,7 +53,7 @@
   }
   "eventTime" : "2004-12-13T21:39:45.618-07:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-a51591b4-2241-4628-8338-bdf1b512d6f6"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-46b70e81-fc1f-4ddd-b188-e09d1b4e0ebe"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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 4
@@ -94,7 +94,7 @@
                         <span class="s1">'eventTime'</span> <span class="o">=&gt;</span> <span class="s1">'2004-12-13T21:39:45.618-07:00'</span>
                        <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-c2888a2c-26c0-440c-89db-bb45ecef34ed"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-0214f172-0b5a-4559-86e7-5bbb7dae596c"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -137,7 +137,7 @@
     <span class="n">properties</span><span class="o">=</span><span class="n">first_event_properties</span><span class="p">,</span>
     <span class="n">event_time</span><span class="o">=</span><span class="n">first_event_time</span><span class="p">,</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-932c9890-8194-40a7-b8da-8adac4f75a5d"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-3b8ae743-a6b1-45d4-8628-e26e78f600f8"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
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 4
@@ -158,8 +158,8 @@
                                             <span class="s1">'prop4'</span> <span class="o">=&gt;</span> <span class="kp">true</span><span class="p">,</span>
                                             <span class="s1">'prop5'</span> <span class="o">=&gt;</span> <span class="sx">%w(a b c)</span><span class="p">,</span>
                                             <span class="s1">'prop6'</span> <span class="o">=&gt;</span> <span class="mi">4</span><span class="o">.</span><span class="mi">56</span> <span class="p">})</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-01529790-1970-4846-be80-1523d248852b"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td> <td class="code"><pre><span class="o">(</span><span class="n">coming</span> <span class="n">soon</span><span class="o">)</span>
-</pre></td> </tr></tbody></table> </div> </div> </div> <p>For example, the following shows how one can create an event involving two entities (with <code>targetEntity</code>).</p><div class="tabs"> <ul class="control"> <li data-lang="bash"><a href="#tab-e45adeea-2ab0-40e1-9d9e-75c34f2d3f9f">Raw HTTP</a></li> <li data-lang="php"><a href="#tab-3bce1101-2959-4063-9bdb-7893f3d9bb90">PHP SDK</a></li> <li data-lang="python"><a href="#tab-4c50a8b1-1a85-409b-9633-2ece49e33659">Python SDK</a></li> <li data-lang="ruby"><a href="#tab-c70a306d-4c44-4f3e-b177-e732f45bd1d7">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-e207adff-5654-4e5f-bfb6-954f2a1ab416">Java SDK</a></li> </ul> <div data-tab="Raw HTTP" data-lang="bash" id="tab-e45adeea-2ab0-40e1-9d9e-75c34f2d3f9f"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-fba367a8-f6b5-4895-ac96-17ce64df2d06"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td> <td class="code"><pre><span class="o">(</span><span class="n">coming</span> <span class="n">soon</span><span class="o">)</span>
+</pre></td> </tr></tbody></table> </div> </div> </div> <p>For example, the following shows how one can create an event involving two entities (with <code>targetEntity</code>).</p><div class="tabs"> <ul class="control"> <li data-lang="bash"><a href="#tab-3a8aa1ce-dc32-4bf6-9b2c-ab039aa1b710">Raw HTTP</a></li> <li data-lang="php"><a href="#tab-b21adb61-9878-42d5-b135-4b0e747e564b">PHP SDK</a></li> <li data-lang="python"><a href="#tab-edcfb3fe-07fa-49fd-87fc-6dcca55e9955">Python SDK</a></li> <li data-lang="ruby"><a href="#tab-c7d03127-d5fd-4daa-b8b1-667eb74e7167">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-5f0b3cd0-f9fa-41aa-825c-60f0a5d89923">Java SDK</a></li> </ul> <div data-tab="Raw HTTP" data-lang="bash" id="tab-3a8aa1ce-dc32-4bf6-9b2c-ab039aa1b710"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -186,7 +186,7 @@
   },
   "eventTime" : "2004-12-13T21:39:45.618Z"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-3bce1101-2959-4063-9bdb-7893f3d9bb90"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-b21adb61-9878-42d5-b135-4b0e747e564b"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -221,7 +221,7 @@
                         <span class="s1">'eventTime'</span> <span class="o">=&gt;</span> <span class="s1">'2004-12-13T21:39:45.618Z'</span>
                        <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-4c50a8b1-1a85-409b-9633-2ece49e33659"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-edcfb3fe-07fa-49fd-87fc-6dcca55e9955"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -246,7 +246,7 @@
     <span class="n">target_entity_id</span><span class="o">=</span><span class="s">"iid"</span><span class="p">,</span>
     <span class="n">properties</span><span class="o">=</span><span class="n">second_event_properties</span><span class="p">,</span>
     <span class="n">event_time</span><span class="o">=</span><span class="n">datetime</span><span class="p">(</span><span class="mi">2014</span><span class="p">,</span> <span class="mi">12</span><span class="p">,</span> <span class="mi">13</span><span class="p">,</span> <span class="mi">21</span><span class="p">,</span> <span class="mi">38</span><span class="p">,</span> <span class="mi">45</span><span class="p">,</span> <span class="mi">618000</span><span class="p">,</span> <span class="n">pytz</span><span class="o">.</span><span class="n">utc</span><span class="p">))</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-c70a306d-4c44-4f3e-b177-e732f45bd1d7"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-c7d03127-d5fd-4daa-b8b1-667eb74e7167"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -263,7 +263,7 @@
                           <span class="s1">'eventTime'</span> <span class="o">=&gt;</span> <span class="s1">'2004-12-13T21:39:45.618Z'</span><span class="p">,</span>
                           <span class="s1">'properties'</span> <span class="o">=&gt;</span> <span class="p">{</span> <span class="s1">'someProperty'</span> <span class="o">=&gt;</span> <span class="s1">'value1'</span><span class="p">,</span>
                                             <span class="s1">'anotherProperty'</span> <span class="o">=&gt;</span> <span class="s1">'value2'</span> <span class="p">})</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-e207adff-5654-4e5f-bfb6-954f2a1ab416"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td> <td class="code"><pre><span class="o">(</span><span class="n">coming</span> <span class="n">soon</span><span class="o">)</span>
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-5f0b3cd0-f9fa-41aa-825c-60f0a5d89923"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td> <td class="code"><pre><span class="o">(</span><span class="n">coming</span> <span class="n">soon</span><span class="o">)</span>
 </pre></td> </tr></tbody></table> </div> </div> </div> <p>Sample response:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
@@ -271,7 +271,7 @@
 5
 6
 7</pre></td><td class="code"><pre>HTTP/1.1 201 Created
-Server: spray-can/1.2.1
+Server: akka-http/10.1.5
 Date: Wed, 10 Sep 2014 22:51:33 GMT
 Content-Type: application/json; <span class="nv">charset</span><span class="o">=</span>UTF-8
 Content-Length: 41
diff --git a/datacollection/eventmodel/index.html b/datacollection/eventmodel/index.html
index b4a7cb2..c68edfc 100644
--- a/datacollection/eventmodel/index.html
+++ b/datacollection/eventmodel/index.html
@@ -90,7 +90,7 @@
 5
 6
 7</pre></td><td class="code"><pre>HTTP/1.1 201 Created
-Server: spray-can/1.3.2
+Server: akka-http/10.1.5
 Date: Tue, 02 Jun 2015 23:13:58 GMT
 Content-Type: application/json; <span class="nv">charset</span><span class="o">=</span>UTF-8
 Content-Length: 57
@@ -266,7 +266,7 @@
 20
 21
 22</pre></td><td class="code"><pre>HTTP/1.1 200 Successful
-Server: spray-can/1.2.1
+Server: akka-http/10.1.5
 Date: Wed, 10 Sep 2014 22:51:33 GMT
 Content-Type: application/json; <span class="nv">charset</span><span class="o">=</span>UTF-8
 Content-Length: 41
diff --git a/datacollection/plugin/index.html b/datacollection/plugin/index.html
index c6438e0..15dde62 100644
--- a/datacollection/plugin/index.html
+++ b/datacollection/plugin/index.html
@@ -3,8 +3,8 @@
 3
 4</pre></td><td class="code"><pre><span class="n">name</span> <span class="o">:=</span> <span class="s">"pio-plugin-example"</span>
 <span class="n">version</span> <span class="o">:=</span> <span class="s">"1.0"</span>
-<span class="n">scalaVersion</span> <span class="o">:=</span> <span class="s">"2.11.11"</span>
-<span class="n">libraryDependencies</span> <span class="o">+=</span> <span class="s">"org.apache.predictionio"</span> <span class="o">%%</span> <span class="s">"apache-predictionio-core"</span> <span class="o">%</span> <span class="s">"0.13.0"</span>
+<span class="n">scalaVersion</span> <span class="o">:=</span> <span class="s">"2.11.12"</span>
+<span class="n">libraryDependencies</span> <span class="o">+=</span> <span class="s">"org.apache.predictionio"</span> <span class="o">%%</span> <span class="s">"apache-predictionio-core"</span> <span class="o">%</span> <span class="s">"0.14.0"</span>
 </pre></td></tr></tbody></table> </div> <p>Event server plug-ins must extend <code>EventServerPlugin</code>. Here is an example of event server plug-in:</p><div class="highlight scala"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
diff --git a/deploy/monitoring/index.html b/deploy/monitoring/index.html
index 726766f..805cd1d 100644
--- a/deploy/monitoring/index.html
+++ b/deploy/monitoring/index.html
@@ -86,7 +86,7 @@
      <span class="k">*</span><span class="p">)</span>
  <span class="k">esac
  </span><span class="nb">exit </span>0
-</pre></td></tr></tbody></table> </div> <p>There can be cases when the process is running but the engine is down however. If the spray REST API used by PredictionIO crashes, the engine process continues but the engine to fail when queried.</p><p>This sort of crash can be taken care of by using monits <code>check program</code> capability.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p>There can be cases when the process is running but the engine is down however. If the Akka HTTP REST API used by PredictionIO crashes, the engine process continues but the engine to fail when queried.</p><p>This sort of crash can be taken care of by using monits <code>check program</code> capability.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
diff --git a/deploy/plugin/index.html b/deploy/plugin/index.html
index 160ded3..9cf5a1e 100644
--- a/deploy/plugin/index.html
+++ b/deploy/plugin/index.html
@@ -3,8 +3,8 @@
 3
 4</pre></td><td class="code"><pre><span class="n">name</span> <span class="o">:=</span> <span class="s">"pio-plugin-example"</span>
 <span class="n">version</span> <span class="o">:=</span> <span class="s">"1.0"</span>
-<span class="n">scalaVersion</span> <span class="o">:=</span> <span class="s">"2.11.11"</span>
-<span class="n">libraryDependencies</span> <span class="o">+=</span> <span class="s">"org.apache.predictionio"</span> <span class="o">%%</span> <span class="s">"apache-predictionio-core"</span> <span class="o">%</span> <span class="s">"0.13.0"</span>
+<span class="n">scalaVersion</span> <span class="o">:=</span> <span class="s">"2.11.12"</span>
+<span class="n">libraryDependencies</span> <span class="o">+=</span> <span class="s">"org.apache.predictionio"</span> <span class="o">%%</span> <span class="s">"apache-predictionio-core"</span> <span class="o">%</span> <span class="s">"0.14.0"</span>
 </pre></td></tr></tbody></table> </div> <p>Engine server plug-ins must extend <code>EngineServerPlugin</code>. Here is an example of engine server plug-in:</p><div class="highlight scala"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
diff --git a/gallery/template-gallery/index.html b/gallery/template-gallery/index.html
index 064ce86..57dfb97 100644
--- a/gallery/template-gallery/index.html
+++ b/gallery/template-gallery/index.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html><head><title>Engine Template Gallery</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Engine Template Gallery"/><link rel="canonical" href="https://predictionio.apache.org/gallery/template-gallery/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script src="//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script><script src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: true });}catch(e){}</script></head><body><div id="global"><header><div class="container" id="header-wrapper"><div class="row"><div class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a href="#"></a><a href="http://predictionio.apache.org/"><img alt="Apache PredictionIO" id="logo" src="/images/logos/logo-ee2b9bb3.png"/></a><span>®</span></div><div id="menu-wrapper"><div id="pill-wrapper"><a class="pill left" href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" href="//github.com/apache/predictionio/">OPEN SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md hidden-lg" src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Browse</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final active" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Engine Template Gallery</a><span class="spacer">&gt;</span></li><li><span class="last">Browse</span></li></ul></div><div id="page-title"><h1>Engine Template Gallery</h1></div></div><div id="table-of-content-wrapper"><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/gallery/template-gallery.html.md"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Engine Template Gallery</a><span class="spacer">&gt;</span></li><li><span class="last">Browse</span></li></ul></div><div id="page-title"><h1>Engine Template Gallery</h1></div></div><div class="content"><p>Pick a tab for the type of template you are looking for. Some still need to be ported (a simple process) to Apache PIO and these are marked. Also see each Template description for special support instructions.</p><div class="tabs"> <ul class="control"> <li data-lang=""><a href="#tab-cd0adc96-8abc-430a-9462-bbd83f668263">Recommenders</a></li> <li data-lang=""><a href="#tab-4e171a95-015a-4fc8-8acb-4d8f1661c076">Classification</a></li> <li data-lang=""><a href="#tab-6fdde022-1634-4b9d-90ce-76db9844c9a9">Regression</a></li> <li data-lang=""><a href="#tab-d8e137d6-66ba-457e-be39-5e3f553122d3">NLP</a></li> <li data-lang=""><a href="#tab-9a283edd-7ba7-4231-bf0c-d4abf65adc1d">Clustering</a></li> <li data-lang=""><a href="#tab-90aec62a-c414-4084-adc0-09301b8bc9bb">Similarity</a></li> <li data-lang=""><a href="#tab-51ced22c-51f0-4e2a-941a-d0896637f648">Other</a></li> </ul> <div data-tab="Recommenders" id="tab-cd0adc96-8abc-430a-9462-bbd83f668263"> <h3><a href="https://github.com/actionml/universal-recommender">The Universal Recommender</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=actionml&amp;repo=universal-recommender&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Use for: </p> <ul class="tab-list"> <li class="tab-list-element">Personalized recommendations—user-based</li> <li class="tab-list-element">Similar items—item-based</li> <li class="tab-list-element">Viewed this bought that—item-based cross-action</li> <li class="tab-list-element">Popular Items and User-defined ranking</li> <li class="tab-list-element">Item-set recommendations for complimentarty purchases or shopping carts—item-set-based</li> <li class="tab-list-element">Hybrid collaborative filtering and content based recommendations—limited content-based</li> <li class-tab-list-element>Business rules</li> </ul> <p>The name "Universal" refers to the use of this template in virtually any case that calls for recommendations - ecommerce, news, videos, virtually anywhere user behavioral data is known. This recommender uses the new <a href="http://mahout.apache.org/users/algorithms/intro-cooccurrence-spark.html">Cross-Occurrence (CCO) algorithm</a> to auto-correlate different user actions (clickstream data), profile data, contextual information (location, device), and some content types to make better recommendations. It also implements flexible filters and boosts for implementing business rules.</p> <p>Support: <a href="https://groups.google.com/forum/#!forum/actionml-user">The Universal Recommender user group</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.10.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/apache/predictionio-template-recommender">Recommendation</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=apache&amp;repo=predictionio-template-recommender&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> An engine template is an almost-complete implementation of an engine. PredictionIO's Recommendation Engine Template has integrated Apache Spark MLlib's Collaborative Filtering algorithm by default. You can customize it easily to fit your specific needs. </p> <p>Support: <a href="http://predictionio.apache.org/support/">Apache PredictionIO mailing lists</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.11.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/apache/predictionio-template-ecom-recommender">E-Commerce Recommendation</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=apache&amp;repo=predictionio-template-ecom-recommender&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This engine template provides personalized recommendation for e-commerce applications with the following features by default: </p> <ul class="tab-list"> <li class="tab-list-element">Exclude out-of-stock items</li> <li class="tab-list-element">Provide recommendation to new users who sign up after the model is trained</li> <li class="tab-list-element">Recommend unseen items only (configurable)</li> <li class="tab-list-element">Recommend popular items if no information about the user is available (added in template version v0.4.0)</li> </ul> <p>Support: <a href="http://predictionio.apache.org/support/">Apache PredictionIO mailing lists</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.11.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/apache/predictionio-template-similar-product">Similar Product</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=apache&amp;repo=predictionio-template-similar-product&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This engine template recommends products that are "similar" to the input product(s). Similarity is not defined by user or item attributes but by users' previous actions. By default, it uses 'view' action such that product A and B are considered similar if most users who view A also view B. The template can be customized to support other action types such as buy, rate, like..etc </p> <p>Support: <a href="http://predictionio.apache.org/support/">Apache PredictionIO mailing lists</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.11.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/apache/predictionio-template-java-ecom-recommender">E-Commerce Recommendation (Java)</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=apache&amp;repo=predictionio-template-java-ecom-recommender&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This engine template provides personalized recommendation for e-commerce applications with the following features by default: </p> <ul class="tab-list"> <li class="tab-list-element">Exclude out-of-stock items</li> <li class="tab-list-element">Provide recommendation to new users who sign up after the model is trained</li> <li class="tab-list-element">Recommend unseen items only (configurable)</li> <li class="tab-list-element">Recommend popular items if no information about the user is available</li> </ul> <p>Support: <a href="http://predictionio.apache.org/support/">Apache PredictionIO mailing lists</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Java</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.11.0-incubating</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/PredictionIO/template-scala-parallel-productranking">Product Ranking</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=PredictionIO&amp;repo=template-scala-parallel-productranking&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This engine template sorts a list of products for a user based on his/her preference. This is ideal for personalizing the display order of product page, catalog, or menu items if you have large number of options. It creates engagement and early conversion by placing products that a user prefers on the top. </p> <p>Support: </p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/PredictionIO/template-scala-parallel-complementarypurchase">Complementary Purchase</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=PredictionIO&amp;repo=template-scala-parallel-complementarypurchase&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This engine template recommends the complementary items which most user frequently buy at the same time with one or more items in the query. </p> <p>Support: </p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/vaibhavist/template-scala-parallel-recommendation">Music Recommendations</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=vaibhavist&amp;repo=template-scala-parallel-recommendation&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This is very similar to music recommendations template. It is integrated with all the events a music application can have such as song played, liked, downloaded, purchased, etc. </p> <p>Support: <a href="https://github.com/vaibhavist/template-scala-parallel-recommendation/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/vngrs/template-scala-parallel-viewedthenbought">Viewed This Bought That</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=vngrs&amp;repo=template-scala-parallel-viewedthenbought&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This Engine uses co-occurrence algorithm to match viewed items to bought items. Using this engine you may predict which item the user will buy, given the item(s) browsed. </p> <p>Support: <a href="https://github.com/vngrs/template-scala-parallel-viewedthenbought/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/goliasz/pio-template-fpm">Frequent Pattern Mining</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=goliasz&amp;repo=pio-template-fpm&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Template uses FP Growth algorithm allowing to mine for frequent patterns. Template returns subsequent items together with confidence score. Sometimes used as a shopping cart recommender but has other uses. </p> <p>Support: <a href="https://github.com/goliasz/pio-template-fpm/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.5</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/ramaboo/template-scala-parallel-similarproduct-with-rating">Similar Product with Rating</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=ramaboo&amp;repo=template-scala-parallel-similarproduct-with-rating&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Similar product template with rating support! Used for the MovieLens Demo. </p> <p>Support: <a href="https://github.com/ramaboo/template-scala-parallel-similarproduct-with-rating/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>beta</td> <td>0.9.0</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/goliasz/pio-template-fpm">Frequent Pattern Mining</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=goliasz&amp;repo=pio-template-fpm&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Template uses FP Growth algorithm allowing to mine for frequent patterns. Template returns subsequent items together with confidence score. </p> <p>Support: <a href="https://github.com/goliasz/pio-template-fpm/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.5</td> <td>requires conversion</td> </tr> </table> <br> </div> <div data-tab="Classification" id="tab-4e171a95-015a-4fc8-8acb-4d8f1661c076"> <h3><a href="https://github.com/apache/predictionio-template-attribute-based-classifier">Classification</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=apache&amp;repo=predictionio-template-attribute-based-classifier&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> An engine template is an almost-complete implementation of an engine. PredictionIO's Classification Engine Template has integrated Apache Spark MLlib's Naive Bayes algorithm by default. </p> <p>Support: <a href="http://predictionio.apache.org/support/">Apache PredictionIO mailing lists</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.11.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/haricharan123/PredictionIo-lingpipe-MultiLabelClassification">Classification</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=haricharan123&amp;repo=PredictionIo-lingpipe-MultiLabelClassification&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This engine template is an almost-complete implementation of an engine meant to used with PredictionIO. This Multi-label Classification Engine Template has integrated LingPipe (http://alias-i.com/lingpipe/) algorithm by default. </p> <p>Support: </p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Java</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.9.5</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/PredictionIO/template-scala-parallel-leadscoring">Lead Scoring</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=PredictionIO&amp;repo=template-scala-parallel-leadscoring&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This engine template predicts the probability of an user will convert (conversion event by user) in the current session. </p> <p>Support: </p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/apache/predictionio-template-text-classifier">Text Classification</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=apache&amp;repo=predictionio-template-text-classifier&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Use this engine for general text classification purposes. Uses OpenNLP library for text vectorization, includes t.f.-i.d.f.-based feature transformation and reduction, and uses Spark MLLib's Multinomial Naive Bayes implementation for classification. </p> <p>Support: <a href="https://github.com/apache/predictionio-template-text-classifier/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.11.0-incubating</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/andrewwuan/PredictionIO-Churn-Prediction-H2O-Sparkling-Water">Churn Prediction - H2O Sparkling Water</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=andrewwuan&amp;repo=PredictionIO-Churn-Prediction-H2O-Sparkling-Water&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This is an engine template with Sparkling Water integration. The goal is to use Deep Learning algorithm to predict the churn rate for a phone carrier's customers. </p> <p>Support: <a href="https://github.com/andrewwuan/PredictionIO-Churn-Prediction-H2O-Sparkling-Water/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/detrevid/predictionio-template-classification-dl4j">Classification Deeplearning4j</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=detrevid&amp;repo=predictionio-template-classification-dl4j&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> A classification engine template that uses Deeplearning4j library. </p> <p>Support: <a href="https://github.com/detrevid/predictionio-template-classification-dl4j/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/EmergentOrder/template-scala-probabilistic-classifier-batch-lbfgs">Probabilistic Classifier (Logistic Regression w/ LBFGS)</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=EmergentOrder&amp;repo=template-scala-probabilistic-classifier-batch-lbfgs&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> A PredictionIO engine template using logistic regression (trained with limited-memory BFGS ) with raw (probabilistic) outputs. </p> <p>Support: <a href="https://github.com/EmergentOrder/template-scala-probabilistic-classifier-batch-lbfgs/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>MIT License</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/chrischris292/template-classification-opennlp">Document Classification with OpenNLP</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=chrischris292&amp;repo=template-classification-opennlp&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Document Classification template with OpenNLP GISModel. </p> <p>Support: <a href="https://github.com/chrischris292/template-classification-opennlp/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.0</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/harry5z/template-circuit-classification-sparkling-water">Circuit End Use Classification</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=harry5z&amp;repo=template-circuit-classification-sparkling-water&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> A classification engine template that uses machine learning models trained with sample circuit energy consumption data and end usage to predict the end use of a circuit by its energy consumption history. </p> <p>Support: <a href="https://github.com/harry5z/template-circuit-classification-sparkling-water/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.1</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/ailurus1991/GBRT_Template_PredictionIO">GBRT_Classification</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=ailurus1991&amp;repo=GBRT_Template_PredictionIO&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> The Gradient-Boosted Regression Trees(GBRT) for classification. </p> <p>Support: <a href="https://github.com/ailurus1991/GBRT_Template_PredictionIO/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/mohanaprasad1994/PredictionIO-MLlib-Decision-Trees-Template">MLlib-Decision-Trees-Template</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=mohanaprasad1994&amp;repo=PredictionIO-MLlib-Decision-Trees-Template&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> An engine template is an almost-complete implementation of an engine. This is a classification engine template which has integrated Apache Spark MLlib's Decision tree algorithm by default. </p> <p>Support: <a href="https://github.com/mohanaprasad1994/PredictionIO-MLlib-Decision-Trees-Template/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.0</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/jimmyywu/predictionio-template-classification-dl4j-multilayer-network">Classification with MultiLayerNetwork</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=jimmyywu&amp;repo=predictionio-template-classification-dl4j-multilayer-network&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This engine template integrates the MultiLayerNetwork implementation from the Deeplearning4j library into PredictionIO. In this template, we use PredictionIO to classify the widely-known IRIS flower dataset by constructing a deep-belief net. </p> <p>Support: <a href="https://github.com/jimmyywu/predictionio-template-classification-dl4j-multilayer-network/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.0</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/thomasste/template-scala-parallel-dl4j-rntn">Deeplearning4j RNTN</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=thomasste&amp;repo=template-scala-parallel-dl4j-rntn&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Recursive Neural Tensor Network algorithm is supervised learning algorithm used to predict sentiment of sentences. This template is based on deeplearning4j RNTN example: https://github.com/SkymindIO/deeplearning4j-nlp-examples/tree/master/src/main/java/org/deeplearning4j/rottentomatoes/rntn. It's goal is to show how to integrate deeplearning4j library with PredictionIO. </p> <p>Support: <a href="https://github.com/thomasste/template-scala-parallel-dl4j-rntn/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/singsanj/classifier-kafka-streaming-template">classifier-kafka-streaming-template</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=singsanj&amp;repo=classifier-kafka-streaming-template&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> The template will provide a simple integration of DASE with kafka using spark streaming capabilities in order to play around with real time notification, messages .. </p> <p>Support: <a href="https://github.com/singsanj/classifier-kafka-streaming-template/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>-</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/peoplehum/BagOfWords_SentimentAnalysis_Template">Sentiment Analysis - Bag of Words Model</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=peoplehum&amp;repo=BagOfWords_SentimentAnalysis_Template&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This sentiment analysis template uses a bag of words model. Given text, the engine will return sentiment as 1.0 (positive) or 0.0 (negative) along with scores indicating how +ve or -ve it is. </p> <p>Support: <a href="https://github.com/peoplehum/BagOfWords_SentimentAnalysis_Template/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.10.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/jpioug/predictionio-template-iris">Classification template for Iris</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=jpioug&amp;repo=predictionio-template-iris&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This is Python(PySpark) based classification example for Iris dataset. </p> <p>Support: </p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Python</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.12.0-incubating</td> <td></td> </tr> </table> <br> </div> <div data-tab="Regression" id="tab-6fdde022-1634-4b9d-90ce-76db9844c9a9"> <h3><a href="https://github.com/goliasz/pio-template-sr">Survival Regression</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=goliasz&amp;repo=pio-template-sr&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Survival regression template is based on brand new Spark 1.6 AFT (accelerated failure time) survival analysis algorithm. There are interesting applications of survival analysis like: </p> <ul class="tab-list"> <li class="tab-list-element">Business Planning : Profiling customers who has a higher survival rate and make strategy accordingly.</li> <li class="tab-list-element">Lifetime Value Prediction : Engage with customers according to their lifetime value</li> <li class="tab-list-element">Active customers : Predict when the customer will be active for the next time and take interventions accordingly. * Campaign evaluation : Monitor effect of campaign on the survival rate of customers.</li> </ul> Source: http://www.analyticsvidhya.com/blog/2014/04/survival-analysis-model-you/ <p>Support: <a href="http://www.analyticsvidhya.com/blog/2014/04/survival-analysis-model-you/">Blog post</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>beta</td> <td>0.9.5</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/BensonQiu/predictionio-template-recommendation-sparklingwater">Sparkling Water-Deep Learning Energy Forecasting</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=BensonQiu&amp;repo=predictionio-template-recommendation-sparklingwater&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This Engine Template demonstrates an energy forecasting engine. It integrates Deep Learning from the Sparkling Water library to perform energy analysis. We can query the circuit and time, and return predicted energy usage. </p> <p>Support: <a href="https://github.com/BensonQiu/predictionio-template-recommendation-sparklingwater/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/detrevid/predictionio-load-forecasting">Electric Load Forecasting</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=detrevid&amp;repo=predictionio-load-forecasting&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This is a PredictionIO engine for electric load forecasting. The engine is using linear regression with stochastic gradient descent from Spark MLlib. </p> <p>Support: <a href="https://github.com/detrevid/predictionio-load-forecasting/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/RAditi/PredictionIO-MLLib-LinReg-Template">MLLib-LinearRegression</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=RAditi&amp;repo=PredictionIO-MLLib-LinReg-Template&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This template uses the linear regression with stochastic gradient descent algorithm from MLLib to make predictions on real-valued data based on features (explanatory variables) </p> <p>Support: <a href="https://github.com/RAditi/PredictionIO-MLLib-LinReg-Template/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.1</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/mgcdanny/pio-linear-regression-bfgs">Linear Regression BFGS</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=mgcdanny&amp;repo=pio-linear-regression-bfgs&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Modeling the relationship between a dependent variable, y, and one or more explanatory variables, denoted X. </p> <p>Support: </p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>beta</td> <td>0.10.0</td> <td></td> </tr> </table> <br> <h3><a href="https://github.com/jpioug/predictionio-template-boston-house-prices">Regression template for Boston House Prices</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=jpioug&amp;repo=predictionio-template-boston-house-prices&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This is Python(PySpark) based regression example for Boston House Prices dataset. </p> <p>Support: </p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Python</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.12.0-incubating</td> <td></td> </tr> </table> <br> </div> <div data-tab="NLP" id="tab-d8e137d6-66ba-457e-be39-5e3f553122d3"> <h3><a href="https://github.com/goliasz/pio-template-text-similarity">Cstablo-template-text-similarity-classification</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=goliasz&amp;repo=pio-template-text-similarity&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Text similarity engine based on Word2Vec algorithm. Builds vectors of full documents in training phase. Finds similar documents in query phase. </p> <p>Support: <a href="https://github.com/goliasz/pio-template-text-similarity/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.5</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/rajdeepd/template-Labelling-Topics-with-wikipedia">Topic Labelling with Wikipedia</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=rajdeepd&amp;repo=template-Labelling-Topics-with-wikipedia&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This template will label topics (e.g. topic generated through LDA topic modeling) with relevant category by referring to Wikipedia as a knowledge base. </p> <p>Support: <a href="https://github.com/peoplehum/template-Labelling-Topics-with-wikipedia/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.10.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/apache/predictionio-template-text-classifier">Text Classification</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=apache&amp;repo=predictionio-template-text-classifier&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Use this engine for general text classification purposes. Uses OpenNLP library for text vectorization, includes t.f.-i.d.f.-based feature transformation and reduction, and uses Spark MLLib's Multinomial Naive Bayes implementation for classification. </p> <p>Support: <a href="https://github.com/apache/predictionio-template-text-classifier/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.11.0-incubating</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/thomasste/template-scala-parallel-dl4j-rntn">Deeplearning4j RNTN</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=thomasste&amp;repo=template-scala-parallel-dl4j-rntn&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Recursive Neural Tensor Network algorithm is supervised learning algorithm used to predict sentiment of sentences. This template is based on deeplearning4j RNTN example: https://github.com/SkymindIO/deeplearning4j-nlp-examples/tree/master/src/main/java/org/deeplearning4j/rottentomatoes/rntn. It's goal is to show how to integrate deeplearning4j library with PredictionIO. </p> <p>Support: <a href="https://github.com/thomasste/template-scala-parallel-dl4j-rntn/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/peoplehum/BagOfWords_SentimentAnalysis_Template">Sentiment Analysis - Bag of Words Model</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=peoplehum&amp;repo=BagOfWords_SentimentAnalysis_Template&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This sentiment analysis template uses a bag of words model. Given text, the engine will return sentiment as 1.0 (positive) or 0.0 (negative) along with scores indicating how +ve or -ve it is. </p> <p>Support: <a href="https://github.com/peoplehum/BagOfWords_SentimentAnalysis_Template/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.10.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/infoquestsolutions/OpenNLP-SentimentAnalysis-Template">OpenNLP Sentiment Analysis Template</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=infoquestsolutions&amp;repo=OpenNLP-SentimentAnalysis-Template&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Given a sentence, this engine will return a score between 0 and 4. This is the sentiment of the sentence. The lower the number the more negative the sentence is. It uses the OpenNLP library. </p> <p>Support: <a href="https://github.com/infoquestsolutions/OpenNLP-SentimentAnalysis-Template/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>beta</td> <td>0.10.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/pawel-n/template-scala-cml-sentiment">Sentiment analysis</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=pawel-n&amp;repo=template-scala-cml-sentiment&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This template implements various algorithms for sentiment analysis, most based on recursive neural networks (RNN) and recursive neural tensor networks (RNTN)[1]. It uses an experimental library called Composable Machine Learning (CML) and the Stanford Parser. The example data set is the Stanford Sentiment Treebank. </p> <p>Support: <a href="https://github.com/pawel-n/template-scala-cml-sentiment/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/pawel-n/template-scala-parallel-word2vec">Word2Vec</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=pawel-n&amp;repo=template-scala-parallel-word2vec&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This template integrates the Word2Vec implementation from deeplearning4j with PredictionIO. The Word2Vec algorithm takes a corpus of text and computes a vector representation for each word. These representations can be subsequently used in many natural language processing applications. </p> <p>Support: <a href="https://github.com/pawel-n/template-scala-parallel-word2vec/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.0</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/thomasste/template-scala-spark-dl4j-word2vec">Spark Deeplearning4j Word2Vec</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=thomasste&amp;repo=template-scala-spark-dl4j-word2vec&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This template shows how to integrate Deeplearnign4j spark api with PredictionIO on example of app which uses Word2Vec algorithm to predict nearest words. </p> <p>Support: <a href="https://github.com/thomasste/template-scala-spark-dl4j-word2vec/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/whhone/template-sentiment-analysis">Sentiment Analysis Template</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=whhone&amp;repo=template-sentiment-analysis&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Given a sentence, return a score between 0 and 4, indicating the sentence's sentiment. 0 being very negative, 4 being very positive, 2 being neutral. The engine uses the stanford CoreNLP library and the Scala binding `gangeli/CoreNLP-Scala` for parsing. </p> <p>Support: <a href="https://github.com/whhone/template-sentiment-analysis/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>None</td> <td>stable</td> <td>0.9.0</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/thomasste/template-scala-rnn">Recursive Neural Networks (Sentiment Analysis)</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=thomasste&amp;repo=template-scala-rnn&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Predicting sentiment of phrases with use of Recursive Neural Network algorithm and OpenNLP parser. </p> <p>Support: <a href="https://github.com/thomasste/template-scala-rnn/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/Ling-Ling/CoreNLP-Text-Classification">CoreNLP Text Classification</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=Ling-Ling&amp;repo=CoreNLP-Text-Classification&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This engine uses CoreNLP to do text analysis in order to classify the category a strings of text falls under. </p> <p>Support: <a href="https://github.com/Ling-Ling/CoreNLP-Text-Classification/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>-</td> <td>requires conversion</td> </tr> </table> <br> </div> <div data-tab="Clustering" id="tab-9a283edd-7ba7-4231-bf0c-d4abf65adc1d"> <h3><a href="https://github.com/sahiliitm/predictionio-MLlibKMeansClusteringTemplate">MLlibKMeansClustering</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=sahiliitm&amp;repo=predictionio-MLlibKMeansClusteringTemplate&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This is a template which demonstrates the use of K-Means clustering algorithm which can be deployed on a spark-cluster using prediction.io. </p> <p>Support: <a href="https://github.com/sahiliitm/predictionio-MLlibKMeansClusteringTemplate/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>-</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/EmergentOrder/template-scala-topic-model-LDA">Topc Model (LDA)</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=EmergentOrder&amp;repo=template-scala-topic-model-LDA&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> A PredictionIO engine template using Latent Dirichlet Allocation to learn a topic model from raw text </p> <p>Support: <a href="https://github.com/EmergentOrder/template-scala-topic-model-LDA/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.4</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/singsanj/KMeans-parallel-template">KMeans-Clustering-Template</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=singsanj&amp;repo=KMeans-parallel-template&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> forked from PredictionIO/template-scala-parallel-vanilla. It implements the KMeans Algorithm. Can be extended to mainstream implementation with minor changes. </p> <p>Support: <a href="https://github.com/singsanj/KMeans-parallel-template/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/rajdeepd/template-Labelling-Topics-with-wikipedia">Topic Labelling with Wikipedia</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=rajdeepd&amp;repo=template-Labelling-Topics-with-wikipedia&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This template will label topics (e.g. topic generated through LDA topic modeling) with relevant category by referring to Wikipedia as a knowledge base. </p> <p>Support: <a href="https://github.com/peoplehum/template-Labelling-Topics-with-wikipedia/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.10.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/jirotubuyaki/predictionio-template-crp-clustering">Bayesian Nonparametric Chinese Restaurant Process Clustering</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=jirotubuyaki&amp;repo=predictionio-template-crp-clustering&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Chinese restaurant process is stochastic process for statistical inference. The clustering which uses Chinese restaurant process does not need to decide the number of clusters in advance. This algorithm automatically adjusts it. </p> <p>Support: <a href="https://github.com/jirotubuyaki/predictionio-template-crp-clustering/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.10.0-incubating</td> <td>already compatible</td> </tr> </table> <br> </div> <div data-tab="Similarity" id="tab-90aec62a-c414-4084-adc0-09301b8bc9bb"> <h3><a href="https://github.com/alexice/template-scala-parallel-svd-item-similarity">Content Based SVD Item Similarity Engine</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=alexice&amp;repo=template-scala-parallel-svd-item-similarity&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Template to calculate similarity between items based on their attributes—sometimes called content-based similarity. Attributes can be either numeric or categorical in the last case it will be encoded using one-hot encoder. Algorithm uses SVD in order to reduce data dimensionality. Cosine similarity is now implemented but can be easily extended to other similarity measures. </p> <p>Support: <a href="https://groups.google.com/forum/#!forum/actionml-user">The Universal Recommender user group</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/goliasz/pio-template-text-similarity">Cstablo-template-text-similarity-classification</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=goliasz&amp;repo=pio-template-text-similarity&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Text similarity engine based on Word2Vec algorithm. Builds vectors of full documents in training phase. Finds similar documents in query phase. </p> <p>Support: <a href="https://github.com/goliasz/pio-template-text-similarity/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.5</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/ramaboo/template-scala-parallel-similarproduct-with-rating">Similar Product with Rating</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=ramaboo&amp;repo=template-scala-parallel-similarproduct-with-rating&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Similar product template with rating support! Used for the MovieLens Demo. </p> <p>Support: <a href="https://github.com/ramaboo/template-scala-parallel-similarproduct-with-rating/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>beta</td> <td>0.9.0</td> <td>requires conversion</td> </tr> </table> <br> </div> <div data-tab="Other" id="tab-51ced22c-51f0-4e2a-941a-d0896637f648"> <h3><a href="https://github.com/goliasz/pio-template-fpm">Frequent Pattern Mining</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=goliasz&amp;repo=pio-template-fpm&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Template uses FP Growth algorithm allowing to mine for frequent patterns. Template returns subsequent items together with confidence score. </p> <p>Support: <a href="https://github.com/goliasz/pio-template-fpm/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.5</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/anthill/template-decision-tree-feature-importance">template-decision-tree-feature-importance</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=anthill&amp;repo=template-decision-tree-feature-importance&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This template shows how to use spark' decision tree. It enables : - both categorical and continuous features - feature importance calculation - tree output in json - reading training data from a csv file </p> <p>Support: <a href="https://github.com/anthill/template-decision-tree-feature-importance/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.9.0</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/apache/predictionio-template-skeleton">Skeleton</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=apache&amp;repo=predictionio-template-skeleton&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Skeleton template is for developing new engine when you find other engine templates do not fit your needs. This template provides a skeleton to kick start new engine development. </p> <p>Support: <a href="http://predictionio.apache.org/support/">Apache PredictionIO mailing lists</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.11.0-incubating</td> <td>already compatible</td> </tr> </table> <br> </div> </div> </div></div></div></div><footer><div class="container"><div class="seperator"></div><div class="row"><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Community</h4><ul><li><a href="//predictionio.apache.org/install/" target="blank">Download</a></li><li><a href="//predictionio.apache.org/" target="blank">Docs</a></li><li><a href="//github.com/apache/predictionio" target="blank">GitHub</a></li><li><a href="mailto:user-subscribe@predictionio.apache.org" target="blank">Subscribe to User Mailing List</a></li><li><a href="//stackoverflow.com/questions/tagged/predictionio" target="blank">Stackoverflow</a></li></ul></div></div><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Contribute</h4><ul><li><a href="//predictionio.apache.org/community/contribute-code/" target="blank">Contribute</a></li><li><a href="//github.com/apache/predictionio" target="blank">Source Code</a></li><li><a href="//issues.apache.org/jira/browse/PIO" target="blank">Bug Tracker</a></li><li><a href="mailto:dev-subscribe@predictionio.apache.org" target="blank">Subscribe to Development Mailing List</a></li></ul></div></div></div><div class="row"><div class="col-md-12 footer-link-column"><p>Apache PredictionIO, PredictionIO, Apache, the Apache feather logo, and the Apache PredictionIO project logo are either registered trademarks or trademarks of The Apache Software Foundation in the United States and other countries.</p><p>All other marks mentioned may be trademarks or registered trademarks of their respective owners.</p></div></div></div><div id="footer-bottom"><div class="container"><div class="row"><div class="col-md-12"><div id="footer-logo-wrapper"><img alt="PredictionIO" src="/images/logos/logo-white-d1e9c6e6.png"/><span>®</span></div><div id="social-icons-wrapper"><a class="github-button" href="https://github.com/apache/predictionio" data-icon="octicon-star" data-show-count="true" aria-label="Star apache/predictionio on GitHub">Star</a> <a class="github-button" href="https://github.com/apache/predictionio/fork" data-icon="octicon-repo-forked" data-show-count="true" aria-label="Fork apache/predictionio on GitHub">Fork</a> <script id="github-bjs" async="" defer="" src="https://buttons.github.io/buttons.js"></script><a href="https://twitter.com/predictionio" target="blank"><img alt="PredictionIO on Twitter" src="/images/icons/twitter-ea9dc152.png"/></a> <a href="https://www.facebook.com/predictionio" target="blank"><img alt="PredictionIO on Facebook" src="/images/icons/facebook-5c57939c.png"/></a> </div></div></div></div></div></footer></div><script>(function(w,d,t,u,n,s,e){w['SwiftypeObject']=n;w[n]=w[n]||function(){
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id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li 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class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li 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Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final active" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" 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class="last">Browse</span></li></ul></div><div id="page-title"><h1>Engine Template Gallery</h1></div></div><div id="table-of-content-wrapper"><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/gallery/template-gallery.html.md"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Engine Template Gallery</a><span class="spacer">&gt;</span></li><li><span class="last">Browse</span></li></ul></div><div id="page-title"><h1>Engine Template Gallery</h1></div></div><div class="content"><p>Pick a tab for the type of template you are looking for. Some still need to be ported (a simple process) to Apache PIO and these are marked. Also see each Template description for special support instructions.</p><div class="tabs"> <ul class="control"> <li data-lang=""><a href="#tab-97058d8a-6a5a-496d-9d56-29baba923729">Recommenders</a></li> <li data-lang=""><a href="#tab-0aa9a6fd-6ae8-428d-988d-95b316ed8b27">Classification</a></li> <li data-lang=""><a href="#tab-dd5d47c9-a946-4127-9d33-d4afa5519c9b">Regression</a></li> <li data-lang=""><a href="#tab-8b6893af-bcd2-43e5-b60a-91b0161de78d">NLP</a></li> <li data-lang=""><a href="#tab-a0dd73b9-cd3e-4424-90dd-77b81ec24992">Clustering</a></li> <li data-lang=""><a href="#tab-3f209d1e-663d-4415-8f59-a7fb504dc66d">Similarity</a></li> <li data-lang=""><a href="#tab-8a721fe0-75eb-4302-ae41-f0e0de6354f6">Other</a></li> </ul> <div data-tab="Recommenders" id="tab-97058d8a-6a5a-496d-9d56-29baba923729"> <h3><a href="https://github.com/actionml/universal-recommender">The Universal Recommender</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=actionml&amp;repo=universal-recommender&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Use for: </p> <ul class="tab-list"> <li class="tab-list-element">Personalized recommendations—user-based</li> <li class="tab-list-element">Similar items—item-based</li> <li class="tab-list-element">Viewed this bought that—item-based cross-action</li> <li class="tab-list-element">Popular Items and User-defined ranking</li> <li class="tab-list-element">Item-set recommendations for complimentarty purchases or shopping carts—item-set-based</li> <li class="tab-list-element">Hybrid collaborative filtering and content based recommendations—limited content-based</li> <li class-tab-list-element>Business rules</li> </ul> <p>The name "Universal" refers to the use of this template in virtually any case that calls for recommendations - ecommerce, news, videos, virtually anywhere user behavioral data is known. This recommender uses the new <a href="http://mahout.apache.org/users/algorithms/intro-cooccurrence-spark.html">Cross-Occurrence (CCO) algorithm</a> to auto-correlate different user actions (clickstream data), profile data, contextual information (location, device), and some content types to make better recommendations. It also implements flexible filters and boosts for implementing business rules.</p> <p>Support: <a href="https://groups.google.com/forum/#!forum/actionml-user">The Universal Recommender user group</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.10.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/apache/predictionio-template-recommender">Recommendation</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=apache&amp;repo=predictionio-template-recommender&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> An engine template is an almost-complete implementation of an engine. PredictionIO's Recommendation Engine Template has integrated Apache Spark MLlib's Collaborative Filtering algorithm by default. You can customize it easily to fit your specific needs. </p> <p>Support: <a href="http://predictionio.apache.org/support/">Apache PredictionIO mailing lists</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.11.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/apache/predictionio-template-ecom-recommender">E-Commerce Recommendation</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=apache&amp;repo=predictionio-template-ecom-recommender&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This engine template provides personalized recommendation for e-commerce applications with the following features by default: </p> <ul class="tab-list"> <li class="tab-list-element">Exclude out-of-stock items</li> <li class="tab-list-element">Provide recommendation to new users who sign up after the model is trained</li> <li class="tab-list-element">Recommend unseen items only (configurable)</li> <li class="tab-list-element">Recommend popular items if no information about the user is available (added in template version v0.4.0)</li> </ul> <p>Support: <a href="http://predictionio.apache.org/support/">Apache PredictionIO mailing lists</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.11.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/apache/predictionio-template-similar-product">Similar Product</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=apache&amp;repo=predictionio-template-similar-product&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This engine template recommends products that are "similar" to the input product(s). Similarity is not defined by user or item attributes but by users' previous actions. By default, it uses 'view' action such that product A and B are considered similar if most users who view A also view B. The template can be customized to support other action types such as buy, rate, like..etc </p> <p>Support: <a href="http://predictionio.apache.org/support/">Apache PredictionIO mailing lists</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.11.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/apache/predictionio-template-java-ecom-recommender">E-Commerce Recommendation (Java)</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=apache&amp;repo=predictionio-template-java-ecom-recommender&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This engine template provides personalized recommendation for e-commerce applications with the following features by default: </p> <ul class="tab-list"> <li class="tab-list-element">Exclude out-of-stock items</li> <li class="tab-list-element">Provide recommendation to new users who sign up after the model is trained</li> <li class="tab-list-element">Recommend unseen items only (configurable)</li> <li class="tab-list-element">Recommend popular items if no information about the user is available</li> </ul> <p>Support: <a href="http://predictionio.apache.org/support/">Apache PredictionIO mailing lists</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Java</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.11.0-incubating</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/PredictionIO/template-scala-parallel-productranking">Product Ranking</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=PredictionIO&amp;repo=template-scala-parallel-productranking&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This engine template sorts a list of products for a user based on his/her preference. This is ideal for personalizing the display order of product page, catalog, or menu items if you have large number of options. It creates engagement and early conversion by placing products that a user prefers on the top. </p> <p>Support: </p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/PredictionIO/template-scala-parallel-complementarypurchase">Complementary Purchase</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=PredictionIO&amp;repo=template-scala-parallel-complementarypurchase&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This engine template recommends the complementary items which most user frequently buy at the same time with one or more items in the query. </p> <p>Support: </p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/vaibhavist/template-scala-parallel-recommendation">Music Recommendations</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=vaibhavist&amp;repo=template-scala-parallel-recommendation&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This is very similar to music recommendations template. It is integrated with all the events a music application can have such as song played, liked, downloaded, purchased, etc. </p> <p>Support: <a href="https://github.com/vaibhavist/template-scala-parallel-recommendation/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/vngrs/template-scala-parallel-viewedthenbought">Viewed This Bought That</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=vngrs&amp;repo=template-scala-parallel-viewedthenbought&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This Engine uses co-occurrence algorithm to match viewed items to bought items. Using this engine you may predict which item the user will buy, given the item(s) browsed. </p> <p>Support: <a href="https://github.com/vngrs/template-scala-parallel-viewedthenbought/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/goliasz/pio-template-fpm">Frequent Pattern Mining</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=goliasz&amp;repo=pio-template-fpm&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Template uses FP Growth algorithm allowing to mine for frequent patterns. Template returns subsequent items together with confidence score. Sometimes used as a shopping cart recommender but has other uses. </p> <p>Support: <a href="https://github.com/goliasz/pio-template-fpm/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.5</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/ramaboo/template-scala-parallel-similarproduct-with-rating">Similar Product with Rating</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=ramaboo&amp;repo=template-scala-parallel-similarproduct-with-rating&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Similar product template with rating support! Used for the MovieLens Demo. </p> <p>Support: <a href="https://github.com/ramaboo/template-scala-parallel-similarproduct-with-rating/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>beta</td> <td>0.9.0</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/goliasz/pio-template-fpm">Frequent Pattern Mining</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=goliasz&amp;repo=pio-template-fpm&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Template uses FP Growth algorithm allowing to mine for frequent patterns. Template returns subsequent items together with confidence score. </p> <p>Support: <a href="https://github.com/goliasz/pio-template-fpm/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.5</td> <td>requires conversion</td> </tr> </table> <br> </div> <div data-tab="Classification" id="tab-0aa9a6fd-6ae8-428d-988d-95b316ed8b27"> <h3><a href="https://github.com/apache/predictionio-template-attribute-based-classifier">Classification</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=apache&amp;repo=predictionio-template-attribute-based-classifier&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> An engine template is an almost-complete implementation of an engine. PredictionIO's Classification Engine Template has integrated Apache Spark MLlib's Naive Bayes algorithm by default. </p> <p>Support: <a href="http://predictionio.apache.org/support/">Apache PredictionIO mailing lists</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.11.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/haricharan123/PredictionIo-lingpipe-MultiLabelClassification">Classification</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=haricharan123&amp;repo=PredictionIo-lingpipe-MultiLabelClassification&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This engine template is an almost-complete implementation of an engine meant to used with PredictionIO. This Multi-label Classification Engine Template has integrated LingPipe (http://alias-i.com/lingpipe/) algorithm by default. </p> <p>Support: </p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Java</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.9.5</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/PredictionIO/template-scala-parallel-leadscoring">Lead Scoring</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=PredictionIO&amp;repo=template-scala-parallel-leadscoring&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This engine template predicts the probability of an user will convert (conversion event by user) in the current session. </p> <p>Support: </p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/apache/predictionio-template-text-classifier">Text Classification</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=apache&amp;repo=predictionio-template-text-classifier&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Use this engine for general text classification purposes. Uses OpenNLP library for text vectorization, includes t.f.-i.d.f.-based feature transformation and reduction, and uses Spark MLLib's Multinomial Naive Bayes implementation for classification. </p> <p>Support: <a href="https://github.com/apache/predictionio-template-text-classifier/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.11.0-incubating</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/andrewwuan/PredictionIO-Churn-Prediction-H2O-Sparkling-Water">Churn Prediction - H2O Sparkling Water</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=andrewwuan&amp;repo=PredictionIO-Churn-Prediction-H2O-Sparkling-Water&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This is an engine template with Sparkling Water integration. The goal is to use Deep Learning algorithm to predict the churn rate for a phone carrier's customers. </p> <p>Support: <a href="https://github.com/andrewwuan/PredictionIO-Churn-Prediction-H2O-Sparkling-Water/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/detrevid/predictionio-template-classification-dl4j">Classification Deeplearning4j</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=detrevid&amp;repo=predictionio-template-classification-dl4j&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> A classification engine template that uses Deeplearning4j library. </p> <p>Support: <a href="https://github.com/detrevid/predictionio-template-classification-dl4j/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/EmergentOrder/template-scala-probabilistic-classifier-batch-lbfgs">Probabilistic Classifier (Logistic Regression w/ LBFGS)</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=EmergentOrder&amp;repo=template-scala-probabilistic-classifier-batch-lbfgs&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> A PredictionIO engine template using logistic regression (trained with limited-memory BFGS ) with raw (probabilistic) outputs. </p> <p>Support: <a href="https://github.com/EmergentOrder/template-scala-probabilistic-classifier-batch-lbfgs/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>MIT License</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/chrischris292/template-classification-opennlp">Document Classification with OpenNLP</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=chrischris292&amp;repo=template-classification-opennlp&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Document Classification template with OpenNLP GISModel. </p> <p>Support: <a href="https://github.com/chrischris292/template-classification-opennlp/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.0</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/harry5z/template-circuit-classification-sparkling-water">Circuit End Use Classification</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=harry5z&amp;repo=template-circuit-classification-sparkling-water&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> A classification engine template that uses machine learning models trained with sample circuit energy consumption data and end usage to predict the end use of a circuit by its energy consumption history. </p> <p>Support: <a href="https://github.com/harry5z/template-circuit-classification-sparkling-water/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.1</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/ailurus1991/GBRT_Template_PredictionIO">GBRT_Classification</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=ailurus1991&amp;repo=GBRT_Template_PredictionIO&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> The Gradient-Boosted Regression Trees(GBRT) for classification. </p> <p>Support: <a href="https://github.com/ailurus1991/GBRT_Template_PredictionIO/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/mohanaprasad1994/PredictionIO-MLlib-Decision-Trees-Template">MLlib-Decision-Trees-Template</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=mohanaprasad1994&amp;repo=PredictionIO-MLlib-Decision-Trees-Template&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> An engine template is an almost-complete implementation of an engine. This is a classification engine template which has integrated Apache Spark MLlib's Decision tree algorithm by default. </p> <p>Support: <a href="https://github.com/mohanaprasad1994/PredictionIO-MLlib-Decision-Trees-Template/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.0</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/jimmyywu/predictionio-template-classification-dl4j-multilayer-network">Classification with MultiLayerNetwork</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=jimmyywu&amp;repo=predictionio-template-classification-dl4j-multilayer-network&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This engine template integrates the MultiLayerNetwork implementation from the Deeplearning4j library into PredictionIO. In this template, we use PredictionIO to classify the widely-known IRIS flower dataset by constructing a deep-belief net. </p> <p>Support: <a href="https://github.com/jimmyywu/predictionio-template-classification-dl4j-multilayer-network/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.0</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/thomasste/template-scala-parallel-dl4j-rntn">Deeplearning4j RNTN</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=thomasste&amp;repo=template-scala-parallel-dl4j-rntn&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Recursive Neural Tensor Network algorithm is supervised learning algorithm used to predict sentiment of sentences. This template is based on deeplearning4j RNTN example: https://github.com/SkymindIO/deeplearning4j-nlp-examples/tree/master/src/main/java/org/deeplearning4j/rottentomatoes/rntn. It's goal is to show how to integrate deeplearning4j library with PredictionIO. </p> <p>Support: <a href="https://github.com/thomasste/template-scala-parallel-dl4j-rntn/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/singsanj/classifier-kafka-streaming-template">classifier-kafka-streaming-template</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=singsanj&amp;repo=classifier-kafka-streaming-template&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> The template will provide a simple integration of DASE with kafka using spark streaming capabilities in order to play around with real time notification, messages .. </p> <p>Support: <a href="https://github.com/singsanj/classifier-kafka-streaming-template/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>-</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/peoplehum/BagOfWords_SentimentAnalysis_Template">Sentiment Analysis - Bag of Words Model</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=peoplehum&amp;repo=BagOfWords_SentimentAnalysis_Template&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This sentiment analysis template uses a bag of words model. Given text, the engine will return sentiment as 1.0 (positive) or 0.0 (negative) along with scores indicating how +ve or -ve it is. </p> <p>Support: <a href="https://github.com/peoplehum/BagOfWords_SentimentAnalysis_Template/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.10.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/jpioug/predictionio-template-iris">Classification template for Iris</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=jpioug&amp;repo=predictionio-template-iris&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This is Python(PySpark) based classification example for Iris dataset. </p> <p>Support: </p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Python</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.12.0-incubating</td> <td></td> </tr> </table> <br> </div> <div data-tab="Regression" id="tab-dd5d47c9-a946-4127-9d33-d4afa5519c9b"> <h3><a href="https://github.com/goliasz/pio-template-sr">Survival Regression</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=goliasz&amp;repo=pio-template-sr&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Survival regression template is based on brand new Spark 1.6 AFT (accelerated failure time) survival analysis algorithm. There are interesting applications of survival analysis like: </p> <ul class="tab-list"> <li class="tab-list-element">Business Planning : Profiling customers who has a higher survival rate and make strategy accordingly.</li> <li class="tab-list-element">Lifetime Value Prediction : Engage with customers according to their lifetime value</li> <li class="tab-list-element">Active customers : Predict when the customer will be active for the next time and take interventions accordingly. * Campaign evaluation : Monitor effect of campaign on the survival rate of customers.</li> </ul> Source: http://www.analyticsvidhya.com/blog/2014/04/survival-analysis-model-you/ <p>Support: <a href="http://www.analyticsvidhya.com/blog/2014/04/survival-analysis-model-you/">Blog post</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>beta</td> <td>0.9.5</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/BensonQiu/predictionio-template-recommendation-sparklingwater">Sparkling Water-Deep Learning Energy Forecasting</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=BensonQiu&amp;repo=predictionio-template-recommendation-sparklingwater&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This Engine Template demonstrates an energy forecasting engine. It integrates Deep Learning from the Sparkling Water library to perform energy analysis. We can query the circuit and time, and return predicted energy usage. </p> <p>Support: <a href="https://github.com/BensonQiu/predictionio-template-recommendation-sparklingwater/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/detrevid/predictionio-load-forecasting">Electric Load Forecasting</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=detrevid&amp;repo=predictionio-load-forecasting&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This is a PredictionIO engine for electric load forecasting. The engine is using linear regression with stochastic gradient descent from Spark MLlib. </p> <p>Support: <a href="https://github.com/detrevid/predictionio-load-forecasting/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/RAditi/PredictionIO-MLLib-LinReg-Template">MLLib-LinearRegression</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=RAditi&amp;repo=PredictionIO-MLLib-LinReg-Template&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This template uses the linear regression with stochastic gradient descent algorithm from MLLib to make predictions on real-valued data based on features (explanatory variables) </p> <p>Support: <a href="https://github.com/RAditi/PredictionIO-MLLib-LinReg-Template/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.1</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/mgcdanny/pio-linear-regression-bfgs">Linear Regression BFGS</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=mgcdanny&amp;repo=pio-linear-regression-bfgs&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Modeling the relationship between a dependent variable, y, and one or more explanatory variables, denoted X. </p> <p>Support: </p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>beta</td> <td>0.10.0</td> <td></td> </tr> </table> <br> <h3><a href="https://github.com/jpioug/predictionio-template-boston-house-prices">Regression template for Boston House Prices</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=jpioug&amp;repo=predictionio-template-boston-house-prices&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This is Python(PySpark) based regression example for Boston House Prices dataset. </p> <p>Support: </p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Python</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.12.0-incubating</td> <td></td> </tr> </table> <br> </div> <div data-tab="NLP" id="tab-8b6893af-bcd2-43e5-b60a-91b0161de78d"> <h3><a href="https://github.com/goliasz/pio-template-text-similarity">Cstablo-template-text-similarity-classification</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=goliasz&amp;repo=pio-template-text-similarity&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Text similarity engine based on Word2Vec algorithm. Builds vectors of full documents in training phase. Finds similar documents in query phase. </p> <p>Support: <a href="https://github.com/goliasz/pio-template-text-similarity/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.5</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/rajdeepd/template-Labelling-Topics-with-wikipedia">Topic Labelling with Wikipedia</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=rajdeepd&amp;repo=template-Labelling-Topics-with-wikipedia&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This template will label topics (e.g. topic generated through LDA topic modeling) with relevant category by referring to Wikipedia as a knowledge base. </p> <p>Support: <a href="https://github.com/peoplehum/template-Labelling-Topics-with-wikipedia/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.10.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/apache/predictionio-template-text-classifier">Text Classification</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=apache&amp;repo=predictionio-template-text-classifier&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Use this engine for general text classification purposes. Uses OpenNLP library for text vectorization, includes t.f.-i.d.f.-based feature transformation and reduction, and uses Spark MLLib's Multinomial Naive Bayes implementation for classification. </p> <p>Support: <a href="https://github.com/apache/predictionio-template-text-classifier/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.11.0-incubating</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/thomasste/template-scala-parallel-dl4j-rntn">Deeplearning4j RNTN</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=thomasste&amp;repo=template-scala-parallel-dl4j-rntn&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Recursive Neural Tensor Network algorithm is supervised learning algorithm used to predict sentiment of sentences. This template is based on deeplearning4j RNTN example: https://github.com/SkymindIO/deeplearning4j-nlp-examples/tree/master/src/main/java/org/deeplearning4j/rottentomatoes/rntn. It's goal is to show how to integrate deeplearning4j library with PredictionIO. </p> <p>Support: <a href="https://github.com/thomasste/template-scala-parallel-dl4j-rntn/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/peoplehum/BagOfWords_SentimentAnalysis_Template">Sentiment Analysis - Bag of Words Model</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=peoplehum&amp;repo=BagOfWords_SentimentAnalysis_Template&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This sentiment analysis template uses a bag of words model. Given text, the engine will return sentiment as 1.0 (positive) or 0.0 (negative) along with scores indicating how +ve or -ve it is. </p> <p>Support: <a href="https://github.com/peoplehum/BagOfWords_SentimentAnalysis_Template/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.10.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/infoquestsolutions/OpenNLP-SentimentAnalysis-Template">OpenNLP Sentiment Analysis Template</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=infoquestsolutions&amp;repo=OpenNLP-SentimentAnalysis-Template&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Given a sentence, this engine will return a score between 0 and 4. This is the sentiment of the sentence. The lower the number the more negative the sentence is. It uses the OpenNLP library. </p> <p>Support: <a href="https://github.com/infoquestsolutions/OpenNLP-SentimentAnalysis-Template/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>beta</td> <td>0.10.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/pawel-n/template-scala-cml-sentiment">Sentiment analysis</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=pawel-n&amp;repo=template-scala-cml-sentiment&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This template implements various algorithms for sentiment analysis, most based on recursive neural networks (RNN) and recursive neural tensor networks (RNTN)[1]. It uses an experimental library called Composable Machine Learning (CML) and the Stanford Parser. The example data set is the Stanford Sentiment Treebank. </p> <p>Support: <a href="https://github.com/pawel-n/template-scala-cml-sentiment/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/pawel-n/template-scala-parallel-word2vec">Word2Vec</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=pawel-n&amp;repo=template-scala-parallel-word2vec&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This template integrates the Word2Vec implementation from deeplearning4j with PredictionIO. The Word2Vec algorithm takes a corpus of text and computes a vector representation for each word. These representations can be subsequently used in many natural language processing applications. </p> <p>Support: <a href="https://github.com/pawel-n/template-scala-parallel-word2vec/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.0</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/thomasste/template-scala-spark-dl4j-word2vec">Spark Deeplearning4j Word2Vec</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=thomasste&amp;repo=template-scala-spark-dl4j-word2vec&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This template shows how to integrate Deeplearnign4j spark api with PredictionIO on example of app which uses Word2Vec algorithm to predict nearest words. </p> <p>Support: <a href="https://github.com/thomasste/template-scala-spark-dl4j-word2vec/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/whhone/template-sentiment-analysis">Sentiment Analysis Template</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=whhone&amp;repo=template-sentiment-analysis&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Given a sentence, return a score between 0 and 4, indicating the sentence's sentiment. 0 being very negative, 4 being very positive, 2 being neutral. The engine uses the stanford CoreNLP library and the Scala binding `gangeli/CoreNLP-Scala` for parsing. </p> <p>Support: <a href="https://github.com/whhone/template-sentiment-analysis/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>None</td> <td>stable</td> <td>0.9.0</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/thomasste/template-scala-rnn">Recursive Neural Networks (Sentiment Analysis)</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=thomasste&amp;repo=template-scala-rnn&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Predicting sentiment of phrases with use of Recursive Neural Network algorithm and OpenNLP parser. </p> <p>Support: <a href="https://github.com/thomasste/template-scala-rnn/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/Ling-Ling/CoreNLP-Text-Classification">CoreNLP Text Classification</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=Ling-Ling&amp;repo=CoreNLP-Text-Classification&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This engine uses CoreNLP to do text analysis in order to classify the category a strings of text falls under. </p> <p>Support: <a href="https://github.com/Ling-Ling/CoreNLP-Text-Classification/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>-</td> <td>requires conversion</td> </tr> </table> <br> </div> <div data-tab="Clustering" id="tab-a0dd73b9-cd3e-4424-90dd-77b81ec24992"> <h3><a href="https://github.com/sahiliitm/predictionio-MLlibKMeansClusteringTemplate">MLlibKMeansClustering</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=sahiliitm&amp;repo=predictionio-MLlibKMeansClusteringTemplate&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This is a template which demonstrates the use of K-Means clustering algorithm which can be deployed on a spark-cluster using prediction.io. </p> <p>Support: <a href="https://github.com/sahiliitm/predictionio-MLlibKMeansClusteringTemplate/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>-</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/EmergentOrder/template-scala-topic-model-LDA">Topc Model (LDA)</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=EmergentOrder&amp;repo=template-scala-topic-model-LDA&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> A PredictionIO engine template using Latent Dirichlet Allocation to learn a topic model from raw text </p> <p>Support: <a href="https://github.com/EmergentOrder/template-scala-topic-model-LDA/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.4</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/singsanj/KMeans-parallel-template">KMeans-Clustering-Template</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=singsanj&amp;repo=KMeans-parallel-template&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> forked from PredictionIO/template-scala-parallel-vanilla. It implements the KMeans Algorithm. Can be extended to mainstream implementation with minor changes. </p> <p>Support: <a href="https://github.com/singsanj/KMeans-parallel-template/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/rajdeepd/template-Labelling-Topics-with-wikipedia">Topic Labelling with Wikipedia</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=rajdeepd&amp;repo=template-Labelling-Topics-with-wikipedia&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This template will label topics (e.g. topic generated through LDA topic modeling) with relevant category by referring to Wikipedia as a knowledge base. </p> <p>Support: <a href="https://github.com/peoplehum/template-Labelling-Topics-with-wikipedia/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.10.0-incubating</td> <td>already compatible</td> </tr> </table> <br> <h3><a href="https://github.com/jirotubuyaki/predictionio-template-crp-clustering">Bayesian Nonparametric Chinese Restaurant Process Clustering</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=jirotubuyaki&amp;repo=predictionio-template-crp-clustering&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Chinese restaurant process is stochastic process for statistical inference. The clustering which uses Chinese restaurant process does not need to decide the number of clusters in advance. This algorithm automatically adjusts it. </p> <p>Support: <a href="https://github.com/jirotubuyaki/predictionio-template-crp-clustering/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.10.0-incubating</td> <td>already compatible</td> </tr> </table> <br> </div> <div data-tab="Similarity" id="tab-3f209d1e-663d-4415-8f59-a7fb504dc66d"> <h3><a href="https://github.com/alexice/template-scala-parallel-svd-item-similarity">Content Based SVD Item Similarity Engine</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=alexice&amp;repo=template-scala-parallel-svd-item-similarity&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Template to calculate similarity between items based on their attributes—sometimes called content-based similarity. Attributes can be either numeric or categorical in the last case it will be encoded using one-hot encoder. Algorithm uses SVD in order to reduce data dimensionality. Cosine similarity is now implemented but can be easily extended to other similarity measures. </p> <p>Support: <a href="https://groups.google.com/forum/#!forum/actionml-user">The Universal Recommender user group</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.2</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/goliasz/pio-template-text-similarity">Cstablo-template-text-similarity-classification</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=goliasz&amp;repo=pio-template-text-similarity&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Text similarity engine based on Word2Vec algorithm. Builds vectors of full documents in training phase. Finds similar documents in query phase. </p> <p>Support: <a href="https://github.com/goliasz/pio-template-text-similarity/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.5</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/ramaboo/template-scala-parallel-similarproduct-with-rating">Similar Product with Rating</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=ramaboo&amp;repo=template-scala-parallel-similarproduct-with-rating&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Similar product template with rating support! Used for the MovieLens Demo. </p> <p>Support: <a href="https://github.com/ramaboo/template-scala-parallel-similarproduct-with-rating/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>beta</td> <td>0.9.0</td> <td>requires conversion</td> </tr> </table> <br> </div> <div data-tab="Other" id="tab-8a721fe0-75eb-4302-ae41-f0e0de6354f6"> <h3><a href="https://github.com/goliasz/pio-template-fpm">Frequent Pattern Mining</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=goliasz&amp;repo=pio-template-fpm&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Template uses FP Growth algorithm allowing to mine for frequent patterns. Template returns subsequent items together with confidence score. </p> <p>Support: <a href="https://github.com/goliasz/pio-template-fpm/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>alpha</td> <td>0.9.5</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/anthill/template-decision-tree-feature-importance">template-decision-tree-feature-importance</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=anthill&amp;repo=template-decision-tree-feature-importance&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> This template shows how to use spark' decision tree. It enables : - both categorical and continuous features - feature importance calculation - tree output in json - reading training data from a csv file </p> <p>Support: <a href="https://github.com/anthill/template-decision-tree-feature-importance/issues">Github issues</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.9.0</td> <td>requires conversion</td> </tr> </table> <br> <h3><a href="https://github.com/apache/predictionio-template-skeleton">Skeleton</a></h3> <iframe src="https://ghbtns.com/github-btn.html?user=apache&amp;repo=predictionio-template-skeleton&amp;type=star&amp;count=true" frameborder="0" align="middle" scrolling="0" width="170px" height="20px"></iframe> <p> Skeleton template is for developing new engine when you find other engine templates do not fit your needs. This template provides a skeleton to kick start new engine development. </p> <p>Support: <a href="http://predictionio.apache.org/support/">Apache PredictionIO mailing lists</a></p> <br> <table> <tr> <th>Type</th> <th>Language</th> <th>License</th> <th>Status</th> <th>PIO min version</th> <th>Apache PIO Convesion Required</th> </tr> <tr> <td>Parallel</td> <td>Scala</td> <td>Apache Licence 2.0</td> <td>stable</td> <td>0.11.0-incubating</td> <td>already compatible</td> </tr> </table> <br> </div> </div> </div></div></div></div><footer><div class="container"><div class="seperator"></div><div class="row"><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Community</h4><ul><li><a href="//predictionio.apache.org/install/" target="blank">Download</a></li><li><a href="//predictionio.apache.org/" target="blank">Docs</a></li><li><a href="//github.com/apache/predictionio" target="blank">GitHub</a></li><li><a href="mailto:user-subscribe@predictionio.apache.org" target="blank">Subscribe to User Mailing List</a></li><li><a href="//stackoverflow.com/questions/tagged/predictionio" target="blank">Stackoverflow</a></li></ul></div></div><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Contribute</h4><ul><li><a href="//predictionio.apache.org/community/contribute-code/" target="blank">Contribute</a></li><li><a href="//github.com/apache/predictionio" target="blank">Source Code</a></li><li><a href="//issues.apache.org/jira/browse/PIO" target="blank">Bug Tracker</a></li><li><a href="mailto:dev-subscribe@predictionio.apache.org" target="blank">Subscribe to Development Mailing List</a></li></ul></div></div></div><div class="row"><div class="col-md-12 footer-link-column"><p>Apache PredictionIO, PredictionIO, Apache, the Apache feather logo, and the Apache PredictionIO project logo are either registered trademarks or trademarks of The Apache Software Foundation in the United States and other countries.</p><p>All other marks mentioned may be trademarks or registered trademarks of their respective owners.</p></div></div></div><div id="footer-bottom"><div class="container"><div class="row"><div class="col-md-12"><div id="footer-logo-wrapper"><img alt="PredictionIO" src="/images/logos/logo-white-d1e9c6e6.png"/><span>®</span></div><div id="social-icons-wrapper"><a class="github-button" href="https://github.com/apache/predictionio" data-icon="octicon-star" data-show-count="true" aria-label="Star apache/predictionio on GitHub">Star</a> <a class="github-button" href="https://github.com/apache/predictionio/fork" data-icon="octicon-repo-forked" data-show-count="true" aria-label="Fork apache/predictionio on GitHub">Fork</a> <script id="github-bjs" async="" defer="" src="https://buttons.github.io/buttons.js"></script><a href="https://twitter.com/predictionio" target="blank"><img alt="PredictionIO on Twitter" src="/images/icons/twitter-ea9dc152.png"/></a> <a href="https://www.facebook.com/predictionio" target="blank"><img alt="PredictionIO on Facebook" src="/images/icons/facebook-5c57939c.png"/></a> </div></div></div></div></div></footer></div><script>(function(w,d,t,u,n,s,e){w['SwiftypeObject']=n;w[n]=w[n]||function(){
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Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute 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hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><span class="last">Apache PredictionIO® Documentation</span></li></ul></div><div id="page-title"><h1>Welcome to Apache PredictionIO®!</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#what-is-apache-predictionio">What is Apache PredictionIO®?</a> </li> <li> <a href="#release-notes">Release Notes</a> </li> <li> <a href="#licensing">Licensing</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/index.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><span class="last">Apache PredictionIO® Documentation</span></li></ul></div><div id="page-title"><h1>Welcome to Apache PredictionIO®!</h1></div></div><div class="content"> <h2 id='what-is-apache-predictionio®?' class='header-anchors'>What is Apache PredictionIO®?</h2><p>Apache PredictionIO® is an <strong>open source Machine Learning Server</strong> built on top of a state-of-the-art open source stack for developers and data scientists to create predictive engines for any machine learning task. It lets you:</p> <ul> <li>quickly build and deploy an engine as a web service on production with <a href="/gallery/template-gallery">customizable templates</a>;</li> <li>respond to dynamic queries in <strong>real-time</strong> once deployed as a web service;</li> <li>evaluate and tune multiple engine variants systematically;</li> <li>unify data from multiple platforms in batch or in real-time for comprehensive predictive analytics;</li> <li>speed up machine learning modeling with systematic processes and pre-built evaluation measures;</li> <li>support machine learning and data processing libraries such as Spark MLLib and OpenNLP;</li> <li>implement your own machine learning models and seamlessly incorporate them into your engine;</li> <li>simplify data infrastructure management.</li> </ul> <p>Apache PredictionIO® can be <a href="/install/">installed</a> as a full machine learning stack, bundled with <strong>Apache Spark</strong>, <strong>MLlib</strong>, <strong>HBase</strong>, <strong>Spray</strong> and <strong>Elasticsearch</strong>, which simplifies and accelerates scalable machine learning infrastructure management.</p> <table><thead> <tr> <th>Getting Started</th> <th>Developer Guides</th> <th>Machine Learning Education and Usage</th> <th>PredictionIO SDKs</th> </tr> </thead><tbody> <tr> <td><a href="/start/">Quick Intro</a></td> <td><a href="/system/">System Architecture</a></td> <td><a href="/demo/tapster/">Demo: Recommending Comics</a></td> <td><a href="/sdk/java/">Java</a></td> </tr> <tr> <td><a href="/install/">Installation Guide</a></td> <td><a href="/datacollection/">Event Server Overview</a></td> <td><a href="/demo/textclassification/">Text Classification</a></td> <td><a href="/sdk/php/">PHP</a></td> </tr> <tr> <td><a href="/start/download/">Downloading Template</a></td> <td><a href="/datacollection/eventapi/">Collecting Data</a></td> <td><a href="/community/projects/#demos">Community Contributed Demo</a></td> <td><a href="/sdk/python/">Python</a></td> </tr> <tr> <td><a href="/start/deploy/">Deploying an Engine</a></td> <td><a href="/customize/">Learning DASE</a></td> <td><a href="/machinelearning/dimensionalityreduction/">Dimensionality Reduction</a></td> <td><a href="/sdk/ruby/">Ruby</a></td> </tr> <tr> <td><a href="/start/customize/">Customizing an Engine</a></td> <td><a href="/customize/dase/">Implementing DASE</a></td> <td></td> <td><a href="/community/projects/#sdks">Community Contributed</a></td> </tr> <tr> <td><a href="/appintegration/">App Integration Overview</a></td> <td><a href="/evaluation/">Evaluation Overview</a></td> <td></td> <td></td> </tr> <tr> <td></td> <td><a href="/resources/intellij/">Intellij IDEA Guide</a></td> <td></td> <td></td> </tr> <tr> <td></td> <td><a href="/api/current/#package">Scala API</a></td> <td></td> <td></td> </tr> </tbody></table> <h2 id='release-notes' class='header-anchors'>Release Notes</h2><p>A summary of changes in each release can be found <a href="https://github.com/apache/predictionio/blob/livedoc/RELEASE.md">here</a>.</p><h2 id='licensing' class='header-anchors'>Licensing</h2><p>Apache PredictionIO® is licensed under the Apache License, Version 2.0. See <a href="https://github.com/apache/predictionio/blob/master/LICENSE.txt">LICENSE</a> for the full license text.</p></div></div></div></div><footer><div class="container"><div class="seperator"></div><div class="row"><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Community</h4><ul><li><a href="//predictionio.apache.org/install/" target="blank">Download</a></li><li><a href="//predictionio.apache.org/" target="blank">Docs</a></li><li><a href="//github.com/apache/predictionio" target="blank">GitHub</a></li><li><a href="mailto:user-subscribe@predictionio.apache.org" target="blank">Subscribe to User Mailing List</a></li><li><a href="//stackoverflow.com/questions/tagged/predictionio" target="blank">Stackoverflow</a></li></ul></div></div><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Contribute</h4><ul><li><a href="//predictionio.apache.org/community/contribute-code/" target="blank">Contribute</a></li><li><a href="//github.com/apache/predictionio" target="blank">Source Code</a></li><li><a href="//issues.apache.org/jira/browse/PIO" target="blank">Bug Tracker</a></li><li><a href="mailto:dev-subscribe@predictionio.apache.org" target="blank">Subscribe to Development Mailing List</a></li></ul></div></div></div><div class="row"><div class="col-md-12 footer-link-column"><p>Apache PredictionIO, PredictionIO, Apache, the Apache feather logo, and the Apache PredictionIO project logo are either registered trademarks or trademarks of The Apache Software Foundation in the United States and other countries.</p><p>All other marks mentioned may be trademarks or registered trademarks of their respective owners.</p></div></div></div><div id="footer-bottom"><div class="container"><div class="row"><div class="col-md-12"><div id="footer-logo-wrapper"><img alt="PredictionIO" src="/images/logos/logo-white-d1e9c6e6.png"/><span>®</span></div><div id="social-icons-wrapper"><a class="github-button" href="https://github.com/apache/predictionio" data-icon="octicon-star" data-show-count="true" aria-label="Star apache/predictionio on GitHub">Star</a> <a class="github-button" href="https://github.com/apache/predictionio/fork" data-icon="octicon-repo-forked" data-show-count="true" aria-label="Fork apache/predictionio on GitHub">Fork</a> <script id="github-bjs" async="" defer="" src="https://buttons.github.io/buttons.js"></script><a href="https://twitter.com/predictionio" target="blank"><img alt="PredictionIO on Twitter" src="/images/icons/twitter-ea9dc152.png"/></a> <a href="https://www.facebook.com/predictionio" target="blank"><img alt="PredictionIO on Facebook" src="/images/icons/facebook-5c57939c.png"/></a> </div></div></div></div></div></footer></div><script>(function(w,d,t,u,n,s,e){w['SwiftypeObject']=n;w[n]=w[n]||function(){
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Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute 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hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><span class="last">Apache PredictionIO® Documentation</span></li></ul></div><div id="page-title"><h1>Welcome to Apache PredictionIO®!</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#what-is-apache-predictionio">What is Apache PredictionIO®?</a> </li> <li> <a href="#release-notes">Release Notes</a> </li> <li> <a href="#licensing">Licensing</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/index.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><span class="last">Apache PredictionIO® Documentation</span></li></ul></div><div id="page-title"><h1>Welcome to Apache PredictionIO®!</h1></div></div><div class="content"> <h2 id='what-is-apache-predictionio®?' class='header-anchors'>What is Apache PredictionIO®?</h2><p>Apache PredictionIO® is an <strong>open source Machine Learning Server</strong> built on top of a state-of-the-art open source stack for developers and data scientists to create predictive engines for any machine learning task. It lets you:</p> <ul> <li>quickly build and deploy an engine as a web service on production with <a href="/gallery/template-gallery">customizable templates</a>;</li> <li>respond to dynamic queries in <strong>real-time</strong> once deployed as a web service;</li> <li>evaluate and tune multiple engine variants systematically;</li> <li>unify data from multiple platforms in batch or in real-time for comprehensive predictive analytics;</li> <li>speed up machine learning modeling with systematic processes and pre-built evaluation measures;</li> <li>support machine learning and data processing libraries such as Spark MLLib and OpenNLP;</li> <li>implement your own machine learning models and seamlessly incorporate them into your engine;</li> <li>simplify data infrastructure management.</li> </ul> <p>Apache PredictionIO® can be <a href="/install/">installed</a> as a full machine learning stack, bundled with <strong>Apache Spark</strong>, <strong>MLlib</strong>, <strong>HBase</strong>, <strong>Akka HTTP</strong> and <strong>Elasticsearch</strong>, which simplifies and accelerates scalable machine learning infrastructure management.</p> <table><thead> <tr> <th>Getting Started</th> <th>Developer Guides</th> <th>Machine Learning Education and Usage</th> <th>PredictionIO SDKs</th> </tr> </thead><tbody> <tr> <td><a href="/start/">Quick Intro</a></td> <td><a href="/system/">System Architecture</a></td> <td><a href="/demo/tapster/">Demo: Recommending Comics</a></td> <td><a href="/sdk/java/">Java</a></td> </tr> <tr> <td><a href="/install/">Installation Guide</a></td> <td><a href="/datacollection/">Event Server Overview</a></td> <td><a href="/demo/textclassification/">Text Classification</a></td> <td><a href="/sdk/php/">PHP</a></td> </tr> <tr> <td><a href="/start/download/">Downloading Template</a></td> <td><a href="/datacollection/eventapi/">Collecting Data</a></td> <td><a href="/community/projects/#demos">Community Contributed Demo</a></td> <td><a href="/sdk/python/">Python</a></td> </tr> <tr> <td><a href="/start/deploy/">Deploying an Engine</a></td> <td><a href="/customize/">Learning DASE</a></td> <td><a href="/machinelearning/dimensionalityreduction/">Dimensionality Reduction</a></td> <td><a href="/sdk/ruby/">Ruby</a></td> </tr> <tr> <td><a href="/start/customize/">Customizing an Engine</a></td> <td><a href="/customize/dase/">Implementing DASE</a></td> <td></td> <td><a href="/community/projects/#sdks">Community Contributed</a></td> </tr> <tr> <td><a href="/appintegration/">App Integration Overview</a></td> <td><a href="/evaluation/">Evaluation Overview</a></td> <td></td> <td></td> </tr> <tr> <td></td> <td><a href="/resources/intellij/">Intellij IDEA Guide</a></td> <td></td> <td></td> </tr> <tr> <td></td> <td><a href="/api/current/#package">Scala API</a></td> <td></td> <td></td> </tr> </tbody></table> <h2 id='release-notes' class='header-anchors'>Release Notes</h2><p>A summary of changes in each release can be found <a href="https://github.com/apache/predictionio/blob/livedoc/RELEASE.md">here</a>.</p><h2 id='licensing' class='header-anchors'>Licensing</h2><p>Apache PredictionIO® is licensed under the Apache License, Version 2.0. See <a href="https://github.com/apache/predictionio/blob/master/LICENSE.txt">LICENSE</a> for the full license text.</p></div></div></div></div><footer><div class="container"><div class="seperator"></div><div class="row"><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Community</h4><ul><li><a href="//predictionio.apache.org/install/" target="blank">Download</a></li><li><a href="//predictionio.apache.org/" target="blank">Docs</a></li><li><a href="//github.com/apache/predictionio" target="blank">GitHub</a></li><li><a href="mailto:user-subscribe@predictionio.apache.org" target="blank">Subscribe to User Mailing List</a></li><li><a href="//stackoverflow.com/questions/tagged/predictionio" target="blank">Stackoverflow</a></li></ul></div></div><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Contribute</h4><ul><li><a href="//predictionio.apache.org/community/contribute-code/" target="blank">Contribute</a></li><li><a href="//github.com/apache/predictionio" target="blank">Source Code</a></li><li><a href="//issues.apache.org/jira/browse/PIO" target="blank">Bug Tracker</a></li><li><a href="mailto:dev-subscribe@predictionio.apache.org" target="blank">Subscribe to Development Mailing List</a></li></ul></div></div></div><div class="row"><div class="col-md-12 footer-link-column"><p>Apache PredictionIO, PredictionIO, Apache, the Apache feather logo, and the Apache PredictionIO project logo are either registered trademarks or trademarks of The Apache Software Foundation in the United States and other countries.</p><p>All other marks mentioned may be trademarks or registered trademarks of their respective owners.</p></div></div></div><div id="footer-bottom"><div class="container"><div class="row"><div class="col-md-12"><div id="footer-logo-wrapper"><img alt="PredictionIO" src="/images/logos/logo-white-d1e9c6e6.png"/><span>®</span></div><div id="social-icons-wrapper"><a class="github-button" href="https://github.com/apache/predictionio" data-icon="octicon-star" data-show-count="true" aria-label="Star apache/predictionio on GitHub">Star</a> <a class="github-button" href="https://github.com/apache/predictionio/fork" data-icon="octicon-repo-forked" data-show-count="true" aria-label="Fork apache/predictionio on GitHub">Fork</a> <script id="github-bjs" async="" defer="" src="https://buttons.github.io/buttons.js"></script><a href="https://twitter.com/predictionio" target="blank"><img alt="PredictionIO on Twitter" src="/images/icons/twitter-ea9dc152.png"/></a> <a href="https://www.facebook.com/predictionio" target="blank"><img alt="PredictionIO on Facebook" src="/images/icons/facebook-5c57939c.png"/></a> </div></div></div></div></div></footer></div><script>(function(w,d,t,u,n,s,e){w['SwiftypeObject']=n;w[n]=w[n]||function(){
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-<!DOCTYPE html><html><head><title>Installing Apache PredictionIO®</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Installing Apache PredictionIO®"/><link rel="canonical" href="https://predictionio.apache.org/install/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script 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col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Installing Apache PredictionIO</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final active" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Getting Started</a><span class="spacer">&gt;</span></li><li><span class="last">Installing Apache PredictionIO</span></li></ul></div><div id="page-title"><h1>Installing Apache PredictionIO®</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#prerequisites">Prerequisites</a> </li> <li> <a href="#installation">Installation</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/install/index.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Getting Started</a><span class="spacer">&gt;</span></li><li><span class="last">Installing Apache PredictionIO</span></li></ul></div><div id="page-title"><h1>Installing Apache PredictionIO®</h1></div></div><div class="content"> <h2 id='prerequisites' class='header-anchors'>Prerequisites</h2><p>It is <strong>very important</strong> to meet the minimum version of the following technologies that power Apache PredictionIO®.</p> <ul> <li>Apache Hadoop 2.6.5 (optional, required only if YARN and HDFS are needed)</li> <li>Apache Spark 1.6.3 for Hadoop 2.6</li> <li>Java SE Development Kit 8</li> </ul> <p>and one of the following sets:</p> <ul> <li>PostgreSQL 9.1</li> </ul> <p>or</p> <ul> <li>MySQL 5.1</li> </ul> <p>or</p> <ul> <li>Apache HBase 0.98.5</li> <li>Elasticsearch 1.7.6</li> </ul> <div class="alert-message warning"><p><strong>Note that support for Scala 2.10 and Spark 1.6.x are deprecated as of PredictionIO 0.13.0, and may be removed in a future release.</strong></p></div><p>If you are running on a single machine, we recommend a minimum of 2GB memory.</p><div class="alert-message info"><p>If you are using Linux, Apache Spark local mode, which is the default operation mode without further configuration, may not work. In that case, configure your Apache Spark to run in <a href="http://spark.apache.org/docs/latest/spark-standalone.html">standalone cluster mode</a>.</p></div><h2 id='installation' class='header-anchors'>Installation</h2> <ul> <li><a href="/install/install-sourcecode/">Installing Apache PredictionIO</a></li> </ul> <p>You may also use Docker to install Apache PredictionIO®</p> <ul> <li><a href="/install/install-docker/">Installing Apache PredictionIO with Docker</a></li> </ul> <div class="alert-message warning"><p><strong>0.8.2 contains schema changes from the previous versions, if you have installed the previous versions, you may need to clear both HBase and Elasticsearch. See more <a href="/resources/upgrade/">here</a>.</strong></p></div></div></div></div></div><footer><div class="container"><div class="seperator"></div><div class="row"><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Community</h4><ul><li><a href="//predictionio.apache.org/install/" target="blank">Download</a></li><li><a href="//predictionio.apache.org/" target="blank">Docs</a></li><li><a href="//github.com/apache/predictionio" target="blank">GitHub</a></li><li><a href="mailto:user-subscribe@predictionio.apache.org" target="blank">Subscribe to User Mailing List</a></li><li><a href="//stackoverflow.com/questions/tagged/predictionio" target="blank">Stackoverflow</a></li></ul></div></div><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Contribute</h4><ul><li><a href="//predictionio.apache.org/community/contribute-code/" target="blank">Contribute</a></li><li><a href="//github.com/apache/predictionio" target="blank">Source Code</a></li><li><a href="//issues.apache.org/jira/browse/PIO" target="blank">Bug Tracker</a></li><li><a href="mailto:dev-subscribe@predictionio.apache.org" target="blank">Subscribe to Development Mailing List</a></li></ul></div></div></div><div class="row"><div class="col-md-12 footer-link-column"><p>Apache PredictionIO, PredictionIO, Apache, the Apache feather logo, and the Apache PredictionIO project logo are either registered trademarks or trademarks of The Apache Software Foundation in the United States and other countries.</p><p>All other marks mentioned may be trademarks or registered trademarks of their respective owners.</p></div></div></div><div id="footer-bottom"><div class="container"><div class="row"><div class="col-md-12"><div id="footer-logo-wrapper"><img alt="PredictionIO" src="/images/logos/logo-white-d1e9c6e6.png"/><span>®</span></div><div id="social-icons-wrapper"><a class="github-button" href="https://github.com/apache/predictionio" data-icon="octicon-star" data-show-count="true" aria-label="Star apache/predictionio on GitHub">Star</a> <a class="github-button" href="https://github.com/apache/predictionio/fork" data-icon="octicon-repo-forked" data-show-count="true" aria-label="Fork apache/predictionio on GitHub">Fork</a> <script id="github-bjs" async="" defer="" src="https://buttons.github.io/buttons.js"></script><a href="https://twitter.com/predictionio" target="blank"><img alt="PredictionIO on Twitter" src="/images/icons/twitter-ea9dc152.png"/></a> <a href="https://www.facebook.com/predictionio" target="blank"><img alt="PredictionIO on Facebook" src="/images/icons/facebook-5c57939c.png"/></a> </div></div></div></div></div></footer></div><script>(function(w,d,t,u,n,s,e){w['SwiftypeObject']=n;w[n]=w[n]||function(){
+<!DOCTYPE html><html><head><title>Installing Apache PredictionIO®</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Installing Apache PredictionIO®"/><link rel="canonical" href="https://predictionio.apache.org/install/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script 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col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Installing Apache PredictionIO</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final active" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Getting Started</a><span class="spacer">&gt;</span></li><li><span class="last">Installing Apache PredictionIO</span></li></ul></div><div id="page-title"><h1>Installing Apache PredictionIO®</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#prerequisites">Prerequisites</a> </li> <li> <a href="#installation">Installation</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/install/index.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Getting Started</a><span class="spacer">&gt;</span></li><li><span class="last">Installing Apache PredictionIO</span></li></ul></div><div id="page-title"><h1>Installing Apache PredictionIO®</h1></div></div><div class="content"> <h2 id='prerequisites' class='header-anchors'>Prerequisites</h2><p>It is <strong>very important</strong> to meet the minimum version of the following technologies that power Apache PredictionIO®.</p> <ul> <li>Apache Hadoop 2.6.5 (optional, required only if YARN and HDFS are needed)</li> <li>Apache Spark 2.0.2 for Hadoop 2.6</li> <li>Java SE Development Kit 8</li> </ul> <p>and one of the following sets:</p> <ul> <li>PostgreSQL 9.1</li> </ul> <p>or</p> <ul> <li>MySQL 5.1</li> </ul> <p>or</p> <ul> <li>Apache HBase 0.98.5</li> <li>Elasticsearch 1.7.6</li> </ul> <div class="alert-message warning"><p><strong>Note that support for Scala 2.10 and Spark 1.6 were removed as of PredictionIO 0.14.0. Note that support for Elasticsearch 1 is deprecated as of PredictionIO 0.14.0.</strong></p></div><p>If you are running on a single machine, we recommend a minimum of 2GB memory.</p><div class="alert-message info"><p>If you are using Linux, Apache Spark local mode, which is the default operation mode without further configuration, may not work. In that case, configure your Apache Spark to run in <a href="http://spark.apache.org/docs/latest/spark-standalone.html">standalone cluster mode</a>.</p></div><h2 id='installation' class='header-anchors'>Installation</h2> <ul> <li><a href="/install/install-sourcecode/">Installing Apache PredictionIO</a></li> </ul> <p>You may also use Docker to install Apache PredictionIO®</p> <ul> <li><a href="/install/install-docker/">Installing Apache PredictionIO with Docker</a></li> </ul> <div class="alert-message warning"><p><strong>0.8.2 contains schema changes from the previous versions, if you have installed the previous versions, you may need to clear both HBase and Elasticsearch. See more <a href="/resources/upgrade/">here</a>.</strong></p></div></div></div></div></div><footer><div class="container"><div class="seperator"></div><div class="row"><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Community</h4><ul><li><a href="//predictionio.apache.org/install/" target="blank">Download</a></li><li><a href="//predictionio.apache.org/" target="blank">Docs</a></li><li><a href="//github.com/apache/predictionio" target="blank">GitHub</a></li><li><a href="mailto:user-subscribe@predictionio.apache.org" target="blank">Subscribe to User Mailing List</a></li><li><a href="//stackoverflow.com/questions/tagged/predictionio" target="blank">Stackoverflow</a></li></ul></div></div><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Contribute</h4><ul><li><a href="//predictionio.apache.org/community/contribute-code/" target="blank">Contribute</a></li><li><a href="//github.com/apache/predictionio" target="blank">Source Code</a></li><li><a href="//issues.apache.org/jira/browse/PIO" target="blank">Bug Tracker</a></li><li><a href="mailto:dev-subscribe@predictionio.apache.org" target="blank">Subscribe to Development Mailing List</a></li></ul></div></div></div><div class="row"><div class="col-md-12 footer-link-column"><p>Apache PredictionIO, PredictionIO, Apache, the Apache feather logo, and the Apache PredictionIO project logo are either registered trademarks or trademarks of The Apache Software Foundation in the United States and other countries.</p><p>All other marks mentioned may be trademarks or registered trademarks of their respective owners.</p></div></div></div><div id="footer-bottom"><div class="container"><div class="row"><div class="col-md-12"><div id="footer-logo-wrapper"><img alt="PredictionIO" src="/images/logos/logo-white-d1e9c6e6.png"/><span>®</span></div><div id="social-icons-wrapper"><a class="github-button" href="https://github.com/apache/predictionio" data-icon="octicon-star" data-show-count="true" aria-label="Star apache/predictionio on GitHub">Star</a> <a class="github-button" href="https://github.com/apache/predictionio/fork" data-icon="octicon-repo-forked" data-show-count="true" aria-label="Fork apache/predictionio on GitHub">Fork</a> <script id="github-bjs" async="" defer="" src="https://buttons.github.io/buttons.js"></script><a href="https://twitter.com/predictionio" target="blank"><img alt="PredictionIO on Twitter" src="/images/icons/twitter-ea9dc152.png"/></a> <a href="https://www.facebook.com/predictionio" target="blank"><img alt="PredictionIO on Facebook" src="/images/icons/facebook-5c57939c.png"/></a> </div></div></div></div></div></footer></div><script>(function(w,d,t,u,n,s,e){w['SwiftypeObject']=n;w[n]=w[n]||function(){
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-<!DOCTYPE html><html><head><title>Installing Apache PredictionIO®</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Installing Apache PredictionIO®"/><link rel="canonical" href="https://predictionio.apache.org/install/install-sourcecode/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script 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col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Installing Apache PredictionIO®</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="page-title"><h1>Installing Apache PredictionIO®</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#downloading-binary-distribution">Downloading Binary Distribution</a> </li> <li> <a href="#downloading-source-code">Downloading Source Code</a> </li> <li> <a href="#installing-dependencies">Installing Dependencies</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/install/install-sourcecode.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="page-title"><h1>Installing Apache PredictionIO®</h1></div></div><div class="content"> <div class="alert-message info"><p>Assuming you are following the directory structure in the following, replace <code>/home/abc</code> with your own home directory wherever you see it.</p></div><h2 id='downloading-binary-distribution' class='header-anchors'>Downloading Binary Distribution</h2><p>You can use pre-built binary distribution for Apache PredictionIO® if you are building against</p> <ul> <li>Scala 2.11.8</li> <li>Spark 2.1.1</li> <li>Hadoop 2.7.3</li> <li>Elasticsearch 5.5.2</li> </ul> <p>Download <a href="https://www.apache.org/dyn/closer.lua/predictionio/0.13.0/apache-predictionio-0.13.0-bin.tar.gz">binary release from an Apache mirror</a>.</p><h3 id='verifying-release' class='header-anchors'>Verifying Release</h3><p>Verify binary release using the <a href="https://archive.apache.org/dist/predictionio/0.13.0/">signatures and checksums</a> and <a href="https://www.apache.org/dist/predictionio/KEYS">project release KEYS</a>.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
+<!DOCTYPE html><html><head><title>Installing Apache PredictionIO®</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Installing Apache PredictionIO®"/><link rel="canonical" href="https://predictionio.apache.org/install/install-sourcecode/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script 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col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Installing Apache PredictionIO®</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="page-title"><h1>Installing Apache PredictionIO®</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#downloading-binary-distribution">Downloading Binary Distribution</a> </li> <li> <a href="#downloading-source-code">Downloading Source Code</a> </li> <li> <a href="#installing-dependencies">Installing Dependencies</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/install/install-sourcecode.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="page-title"><h1>Installing Apache PredictionIO®</h1></div></div><div class="content"> <div class="alert-message info"><p>Assuming you are following the directory structure in the following, replace <code>/home/abc</code> with your own home directory wherever you see it.</p></div><h2 id='downloading-binary-distribution' class='header-anchors'>Downloading Binary Distribution</h2><p>You can use pre-built binary distribution for Apache PredictionIO® if you are building against</p> <ul> <li>Scala 2.11.12</li> <li>Spark 2.1.3</li> <li>Hadoop 2.7.7</li> <li>Elasticsearch 5.6.9</li> </ul> <p>Download <a href="https://www.apache.org/dyn/closer.lua/predictionio/0.14.0/apache-predictionio-0.14.0-bin.tar.gz">binary release from an Apache mirror</a>.</p><h3 id='verifying-release' class='header-anchors'>Verifying Release</h3><p>Verify binary release using the <a href="https://archive.apache.org/dist/predictionio/0.14.0/">signatures and checksums</a> and <a href="https://www.apache.org/dist/predictionio/KEYS">project release KEYS</a>.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2</pre></td><td class="code"><pre><span class="gp">$ </span>gpg --import KEYS
-<span class="gp">$ </span>gpg --verify apache-predictionio-0.13.0-bin.tar.gz.asc apache-predictionio-0.13.0-bin.tar.gz
+<span class="gp">$ </span>gpg --verify apache-predictionio-0.14.0-bin.tar.gz.asc apache-predictionio-0.14.0-bin.tar.gz
 </pre></td></tr></tbody></table> </div> <p>You should see something like this.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3</pre></td><td class="code"><pre>gpg: Signature made Tue Sep 26 22:55:22 2017 PDT
 gpg:                using RSA key 7E2363D84719A8F4
 gpg: Good signature from <span class="s2">"Chan Lee &lt;chanlee@apache.org&gt;"</span> <span class="o">[</span>ultimate]
-</pre></td></tr></tbody></table> </div> <p>For further information, the <a href="https://www.apache.org/info/verification.html">official guide from Apache</a> has the most up-to-date and complete information.</p><h3 id='installation' class='header-anchors'>Installation</h3><p>Extract the binary distribution and proceed to <a href="#installing-dependencies">Installing Dependencies</a>.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>tar zxvf apache-predictionio-0.13.0-bin.tar.gz
-</pre></td></tr></tbody></table> </div> <h2 id='downloading-source-code' class='header-anchors'>Downloading Source Code</h2><p>Download <a href="https://archive.apache.org/dist/predictionio/0.13.0/apache-predictionio-0.13.0.tar.gz">source release from an Apache mirror</a>.</p><h3 id='verifying-release' class='header-anchors'>Verifying Release</h3><p>Verify source release using <a href="https://archive.apache.org/dist/predictionio/0.13.0/">signatures and checksums</a> and <a href="https://www.apache.org/dist/predictionio/KEYS">project release KEYS</a>.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p>For further information, the <a href="https://www.apache.org/info/verification.html">official guide from Apache</a> has the most up-to-date and complete information.</p><h3 id='installation' class='header-anchors'>Installation</h3><p>Extract the binary distribution and proceed to <a href="#installing-dependencies">Installing Dependencies</a>.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>tar zxvf apache-predictionio-0.14.0-bin.tar.gz
+</pre></td></tr></tbody></table> </div> <h2 id='downloading-source-code' class='header-anchors'>Downloading Source Code</h2><p>Download <a href="https://archive.apache.org/dist/predictionio/0.14.0/apache-predictionio-0.14.0.tar.gz">source release from an Apache mirror</a>.</p><h3 id='verifying-release' class='header-anchors'>Verifying Release</h3><p>Verify source release using <a href="https://archive.apache.org/dist/predictionio/0.14.0/">signatures and checksums</a> and <a href="https://www.apache.org/dist/predictionio/KEYS">project release KEYS</a>.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2</pre></td><td class="code"><pre><span class="gp">$ </span>gpg --import KEYS
-<span class="gp">$ </span>gpg --verify apache-predictionio-0.13.0.tar.gz.asc apache-predictionio-0.13.0.tar.gz
+<span class="gp">$ </span>gpg --verify apache-predictionio-0.14.0.tar.gz.asc apache-predictionio-0.14.0.tar.gz
 </pre></td></tr></tbody></table> </div> <p>You should see something like this.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3</pre></td><td class="code"><pre>gpg: Signature made Tue Sep 26 22:55:22 2017 PDT
 gpg:                using RSA key 7E2363D84719A8F4
 gpg: Good signature from <span class="s2">"Chan Lee &lt;chanlee@apache.org&gt;"</span> <span class="o">[</span>ultimate]
-</pre></td></tr></tbody></table> </div> <p>For further information, the <a href="https://www.apache.org/info/verification.html">official guide from Apache</a> has the most up-to-date and complete information.</p><h3 id='building' class='header-anchors'>Building</h3><p>Run the following at the directory where you downloaded the source code to build Apache PredictionIO®. By default, the build will be against</p> <ul> <li>Scala 2.11.8</li> <li>Spark 2.1.1</li> <li>Hadoop 2.7.3</li> <li>Elasticsearch 5.5.2</li> </ul> <div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p>For further information, the <a href="https://www.apache.org/info/verification.html">official guide from Apache</a> has the most up-to-date and complete information.</p><h3 id='building' class='header-anchors'>Building</h3><p>Run the following at the directory where you downloaded the source code to build Apache PredictionIO®. As an example, if you want to build PredictionIO to support Scala 2.11.12, Spark 2.4.0, and Elasticsearch 6.4.2, you can do</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
-3</pre></td><td class="code"><pre><span class="gp">$ </span>tar zxvf apache-predictionio-0.13.0.tar.gz
-<span class="gp">$ </span><span class="nb">cd </span>apache-predictionio-0.13.0
-<span class="gp">$ </span>./make-distribution.sh
+3</pre></td><td class="code"><pre><span class="gp">$ </span>tar zxvf apache-predictionio-0.14.0.tar.gz
+<span class="gp">$ </span><span class="nb">cd </span>apache-predictionio-0.14.0
+<span class="gp">$ </span>./make-distribution.sh -Dscala.version<span class="o">=</span>2.11.12 -Dspark.version<span class="o">=</span>2.4.0 -Delasticsearch.version<span class="o">=</span>6.4.2
 </pre></td></tr></tbody></table> </div> <p>You should see something like the following when it finishes building successfully.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
 5</pre></td><td class="code"><pre>...
-PredictionIO-0.13.0/sbt/sbt
-PredictionIO-0.13.0/conf/
-PredictionIO-0.13.0/conf/pio-env.sh
-PredictionIO binary distribution created at PredictionIO-0.13.0.tar.gz
-</pre></td></tr></tbody></table> </div> <p>Extract the binary distribution you have just built.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>tar zxvf PredictionIO-0.13.0.tar.gz
-</pre></td></tr></tbody></table> </div> <h3 id='building-against-different-versions-of-dependencies' class='header-anchors'>Building against Different Versions of Dependencies</h3><p>Starting from version 0.11.0, PredictionIO can be built against different versions of dependencies. As of writing, one could build PredictionIO against these different dependencies:</p> <ul> <li>Scala 2.10.x(deprecated), 2.11.x</li> <li>Spark 1.6.x(deprecated), 2.0.x, 2.1.x</li> <li>Hadoop 2.6.x, 2.7.x</li> <li>Elasticsearch 1.7.x, 5.x</li> </ul> <p>As an example, if you want to build PredictionIO to support Scala 2.11.8, Spark 2.1.0, and Elasticsearch 5.3.0, you can do</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>./make-distribution.sh -Dscala.version<span class="o">=</span>2.11.8 -Dspark.version<span class="o">=</span>2.1.0 -Delasticsearch.version<span class="o">=</span>5.3.0
-</pre></td></tr></tbody></table> </div> <h2 id='installing-dependencies' class='header-anchors'>Installing Dependencies</h2><p>Let us install dependencies inside a subdirectory of the Apache PredictionIO installation. By following this convention, you can use Apache PredictionIO&#39;s default configuration as is.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>mkdir PredictionIO-0.13.0/vendors
+PredictionIO-0.14.0/sbt/sbt
+PredictionIO-0.14.0/conf/
+PredictionIO-0.14.0/conf/pio-env.sh
+PredictionIO binary distribution created at PredictionIO-0.14.0.tar.gz
+</pre></td></tr></tbody></table> </div> <p>Extract the binary distribution you have just built.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>tar zxvf PredictionIO-0.14.0.tar.gz
+</pre></td></tr></tbody></table> </div> <h3 id='building-against-different-versions-of-dependencies' class='header-anchors'>Building against Different Versions of Dependencies</h3><p>Starting from version 0.11.0, PredictionIO can be built against different versions of dependencies. As of writing, one could build PredictionIO against these different dependencies:</p> <ul> <li>Scala 2.11.x</li> <li>Spark 2.0.x, 2.1.x, 2.2.x, 2.3.x, 2.4.x</li> <li>Hadoop 2.6.x, 2.7.x</li> <li>Elasticsearch 1.7.x(deprecated), 5.6.x, 6.x</li> </ul> <h2 id='installing-dependencies' class='header-anchors'>Installing Dependencies</h2><p>Let us install dependencies inside a subdirectory of the Apache PredictionIO installation. By following this convention, you can use Apache PredictionIO&#39;s default configuration as is.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>mkdir PredictionIO-0.14.0/vendors
 </pre></td></tr></tbody></table> </div> <h3 id='spark-setup' class='header-anchors'>Spark Setup</h3> <p><a href="http://spark.apache.org">Apache Spark</a> is the default processing engine for PredictionIO. Download and extract it.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
-2</pre></td><td class="code"><pre><span class="gp">$ </span>wget http://d3kbcqa49mib13.cloudfront.net/spark-2.1.1-bin-hadoop2.6.tgz
-<span class="gp">$ </span>tar zxvfC spark-2.1.1-bin-hadoop2.6.tgz PredictionIO-0.13.0/vendors
-</pre></td></tr></tbody></table> </div> <div class="alert-message info"><p>If you decide to install Apache Spark to another location, you must edit <code>PredictionIO-0.13.0/conf/pio-env.sh</code> and change the <code>SPARK_HOME</code> variable to point to your own Apache Spark installation.</p></div><h3 id='storage-setup' class='header-anchors'>Storage Setup</h3><h4 id='<a-name="pgsql"></a>postgresql-setup' class='header-anchors' ><a name="pgsql"></a>PostgreSQL Setup</h4><div class="alert-message warning"><p>You may skip this section if you are not using PostgreSQL.</p></div> <p><a href="https://www.postgresql.org/">PostgreSQL</a> can be used by PredictionIO as a storage backend for all 3 repositories (event data, meta data, and model data). This is perhaps the easiest route if you are trying PredictionIO for the first time.</p><p>Make sure you have PostgreSQL installed. For Mac Users, <a href="https://brew.sh/">Homebrew</a> is recommended and can be used as</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>brew install postgresql
+2</pre></td><td class="code"><pre><span class="gp">$ </span>wget https://archive.apache.org/dist/spark/spark-2.4.0/spark-2.4.0-bin-hadoop2.7.tgz
+<span class="gp">$ </span>tar zxvfC spark-2.4.0-bin-hadoop2.7.tgz PredictionIO-0.14.0/vendors
+</pre></td></tr></tbody></table> </div> <div class="alert-message info"><p>If you decide to install Apache Spark to another location, you must edit <code>PredictionIO-0.14.0/conf/pio-env.sh</code> and change the <code>SPARK_HOME</code> variable to point to your own Apache Spark installation.</p></div><h3 id='storage-setup' class='header-anchors'>Storage Setup</h3><h4 id='<a-name="pgsql"></a>postgresql-setup' class='header-anchors' ><a name="pgsql"></a>PostgreSQL Setup</h4><div class="alert-message warning"><p>You may skip this section if you are not using PostgreSQL.</p></div> <p><a href="https://www.postgresql.org/">PostgreSQL</a> can be used by PredictionIO as a storage backend for all 3 repositories (event data, meta data, and model data). This is perhaps the easiest route if you are trying PredictionIO for the first time.</p><p>Make sure you have PostgreSQL installed. For Mac Users, <a href="https://brew.sh/">Homebrew</a> is recommended and can be used as</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>brew install postgresql
 </pre></td></tr></tbody></table> </div> <p>or on Ubuntu:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>apt-get install postgresql
 </pre></td></tr></tbody></table> </div> <p>Now that PostgreSQL is installed use the following comands</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>createdb pio
 </pre></td></tr></tbody></table> </div> <p>If you get an error of the form <code>could not connect to server: No such file or directory</code>, then you must first start the server manually,:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
 </pre></td></tr></tbody></table> </div> <p>Finally use the command:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>psql -c <span class="s2">"create user pio with password 'pio'"</span>
 </pre></td></tr></tbody></table> </div> <p>Starting from 0.11.0, PredictionIO no longer bundles JDBC drivers. Download the PostgreSQL JDBC driver from the <a href="https://jdbc.postgresql.org/">official web site</a>, and put the JAR file in the <code>lib</code> subdirectory. By default, <code>conf/pio-env.sh</code> assumes version 42.0.0 JDBC 4.2. If you use a different version, modify <code>POSTGRES_JDBC_DRIVER</code> to point to the correct JAR.</p><h4 id='hbase-and-elasticsearch-setup' class='header-anchors'>HBase and Elasticsearch Setup</h4><h5 id='elasticsearch-setup' class='header-anchors'>Elasticsearch Setup</h5><div class="alert-message warning"><p>You may skip this section if you are not using Elasticsearch.</p></div> <p><a href="https://www.elastic.co/">Elasticsearch</a> can be used as a storage backend for the meta data repository.</p><div class="alert-message info"><p>Starting from 0.11.0, if you build PredictionIO against Elasticsearch 5+, you may also use it as a backend for the event data repository.</p></div><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
-2</pre></td><td class="code"><pre><span class="gp">$ </span>wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.5.2.tar.gz
-<span class="gp">$ </span>tar zxvfC elasticsearch-5.5.2.tar.gz PredictionIO-0.13.0/vendors
-</pre></td></tr></tbody></table> </div> <div class="alert-message info"><p>If you decide to install Elasticsearch to another location, you must edit <code>PredictionIO-0.13.0/conf/pio-env.sh</code> and change the <code>PIO_STORAGE_SOURCES_ELASTICSEARCH_HOME</code> variable to point to your own Elasticsearch installation.</p></div><div class="alert-message info"><p>If you are using a shared network, change the <code>network.host</code> line in <code>PredictionIO-0.13.0/vendors/elasticsearch-5.5.2/config/elasticsearch.yml</code> to <code>network.host: 127.0.0.1</code> because by default, Elasticsearch looks for other machines on the network upon setup and you may run into weird errors if there are other machines that is also running Elasticsearch.</p></div><p>If you are not using the default setting at <code>localhost</code>, you may change the following in <code>PredictionIO-0.13.0/conf/pio-env.sh</code> to fit your setup.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
+2</pre></td><td class="code"><pre><span class="gp">$ </span>wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.6.9.tar.gz
+<span class="gp">$ </span>tar zxvfC elasticsearch-5.6.9.tar.gz PredictionIO-0.14.0/vendors
+</pre></td></tr></tbody></table> </div> <div class="alert-message info"><p>If you decide to install Elasticsearch to another location, you must edit <code>PredictionIO-0.14.0/conf/pio-env.sh</code> and change the <code>PIO_STORAGE_SOURCES_ELASTICSEARCH_HOME</code> variable to point to your own Elasticsearch installation.</p></div><div class="alert-message info"><p>If you are using a shared network, change the <code>network.host</code> line in <code>PredictionIO-0.14.0/vendors/elasticsearch-5.6.9/config/elasticsearch.yml</code> to <code>network.host: 127.0.0.1</code> because by default, Elasticsearch looks for other machines on the network upon setup and you may run into weird errors if there are other machines that is also running Elasticsearch.</p></div><p>If you are not using the default setting at <code>localhost</code>, you may change the following in <code>PredictionIO-0.14.0/conf/pio-env.sh</code> to fit your setup.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3</pre></td><td class="code"><pre><span class="nv">PIO_STORAGE_SOURCES_ELASTICSEARCH_TYPE</span><span class="o">=</span>elasticsearch
 <span class="nv">PIO_STORAGE_SOURCES_ELASTICSEARCH_HOSTS</span><span class="o">=</span>localhost
 <span class="nv">PIO_STORAGE_SOURCES_ELASTICSEARCH_PORTS</span><span class="o">=</span>9300
-</pre></td></tr></tbody></table> </div> <h5 id='<a-name="hbase"></a>hbase-setup' class='header-anchors' ><a name="hbase"></a>HBase Setup</h5><div class="alert-message warning"><p>You may skip this section if you are not using HBase.</p></div> <p><a href="http://hbase.apache.org">HBase</a> can be used as the backend of the event data repository.</p><p>Download HBase from a <a href="http://www.apache.org/dyn/closer.cgi/hbase/1.2.6/hbase-1.2.6-bin.tar.gz">mirror</a>. Extract HBase by following the example below.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>tar zxvfC hbase-1.2.6-bin.tar.gz PredictionIO-0.13.0/vendors
-</pre></td></tr></tbody></table> </div> <div class="alert-message info"><p>If you decide to install HBase to another location, you must edit <code>PredictionIO-0.13.0/conf/pio-env.sh</code> and change the <code>PIO_STORAGE_SOURCES_HBASE_HOME</code> variable to point to your own HBase installation.</p></div><p>You will need to at least add a minimal configuration to HBase to start it in standalone mode. Details can be found <a href="http://hbase.apache.org/book/quickstart.html">here</a>. Here, we are showing a sample minimal configuration.</p><div class="alert-message info"><p>For production deployment, run a fully distributed HBase configuration.</p></div><p>Edit <code>PredictionIO-0.13.0/vendors/hbase-1.2.6/conf/hbase-site.xml</code>.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <h5 id='<a-name="hbase"></a>hbase-setup' class='header-anchors' ><a name="hbase"></a>HBase Setup</h5><div class="alert-message warning"><p>You may skip this section if you are not using HBase.</p></div> <p><a href="http://hbase.apache.org">HBase</a> can be used as the backend of the event data repository.</p><p>Download HBase from a <a href="http://www.apache.org/dyn/closer.cgi/hbase/1.2.6/hbase-1.2.6-bin.tar.gz">mirror</a>. Extract HBase by following the example below.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>tar zxvfC hbase-1.2.6-bin.tar.gz PredictionIO-0.14.0/vendors
+</pre></td></tr></tbody></table> </div> <div class="alert-message info"><p>If you decide to install HBase to another location, you must edit <code>PredictionIO-0.14.0/conf/pio-env.sh</code> and change the <code>PIO_STORAGE_SOURCES_HBASE_HOME</code> variable to point to your own HBase installation.</p></div><p>You will need to at least add a minimal configuration to HBase to start it in standalone mode. Details can be found <a href="http://hbase.apache.org/book/quickstart.html">here</a>. Here, we are showing a sample minimal configuration.</p><div class="alert-message info"><p>For production deployment, run a fully distributed HBase configuration.</p></div><p>Edit <code>PredictionIO-0.14.0/vendors/hbase-1.2.6/conf/hbase-site.xml</code>.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -61,26 +60,26 @@
 10</pre></td><td class="code"><pre>&lt;configuration&gt;
   &lt;property&gt;
     &lt;name&gt;hbase.rootdir&lt;/name&gt;
-    &lt;value&gt;file:///home/abc/PredictionIO-0.13.0/vendors/hbase-1.2.6/data&lt;/value&gt;
+    &lt;value&gt;file:///home/abc/PredictionIO-0.14.0/vendors/hbase-1.2.6/data&lt;/value&gt;
   &lt;/property&gt;
   &lt;property&gt;
     &lt;name&gt;hbase.zookeeper.property.dataDir&lt;/name&gt;
-    &lt;value&gt;/home/abc/PredictionIO-0.13.0/vendors/hbase-1.2.6/zookeeper&lt;/value&gt;
+    &lt;value&gt;/home/abc/PredictionIO-0.14.0/vendors/hbase-1.2.6/zookeeper&lt;/value&gt;
   &lt;/property&gt;
 &lt;/configuration&gt;
-</pre></td></tr></tbody></table> </div> <div class="alert-message info"><p>HBase will create <code>hbase.rootdir</code> automatically to store its data.</p></div><p>Edit <code>PredictionIO-0.13.0/vendors/hbase-1.2.6/conf/hbase-env.sh</code> to set <code>JAVA_HOME</code> for the cluster. For example:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="nb">export </span><span class="nv">JAVA_HOME</span><span class="o">=</span>/usr/lib/jvm/java-8-oracle/jre
+</pre></td></tr></tbody></table> </div> <div class="alert-message info"><p>HBase will create <code>hbase.rootdir</code> automatically to store its data.</p></div><p>Edit <code>PredictionIO-0.14.0/vendors/hbase-1.2.6/conf/hbase-env.sh</code> to set <code>JAVA_HOME</code> for the cluster. For example:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="nb">export </span><span class="nv">JAVA_HOME</span><span class="o">=</span>/usr/lib/jvm/java-8-oracle/jre
 </pre></td></tr></tbody></table> </div> <p>For Mac users, use this instead (change <code>1.8</code> to <code>1.7</code> if you have Java 7 installed):</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="nb">export </span><span class="nv">JAVA_HOME</span><span class="o">=</span><span class="sb">`</span>/usr/libexec/java_home -v 1.8<span class="sb">`</span>
 </pre></td></tr></tbody></table> </div> <p>In addition, you must set your environment variable <code>JAVA_HOME</code>. For example, in <code>/home/abc/.bashrc</code> add the following line:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="nb">export </span><span class="nv">JAVA_HOME</span><span class="o">=</span>/usr/lib/jvm/java-8-oracle
-</pre></td></tr></tbody></table> </div> <h3 id='start-predictionio-and-dependent-services' class='header-anchors'>Start PredictionIO and Dependent Services</h3><div class="alert-message warning"><p>If you are using PostgreSQL or MySQL, skip <code>pio-start-all</code> and <code>pio-stop-all</code>, and do <code>PredictionIO-0.13.0/bin/pio eventserver &amp;</code> instead.</p></div><p>Simply do <code>PredictionIO-0.13.0/bin/pio-start-all</code> and you should see something similar to the following:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <h3 id='start-predictionio-and-dependent-services' class='header-anchors'>Start PredictionIO and Dependent Services</h3><div class="alert-message warning"><p>If you are using PostgreSQL or MySQL, skip <code>pio-start-all</code> and <code>pio-stop-all</code>, and do <code>PredictionIO-0.14.0/bin/pio eventserver &amp;</code> instead.</p></div><p>Simply do <code>PredictionIO-0.14.0/bin/pio-start-all</code> and you should see something similar to the following:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
 5
 6
-7</pre></td><td class="code"><pre><span class="gp">$ </span>PredictionIO-0.13.0/bin/pio-start-all
+7</pre></td><td class="code"><pre><span class="gp">$ </span>PredictionIO-0.14.0/bin/pio-start-all
 Starting Elasticsearch...
 Starting HBase...
-starting master, logging to /home/abc/PredictionIO-0.13.0/vendors/hbase-1.2.6/bin/../logs/hbase-abc-master-yourhost.local.out
+starting master, logging to /home/abc/PredictionIO-0.14.0/vendors/hbase-1.2.6/bin/../logs/hbase-abc-master-yourhost.local.out
 Waiting 10 seconds <span class="k">for </span>HBase to fully initialize...
 Starting PredictionIO Event Server...
 <span class="err">$</span>
@@ -95,7 +94,7 @@
 15256 org.elasticsearch.bootstrap.Elasticsearch
 15469 sun.tools.jps.Jps
 <span class="err">$</span>
-</pre></td></tr></tbody></table> </div> <p>A running setup will have these up and running:</p> <ul> <li>org.apache.predictionio.tools.console.Console</li> <li>org.apache.hadoop.hbase.master.HMaster</li> <li>org.elasticsearch.bootstrap.Elasticsearch</li> </ul> <p>At any time, you can run <code>PredictionIO-0.13.0/bin/pio status</code> to check the status of the dependencies.</p><p>Now you have installed everything you need!</p> <p>You can proceed to <a href="/start/download">Choosing an Engine Template</a>, or continue the QuickStart guide of the Engine template if you have already chosen one.</p> </div></div></div></div><footer><div class="container"><div class="seperator"></div><div class="row"><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Community</h4><ul><li><a href="//predictionio.apache.org/install/" target="blank">Download</a></li><li><a href="//predictionio.apache.org/" target="blank">Docs</a></li><li><a href="//github.com/apache/predictionio" target="blank">GitHub</a></li><li><a href="mailto:user-subscribe@predictionio.apache.org" target="blank">Subscribe to User Mailing List</a></li><li><a href="//stackoverflow.com/questions/tagged/predictionio" target="blank">Stackoverflow</a></li></ul></div></div><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Contribute</h4><ul><li><a href="//predictionio.apache.org/community/contribute-code/" target="blank">Contribute</a></li><li><a href="//github.com/apache/predictionio" target="blank">Source Code</a></li><li><a href="//issues.apache.org/jira/browse/PIO" target="blank">Bug Tracker</a></li><li><a href="mailto:dev-subscribe@predictionio.apache.org" target="blank">Subscribe to Development Mailing List</a></li></ul></div></div></div><div class="row"><div class="col-md-12 footer-link-column"><p>Apache PredictionIO, PredictionIO, Apache, the Apache feather logo, and the Apache PredictionIO project logo are either registered trademarks or trademarks of The Apache Software Foundation in the United States and other countries.</p><p>All other marks mentioned may be trademarks or registered trademarks of their respective owners.</p></div></div></div><div id="footer-bottom"><div class="container"><div class="row"><div class="col-md-12"><div id="footer-logo-wrapper"><img alt="PredictionIO" src="/images/logos/logo-white-d1e9c6e6.png"/><span>®</span></div><div id="social-icons-wrapper"><a class="github-button" href="https://github.com/apache/predictionio" data-icon="octicon-star" data-show-count="true" aria-label="Star apache/predictionio on GitHub">Star</a> <a class="github-button" href="https://github.com/apache/predictionio/fork" data-icon="octicon-repo-forked" data-show-count="true" aria-label="Fork apache/predictionio on GitHub">Fork</a> <script id="github-bjs" async="" defer="" src="https://buttons.github.io/buttons.js"></script><a href="https://twitter.com/predictionio" target="blank"><img alt="PredictionIO on Twitter" src="/images/icons/twitter-ea9dc152.png"/></a> <a href="https://www.facebook.com/predictionio" target="blank"><img alt="PredictionIO on Facebook" src="/images/icons/facebook-5c57939c.png"/></a> </div></div></div></div></div></footer></div><script>(function(w,d,t,u,n,s,e){w['SwiftypeObject']=n;w[n]=w[n]||function(){
+</pre></td></tr></tbody></table> </div> <p>A running setup will have these up and running:</p> <ul> <li>org.apache.predictionio.tools.console.Console</li> <li>org.apache.hadoop.hbase.master.HMaster</li> <li>org.elasticsearch.bootstrap.Elasticsearch</li> </ul> <p>At any time, you can run <code>PredictionIO-0.14.0/bin/pio status</code> to check the status of the dependencies.</p><p>Now you have installed everything you need!</p> <p>You can proceed to <a href="/start/download">Choosing an Engine Template</a>, or continue the QuickStart guide of the Engine template if you have already chosen one.</p> </div></div></div></div><footer><div class="container"><div class="seperator"></div><div class="row"><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Community</h4><ul><li><a href="//predictionio.apache.org/install/" target="blank">Download</a></li><li><a href="//predictionio.apache.org/" target="blank">Docs</a></li><li><a href="//github.com/apache/predictionio" target="blank">GitHub</a></li><li><a href="mailto:user-subscribe@predictionio.apache.org" target="blank">Subscribe to User Mailing List</a></li><li><a href="//stackoverflow.com/questions/tagged/predictionio" target="blank">Stackoverflow</a></li></ul></div></div><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Contribute</h4><ul><li><a href="//predictionio.apache.org/community/contribute-code/" target="blank">Contribute</a></li><li><a href="//github.com/apache/predictionio" target="blank">Source Code</a></li><li><a href="//issues.apache.org/jira/browse/PIO" target="blank">Bug Tracker</a></li><li><a href="mailto:dev-subscribe@predictionio.apache.org" target="blank">Subscribe to Development Mailing List</a></li></ul></div></div></div><div class="row"><div class="col-md-12 footer-link-column"><p>Apache PredictionIO, PredictionIO, Apache, the Apache feather logo, and the Apache PredictionIO project logo are either registered trademarks or trademarks of The Apache Software Foundation in the United States and other countries.</p><p>All other marks mentioned may be trademarks or registered trademarks of their respective owners.</p></div></div></div><div id="footer-bottom"><div class="container"><div class="row"><div class="col-md-12"><div id="footer-logo-wrapper"><img alt="PredictionIO" src="/images/logos/logo-white-d1e9c6e6.png"/><span>®</span></div><div id="social-icons-wrapper"><a class="github-button" href="https://github.com/apache/predictionio" data-icon="octicon-star" data-show-count="true" aria-label="Star apache/predictionio on GitHub">Star</a> <a class="github-button" href="https://github.com/apache/predictionio/fork" data-icon="octicon-repo-forked" data-show-count="true" aria-label="Fork apache/predictionio on GitHub">Fork</a> <script id="github-bjs" async="" defer="" src="https://buttons.github.io/buttons.js"></script><a href="https://twitter.com/predictionio" target="blank"><img alt="PredictionIO on Twitter" src="/images/icons/twitter-ea9dc152.png"/></a> <a href="https://www.facebook.com/predictionio" target="blank"><img alt="PredictionIO on Facebook" src="/images/icons/facebook-5c57939c.png"/></a> </div></div></div></div></div></footer></div><script>(function(w,d,t,u,n,s,e){w['SwiftypeObject']=n;w[n]=w[n]||function(){
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diff --git a/resources/intellij/index.html b/resources/intellij/index.html
index a93732e..ca49653 100644
--- a/resources/intellij/index.html
+++ b/resources/intellij/index.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html><html><head><title>Developing Engines with IntelliJ IDEA</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Developing Engines with IntelliJ IDEA"/><link rel="canonical" href="https://predictionio.apache.org/resources/intellij/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script 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class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final active" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Resources</a><span class="spacer">&gt;</span></li><li><span class="last">Developing Engines with IntelliJ IDEA</span></li></ul></div><div id="page-title"><h1>Developing Engines with IntelliJ IDEA</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#prerequisites">Prerequisites</a> </li> <li> <a href="#preparing-intellij-for-engine-development">Preparing IntelliJ for Engine Development</a> </li> <li> <a href="#running-and-debugging-in-intellij-idea">Running and Debugging in IntelliJ IDEA</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/resources/intellij.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Resources</a><span class="spacer">&gt;</span></li><li><span class="last">Developing Engines with IntelliJ IDEA</span></li></ul></div><div id="page-title"><h1>Developing Engines with IntelliJ IDEA</h1></div></div><div class="content"> <h2 id='prerequisites' class='header-anchors'>Prerequisites</h2><p>This documentation assumes that you have a fully functional PredictionIO setup. If you have not installed PredictionIO yet, please follow <a href="/install/">these instructions</a>.</p><p>The following instructions have been tested with IntelliJ IDEA 2018.2.2 Community Edition.</p><h2 id='preparing-intellij-for-engine-development' class='header-anchors'>Preparing IntelliJ for Engine Development</h2><h3 id='installing-intellij-scala-plugin' class='header-anchors'>Installing IntelliJ Scala Plugin</h3><p>First of all, you will need to install the <a href="https://plugins.jetbrains.com/plugin/?id=1347">Scala plugin</a> if you have not already done so.</p><p>Go to the <em>Preferences</em> menu item, and look for <em>Plugins</em>. You should see the following screen.</p><p><img alt="IntelliJ Plugins" src="/images/intellij/intelliJ-scala-plugin-43ad9eb2.png"/></p><p>Click <em>Install JetBrains plugin...</em>, the search for <em>Scala</em>. You should arrive at something similar to the following.</p><p><img alt="Scala Plugin" src="/images/intellij/intellij-scala-plugin-2-0edbef71.png"/></p><p>Click the green <em>Install plugin</em> button to install the plugin. Restart IntelliJ IDEA if asked to do so.</p><h3 id='setting-up-the-engine-directory' class='header-anchors'>Setting Up the Engine Directory</h3><p>Create an engine directory from a template. This requires that you download a template that you wish to start from or modify.</p><p>Follow template <a href="/start/download">install</a> and <a href="/start/deploy">deploy</a> instructions or go through the <a href="/templates/recommendation/quickstart/">Quick Start</a> if you are planning to modify a recommender. Make sure to build, train, and deploy the engine to make sure all is configured properly.</p><p>From IntelliJ IDEA, choose <em>File</em> &gt; <em>New</em> &gt; <em>Project from Existing Sources...</em>. When asked to select a directory to import, browse to the engine directory that you downloaded too and proceed. Make sure you pick <em>Import project from external model</em> &gt; <em>SBT</em>, then proceed to finish.</p><p>You should be able to build the project at this point. To run and debug your template, continue on to the rest of the steps.</p><h3 id='optional:-issues-with-snappy-on-macos' class='header-anchors'>Optional: Issues with Snappy on macOS</h3><p>If you are running on macOS and run into the following <a href="http://bit.ly/12Abtvn">known issue</a>, follow steps in this section.</p><p>Edit <code>build.sbt</code> and add the following under <code>libraryDependencies</code></p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="s2">"org.xerial.snappy"</span> % <span class="s2">"snappy-java"</span> % <span class="s2">"1.1.1.7"</span>
-</pre></td></tr></tbody></table> </div> <p><img alt="Updating build.sbt" src="/images/intellij/intellij-buildsbt-05cfd141.png"/></p><p>When you are done editing, IntelliJ should prompt you to import new changes, unless you have already enabled auto import. Import this change to make it effective.</p><h3 id='module-settings' class='header-anchors'>Module Settings</h3><div class="alert-message info"><p>IntelliJ will recreate module settings whenever it imports changes of your project. You will need to repeat this section whenever that happens.</p></div><p>Due to the way how <code>pio</code> command sources required classes during runtime, it is necessary to add them manually in module settings for <em>Run/Debug Configurations</em> to work properly.</p><p>Right click on the project and click <em>Open Module Settings</em>. Hit the <strong>+</strong> button right below the list of dependencies, and select <em>JARs or directories...</em>.</p><p>The first JAR that you need to add is the <code>pio-assembly-0.13.0.jar</code> that contains all necessary classes. It can be found inside the <code>dist/lib</code> directory of your PredictionIO source installation directory (if you have built from sources) or the <code>lib</code> directory of your PredictionIO binary installation directory.</p><p>Next, you will need to make sure some configuration files from your PredictionIO installation can be found during runtime. Add the <code>conf</code> directory of your PredictionIO installation directory. When asked about categories of the directory, pick <em>Classes</em>.</p><p>Finally, you will need to add storage classes. The exact list of JARs that you will need to add depends on your storage configuration. These JARs can be found inside the <code>dist/lib/spark</code> directory of your PredictionIO source installation directory (if you have built from sources) or the <code>lib/spark</code> directory of your PredictionIO binary installation directory.</p> <ul> <li><p> <code>pio-data-elasticsearch-assembly-0.13.0.jar</code></p><p>Add this JAR if your configuration uses Elasticsearch.</p></li> <li><p> <code>pio-data-hbase-assembly-0.13.0.jar</code></p><p>Add this JAR if your configuration uses Apache HBase.</p></li> <li><p> <code>pio-data-hdfs-assembly-0.13.0.jar</code></p><p>Add this JAR if your configuration uses HDFS.</p></li> <li><p> <code>pio-data-jdbc-assembly-0.13.0.jar</code></p><p>Add this JAR if your configuration uses JDBC. Notice that you must also add any additional JDBC driver JARs.</p></li> <li><p> <code>pio-data-localfs-assembly-0.13.0.jar</code></p><p>Add this JAR if your configuration uses local filesystem.</p></li> <li><p> <code>pio-data-s3-assembly-0.13.0.jar</code></p><p>Add this JAR if your configuration uses Amazon Web Services S3.</p></li> </ul> <p>Make sure to change all these additions to <em>Runtime</em> scope. The following shows an example that uses the JDBC storage backend with PostgreSQL driver.</p><p><img alt="Example module settings for a JDBC and PostgreSQL configuration" src="/images/intellij/intellij-module-settings-fb88b688.png"/></p><h2 id='running-and-debugging-in-intellij-idea' class='header-anchors'>Running and Debugging in IntelliJ IDEA</h2><h3 id='simulating-<code>pio-train</code>' class='header-anchors' >Simulating <code>pio train</code></h3><p>Create a new <em>Run/Debug Configuration</em> by going to <em>Run</em> &gt; <em>Edit Configurations...</em>. Click on the <strong>+</strong> button and select <em>Application</em>. Name it <code>pio train</code> and put in the following:</p> <ul> <li><p> Main class:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre>org.apache.predictionio.workflow.CreateWorkflow
+</pre></td></tr></tbody></table> </div> <p><img alt="Updating build.sbt" src="/images/intellij/intellij-buildsbt-05cfd141.png"/></p><p>When you are done editing, IntelliJ should prompt you to import new changes, unless you have already enabled auto import. Import this change to make it effective.</p><h3 id='module-settings' class='header-anchors'>Module Settings</h3><div class="alert-message info"><p>IntelliJ will recreate module settings whenever it imports changes of your project. You will need to repeat this section whenever that happens.</p></div><p>Due to the way how <code>pio</code> command sources required classes during runtime, it is necessary to add them manually in module settings for <em>Run/Debug Configurations</em> to work properly.</p><p>Right click on the project and click <em>Open Module Settings</em>. Hit the <strong>+</strong> button right below the list of dependencies, and select <em>JARs or directories...</em>.</p><p>The first JAR that you need to add is the <code>pio-assembly-0.14.0.jar</code> that contains all necessary classes. It can be found inside the <code>dist/lib</code> directory of your PredictionIO source installation directory (if you have built from sources) or the <code>lib</code> directory of your PredictionIO binary installation directory.</p><p>Next, you will need to make sure some configuration files from your PredictionIO installation can be found during runtime. Add the <code>conf</code> directory of your PredictionIO installation directory. When asked about categories of the directory, pick <em>Classes</em>.</p><p>Finally, you will need to add storage classes. The exact list of JARs that you will need to add depends on your storage configuration. These JARs can be found inside the <code>dist/lib/spark</code> directory of your PredictionIO source installation directory (if you have built from sources) or the <code>lib/spark</code> directory of your PredictionIO binary installation directory.</p> <ul> <li><p> <code>pio-data-elasticsearch-assembly-0.14.0.jar</code></p><p>Add this JAR if your configuration uses Elasticsearch.</p></li> <li><p> <code>pio-data-hbase-assembly-0.14.0.jar</code></p><p>Add this JAR if your configuration uses Apache HBase.</p></li> <li><p> <code>pio-data-hdfs-assembly-0.14.0.jar</code></p><p>Add this JAR if your configuration uses HDFS.</p></li> <li><p> <code>pio-data-jdbc-assembly-0.14.0.jar</code></p><p>Add this JAR if your configuration uses JDBC. Notice that you must also add any additional JDBC driver JARs.</p></li> <li><p> <code>pio-data-localfs-assembly-0.14.0.jar</code></p><p>Add this JAR if your configuration uses local filesystem.</p></li> <li><p> <code>pio-data-s3-assembly-0.14.0.jar</code></p><p>Add this JAR if your configuration uses Amazon Web Services S3.</p></li> </ul> <p>Make sure to change all these additions to <em>Runtime</em> scope. The following shows an example that uses the JDBC storage backend with PostgreSQL driver.</p><p><img alt="Example module settings for a JDBC and PostgreSQL configuration" src="/images/intellij/intellij-module-settings-fb88b688.png"/></p><h2 id='running-and-debugging-in-intellij-idea' class='header-anchors'>Running and Debugging in IntelliJ IDEA</h2><h3 id='simulating-<code>pio-train</code>' class='header-anchors' >Simulating <code>pio train</code></h3><p>Create a new <em>Run/Debug Configuration</em> by going to <em>Run</em> &gt; <em>Edit Configurations...</em>. Click on the <strong>+</strong> button and select <em>Application</em>. Name it <code>pio train</code> and put in the following:</p> <ul> <li><p> Main class:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre>org.apache.predictionio.workflow.CreateWorkflow
 </pre></td></tr></tbody></table> </div></li> <li><p> VM options:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre>-Dspark.master<span class="o">=</span><span class="nb">local</span> -Dlog4j.configuration<span class="o">=</span>file:/&lt;your_pio_path&gt;/conf/log4j.properties -Dpio.log.dir<span class="o">=</span>&lt;path_of_log_file&gt;
 </pre></td></tr></tbody></table> </div></li> <li><p> Program arguments:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre>--engine-id dummy --engine-version dummy --engine-variant engine.json --env <span class="nv">dummy</span><span class="o">=</span>dummy
 </pre></td></tr></tbody></table> </div></li> </ul> <p>Make sure <em>Working directory</em> is set to the base directory of the template that you are working on.</p><p>Click the folder button to the right of <em>Environment variables</em>, and paste the relevant values from <code>conf/pio-env.sh</code> in your PredictionIO installation directory. The following shows an example using JDBC and PostgreSQL.</p><p><img alt="Example environment variables settings" src="/images/intellij/pio-train-env-vars-36b4c5bd.png"/></p><p>Make sure <em>Include dependencies with &quot;Provided&quot; scope</em> is checked.</p><p>The end result should look something similar to this.</p><p><img alt="Run Configuration" src="/images/intellij/pio-train-e4117867.png"/></p><p>Save and you can run or debug <code>pio train</code> with the new configuration!</p><h3 id='simulating-<code>pio-deploy</code>' class='header-anchors' >Simulating <code>pio deploy</code></h3><p>For <code>pio deploy</code>, simply duplicate the previous configuration and replace with the following.</p> <ul> <li><p> Main class:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre>org.apache.predictionio.workflow.CreateServer
diff --git a/resources/upgrade/index.html b/resources/upgrade/index.html
index 933eb64..f93e477 100644
--- a/resources/upgrade/index.html
+++ b/resources/upgrade/index.html
@@ -1,4 +1,123 @@
-<!DOCTYPE html><html><head><title>Upgrade Instructions</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Upgrade Instructions"/><link rel="canonical" href="https://predictionio.apache.org/resources/upgrade/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script src="//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script><script src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: true });}catch(e){}</script></head><body><div id="global"><header><div class="container" id="header-wrapper"><div class="row"><div class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a href="#"></a><a href="http://predictionio.apache.org/"><img alt="Apache PredictionIO" id="logo" src="/images/logos/logo-ee2b9bb3.png"/></a><span>®</span></div><div id="menu-wrapper"><div id="pill-wrapper"><a class="pill left" href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" href="//github.com/apache/predictionio/">OPEN SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md hidden-lg" src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Upgrade Instructions</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li 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class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a 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Instructions</span></li></ul></div><div id="page-title"><h1>Upgrade Instructions</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#how-to-upgrade">How to Upgrade</a> </li> <li> <a href="#additional-notes-for-specific-versions-upgrade">Additional Notes for Specific Versions Upgrade</a> <ul> <li> <a href="#upgrade-to-0-12-0">Upgrade to 0.12.0</a> </li> <li> <a href="#upgrade-to-0-11-0">Upgrade to 0.11.0</a> </li> <li> <a href="#upgrade-to-0-9-2">Upgrade to 0.9.2</a> </li> <li> <a href="#upgrade-to-0-9-0">Upgrade to 0.9.0</a> </li> <li> <a href="#upgrade-to-0-8-4">Upgrade to 0.8.4</a> </li> <li> <a href="#upgrade-from-0-8-2-to-0-8-3">Upgrade from 0.8.2 to 0.8.3</a> </li> <li> <a href="#schema-changes-in-0-8-2">Schema Changes in 0.8.2</a> </li> <li> <a href="#experimental-upgrade-tool-upgrade-hbase-schema-from-0-8-0-0-8-1-to-0-8-2">Experimental upgrade tool (Upgrade HBase schema from 0.8.0/0.8.1 to 0.8.2)</a> </li> </ul> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/resources/upgrade.html.md"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Resources</a><span class="spacer">&gt;</span></li><li><span class="last">Upgrade Instructions</span></li></ul></div><div id="page-title"><h1>Upgrade Instructions</h1></div></div><div class="content"> <p>This page highlights major changes in each version and upgrade tools.</p><h1 id='how-to-upgrade' class='header-anchors'>How to Upgrade</h1><p>To upgrade and use new version of PredictionIO, do the following:</p> <ul> <li>Download and build the new PredictionIO binary <a href="/install/install-sourcecode/">(instructions)</a>.</li> <li>Retain the setting from current <code>PredictionIO/conf/pio-env.sh</code> to the new <code>PredictionIO/conf/pio-env.sh</code>.</li> <li>If you have added <code>PredictionIO/bin</code> to your <code>PATH</code> environment variable before, change it to the new <code>PredictionIO/bin</code> as well.</li> </ul> <h1 id='additional-notes-for-specific-versions-upgrade' class='header-anchors'>Additional Notes for Specific Versions Upgrade</h1><p>In addition, please take notes of the following for specific version upgrade.</p><h2 id='upgrade-to-0.12.0' class='header-anchors'>Upgrade to 0.12.0</h2><p>In 0.12.0, Elasticsearch 5.x client has been reimplemented as a singleton. Engine templates directly using Elasticsearch 5.x StorageClient require update for compatibility. See <a href="https://github.com/apache/predictionio/pull/421">pull request</a> for details.</p><h2 id='upgrade-to-0.11.0' class='header-anchors'>Upgrade to 0.11.0</h2><p>Starting from 0.11.0, PredictionIO no longer bundles any JDBC drivers in the binary assembly. If your setup is using a JDBC backend and you run into storage connection errors after an upgrade, please manually install the JDBC driver. If you use PostgreSQL, you can find instructions <a href="/install/install-sourcecode#pgsql">here</a>.</p><h2 id='upgrade-to-0.9.2' class='header-anchors'>Upgrade to 0.9.2</h2><p>The Spark dependency has been upgraded to version 1.3.0. All engines must be rebuilt against it in order to work.</p><p>Open and edit <code>build.sbt</code> of your engine, and look for these two lines:</p><div class="highlight scala"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
+<!DOCTYPE html><html><head><title>Upgrade Instructions</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Upgrade Instructions"/><link rel="canonical" href="https://predictionio.apache.org/resources/upgrade/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script 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id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li 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class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" 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href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final active" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Resources</a><span class="spacer">&gt;</span></li><li><span class="last">Upgrade Instructions</span></li></ul></div><div id="page-title"><h1>Upgrade Instructions</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#how-to-upgrade">How to Upgrade</a> <ul> <li> <a href="#upgrade-to-0-14-0">Upgrade to 0.14.0</a> </li> <li> <a href="#upgrade-to-0-12-0">Upgrade to 0.12.0</a> </li> <li> <a href="#upgrade-to-0-11-0">Upgrade to 0.11.0</a> </li> <li> <a href="#upgrade-to-0-9-2">Upgrade to 0.9.2</a> </li> <li> <a href="#upgrade-to-0-9-0">Upgrade to 0.9.0</a> </li> <li> <a href="#upgrade-to-0-8-4">Upgrade to 0.8.4</a> </li> <li> <a href="#upgrade-from-0-8-2-to-0-8-3">Upgrade from 0.8.2 to 0.8.3</a> </li> <li> <a href="#schema-changes-in-0-8-2">Schema Changes in 0.8.2</a> </li> <li> <a href="#experimental-upgrade-tool-upgrade-hbase-schema-from-0-8-0-0-8-1-to-0-8-2">Experimental upgrade tool (Upgrade HBase schema from 0.8.0/0.8.1 to 0.8.2)</a> </li> </ul> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/resources/upgrade.html.md"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Resources</a><span class="spacer">&gt;</span></li><li><span class="last">Upgrade Instructions</span></li></ul></div><div id="page-title"><h1>Upgrade Instructions</h1></div></div><div class="content"> <p>This page highlights major changes in each version and upgrade tools.</p><h1 id='how-to-upgrade' class='header-anchors'>How to Upgrade</h1><h2 id='upgrade-to-0.14.0' class='header-anchors'>Upgrade to 0.14.0</h2><p>This release adds Elasticsearch 6 support. See <a href="https://github.com/apache/predictionio/pull/466">pull request</a> for details. Consequently, you must reindex your data.</p> <ol> <li>Access your old cluster to check existing indices</li> </ol> <div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+30
+31
+32</pre></td><td class="code"><pre><span class="gp">$ </span>curl -XGET <span class="s1">'http://localhost:9200/_cat/indices?v'</span>
+health status index     uuid                   pri rep docs.count docs.deleted store.size pri.store.size
+yellow open   pio_event 6BAPz-DfQ2e9bICdVRr03g   5   1       1501            0    321.3kb        321.3kb
+yellow open   pio_meta  oxDMU1mGRn-vnXtAjmifSw   5   1          4            0     32.4kb         32.4kb
+
+<span class="gp">$ </span>curl -XGET <span class="s2">"http://localhost:9200/pio_meta/_search"</span> -d<span class="s1">'
+{
+  "aggs": {
+    "typesAgg": {
+      "terms": {
+        "field": "_type",
+        "size": 200
+      }
+    }
+  },
+  "size": 0
+}'</span>
+<span class="o">{</span><span class="s2">"took"</span>:3,<span class="s2">"timed_out"</span>:false,<span class="s2">"_shards"</span>:<span class="o">{</span><span class="s2">"total"</span>:5,<span class="s2">"successful"</span>:5,<span class="s2">"skipped"</span>:0,<span class="s2">"failed"</span>:0<span class="o">}</span>,<span class="s2">"hits"</span>:<span class="o">{</span><span class="s2">"total"</span>:4,<span class="s2">"max_score"</span>:0.0,<span class="s2">"hits"</span>:[]<span class="o">}</span>,<span class="s2">"aggregations"</span>:<span class="o">{</span><span class="s2">"typesAgg"</span>:<span class="o">{</span><span class="s2">"doc_count_error_upper_bound"</span>:0,<span class="s2">"sum_other_doc_count"</span>:0,<span class="s2">"buckets"</span>:[<span class="o">{</span><span class="s2">"key"</span>:<span class="s2">"accesskeys"</span>,<span class="s2">"doc_count"</span>:1<span class="o">}</span>,<span class="o">{</span><span class="s2">"key"</span>:<span class="s2">"apps"</span>,<span class="s2">"doc_count"</span>:1<span class="o">}</span>,<span class="o">{</span><span class="s2">"key"</span>:<span class="s2">"engine_instances"</span>,<span class="s2">"doc_count"</span>:1<span class="o">}</span>,<span class="o">{</span><span class="s2">"key"</span>:<span class="s2">"sequences"</span>,<span class="s2">"doc_count"</span>:1<span class="o">}]}}}</span>
+
+<span class="gp">$ </span>curl -XGET <span class="s2">"http://localhost:9200/pio_event/_search"</span> -d<span class="s1">'
+{
+  "aggs": {
+    "typesAgg": {
+      "terms": {
+        "field": "_type",
+        "size": 200
+      }
+    }
+  },
+  "size": 0
+}'</span>
+<span class="o">{</span><span class="s2">"took"</span>:2,<span class="s2">"timed_out"</span>:false,<span class="s2">"_shards"</span>:<span class="o">{</span><span class="s2">"total"</span>:5,<span class="s2">"successful"</span>:5,<span class="s2">"skipped"</span>:0,<span class="s2">"failed"</span>:0<span class="o">}</span>,<span class="s2">"hits"</span>:<span class="o">{</span><span class="s2">"total"</span>:1501,<span class="s2">"max_score"</span>:0.0,<span class="s2">"hits"</span>:[]<span class="o">}</span>,<span class="s2">"aggregations"</span>:<span class="o">{</span><span class="s2">"typesAgg"</span>:<span class="o">{</span><span class="s2">"doc_count_error_upper_bound"</span>:0,<span class="s2">"sum_other_doc_count"</span>:0,<span class="s2">"buckets"</span>:[<span class="o">{</span><span class="s2">"key"</span>:<span class="s2">"1"</span>,<span class="s2">"doc_count"</span>:1501<span class="o">}]}}}</span>
+</pre></td></tr></tbody></table> </div> <ol> <li>(Optional) Settings for new indices</li> </ol> <p>If you want to add specific settings associated with each index, we would recommend defining <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-templates.html">Index Templates</a>.</p><p>For example,</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16</pre></td><td class="code"><pre><span class="gp">$ </span>curl -H <span class="s2">"Content-Type: application/json"</span> -XPUT <span class="s2">"http://localhost:9600/_template/pio_meta"</span> -d<span class="s1">'
+{
+  "index_patterns": ["pio_meta_*"],
+  "settings": {
+    "number_of_shards": 1,
+    "number_of_replicas": 1
+  }
+}'</span>
+<span class="gp">$ </span>curl -H <span class="s2">"Content-Type: application/json"</span> -XPUT <span class="s2">"http://localhost:9600/_template/pio_event"</span> -d<span class="s1">'
+{
+  "index_patterns": ["pio_event_*"],
+  "settings": {
+    "number_of_shards": 1,
+    "number_of_replicas": 1
+  }
+}'</span>
+</pre></td></tr></tbody></table> </div> <ol> <li><a href="https://www.elastic.co/guide/en/elasticsearch/reference/6.0/reindex-upgrade-remote.html">Reindex</a></li> </ol> <p>According to the following conversion table, you run the reindex every index that you need to migrate to your new cluster.</p> <table><thead> <tr> <th>Old Cluster</th> <th>New Cluster</th> </tr> </thead><tbody> <tr> <td>index: <code>pio_meta</code> type: <code>accesskeys</code></td> <td>index: <code>pio_meta_accesskeys</code></td> </tr> <tr> <td>index: <code>pio_meta</code> type: <code>apps</code></td> <td>index: <code>pio_meta_apps</code></td> </tr> <tr> <td>index: <code>pio_meta</code> type: <code>channels</code></td> <td>index: <code>pio_meta_channels</code></td> </tr> <tr> <td>index: <code>pio_meta</code> type: <code>engine_instances</code></td> <td>index: <code>pio_meta_engine_instances</code></td> </tr> <tr> <td>index: <code>pio_meta</code> type: <code>evaluation_instances</code></td> <td>index: <code>pio_meta_evaluation_instances</code></td> </tr> <tr> <td>index: <code>pio_meta</code> type: <code>sequences</code></td> <td>index: <code>pio_meta_sequences</code></td> </tr> <tr> <td>index: <code>pio_event</code> type: It depends on your use case. (e.g. <code>1</code>)</td> <td>index: pio_event_<old_type> (e.g. <code>pio_event_1</code>)</td> </tr> </tbody></table> <p>For example,</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13</pre></td><td class="code"><pre><span class="gp">$ </span>curl -H <span class="s2">"Content-Type: application/json"</span> -XPOST <span class="s2">"http://localhost:9600/_reindex"</span> -d<span class="s1">'
+{
+  "source": {
+    "remote": {
+      "host": "http://localhost:9200"
+    },
+    "index": "pio_meta",
+    "type": "accesskeys"
+  },
+  "dest": {
+    "index": "pio_meta_accesskeys"
+  }
+}'</span>
+</pre></td></tr></tbody></table> </div> <h2 id='upgrade-to-0.12.0' class='header-anchors'>Upgrade to 0.12.0</h2><p>In 0.12.0, Elasticsearch 5.x client has been reimplemented as a singleton. Engine templates directly using Elasticsearch 5.x StorageClient require update for compatibility. See <a href="https://github.com/apache/predictionio/pull/421">pull request</a> for details.</p><h2 id='upgrade-to-0.11.0' class='header-anchors'>Upgrade to 0.11.0</h2><p>Starting from 0.11.0, PredictionIO no longer bundles any JDBC drivers in the binary assembly. If your setup is using a JDBC backend and you run into storage connection errors after an upgrade, please manually install the JDBC driver. If you use PostgreSQL, you can find instructions <a href="/install/install-sourcecode#pgsql">here</a>.</p><h2 id='upgrade-to-0.9.2' class='header-anchors'>Upgrade to 0.9.2</h2><p>The Spark dependency has been upgraded to version 1.3.0. All engines must be rebuilt against it in order to work.</p><p>Open and edit <code>build.sbt</code> of your engine, and look for these two lines:</p><div class="highlight scala"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3</pre></td><td class="code"><pre><span class="s">"org.apache.spark"</span> <span class="o">%%</span> <span class="s">"spark-core"</span>    <span class="o">%</span> <span class="s">"1.2.0"</span> <span class="o">%</span> <span class="s">"provided"</span>
 
diff --git a/samples/tabs/index.html b/samples/tabs/index.html
index 6f72f83..5d6b3b8 100644
--- a/samples/tabs/index.html
+++ b/samples/tabs/index.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html><head><title>Tabs</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Tabs"/><link rel="canonical" href="https://predictionio.apache.org/samples/tabs/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script src="//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script><script src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: true });}catch(e){}</script></head><body><div id="global"><header><div class="container" id="header-wrapper"><div class="row"><div class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a href="#"></a><a href="http://predictionio.apache.org/"><img alt="Apache PredictionIO" id="logo" src="/images/logos/logo-ee2b9bb3.png"/></a><span>®</span></div><div id="menu-wrapper"><div id="pill-wrapper"><a class="pill left" href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" href="//github.com/apache/predictionio/">OPEN SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md hidden-lg" src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Tabs</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="page-title"><h1>Tabs</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#test-syncing">Test Syncing</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/samples/tabs.html.md"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="page-title"><h1>Tabs</h1></div></div><div class="content"> <p>This page is used to test the tabs plugin based on <a href="https://github.com/vdw/Tabslet">Tabslet</a>.</p><div class="tabs"> <ul class="control"> <li data-lang="ruby"><a href="#tab-8847f4f5-7045-4cb4-af88-d3cbf372e422">Ruby</a></li> <li data-lang=""><a href="#tab-24cb5b20-8d3b-4502-8c52-e624d0f03e33">Plain</a></li> <li data-lang="html"><a href="#tab-cc059e62-0efe-4dc8-8560-be581cb110ef">HTML</a></li> <li data-lang=""><a href="#tab-56e4b0fd-50b3-42ee-a0a6-d275ceacd038">Test</a></li> </ul> <div data-tab="Ruby" data-lang="ruby" id="tab-8847f4f5-7045-4cb4-af88-d3cbf372e422"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+<!DOCTYPE html><html><head><title>Tabs</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Tabs"/><link rel="canonical" href="https://predictionio.apache.org/samples/tabs/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script src="//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script><script src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: true });}catch(e){}</script></head><body><div id="global"><header><div class="container" id="header-wrapper"><div class="row"><div class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a href="#"></a><a href="http://predictionio.apache.org/"><img alt="Apache PredictionIO" id="logo" src="/images/logos/logo-ee2b9bb3.png"/></a><span>®</span></div><div id="menu-wrapper"><div id="pill-wrapper"><a class="pill left" href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" href="//github.com/apache/predictionio/">OPEN SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md hidden-lg" src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Tabs</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="page-title"><h1>Tabs</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#test-syncing">Test Syncing</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/samples/tabs.html.md"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="page-title"><h1>Tabs</h1></div></div><div class="content"> <p>This page is used to test the tabs plugin based on <a href="https://github.com/vdw/Tabslet">Tabslet</a>.</p><div class="tabs"> <ul class="control"> <li data-lang="ruby"><a href="#tab-112b5223-af7f-4346-acbc-eab3c7486ef3">Ruby</a></li> <li data-lang=""><a href="#tab-122d52a9-7397-48b6-8949-9e986975a3f0">Plain</a></li> <li data-lang="html"><a href="#tab-2e96d9e7-6fd2-4f72-99b4-a629f8d71d6f">HTML</a></li> <li data-lang=""><a href="#tab-c4adf635-85c5-4459-ab7e-8093b540f686">Test</a></li> </ul> <div data-tab="Ruby" data-lang="ruby" id="tab-112b5223-af7f-4346-acbc-eab3c7486ef3"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -9,11 +9,11 @@
     <span class="s1">'bar'</span>
   <span class="k">end</span>
 <span class="k">end</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Plain" id="tab-24cb5b20-8d3b-4502-8c52-e624d0f03e33"> This is a test of **markdown** inside a tab! <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Plain" id="tab-122d52a9-7397-48b6-8949-9e986975a3f0"> This is a test of **markdown** inside a tab! <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2</pre></td> <td class="code"><pre>// This tab does not have the data-lang attribute <span class="nb">set</span>!
 <span class="gp">$ </span><span class="nb">cd </span>path/to/your/file
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="HTML" data-lang="html" id="tab-cc059e62-0efe-4dc8-8560-be581cb110ef"> <div class="highlight html"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td> <td class="code"><pre><span class="nt">&lt;p&gt;</span>Yes you can still use HTML in code blocks!<span class="nt">&lt;/p&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Test" id="tab-56e4b0fd-50b3-42ee-a0a6-d275ceacd038"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="HTML" data-lang="html" id="tab-2e96d9e7-6fd2-4f72-99b4-a629f8d71d6f"> <div class="highlight html"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td> <td class="code"><pre><span class="nt">&lt;p&gt;</span>Yes you can still use HTML in code blocks!<span class="nt">&lt;/p&gt;</span>
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Test" id="tab-c4adf635-85c5-4459-ab7e-8093b540f686"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -28,7 +28,7 @@
 </span><span class="s">Test</span> <span class="na">6</span> <span class="err">&lt;=</span>
 <span class="na">Test</span> <span class="na">7</span> <span class="err">&lt;</span><span class="nt">&gt;</span>
 <span class="nt">&lt;p&gt;&lt;b&gt;</span>Test<span class="nt">&lt;/b&gt;&lt;/p&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> </div> <h2 id='test-syncing' class='header-anchors'>Test Syncing</h2><p>Here we show a similar set of tabs to test language syncing:</p><div class="tabs"> <ul class="control"> <li data-lang="ruby"><a href="#tab-f11ce34b-c3e8-4b9e-94dd-3fa80be5ee34">Ruby</a></li> <li data-lang=""><a href="#tab-f3510f33-9d11-4124-be5a-f91da455692a">Plain</a></li> <li data-lang="html"><a href="#tab-05be7f0d-c972-40d8-9664-f4c9352fd51b">HTML</a></li> <li data-lang="python"><a href="#tab-7d108b35-8692-42ba-9ef6-8e3a9f474ee0">Python</a></li> </ul> <div data-tab="Ruby" data-lang="ruby" id="tab-f11ce34b-c3e8-4b9e-94dd-3fa80be5ee34"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> </div> <h2 id='test-syncing' class='header-anchors'>Test Syncing</h2><p>Here we show a similar set of tabs to test language syncing:</p><div class="tabs"> <ul class="control"> <li data-lang="ruby"><a href="#tab-b3f5c043-626c-4511-b777-604e6dc639e6">Ruby</a></li> <li data-lang=""><a href="#tab-b33cced0-16eb-42ec-8ba4-1100d0ff3b94">Plain</a></li> <li data-lang="html"><a href="#tab-c12698cf-cd83-46e7-9822-c3fa0bd8a87b">HTML</a></li> <li data-lang="python"><a href="#tab-2c21dfd8-713b-4e2b-b551-2c015c4301f8">Python</a></li> </ul> <div data-tab="Ruby" data-lang="ruby" id="tab-b3f5c043-626c-4511-b777-604e6dc639e6"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -39,12 +39,12 @@
     <span class="s1">'bar'</span>
   <span class="k">end</span>
 <span class="k">end</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Plain" id="tab-f3510f33-9d11-4124-be5a-f91da455692a"> This is a test of **markdown** inside a tab! <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Plain" id="tab-b33cced0-16eb-42ec-8ba4-1100d0ff3b94"> This is a test of **markdown** inside a tab! <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2</pre></td> <td class="code"><pre>// This tab does not have the data-lang attribute <span class="nb">set</span>!
 <span class="gp">$ </span><span class="nb">cd </span>path/to/your/file
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="HTML" data-lang="html" id="tab-05be7f0d-c972-40d8-9664-f4c9352fd51b"> <p>This HTML is <b>hard coded</b>.</p> </div> <div data-tab="Python" data-lang="python" id="tab-7d108b35-8692-42ba-9ef6-8e3a9f474ee0"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td> <td class="code"><pre><span class="c"># The other group does not have a Python tab.</span>
-</pre></td> </tr></tbody></table> </div> </div> </div> <div class="tabs"> <ul class="control"> <li data-lang="java"><a href="#tab-70af4656-3244-46cc-9f98-55cb0f1c2956">Java</a></li> <li data-lang="html"><a href="#tab-e30b75af-bea5-4207-9705-d08ade5aba32">HTML</a></li> </ul> <div data-tab="Java" data-lang="java" id="tab-70af4656-3244-46cc-9f98-55cb0f1c2956"> <div class="highlight plaintext"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td> <td class="code"><pre>// Java code..
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="HTML" data-lang="html" id="tab-e30b75af-bea5-4207-9705-d08ade5aba32"> This includes **bold** with Markdown. </div> </div> </div></div></div></div><footer><div class="container"><div class="seperator"></div><div class="row"><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Community</h4><ul><li><a href="//predictionio.apache.org/install/" target="blank">Download</a></li><li><a href="//predictionio.apache.org/" target="blank">Docs</a></li><li><a href="//github.com/apache/predictionio" target="blank">GitHub</a></li><li><a href="mailto:user-subscribe@predictionio.apache.org" target="blank">Subscribe to User Mailing List</a></li><li><a href="//stackoverflow.com/questions/tagged/predictionio" target="blank">Stackoverflow</a></li></ul></div></div><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Contribute</h4><ul><li><a href="//predictionio.apache.org/community/contribute-code/" target="blank">Contribute</a></li><li><a href="//github.com/apache/predictionio" target="blank">Source Code</a></li><li><a href="//issues.apache.org/jira/browse/PIO" target="blank">Bug Tracker</a></li><li><a href="mailto:dev-subscribe@predictionio.apache.org" target="blank">Subscribe to Development Mailing List</a></li></ul></div></div></div><div class="row"><div class="col-md-12 footer-link-column"><p>Apache PredictionIO, PredictionIO, Apache, the Apache feather logo, and the Apache PredictionIO project logo are either registered trademarks or trademarks of The Apache Software Foundation in the United States and other countries.</p><p>All other marks mentioned may be trademarks or registered trademarks of their respective owners.</p></div></div></div><div id="footer-bottom"><div class="container"><div class="row"><div class="col-md-12"><div id="footer-logo-wrapper"><img alt="PredictionIO" src="/images/logos/logo-white-d1e9c6e6.png"/><span>®</span></div><div id="social-icons-wrapper"><a class="github-button" href="https://github.com/apache/predictionio" data-icon="octicon-star" data-show-count="true" aria-label="Star apache/predictionio on GitHub">Star</a> <a class="github-button" href="https://github.com/apache/predictionio/fork" data-icon="octicon-repo-forked" data-show-count="true" aria-label="Fork apache/predictionio on GitHub">Fork</a> <script id="github-bjs" async="" defer="" src="https://buttons.github.io/buttons.js"></script><a href="https://twitter.com/predictionio" target="blank"><img alt="PredictionIO on Twitter" src="/images/icons/twitter-ea9dc152.png"/></a> <a href="https://www.facebook.com/predictionio" target="blank"><img alt="PredictionIO on Facebook" src="/images/icons/facebook-5c57939c.png"/></a> </div></div></div></div></div></footer></div><script>(function(w,d,t,u,n,s,e){w['SwiftypeObject']=n;w[n]=w[n]||function(){
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="HTML" data-lang="html" id="tab-c12698cf-cd83-46e7-9822-c3fa0bd8a87b"> <p>This HTML is <b>hard coded</b>.</p> </div> <div data-tab="Python" data-lang="python" id="tab-2c21dfd8-713b-4e2b-b551-2c015c4301f8"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td> <td class="code"><pre><span class="c"># The other group does not have a Python tab.</span>
+</pre></td> </tr></tbody></table> </div> </div> </div> <div class="tabs"> <ul class="control"> <li data-lang="java"><a href="#tab-a30334cf-b6f7-4e5f-9037-7e6ad808af1b">Java</a></li> <li data-lang="html"><a href="#tab-41dbe4b6-80d0-4188-8aa2-83d1b5e7b68d">HTML</a></li> </ul> <div data-tab="Java" data-lang="java" id="tab-a30334cf-b6f7-4e5f-9037-7e6ad808af1b"> <div class="highlight plaintext"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td> <td class="code"><pre>// Java code..
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diff --git a/sdk/java/index.html b/sdk/java/index.html
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class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" 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id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li 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href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a 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href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Integrating with Your App</a><span class="spacer">&gt;</span></li><li><a href="/sdk/">List of 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id="page-title"><h1>Java & Android SDK</h1></div></div><div class="content"> <h2 id='api-docs' class='header-anchors'>API Docs</h2><p><a href="https://javadoc.io/doc/org.apache.predictionio/predictionio-sdk-java-client/0.13.0">View API documentation</a> (compatible with PredictionIO version 0.14.0).</p><h2 id='central-repository' class='header-anchors'>Central Repository</h2><p><a href="http://search.maven.org/#search%7Cga%7C1%7Corg.apache.predictionio">Browse</a></p><h2 id='github' class='header-anchors'>GitHub</h2><iframe src="/github/?user=apache&repo=predictionio-sdk-java&type=fork&count=true&size=large" allowtransparency="true" frameborder="0" scrolling="0" width="170" height="30"></iframe> <iframe src="/github/?user=apache&repo=predictionio-sdk-java&type=watch&count=true&size=large" allowtransparency="true" frameborder="0" scrolling="0" width="170" height="30"></iframe> <p><a href="https://github.com/apache/predictionio-sdk-java">View code</a> on GitHub.</p><h2 id='license' 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-<!DOCTYPE html><html><head><title>PHP SDK</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="PHP SDK"/><link rel="canonical" href="https://predictionio.apache.org/sdk/php/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script src="//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script><script src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: true });}catch(e){}</script></head><body><div id="global"><header><div class="container" id="header-wrapper"><div class="row"><div class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a href="#"></a><a href="http://predictionio.apache.org/"><img alt="Apache PredictionIO" id="logo" src="/images/logos/logo-ee2b9bb3.png"/></a><span>®</span></div><div id="menu-wrapper"><div id="pill-wrapper"><a class="pill left" href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" href="//github.com/apache/predictionio/">OPEN SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md hidden-lg" src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>PHP SDK</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final active" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Integrating with Your App</a><span class="spacer">&gt;</span></li><li><a href="/sdk/">List of SDKs</a><span class="spacer">&gt;</span></li><li><span class="last">PHP SDK</span></li></ul></div><div id="page-title"><h1>PHP SDK</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#api-docs">API Docs</a> </li> <li> <a href="#packagist">Packagist</a> </li> <li> <a href="#github">GitHub</a> </li> <li> <a href="#license">License</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/sdk/php.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Integrating with Your App</a><span class="spacer">&gt;</span></li><li><a href="/sdk/">List of SDKs</a><span class="spacer">&gt;</span></li><li><span class="last">PHP SDK</span></li></ul></div><div id="page-title"><h1>PHP SDK</h1></div></div><div class="content"> <h2 id='api-docs' class='header-anchors'>API Docs</h2><p><a href="/sdk/php/api/">View API documentation</a> (compatible with PredictionIO version 0.13.0).</p><h2 id='packagist' class='header-anchors'>Packagist</h2><p><a href="https://packagist.org/packages/predictionio/predictionio">Browse</a></p><h2 id='github' class='header-anchors'>GitHub</h2><iframe src="/github/?user=apache&repo=predictionio-sdk-php&type=fork&count=true&size=large" allowtransparency="true" frameborder="0" scrolling="0" width="170" height="30"></iframe> <iframe src="/github/?user=apache&repo=predictionio-sdk-php&type=watch&count=true&size=large" allowtransparency="true" frameborder="0" scrolling="0" width="170" height="30"></iframe> <p><a href="https://github.com/apache/predictionio-sdk-php">View code</a> on GitHub.</p><h2 id='license' class='header-anchors'>License</h2><p><a href="https://github.com/apache/predictionio-sdk-php/blob/develop/LICENSE">Apache License 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+<!DOCTYPE html><html><head><title>PHP SDK</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="PHP SDK"/><link rel="canonical" href="https://predictionio.apache.org/sdk/php/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script 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id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li 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class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a 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href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Integrating with Your App</a><span class="spacer">&gt;</span></li><li><a href="/sdk/">List of SDKs</a><span class="spacer">&gt;</span></li><li><span class="last">PHP SDK</span></li></ul></div><div id="page-title"><h1>PHP SDK</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#api-docs">API Docs</a> </li> <li> <a href="#packagist">Packagist</a> </li> <li> <a href="#github">GitHub</a> </li> <li> <a href="#license">License</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/sdk/php.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Integrating with Your App</a><span class="spacer">&gt;</span></li><li><a href="/sdk/">List of SDKs</a><span class="spacer">&gt;</span></li><li><span class="last">PHP SDK</span></li></ul></div><div id="page-title"><h1>PHP SDK</h1></div></div><div class="content"> <h2 id='api-docs' class='header-anchors'>API Docs</h2><p><a href="/sdk/php/api/">View API documentation</a> (compatible with PredictionIO version 0.14.0).</p><h2 id='packagist' class='header-anchors'>Packagist</h2><p><a href="https://packagist.org/packages/predictionio/predictionio">Browse</a></p><h2 id='github' class='header-anchors'>GitHub</h2><iframe src="/github/?user=apache&repo=predictionio-sdk-php&type=fork&count=true&size=large" allowtransparency="true" frameborder="0" scrolling="0" width="170" height="30"></iframe> <iframe src="/github/?user=apache&repo=predictionio-sdk-php&type=watch&count=true&size=large" allowtransparency="true" frameborder="0" scrolling="0" width="170" height="30"></iframe> <p><a href="https://github.com/apache/predictionio-sdk-php">View code</a> on GitHub.</p><h2 id='license' class='header-anchors'>License</h2><p><a href="https://github.com/apache/predictionio-sdk-php/blob/develop/LICENSE">Apache License 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-<!DOCTYPE html><html><head><title>Python SDK</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Python SDK"/><link rel="canonical" href="https://predictionio.apache.org/sdk/python/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script 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id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final active" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Integrating with Your App</a><span class="spacer">&gt;</span></li><li><a href="/sdk/">List of 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class="content"> <h2 id='api-docs' class='header-anchors'>API Docs</h2><p><a href="http://pythonhosted.org/PredictionIO/">View API documentation</a> (compatible with PredictionIO 0.13.0).</p><h2 id='pypi' class='header-anchors'>PyPI</h2><p><a href="https://pypi.python.org/pypi/PredictionIO">Browse</a></p><h2 id='github' class='header-anchors'>GitHub</h2><iframe src="/github/?user=apache&repo=predictionio-sdk-python&type=fork&count=true&size=large" allowtransparency="true" frameborder="0" scrolling="0" width="170" height="30"></iframe> <iframe src="/github/?user=apache&repo=predictionio-sdk-python&type=watch&count=true&size=large" allowtransparency="true" frameborder="0" scrolling="0" width="170" height="30"></iframe> <p><a href="https://github.com/apache/predictionio-sdk-python">View code</a> on GitHub.</p><h2 id='license' class='header-anchors'>License</h2><p><a href="https://github.com/apache/predictionio-sdk-python/blob/develop/LICENSE.txt">Apache License 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id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final active" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" 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href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">Integrating with Your App</a><span class="spacer">&gt;</span></li><li><a href="/sdk/">List of 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class="content"> <h2 id='api-docs' class='header-anchors'>API Docs</h2><p><a href="http://pythonhosted.org/PredictionIO/">View API documentation</a> (compatible with PredictionIO 0.14.0).</p><h2 id='pypi' class='header-anchors'>PyPI</h2><p><a href="https://pypi.python.org/pypi/PredictionIO">Browse</a></p><h2 id='github' class='header-anchors'>GitHub</h2><iframe src="/github/?user=apache&repo=predictionio-sdk-python&type=fork&count=true&size=large" allowtransparency="true" frameborder="0" scrolling="0" width="170" height="30"></iframe> <iframe src="/github/?user=apache&repo=predictionio-sdk-python&type=watch&count=true&size=large" allowtransparency="true" frameborder="0" scrolling="0" width="170" height="30"></iframe> <p><a href="https://github.com/apache/predictionio-sdk-python">View code</a> on GitHub.</p><h2 id='license' class='header-anchors'>License</h2><p><a href="https://github.com/apache/predictionio-sdk-python/blob/develop/LICENSE.txt">Apache License 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-<!DOCTYPE html><html><head><title>Ruby SDK</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Ruby SDK"/><link rel="canonical" href="https://predictionio.apache.org/sdk/ruby/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script 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id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final active" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" 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id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li 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class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend 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-<!DOCTYPE html><html><head><title>Deploying with AWS CloudFormation</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Deploying with AWS CloudFormation"/><link rel="canonical" href="https://predictionio.apache.org/system/deploy-cloudformation/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script src="//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script><script src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: true });}catch(e){}</script></head><body><div id="global"><header><div class="container" id="header-wrapper"><div class="row"><div class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a href="#"></a><a href="http://predictionio.apache.org/"><img alt="Apache PredictionIO" id="logo" src="/images/logos/logo-ee2b9bb3.png"/></a><span>®</span></div><div id="menu-wrapper"><div id="pill-wrapper"><a class="pill left" href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" href="//github.com/apache/predictionio/">OPEN SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md hidden-lg" src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Deploying with AWS CloudFormation</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="page-title"><h1>Deploying with AWS CloudFormation</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#step-by-step">Step-by-Step</a> </li> <li> <a href="#using-the-cluster">Using the Cluster</a> </li> <li> <a href="#scaling-the-cluster">Scaling the Cluster</a> </li> <li> <a href="#support-and-pricing">Support and Pricing</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/system/deploy-cloudformation.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="page-title"><h1>Deploying with AWS CloudFormation</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>You can scale PredictionIO on AWS with <a href="http://aws.amazon.com/cloudformation/">CloudFormation</a>. Here we have defined a PredictionIO CloudFormation stack that you can deploy a functional, fully distributed PredictionIO cluster in minutes.</p><h3 id='instances' class='header-anchors'>Instances</h3><p>The PredictionIO CloudFormation stack creates two types of instance: <strong>compute and storage</strong>. By default, the stack will launch <strong>1 compute Instance and 3 Storage instances</strong>.</p><p>The compute instance <em>(ComputeInstance)</em> acts as Spark master. You can launch extra compute instances <em>(ComputeInstanceExtra)</em> by updating the stack. The storage instances <em>(StorageInstance)</em> form the core of the HDFS, ZooKeeper quorum, and HBase storage. Extra storage instances <em>(StorageInstanceExtra)</em> can be added to the cluster by updating the stack. They cannot be removed once they are spinned up.</p><p>PredictionIO Event Server will be launched on all storage instances.</p><h3 id='networking' class='header-anchors'>Networking</h3><p>The stack will automatically create a VPC and a subnet with an Internet gateway. All cluster instances will be launched inside this subnet using a single security group that enables all TCP communications among all instances within the same group. All compute instances (including those that are launched after stack creation) will receive public IPs. All core storage instances will receive public Elastic IPs.</p><h2 id='step-by-step' class='header-anchors'>Step-by-Step</h2><p>First, you need to have an active Amazon Web Services account with permissions to use the following services:</p> <ul> <li>Auto Scaling</li> <li>CloudFormation</li> <li>EC2</li> <li>VPC</li> </ul> <h3 id='subscribe-to-predictionio-cluster' class='header-anchors'>Subscribe to PredictionIO Cluster</h3><p>Before you can start using PredictionIO CloudFormation template, you will need to subscribe to PredictionIO Cluster AMI through AWS Marketplace. To subscribe, go to this <a href="https://aws.amazon.com/marketplace/pp/B00S74CY0A">link</a>. Click the yellow &quot;Continue&quot; button on the next screen.</p><p><img alt="AWS Marketplace Subscription Page" src="/images/cloudformation/awsmp-1-609eb919.png"/></p><p>In the next screen, click the &quot;Manual Launch&quot; tab, then select your preferred pricing model. Pick your desired version, then click &quot;Accept Terms&quot;.</p><p><img alt="AWS Marketplace Term Page" src="/images/cloudformation/awsmp-2-7dd613ba.png"/></p><p>Once your subscription is in place, you may proceed to the next section.</p><h3 id='start-using-cloudformation' class='header-anchors'>Start Using CloudFormation</h3><p>From your main AWS console, locate CloudFormation and click on it.</p><p><img alt="CloudFormation on AWS Console" src="/images/cloudformation/cf-01-13c7f924.png"/></p><p>This will bring you to the CloudFormation console below.</p><p><img alt="CloudFormation Console" src="/images/cloudformation/cf-02-61cd8e67.png"/></p><h3 id='select-the-predictionio-cloudformation-stack-template' class='header-anchors'>Select the PredictionIO CloudFormation Stack Template</h3><p>From the CloudFormation console, click on the <strong>Create New Stack</strong> blue button as shown above. This will bring up the <strong>Select Template</strong> screen. Name your stack as you like. Within the <em>Template</em> section, choose <strong>Specify an Amazon S3 template URL</strong>, and put <a href="https://s3.amazonaws.com/cloudformation.prediction.io/0.13.0/pio.json">https://s3.amazonaws.com/cloudformation.prediction.io/0.13.0/pio.json</a> as the value.</p><p><img alt="CloudFormation Stack Template Selection" src="/images/cloudformation/cf-03-d017fa2d.png"/></p><p>Click <strong>Next</strong> when you are done.</p><h3 id='specify-stack-parameters' class='header-anchors'>Specify Stack Parameters</h3><p>The next screen shows the stack parameters. You must enter your AWS SSH key pair. For the other parameters, you can change them to meet your needs or simply use the default values.</p><p><img alt="Stack Parameters" src="/images/cloudformation/cf-04-6b545f50.png"/></p> <table><thead> <tr> <th>Parameter</th> <th>Description</th> </tr> </thead><tbody> <tr> <td>AWS-KeyPair</td> <td>The AWS SSH key pair name that can be used to access all instances in the cluster.</td> </tr> <tr> <td>AvailabilityZone</td> <td>Specify the availability zone that the PredictionIO cluster will be launched in. All instances of the cluster will be launched into the same zone for optimal network performance between one another.</td> </tr> <tr> <td>ComputeInstanceType</td> <td>The EC2 instance type of all compute instances. Memory-optimized EC2 instances are recommended.</td> </tr> <tr> <td>ComputeInstanceExtra</td> <td>Number of extra compute instances besides the core compute instance. This can be increased and decreased.</td> </tr> <tr> <td>StorageInstanceExtra</td> <td>Number of extra storage instances besides core storage instances. <strong>Never decrease this value or you will risk data corruption.</strong></td> </tr> <tr> <td>StorageInstanceExtraSize</td> <td>Size in GB of each extra storage instance. This can be changed when you add an extra storage instance.</td> </tr> <tr> <td>StorageInstanceExtraVolumeType</td> <td>The EBS volume type of each extra storage instance. Valid values are <em>standard</em> and <em>gp2</em>. This can be changed when you add an extra storage instance.</td> </tr> <tr> <td>StorageInstanceType</td> <td>The EC2 instance type of all storage instances. General purpose EC2 instances are recommended.</td> </tr> <tr> <td>StorageInstanceSize</td> <td>Size in GB of each core storage instance. This cannot be changed once the cluster is launched.</td> </tr> <tr> <td>StorageInstanceVolumeType</td> <td>The EBS volume type of each core storage instance. Valid values are <em>standard</em> and <em>gp2</em>. This cannot be changed once the cluster is launched.</td> </tr> </tbody></table> <p>Click <strong>Next</strong> when you are done. You will arrive at the <strong>Options</strong> screen. You can skip this step if you do not have other options to specify.</p><p>At the <strong>Review</strong> screen, click <strong>Create</strong> to finish.</p><h2 id='using-the-cluster' class='header-anchors'>Using the Cluster</h2><p>You should see the following when the cluster is being created after the previous step.</p><p><img alt="Stack Creation" src="/images/cloudformation/cf-05-92ee63c2.png"/></p><p>Once the stack creation has finished, you can click on <strong>Events</strong> and select <strong>Outputs</strong> to arrive to the following screen.</p><p><img alt="Completed Stack" src="/images/cloudformation/cf-06-b36528fa.png"/></p><p>Take note of <strong>PIOComputeMasterPublicIp</strong> and <strong>PIOStorageMasterPublicIp</strong>. We will now access the cluster and make sure everything is in place.</p><div class="alert-message warning"><p>Sometimes the stack is created successfully but not all cluster services would launch due to potential network glitches or system issues within a cluster instance. In this case, simply delete and create the stack again.</p></div><h3 id='verify-compute-instances' class='header-anchors'>Verify Compute Instances</h3><p>SSH to the master compute instance using the <strong>PIOComputeMasterPublicIp</strong>. In this example, let us assume the IP address be 54.175.145.84, and your private key file be <strong>yourkey.pem</strong>.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>ssh -i yourkey.pem -A -L 8080:localhost:8080 ubuntu@54.175.145.84
+<!DOCTYPE html><html><head><title>Deploying with AWS CloudFormation</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Deploying with AWS CloudFormation"/><link rel="canonical" href="https://predictionio.apache.org/system/deploy-cloudformation/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script 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class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="page-title"><h1>Deploying with AWS CloudFormation</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#step-by-step">Step-by-Step</a> </li> <li> <a href="#using-the-cluster">Using the Cluster</a> </li> <li> <a href="#scaling-the-cluster">Scaling the Cluster</a> </li> <li> <a href="#support-and-pricing">Support and Pricing</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/system/deploy-cloudformation.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="page-title"><h1>Deploying with AWS CloudFormation</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>You can scale PredictionIO on AWS with <a href="http://aws.amazon.com/cloudformation/">CloudFormation</a>. Here we have defined a PredictionIO CloudFormation stack that you can deploy a functional, fully distributed PredictionIO cluster in minutes.</p><h3 id='instances' class='header-anchors'>Instances</h3><p>The PredictionIO CloudFormation stack creates two types of instance: <strong>compute and storage</strong>. By default, the stack will launch <strong>1 compute Instance and 3 Storage instances</strong>.</p><p>The compute instance <em>(ComputeInstance)</em> acts as Spark master. You can launch extra compute instances <em>(ComputeInstanceExtra)</em> by updating the stack. The storage instances <em>(StorageInstance)</em> form the core of the HDFS, ZooKeeper quorum, and HBase storage. Extra storage instances <em>(StorageInstanceExtra)</em> can be added to the cluster by updating the stack. They cannot be removed once they are spinned up.</p><p>PredictionIO Event Server will be launched on all storage instances.</p><h3 id='networking' class='header-anchors'>Networking</h3><p>The stack will automatically create a VPC and a subnet with an Internet gateway. All cluster instances will be launched inside this subnet using a single security group that enables all TCP communications among all instances within the same group. All compute instances (including those that are launched after stack creation) will receive public IPs. All core storage instances will receive public Elastic IPs.</p><h2 id='step-by-step' class='header-anchors'>Step-by-Step</h2><p>First, you need to have an active Amazon Web Services account with permissions to use the following services:</p> <ul> <li>Auto Scaling</li> <li>CloudFormation</li> <li>EC2</li> <li>VPC</li> </ul> <h3 id='subscribe-to-predictionio-cluster' class='header-anchors'>Subscribe to PredictionIO Cluster</h3><p>Before you can start using PredictionIO CloudFormation template, you will need to subscribe to PredictionIO Cluster AMI through AWS Marketplace. To subscribe, go to this <a href="https://aws.amazon.com/marketplace/pp/B00S74CY0A">link</a>. Click the yellow &quot;Continue&quot; button on the next screen.</p><p><img alt="AWS Marketplace Subscription Page" src="/images/cloudformation/awsmp-1-609eb919.png"/></p><p>In the next screen, click the &quot;Manual Launch&quot; tab, then select your preferred pricing model. Pick your desired version, then click &quot;Accept Terms&quot;.</p><p><img alt="AWS Marketplace Term Page" src="/images/cloudformation/awsmp-2-7dd613ba.png"/></p><p>Once your subscription is in place, you may proceed to the next section.</p><h3 id='start-using-cloudformation' class='header-anchors'>Start Using CloudFormation</h3><p>From your main AWS console, locate CloudFormation and click on it.</p><p><img alt="CloudFormation on AWS Console" src="/images/cloudformation/cf-01-13c7f924.png"/></p><p>This will bring you to the CloudFormation console below.</p><p><img alt="CloudFormation Console" src="/images/cloudformation/cf-02-61cd8e67.png"/></p><h3 id='select-the-predictionio-cloudformation-stack-template' class='header-anchors'>Select the PredictionIO CloudFormation Stack Template</h3><p>From the CloudFormation console, click on the <strong>Create New Stack</strong> blue button as shown above. This will bring up the <strong>Select Template</strong> screen. Name your stack as you like. Within the <em>Template</em> section, choose <strong>Specify an Amazon S3 template URL</strong>, and put <a href="https://s3.amazonaws.com/cloudformation.prediction.io/0.14.0/pio.json">https://s3.amazonaws.com/cloudformation.prediction.io/0.14.0/pio.json</a> as the value.</p><p><img alt="CloudFormation Stack Template Selection" src="/images/cloudformation/cf-03-d017fa2d.png"/></p><p>Click <strong>Next</strong> when you are done.</p><h3 id='specify-stack-parameters' class='header-anchors'>Specify Stack Parameters</h3><p>The next screen shows the stack parameters. You must enter your AWS SSH key pair. For the other parameters, you can change them to meet your needs or simply use the default values.</p><p><img alt="Stack Parameters" src="/images/cloudformation/cf-04-6b545f50.png"/></p> <table><thead> <tr> <th>Parameter</th> <th>Description</th> </tr> </thead><tbody> <tr> <td>AWS-KeyPair</td> <td>The AWS SSH key pair name that can be used to access all instances in the cluster.</td> </tr> <tr> <td>AvailabilityZone</td> <td>Specify the availability zone that the PredictionIO cluster will be launched in. All instances of the cluster will be launched into the same zone for optimal network performance between one another.</td> </tr> <tr> <td>ComputeInstanceType</td> <td>The EC2 instance type of all compute instances. Memory-optimized EC2 instances are recommended.</td> </tr> <tr> <td>ComputeInstanceExtra</td> <td>Number of extra compute instances besides the core compute instance. This can be increased and decreased.</td> </tr> <tr> <td>StorageInstanceExtra</td> <td>Number of extra storage instances besides core storage instances. <strong>Never decrease this value or you will risk data corruption.</strong></td> </tr> <tr> <td>StorageInstanceExtraSize</td> <td>Size in GB of each extra storage instance. This can be changed when you add an extra storage instance.</td> </tr> <tr> <td>StorageInstanceExtraVolumeType</td> <td>The EBS volume type of each extra storage instance. Valid values are <em>standard</em> and <em>gp2</em>. This can be changed when you add an extra storage instance.</td> </tr> <tr> <td>StorageInstanceType</td> <td>The EC2 instance type of all storage instances. General purpose EC2 instances are recommended.</td> </tr> <tr> <td>StorageInstanceSize</td> <td>Size in GB of each core storage instance. This cannot be changed once the cluster is launched.</td> </tr> <tr> <td>StorageInstanceVolumeType</td> <td>The EBS volume type of each core storage instance. Valid values are <em>standard</em> and <em>gp2</em>. This cannot be changed once the cluster is launched.</td> </tr> </tbody></table> <p>Click <strong>Next</strong> when you are done. You will arrive at the <strong>Options</strong> screen. You can skip this step if you do not have other options to specify.</p><p>At the <strong>Review</strong> screen, click <strong>Create</strong> to finish.</p><h2 id='using-the-cluster' class='header-anchors'>Using the Cluster</h2><p>You should see the following when the cluster is being created after the previous step.</p><p><img alt="Stack Creation" src="/images/cloudformation/cf-05-92ee63c2.png"/></p><p>Once the stack creation has finished, you can click on <strong>Events</strong> and select <strong>Outputs</strong> to arrive to the following screen.</p><p><img alt="Completed Stack" src="/images/cloudformation/cf-06-b36528fa.png"/></p><p>Take note of <strong>PIOComputeMasterPublicIp</strong> and <strong>PIOStorageMasterPublicIp</strong>. We will now access the cluster and make sure everything is in place.</p><div class="alert-message warning"><p>Sometimes the stack is created successfully but not all cluster services would launch due to potential network glitches or system issues within a cluster instance. In this case, simply delete and create the stack again.</p></div><h3 id='verify-compute-instances' class='header-anchors'>Verify Compute Instances</h3><p>SSH to the master compute instance using the <strong>PIOComputeMasterPublicIp</strong>. In this example, let us assume the IP address be 54.175.145.84, and your private key file be <strong>yourkey.pem</strong>.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>ssh -i yourkey.pem -A -L 8080:localhost:8080 ubuntu@54.175.145.84
 </pre></td></tr></tbody></table> </div> <p>Once you are in, point your web browser to <a href="http://localhost:8080">http://localhost:8080</a>. You should see something similar to the following.</p><p><img alt="Example Spark UI" src="/images/cloudformation/spark-019c2cf1.png"/></p><div class="alert-message note"><p>In the example above <strong>NumberOfComputeWorkers</strong> is <strong>2</strong>. This is because the example has 1 compute instance and 1 extra compute instance. If you do not have any extra compute instances, you will see only 1 worker on the above page.</p></div><h3 id='verify-storage-instances' class='header-anchors'>Verify Storage Instances</h3><p>SSH to the storage instance using the <strong>PIOStorageMasterPublicIp</strong>. In this example, let us assume the IP address be 54.175.1.36, and your private key file be <strong>yourkey.pem</strong>.</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>ssh -i yourkey.pem -A -L 50070:localhost:50070 -L 16010:localhost:16010 -L 16030:localhost:16030 ubuntu@54.175.1.36
 </pre></td></tr></tbody></table> </div> <p>Once you are in, point your web browser to <a href="http://localhost:50070">http://localhost:50070</a> and click on <strong>Datainstances</strong> at the top menu. You should see the following page.</p><p><img alt="Example HDFS UI" src="/images/cloudformation/hdfs-51f0231f.png"/></p><div class="alert-message warning"><p>All <strong>3 storage instances</strong> must be up for proper operation.</p></div><p>If all <strong>3 storage instances</strong> are working properly, you can then verify HBase by pointing your web browser to <a href="http://localhost:16010">http://localhost:16010</a>. You should see something similar to the following.</p><p><img alt="Example HBase UI" src="/images/cloudformation/hbase-32538c47.png"/></p><p>If you do not specify any extra storage instances, you should see 2 region servers. There should also be 1 backup master.</p><h3 id='running-quick-start' class='header-anchors'>Running Quick Start</h3><p>You can now start with the fully-distributed PredictionIO cluster. Let&#39;s start with the <a href="/templates/recommendation/quickstart/">recommendation quick start</a> with a few twists.</p> <ol> <li><p>Skip the installation steps and run <code>pio status</code>. You should see everything functional.</p></li> <li><p>Run through the section <strong>Create a Sample App</strong> as described. The installation directory of PredictionIO is <code>/opt/PredictionIO</code>.</p></li> <li><p>Run through the section <strong>Collecting Data</strong> as described, except that you will be connecting to the Event Server at the master core storage instance. Assuming the private IP of the master core storage instance is <code>10.0.0.123</code>, add <code>--url http://10.0.0.123:7070</code> to the <code>import_eventserver.py</code> command.</p></li> <li><p>Copy HBase configuration to the engine template directory. The full path of the configuration file is <code>/opt/hbase-0.98.9-hadoop2/conf/hbase-site.xml</code>. (This step will not be required in future releases.)</p></li> <li><p>Run through the section <strong>Deploy the Engine as a Service</strong> up to the subsection <strong>Training</strong>. Assuming the private DNS name of the master compute instance is <code>ip-10-0-0-234.ec2.internal</code>, add <code>-- --master spark://ip-10-0-0-234.ec2.internal:7077</code> after the <code>pio train</code> command. This will send the training to the compute cluster instead of the local machine. The Spark master URL must match exactly the one shown on its web UI. Repeat the same steps for subsection <strong>Deploying</strong>, which will create an Engine Server backed by the compute cluster.</p></li> </ol> <h2 id='scaling-the-cluster' class='header-anchors'>Scaling the Cluster</h2><p>As your data size and/or audience grow, you can scale your cluster to handle more workload or decrease turnaround time. In this section, we will provide some general guidelines about when and how to scale your cluster with CloudFormation.</p><h3 id='scaling-compute-instances' class='header-anchors'>Scaling Compute Instances</h3><p>You can increase compute instances to reduce training time <em>($pio train)</em> and the time to query an engine server. You can also check the [Spark Master Web UI] to see if you need additional compute power.</p><p>Notice that for compute instances, you can increase or decrease the number of extra compute instances <em>(ComputeInstanceExtra)</em> as much as you like. The extra compute instances will join the master and become slave compute instances as Spark workers.</p><p>Let us begin by adding 2 extra compute instances. At the CloudFormation console, right click on the cluster stack and click on <strong>Update Stack</strong>.</p><p><img alt="Updating Stack to Add Extra Compute Instances" src="/images/cloudformation/compute-1-c572ea84.png"/></p><p>At the <strong>Select Template</strong> screen, make sure <strong>Use existing template</strong> is picked, then click <strong>Next</strong>.</p><p>At the <strong>Specify Parameters</strong> screen, increase the value of <strong>ComputeInstanceExtra</strong> to <strong>2</strong>, then click <strong>Next</strong>.</p><p><img alt="Adding 2 Extra Compute Instances" src="/images/cloudformation/compute-2-f7da8e72.png"/></p><p>At the <strong>Options</strong> screen, leave everything unchanged, and click <strong>Next</strong>.</p><p>At the <strong>Review</strong> screen, make sure <strong>ComputeInstanceExtra</strong> is now updated to <strong>2</strong>. Finish by clicking <strong>Update</strong>.</p><p><img alt="Review Changes of Adding Extra Compute Instances" src="/images/cloudformation/compute-3-ee5fc6a8.png"/></p><p>You will be brought back to the CloudFormation console. You should see the stack status changed to <strong>UPDATE_IN_PROGRESS</strong>.</p><p><img alt="Adding Extra Compute Instances In Progress" src="/images/cloudformation/compute-4-67fe0caa.png"/></p><p>Once the status become <strong>UPDATE_COMPLETED</strong>, you will have 2 extra compute instances. Notice that during the update, your cluster is still functional and any existing work will not be affected. If you are downscaling, existing work might be affected during the update process.</p><h3 id='scaling-storage-instances' class='header-anchors'>Scaling Storage Instances</h3><p>You can scale your storage instances when you are about to run out of space. You can check your storage usage at the [Hadoop NameNode web UI].</p><div class="alert-message warning"><p>For storage instances, you can only increase the number of extra storage instances <em>(StorageInstanceExtra)</em> within the bounds of AWS EC2 limits. Decreasing the instances will risk data corruption.</p></div><p>Let us begin by adding 2 extra storage instances. At the CloudFormation console, right click on the cluster stack and click on <strong>Update Stack</strong>.</p><p><img alt="Updating Stack to Add Extra Storage Instances" src="/images/cloudformation/compute-1-c572ea84.png"/></p><p>At the <strong>Select Template</strong> screen, make sure <strong>Use existing template</strong> is picked, then click <strong>Next</strong>.</p><p>At the <strong>Specify Parameters</strong> screen, increase the value of <strong>StorageInstanceExtra</strong> to <strong>2</strong>, and set the value of <strong>StorageInstanceExtraSize</strong> to <strong>100</strong>, then click <strong>Next</strong>. Notice that whenever you add an extra storage instance, you can change its size to a new value. The new size will not affect existing storage instances and your data will be safe.</p><p><img alt="Adding 2 Extra Storage Instances" src="/images/cloudformation/storage-1-ca3ae3a6.png"/></p><p>At the <strong>Options</strong> screen, leave everything unchanged, and click <strong>Next</strong>.</p><p>At the <strong>Review</strong> screen, make sure <strong>StorageInstanceExtra</strong> is now updated to <strong>2</strong>, and <strong>StorageInstanceExtraSize</strong> is updated to <strong>100</strong>. Finish by clicking <strong>Update</strong>.</p><p><img alt="Review Changes of Adding Extra Storage Instances" src="/images/cloudformation/storage-2-9395c9f2.png"/></p><p>You will be brought back to the CloudFormation console. You should see the stack status changed to <strong>UPDATE_IN_PROGRESS</strong>.</p><p><img alt="Adding Extra Compute Instances In Progress" src="/images/cloudformation/compute-4-67fe0caa.png"/></p><p>Once the status become <strong>UPDATE_COMPLETED</strong>, you will have 2 extra storage instances. Notice that during the up-scaling update, your cluster is still functional and existing work will not be affected. They may be affected during downscale.</p><h2 id='support-and-pricing' class='header-anchors'>Support and Pricing</h2><p>PredictionIO Cluster comes with Enterprise Support. For pricing and support details, please contact <a href="mailto:support@prediction.io">support@prediction.io</a>.</p></div></div></div></div><footer><div class="container"><div class="seperator"></div><div class="row"><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Community</h4><ul><li><a href="//predictionio.apache.org/install/" target="blank">Download</a></li><li><a href="//predictionio.apache.org/" target="blank">Docs</a></li><li><a href="//github.com/apache/predictionio" target="blank">GitHub</a></li><li><a href="mailto:user-subscribe@predictionio.apache.org" target="blank">Subscribe to User Mailing List</a></li><li><a href="//stackoverflow.com/questions/tagged/predictionio" target="blank">Stackoverflow</a></li></ul></div></div><div class="col-md-6 footer-link-column"><div class="footer-link-column-row"><h4>Contribute</h4><ul><li><a href="//predictionio.apache.org/community/contribute-code/" target="blank">Contribute</a></li><li><a href="//github.com/apache/predictionio" target="blank">Source Code</a></li><li><a href="//issues.apache.org/jira/browse/PIO" target="blank">Bug Tracker</a></li><li><a href="mailto:dev-subscribe@predictionio.apache.org" target="blank">Subscribe to Development Mailing List</a></li></ul></div></div></div><div class="row"><div class="col-md-12 footer-link-column"><p>Apache PredictionIO, PredictionIO, Apache, the Apache feather logo, and the Apache PredictionIO project logo are either registered trademarks or trademarks of The Apache Software Foundation in the United States and other countries.</p><p>All other marks mentioned may be trademarks or registered trademarks of their respective owners.</p></div></div></div><div id="footer-bottom"><div class="container"><div class="row"><div class="col-md-12"><div id="footer-logo-wrapper"><img alt="PredictionIO" src="/images/logos/logo-white-d1e9c6e6.png"/><span>®</span></div><div id="social-icons-wrapper"><a class="github-button" href="https://github.com/apache/predictionio" data-icon="octicon-star" data-show-count="true" aria-label="Star apache/predictionio on GitHub">Star</a> <a class="github-button" href="https://github.com/apache/predictionio/fork" data-icon="octicon-repo-forked" data-show-count="true" aria-label="Fork apache/predictionio on GitHub">Fork</a> <script id="github-bjs" async="" defer="" src="https://buttons.github.io/buttons.js"></script><a href="https://twitter.com/predictionio" target="blank"><img alt="PredictionIO on Twitter" src="/images/icons/twitter-ea9dc152.png"/></a> <a href="https://www.facebook.com/predictionio" target="blank"><img alt="PredictionIO on Facebook" src="/images/icons/facebook-5c57939c.png"/></a> </div></div></div></div></div></footer></div><script>(function(w,d,t,u,n,s,e){w['SwiftypeObject']=n;w[n]=w[n]||function(){
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-<!DOCTYPE html><html><head><title>Quick Start - Classification Engine Template</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Quick Start - Classification Engine Template"/><link rel="canonical" href="https://predictionio.apache.org/templates/classification/quickstart/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script 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id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Quick Start - Classification Engine Template</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final active" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">PredictionIO® Official Templates</a><span class="spacer">&gt;</span></li><li><a href="#">Classification</a><span class="spacer">&gt;</span></li><li><span class="last">Quick Start</span></li></ul></div><div id="page-title"><h1>Quick Start - Classification Engine Template</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#usage">Usage</a> </li> <li> <a href="#1-install-and-run-predictionio">1. Install and Run PredictionIO</a> </li> <li> <a href="#2-create-a-new-engine-from-an-engine-template">2. Create a new Engine from an Engine Template</a> </li> <li> <a href="#3-generate-an-app-id-and-access-key">3. Generate an App ID and Access Key</a> </li> <li> <a href="#4-collecting-data">4. Collecting Data</a> </li> <li> <a href="#5-deploy-the-engine-as-a-service">5. Deploy the Engine as a Service</a> </li> <li> <a href="#6-use-the-engine">6. Use the Engine</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/templates/classification/quickstart.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">PredictionIO® Official Templates</a><span class="spacer">&gt;</span></li><li><a href="#">Classification</a><span class="spacer">&gt;</span></li><li><span class="last">Quick Start</span></li></ul></div><div id="page-title"><h1>Quick Start - Classification Engine Template</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>An engine template is an almost-complete implementation of an engine. PredictionIO&#39;s Classification Engine Template has integrated <strong>Apache Spark MLlib</strong>&#39;s Naive Bayes algorithm by default.</p><p>The default use case of Classification Engine Template is to predict the service plan (<em>plan</em>) a user will subscribe to based on his 3 properties: <em>attr0</em>, <em>attr1</em> and <em>attr2</em>.</p><p>You can customize it easily to fit your specific use case and needs.</p><p>We are going to show you how to create your own classification engine for production use based on this template.</p><h2 id='usage' class='header-anchors'>Usage</h2><h3 id='event-data-requirements' class='header-anchors'>Event Data Requirements</h3><p>By default, the template requires the following events to be collected:</p> <ul> <li>user $set event, which set the attributes of the user</li> </ul> <div class="alert-message note"><p>You can customize to use other event.</p></div><h3 id='input-query' class='header-anchors'>Input Query</h3> <ul> <li>individual attributes values (for version &gt;= v0.3.1)</li> </ul> <div class="alert-message warning"><p>for version &lt; v0.3.1, it is array of features values</p></div><h3 id='output-predictedresult' class='header-anchors'>Output PredictedResult</h3> <ul> <li>the predicted label</li> </ul> <h2 id='1.-install-and-run-predictionio' class='header-anchors'>1. Install and Run PredictionIO</h2> <p>First you need to <a href="/install">install PredictionIO 0.13.0</a> (if you haven&#39;t done it).</p><p>Let&#39;s say you have installed PredictionIO at <code>/home/yourname/PredictionIO/</code>. For convenience, add PredictionIO&#39;s binary command path to your <code>PATH</code>, i.e. <code>/home/yourname/PredictionIO/bin</code>:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nv">PATH</span><span class="o">=</span><span class="nv">$PATH</span>:/home/yourname/PredictionIO/bin; <span class="nb">export </span>PATH
+<!DOCTYPE html><html><head><title>Quick Start - Classification Engine Template</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Quick Start - Classification Engine Template"/><link rel="canonical" href="https://predictionio.apache.org/templates/classification/quickstart/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script 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id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Quick Start - Classification Engine Template</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final active" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">PredictionIO® Official Templates</a><span class="spacer">&gt;</span></li><li><a href="#">Classification</a><span class="spacer">&gt;</span></li><li><span class="last">Quick Start</span></li></ul></div><div id="page-title"><h1>Quick Start - Classification Engine Template</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#usage">Usage</a> </li> <li> <a href="#1-install-and-run-predictionio">1. Install and Run PredictionIO</a> </li> <li> <a href="#2-create-a-new-engine-from-an-engine-template">2. Create a new Engine from an Engine Template</a> </li> <li> <a href="#3-generate-an-app-id-and-access-key">3. Generate an App ID and Access Key</a> </li> <li> <a href="#4-collecting-data">4. Collecting Data</a> </li> <li> <a href="#5-deploy-the-engine-as-a-service">5. Deploy the Engine as a Service</a> </li> <li> <a href="#6-use-the-engine">6. Use the Engine</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/templates/classification/quickstart.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">PredictionIO® Official Templates</a><span class="spacer">&gt;</span></li><li><a href="#">Classification</a><span class="spacer">&gt;</span></li><li><span class="last">Quick Start</span></li></ul></div><div id="page-title"><h1>Quick Start - Classification Engine Template</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>An engine template is an almost-complete implementation of an engine. PredictionIO&#39;s Classification Engine Template has integrated <strong>Apache Spark MLlib</strong>&#39;s Naive Bayes algorithm by default.</p><p>The default use case of Classification Engine Template is to predict the service plan (<em>plan</em>) a user will subscribe to based on his 3 properties: <em>attr0</em>, <em>attr1</em> and <em>attr2</em>.</p><p>You can customize it easily to fit your specific use case and needs.</p><p>We are going to show you how to create your own classification engine for production use based on this template.</p><h2 id='usage' class='header-anchors'>Usage</h2><h3 id='event-data-requirements' class='header-anchors'>Event Data Requirements</h3><p>By default, the template requires the following events to be collected:</p> <ul> <li>user $set event, which set the attributes of the user</li> </ul> <div class="alert-message note"><p>You can customize to use other event.</p></div><h3 id='input-query' class='header-anchors'>Input Query</h3> <ul> <li>individual attributes values (for version &gt;= v0.3.1)</li> </ul> <div class="alert-message warning"><p>for version &lt; v0.3.1, it is array of features values</p></div><h3 id='output-predictedresult' class='header-anchors'>Output PredictedResult</h3> <ul> <li>the predicted label</li> </ul> <h2 id='1.-install-and-run-predictionio' class='header-anchors'>1. Install and Run PredictionIO</h2> <p>First you need to <a href="/install">install PredictionIO 0.14.0</a> (if you haven&#39;t done it).</p><p>Let&#39;s say you have installed PredictionIO at <code>/home/yourname/PredictionIO/</code>. For convenience, add PredictionIO&#39;s binary command path to your <code>PATH</code>, i.e. <code>/home/yourname/PredictionIO/bin</code>:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nv">PATH</span><span class="o">=</span><span class="nv">$PATH</span>:/home/yourname/PredictionIO/bin; <span class="nb">export </span>PATH
 </pre></td></tr></tbody></table> </div> <div class="alert-message note"><p>If you launched <strong>PredictionIO AWS instance</strong>, the path is located at <code>/opt/PredictionIO/bin</code>.</p></div><p>Once you have completed the installation process, please make sure all the components (PredictionIO Event Server, Elasticsearch, and HBase) are up and running.</p><div class="alert-message note"><p>If you launched <strong>PredictionIO AWS instance</strong>, you can skip <code>pio-start-all</code>. All components should have been started automatically.</p></div><p>If you are using PostgreSQL or MySQL, run the following to start PredictionIO Event Server:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio eventserver &amp;
 </pre></td></tr></tbody></table> </div> <p>If instead you are running HBase and Elasticsearch, run the following to start all PredictionIO Event Server, HBase, and Elasticsearch:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio-start-all
 </pre></td></tr></tbody></table> </div> <p>You can check the status by running:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio status
@@ -32,7 +32,7 @@
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>               MyApp1 |    1 | 3mZWDzci2D5YsqAnqNnXH9SB6Rg3dsTBs8iHkK6X2i54IQsIZI1eEeQQyMfs7b3F | <span class="o">(</span>all<span class="o">)</span>
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>               MyApp2 |    2 | io5lz6Eg4m3Xe4JZTBFE13GMAf1dhFl6ZteuJfrO84XpdOz9wRCrDU44EUaYuXq5 | <span class="o">(</span>all<span class="o">)</span>
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span> Finished listing 2 app<span class="o">(</span>s<span class="o">)</span>.
-</pre></td></tr></tbody></table> </div> <p><a href="#"></a></p> <h2 id='4.-collecting-data' class='header-anchors'>4. Collecting Data</h2><p>Next, let&#39;s collect some training data. By default, the Classification Engine Template reads 4 properties of a user record: attr0, attr1, attr2 and plan. This templates requires &#39;$set&#39; user events.</p><div class="alert-message info"><p>This template can easily be customized to use different or more number of attributes.</p></div> <p>You can send these events to PredictionIO Event Server in real-time easily by making a HTTP request or through the provided SDK. Please see <a href="/appintegration/">App Integration Overview</a> for more details how to integrate your app with SDK.</p><p>Let&#39;s try sending events to EventServer with the following <code>curl</code> commands (The corresponding SDK code is showed in other tabs).</p><p>Replace <code>&lt;ACCCESS_KEY&gt;</code> by the Access Key generated in above steps. Note that <code>localhost:7070</code> is the default URL of the Event Server.</p><p>For convenience, set your access key to the shell variable, run:</p><p><code>$ ACCESS_KEY=&lt;ACCESS_KEY&gt;</code></p> <p><a href="#"></a></p> <p>To set properties &quot;attr0&quot;, &quot;attr1&quot;, &quot;attr2&quot; and &quot;plan&quot; for user &quot;u0&quot; on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send <code>$set</code> event for the user. To send this event, run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-97154585-bdd8-4ac4-bdc1-b865b7a1ae09">REST API</a></li> <li data-lang="python"><a href="#tab-cdaef977-7257-4dd1-a048-f3d94d1ce7e4">Python SDK</a></li> <li data-lang="php"><a href="#tab-61a2aac5-dd18-470c-8df7-e0bf2688b5d0">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-ce1da8b5-e8f6-434f-a322-c41cfb66287e">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-7d37edac-5911-4a50-8c47-0cd77c823784">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-97154585-bdd8-4ac4-bdc1-b865b7a1ae09"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p><a href="#"></a></p> <h2 id='4.-collecting-data' class='header-anchors'>4. Collecting Data</h2><p>Next, let&#39;s collect some training data. By default, the Classification Engine Template reads 4 properties of a user record: attr0, attr1, attr2 and plan. This templates requires &#39;$set&#39; user events.</p><div class="alert-message info"><p>This template can easily be customized to use different or more number of attributes.</p></div> <p>You can send these events to PredictionIO Event Server in real-time easily by making a HTTP request or through the provided SDK. Please see <a href="/appintegration/">App Integration Overview</a> for more details how to integrate your app with SDK.</p><p>Let&#39;s try sending events to EventServer with the following <code>curl</code> commands (The corresponding SDK code is showed in other tabs).</p><p>Replace <code>&lt;ACCCESS_KEY&gt;</code> by the Access Key generated in above steps. Note that <code>localhost:7070</code> is the default URL of the Event Server.</p><p>For convenience, set your access key to the shell variable, run:</p><p><code>$ ACCESS_KEY=&lt;ACCESS_KEY&gt;</code></p> <p><a href="#"></a></p> <p>To set properties &quot;attr0&quot;, &quot;attr1&quot;, &quot;attr2&quot; and &quot;plan&quot; for user &quot;u0&quot; on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send <code>$set</code> event for the user. To send this event, run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-3e24c068-0415-469b-ae98-e00fdddaddba">REST API</a></li> <li data-lang="python"><a href="#tab-3f67227a-b521-4a91-a636-4148a5306fc4">Python SDK</a></li> <li data-lang="php"><a href="#tab-3a43cc94-5ab5-4d3d-a29d-2b2dd02d1440">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-9079ce2d-7c84-4a28-86e2-65b233abcbb6">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-dff2ffb6-766d-4c11-8f44-4b9c9fa678fe">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-3e24c068-0415-469b-ae98-e00fdddaddba"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -59,7 +59,7 @@
   }
   "eventTime" : "2014-11-02T09:39:45.618-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-cdaef977-7257-4dd1-a048-f3d94d1ce7e4"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-3f67227a-b521-4a91-a636-4148a5306fc4"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -100,7 +100,7 @@
       <span class="s">"plan"</span> <span class="p">:</span> <span class="nb">int</span><span class="p">(</span><span class="o">&lt;</span><span class="n">VALUE</span> <span class="n">OF</span> <span class="n">PLAN</span><span class="o">&gt;</span><span class="p">)</span>
     <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-61a2aac5-dd18-470c-8df7-e0bf2688b5d0"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-3a43cc94-5ab5-4d3d-a29d-2b2dd02d1440"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
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@@ -137,7 +137,7 @@
    <span class="p">)</span>
 <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-ce1da8b5-e8f6-434f-a322-c41cfb66287e"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-9079ce2d-7c84-4a28-86e2-65b233abcbb6"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -168,7 +168,7 @@
     <span class="p">}</span>
   <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-7d37edac-5911-4a50-8c47-0cd77c823784"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-dff2ffb6-766d-4c11-8f44-4b9c9fa678fe"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -203,7 +203,7 @@
         <span class="s">"plan"</span><span class="o">,</span> <span class="o">&lt;</span><span class="n">VALUE</span> <span class="n">OF</span> <span class="n">PLAN</span><span class="o">&gt;</span>
     <span class="o">));</span>
 <span class="n">client</span><span class="o">.</span><span class="na">createEvent</span><span class="o">(</span><span class="n">event</span><span class="o">);</span>
-</pre></td> </tr></tbody></table> </div> </div> </div> <p>Note that you can also set the properties for the user with multiple <code>$set</code> events (They will be aggregated during engine training).</p><p>To set properties &quot;attr0&quot;, &quot;attr1&quot; and &quot;attr2&quot;, and &quot;plan&quot; for user &quot;u1&quot; at different time, you can send following <code>$set</code> events for the user. To send these events, run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-dc6674e8-3923-4b8f-9532-4f9be94f51fe">REST API</a></li> <li data-lang="python"><a href="#tab-238a8035-de65-4171-a3ff-16ff4b1a0a87">Python SDK</a></li> <li data-lang="php"><a href="#tab-4817076c-eb25-4de6-98a4-2daaa55c8832">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-dbf3238f-6ff6-435e-a4a1-91ff28b81140">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-393f4dd4-7fa1-4d91-904c-031cddd39024">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-dc6674e8-3923-4b8f-9532-4f9be94f51fe"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> </div> <p>Note that you can also set the properties for the user with multiple <code>$set</code> events (They will be aggregated during engine training).</p><p>To set properties &quot;attr0&quot;, &quot;attr1&quot; and &quot;attr2&quot;, and &quot;plan&quot; for user &quot;u1&quot; at different time, you can send following <code>$set</code> events for the user. To send these events, run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-f1f7d9b9-152a-4aee-bc79-d9e78a65b492">REST API</a></li> <li data-lang="python"><a href="#tab-90bdcbe8-e057-4d8e-81cf-122b1a2e4cea">Python SDK</a></li> <li data-lang="php"><a href="#tab-f0407fbe-a048-40b5-9cf4-a5aaa1ee06e3">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-f41b82fd-117c-4460-a7a4-eaeb7551d54a">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-27a5a7b4-2c85-4b9f-9bbb-9ee7a582b3eb">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-f1f7d9b9-152a-4aee-bc79-d9e78a65b492"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -274,7 +274,7 @@
   }
   "eventTime" : "2014-11-02T09:39:45.618-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-238a8035-de65-4171-a3ff-16ff4b1a0a87"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-90bdcbe8-e057-4d8e-81cf-122b1a2e4cea"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -327,7 +327,7 @@
       <span class="s">"plan"</span> <span class="p">:</span> <span class="nb">int</span><span class="p">(</span><span class="o">&lt;</span><span class="n">VALUE</span> <span class="n">OF</span> <span class="n">PLAN</span><span class="o">&gt;</span><span class="p">)</span>
     <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-4817076c-eb25-4de6-98a4-2daaa55c8832"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-f0407fbe-a048-40b5-9cf4-a5aaa1ee06e3"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -390,7 +390,7 @@
 <span class="p">));</span>
 
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-dbf3238f-6ff6-435e-a4a1-91ff28b81140"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-f41b82fd-117c-4460-a7a4-eaeb7551d54a"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -433,7 +433,7 @@
 <span class="p">)</span>
 
 <span class="c1"># Etc...</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-393f4dd4-7fa1-4d91-904c-031cddd39024"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-27a5a7b4-2c85-4b9f-9bbb-9ee7a582b3eb"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -497,17 +497,17 @@
 </pre></td></tr></tbody></table> </div> <p>When the engine is deployed successfully and running, you should see a console message similar to the following:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2</pre></td><td class="code"><pre><span class="o">[</span>INFO] <span class="o">[</span>HttpListener] Bound to /0.0.0.0:8000
 <span class="o">[</span>INFO] <span class="o">[</span>MasterActor] Bind successful. Ready to serve.
-</pre></td></tr></tbody></table> </div> <p>Do not kill the deployed engine process.</p><p>By default, the deployed engine binds to <a href="http://localhost:8000"><a href="http://localhost:8000">http://localhost:8000</a></a>. You can visit that page in your web browser to check its status.</p><p><img alt="Engine Status" src="/images/engine-server-3246414b.png"/></p></p><h2 id='6.-use-the-engine' class='header-anchors'>6. Use the Engine</h2><p>Now, You can try to retrieve predicted results. For example, to predict the label (i.e. <em>plan</em> in this case) of a user with attr0=2, attr1=0 and attr2=0, you send this JSON <code>{ &quot;attr0&quot;:2, &quot;attr1&quot;:0, &quot;attr2&quot;:0 }</code> to the deployed engine and it will return a JSON of the predicted plan. Simply send a query by making a HTTP request or through the <code>EngineClient</code> of an SDK.</p><p>With the deployed engine running, open another terminal and run the following <code>curl</code> command or use SDK to send the query:</p><div class="tabs"> <ul class="control"> <li data-lang="bash"><a href="#tab-3377b81f-1d34-41a0-a00e-c7d82c3234f5">REST API</a></li> <li data-lang="python"><a href="#tab-5cabddca-3eae-4762-979f-647552958433">Python SDK</a></li> <li data-lang="php"><a href="#tab-abdacad3-025e-4f12-9e16-3d1a347ec39d">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-3a0f19cf-c299-4b1c-88ac-17c3b97e432c">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-7cb3cca1-88d9-47d2-b220-524c79575fb3">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="bash" id="tab-3377b81f-1d34-41a0-a00e-c7d82c3234f5"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p>Do not kill the deployed engine process.</p><p>By default, the deployed engine binds to <a href="http://localhost:8000"><a href="http://localhost:8000">http://localhost:8000</a></a>. You can visit that page in your web browser to check its status.</p><p><img alt="Engine Status" src="/images/engine-server-3246414b.png"/></p></p><h2 id='6.-use-the-engine' class='header-anchors'>6. Use the Engine</h2><p>Now, You can try to retrieve predicted results. For example, to predict the label (i.e. <em>plan</em> in this case) of a user with attr0=2, attr1=0 and attr2=0, you send this JSON <code>{ &quot;attr0&quot;:2, &quot;attr1&quot;:0, &quot;attr2&quot;:0 }</code> to the deployed engine and it will return a JSON of the predicted plan. Simply send a query by making a HTTP request or through the <code>EngineClient</code> of an SDK.</p><p>With the deployed engine running, open another terminal and run the following <code>curl</code> command or use SDK to send the query:</p><div class="tabs"> <ul class="control"> <li data-lang="bash"><a href="#tab-390a9ee3-ad09-43df-8baf-94bf4489844f">REST API</a></li> <li data-lang="python"><a href="#tab-2e9d4571-305d-4b5c-900a-e9c17cc0228f">Python SDK</a></li> <li data-lang="php"><a href="#tab-1bad3bed-00ad-4cfa-8996-6e1b14b52777">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-364301be-2320-42fb-b871-fdb55edfad12">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-6852b26f-b86e-4d4a-93dc-5f1d84818782">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="bash" id="tab-390a9ee3-ad09-43df-8baf-94bf4489844f"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3</pre></td> <td class="code"><pre><span class="gp">$ </span>curl -H <span class="s2">"Content-Type: application/json"</span> <span class="se">\</span>
 -d <span class="s1">'{ "attr0":2, "attr1":0, "attr2":0 }'</span> http://localhost:8000/queries.json
 
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-5cabddca-3eae-4762-979f-647552958433"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-2e9d4571-305d-4b5c-900a-e9c17cc0228f"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3</pre></td> <td class="code"><pre><span class="kn">import</span> <span class="nn">predictionio</span>
 <span class="n">engine_client</span> <span class="o">=</span> <span class="n">predictionio</span><span class="o">.</span><span class="n">EngineClient</span><span class="p">(</span><span class="n">url</span><span class="o">=</span><span class="s">"http://localhost:8000"</span><span class="p">)</span>
 <span class="k">print</span> <span class="n">engine_client</span><span class="o">.</span><span class="n">send_query</span><span class="p">({</span><span class="s">"attr0"</span><span class="p">:</span><span class="mi">2</span><span class="p">,</span> <span class="s">"attr1"</span><span class="p">:</span><span class="mi">0</span><span class="p">,</span> <span class="s">"attr2"</span><span class="p">:</span><span class="mi">0</span><span class="p">})</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-abdacad3-025e-4f12-9e16-3d1a347ec39d"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-1bad3bed-00ad-4cfa-8996-6e1b14b52777"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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 3
 4
@@ -526,7 +526,7 @@
 <span class="nb">print_r</span><span class="p">(</span><span class="nv">$response</span><span class="p">);</span>
 
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-3a0f19cf-c299-4b1c-88ac-17c3b97e432c"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-364301be-2320-42fb-b871-fdb55edfad12"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -539,7 +539,7 @@
 <span class="n">response</span> <span class="o">=</span> <span class="n">client</span><span class="p">.</span><span class="nf">send_query</span><span class="p">(</span><span class="s1">'attr0'</span> <span class="o">=&gt;</span> <span class="mi">2</span><span class="p">,</span> <span class="s1">'attr1'</span> <span class="o">=&gt;</span> <span class="mi">0</span><span class="p">,</span> <span class="s1">'attr2'</span> <span class="o">=&gt;</span> <span class="mi">0</span><span class="p">)</span>
 
 <span class="nb">puts</span> <span class="n">response</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-7cb3cca1-88d9-47d2-b220-524c79575fb3"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-6852b26f-b86e-4d4a-93dc-5f1d84818782"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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diff --git a/templates/complementarypurchase/quickstart/index.html b/templates/complementarypurchase/quickstart/index.html
index fc21588..a0db24b 100644
--- a/templates/complementarypurchase/quickstart/index.html
+++ b/templates/complementarypurchase/quickstart/index.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html><head><title>Quick Start - Complementary Purchase Engine Template</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Quick Start - Complementary Purchase Engine Template"/><link rel="canonical" href="https://predictionio.apache.org/templates/complementarypurchase/quickstart/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script src="//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script><script src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: true });}catch(e){}</script></head><body><div id="global"><header><div class="container" id="header-wrapper"><div class="row"><div class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a href="#"></a><a href="http://predictionio.apache.org/"><img alt="Apache PredictionIO" id="logo" src="/images/logos/logo-ee2b9bb3.png"/></a><span>®</span></div><div id="menu-wrapper"><div id="pill-wrapper"><a class="pill left" href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" href="//github.com/apache/predictionio/">OPEN SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md hidden-lg" src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Quick Start - Complementary Purchase Engine Template</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute 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with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="page-title"><h1>Quick Start - Complementary Purchase Engine Template</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#usage">Usage</a> </li> <li> <a href="#1-install-and-run-predictionio">1. Install and Run PredictionIO</a> </li> <li> <a href="#2-create-a-new-engine-from-an-engine-template">2. Create a new Engine from an Engine Template</a> </li> <li> <a href="#3-generate-an-app-id-and-access-key">3. Generate an App ID and Access Key</a> </li> <li> <a href="#4-collecting-data">4. Collecting Data</a> </li> <li> <a href="#5-deploy-the-engine-as-a-service">5. Deploy the Engine as a Service</a> </li> <li> <a href="#6-use-the-engine">6. Use the Engine</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/templates/complementarypurchase/quickstart.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="page-title"><h1>Quick Start - Complementary Purchase Engine Template</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>This engine template recommends the complementary items which most user frequently buy at the same time together with one or more items in the query.</p><h2 id='usage' class='header-anchors'>Usage</h2><h3 id='event-data-requirements' class='header-anchors'>Event Data Requirements</h3><p>By default, the template requires the following events to be collected:</p> <ul> <li>user &#39;buy&#39; item events</li> </ul> <div class="alert-message info"><p>A correct eventTime should be used in order for engine to determine if the items being bought are in the same &#39;basket&#39;.</p></div><div class="alert-message note"><p>You can customize to use other event.</p></div><h3 id='input-query' class='header-anchors'>Input Query</h3> <ul> <li>set of items</li> <li>num of recommends items per condition</li> </ul> <h3 id='output-predictedresult' class='header-anchors'>Output PredictedResult</h3> <ul> <li>array of condition and top n recommended items given the condition. The engine will use each combination of the query items as condition.</li> </ul> <h2 id='1.-install-and-run-predictionio' class='header-anchors'>1. Install and Run PredictionIO</h2> <p>First you need to <a href="/install">install PredictionIO 0.13.0</a> (if you haven&#39;t done it).</p><p>Let&#39;s say you have installed PredictionIO at <code>/home/yourname/PredictionIO/</code>. For convenience, add PredictionIO&#39;s binary command path to your <code>PATH</code>, i.e. <code>/home/yourname/PredictionIO/bin</code>:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nv">PATH</span><span class="o">=</span><span class="nv">$PATH</span>:/home/yourname/PredictionIO/bin; <span class="nb">export </span>PATH
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href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute 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with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="page-title"><h1>Quick Start - Complementary Purchase Engine Template</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#usage">Usage</a> </li> <li> <a href="#1-install-and-run-predictionio">1. Install and Run PredictionIO</a> </li> <li> <a href="#2-create-a-new-engine-from-an-engine-template">2. Create a new Engine from an Engine Template</a> </li> <li> <a href="#3-generate-an-app-id-and-access-key">3. Generate an App ID and Access Key</a> </li> <li> <a href="#4-collecting-data">4. Collecting Data</a> </li> <li> <a href="#5-deploy-the-engine-as-a-service">5. Deploy the Engine as a Service</a> </li> <li> <a href="#6-use-the-engine">6. Use the Engine</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/templates/complementarypurchase/quickstart.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="page-title"><h1>Quick Start - Complementary Purchase Engine Template</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>This engine template recommends the complementary items which most user frequently buy at the same time together with one or more items in the query.</p><h2 id='usage' class='header-anchors'>Usage</h2><h3 id='event-data-requirements' class='header-anchors'>Event Data Requirements</h3><p>By default, the template requires the following events to be collected:</p> <ul> <li>user &#39;buy&#39; item events</li> </ul> <div class="alert-message info"><p>A correct eventTime should be used in order for engine to determine if the items being bought are in the same &#39;basket&#39;.</p></div><div class="alert-message note"><p>You can customize to use other event.</p></div><h3 id='input-query' class='header-anchors'>Input Query</h3> <ul> <li>set of items</li> <li>num of recommends items per condition</li> </ul> <h3 id='output-predictedresult' class='header-anchors'>Output PredictedResult</h3> <ul> <li>array of condition and top n recommended items given the condition. The engine will use each combination of the query items as condition.</li> </ul> <h2 id='1.-install-and-run-predictionio' class='header-anchors'>1. Install and Run PredictionIO</h2> <p>First you need to <a href="/install">install PredictionIO 0.14.0</a> (if you haven&#39;t done it).</p><p>Let&#39;s say you have installed PredictionIO at <code>/home/yourname/PredictionIO/</code>. For convenience, add PredictionIO&#39;s binary command path to your <code>PATH</code>, i.e. <code>/home/yourname/PredictionIO/bin</code>:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nv">PATH</span><span class="o">=</span><span class="nv">$PATH</span>:/home/yourname/PredictionIO/bin; <span class="nb">export </span>PATH
 </pre></td></tr></tbody></table> </div> <div class="alert-message note"><p>If you launched <strong>PredictionIO AWS instance</strong>, the path is located at <code>/opt/PredictionIO/bin</code>.</p></div><p>Once you have completed the installation process, please make sure all the components (PredictionIO Event Server, Elasticsearch, and HBase) are up and running.</p><div class="alert-message note"><p>If you launched <strong>PredictionIO AWS instance</strong>, you can skip <code>pio-start-all</code>. All components should have been started automatically.</p></div><p>If you are using PostgreSQL or MySQL, run the following to start PredictionIO Event Server:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio eventserver &amp;
 </pre></td></tr></tbody></table> </div> <p>If instead you are running HBase and Elasticsearch, run the following to start all PredictionIO Event Server, HBase, and Elasticsearch:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio-start-all
 </pre></td></tr></tbody></table> </div> <p>You can check the status by running:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio status
@@ -32,7 +32,7 @@
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>               MyApp1 |    1 | 3mZWDzci2D5YsqAnqNnXH9SB6Rg3dsTBs8iHkK6X2i54IQsIZI1eEeQQyMfs7b3F | <span class="o">(</span>all<span class="o">)</span>
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>               MyApp2 |    2 | io5lz6Eg4m3Xe4JZTBFE13GMAf1dhFl6ZteuJfrO84XpdOz9wRCrDU44EUaYuXq5 | <span class="o">(</span>all<span class="o">)</span>
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span> Finished listing 2 app<span class="o">(</span>s<span class="o">)</span>.
-</pre></td></tr></tbody></table> </div> <p><a href="#"></a></p> <h2 id='4.-collecting-data' class='header-anchors'>4. Collecting Data</h2><p>Next, let&#39;s collect training data for this Engine. By default, Complementary Purchase Engine Template supports the following entities: <strong>user</strong>, <strong>item</strong>. A user buys an item. This template requires user-buy-item events.</p><p>Note that the engine requires correct buy event time being used in order to determine if the items being bought are in the same &#39;basket&#39;, which is configured by the &#39;basketWindow&#39; parameter. Using an unreal event time for the buy events will cause an incorrect model. If you use SDK, the current time is used as event time by default.</p><div class="alert-message warning"><p>In particular, make sure correct event time is specified if you import data in batch (i.e. not in real time). If the event time is omitted, the SDK will use <strong>current time</strong> as event time which is not the actual time of the buy event in this case!</p></div> <p>You can send these events to PredictionIO Event Server in real-time easily by making a HTTP request or through the provided SDK. Please see <a href="/appintegration/">App Integration Overview</a> for more details how to integrate your app with SDK.</p><p>Let&#39;s try sending events to EventServer with the following <code>curl</code> commands (The corresponding SDK code is showed in other tabs).</p><p>Replace <code>&lt;ACCCESS_KEY&gt;</code> by the Access Key generated in above steps. Note that <code>localhost:7070</code> is the default URL of the Event Server.</p><p>For convenience, set your access key to the shell variable, run:</p><p><code>$ ACCESS_KEY=&lt;ACCESS_KEY&gt;</code></p> <p><a href="#"></a></p> <p>When an user u0 buys item i0 on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send a buy event. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-a3f74040-bb5f-4ee3-ac4d-83b24a357c46">REST API</a></li> <li data-lang="python"><a href="#tab-c04533a6-2753-4ef8-a580-cbeeca658c54">Python SDK</a></li> <li data-lang="php"><a href="#tab-6efa3052-3f1f-412a-a29c-401d59bf2d10">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-35f7e94b-1494-4ab5-a2a0-b9718d8b0797">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-a1fa6aab-edee-4972-a3c3-123a58d90ae3">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-a3f74040-bb5f-4ee3-ac4d-83b24a357c46"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p><a href="#"></a></p> <h2 id='4.-collecting-data' class='header-anchors'>4. Collecting Data</h2><p>Next, let&#39;s collect training data for this Engine. By default, Complementary Purchase Engine Template supports the following entities: <strong>user</strong>, <strong>item</strong>. A user buys an item. This template requires user-buy-item events.</p><p>Note that the engine requires correct buy event time being used in order to determine if the items being bought are in the same &#39;basket&#39;, which is configured by the &#39;basketWindow&#39; parameter. Using an unreal event time for the buy events will cause an incorrect model. If you use SDK, the current time is used as event time by default.</p><div class="alert-message warning"><p>In particular, make sure correct event time is specified if you import data in batch (i.e. not in real time). If the event time is omitted, the SDK will use <strong>current time</strong> as event time which is not the actual time of the buy event in this case!</p></div> <p>You can send these events to PredictionIO Event Server in real-time easily by making a HTTP request or through the provided SDK. Please see <a href="/appintegration/">App Integration Overview</a> for more details how to integrate your app with SDK.</p><p>Let&#39;s try sending events to EventServer with the following <code>curl</code> commands (The corresponding SDK code is showed in other tabs).</p><p>Replace <code>&lt;ACCCESS_KEY&gt;</code> by the Access Key generated in above steps. Note that <code>localhost:7070</code> is the default URL of the Event Server.</p><p>For convenience, set your access key to the shell variable, run:</p><p><code>$ ACCESS_KEY=&lt;ACCESS_KEY&gt;</code></p> <p><a href="#"></a></p> <p>When an user u0 buys item i0 on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send a buy event. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-bd880e08-471d-4497-9be7-578f44d8b1d7">REST API</a></li> <li data-lang="python"><a href="#tab-5bc9c211-ceeb-4727-9852-0d5e5aedf5c9">Python SDK</a></li> <li data-lang="php"><a href="#tab-df384075-13b4-467b-b61d-4baaae42a3eb">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-94b6347c-0e09-450d-88b6-556185429d45">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-bfe6ef92-8e2d-42ca-b8ee-e43dd128a0b3">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-bd880e08-471d-4497-9be7-578f44d8b1d7"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -51,7 +51,7 @@
   "targetEntityId" : "i0",
   "eventTime" : "2014-11-02T09:39:45.618-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-c04533a6-2753-4ef8-a580-cbeeca658c54"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-5bc9c211-ceeb-4727-9852-0d5e5aedf5c9"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -104,7 +104,7 @@
   <span class="n">target_entity_id</span><span class="o">=&lt;</span><span class="n">ITEM</span> <span class="n">ID</span><span class="o">&gt;</span><span class="p">,</span>
   <span class="n">event_time</span><span class="o">=&lt;</span><span class="n">EVENT_TIME</span><span class="o">&gt;</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-6efa3052-3f1f-412a-a29c-401d59bf2d10"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-df384075-13b4-467b-b61d-4baaae42a3eb"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
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@@ -155,7 +155,7 @@
 <span class="p">));</span>
 
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-35f7e94b-1494-4ab5-a2a0-b9718d8b0797"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-94b6347c-0e09-450d-88b6-556185429d45"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -200,7 +200,7 @@
     <span class="s1">'eventTime'</span> <span class="o">=&gt;</span> <span class="o">&lt;</span><span class="no">EVENT_TIME</span><span class="o">&gt;</span>
   <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-a1fa6aab-edee-4972-a3c3-123a58d90ae3"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-bfe6ef92-8e2d-42ca-b8ee-e43dd128a0b3"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -290,7 +290,7 @@
 </pre></td></tr></tbody></table> </div> <p>When the engine is deployed successfully and running, you should see a console message similar to the following:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2</pre></td><td class="code"><pre><span class="o">[</span>INFO] <span class="o">[</span>HttpListener] Bound to /0.0.0.0:8000
 <span class="o">[</span>INFO] <span class="o">[</span>MasterActor] Bind successful. Ready to serve.
-</pre></td></tr></tbody></table> </div> <p>Do not kill the deployed engine process.</p><p>By default, the deployed engine binds to <a href="http://localhost:8000"><a href="http://localhost:8000">http://localhost:8000</a></a>. You can visit that page in your web browser to check its status.</p><p><img alt="Engine Status" src="/images/engine-server-3246414b.png"/></p></p><h2 id='6.-use-the-engine' class='header-anchors'>6. Use the Engine</h2><p>Now, You can query the engine. For example, return top 3 items which are frequently bought with item &quot;s2i1&quot;. You can sending this JSON &#39;{ &quot;items&quot; : [&quot;s2i1&quot;], &quot;num&quot; : 3 }&#39; to the deployed engine. The engine will return a JSON with the recommended items.</p><p>If you include one or more items in the query, the engine will use each combination of the query items as condition, and return recommended items if there is any for this condition. For example, if you query items are [&quot;A&quot;, &quot;B&quot;], then the engine will use [&quot;A&quot;], [&quot;B&quot;], and [&quot;A&quot;, &quot;B&quot;] as condition and try to find top n recommended items for each combination.</p><p>You can simply send a query by making a HTTP request or through the <code>EngineClient</code> of an SDK.</p><p>With the deployed engine running, open another terminal and run the following <code>curl</code> command or use SDK to send the query:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-6f8b790f-e064-443a-b2bf-f7fd6d7b2c25">REST API</a></li> <li data-lang="python"><a href="#tab-1b8d53dc-6d5c-46ec-a544-c13c8a2b2853">Python SDK</a></li> <li data-lang="php"><a href="#tab-c7468228-d1d7-425a-bb21-7702dd079726">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-9f4d8d24-d7ef-4933-8b19-12520c2805df">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-f4930111-a79a-40ba-a9ab-a86dee90ffd5">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-6f8b790f-e064-443a-b2bf-f7fd6d7b2c25"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p>Do not kill the deployed engine process.</p><p>By default, the deployed engine binds to <a href="http://localhost:8000"><a href="http://localhost:8000">http://localhost:8000</a></a>. You can visit that page in your web browser to check its status.</p><p><img alt="Engine Status" src="/images/engine-server-3246414b.png"/></p></p><h2 id='6.-use-the-engine' class='header-anchors'>6. Use the Engine</h2><p>Now, You can query the engine. For example, return top 3 items which are frequently bought with item &quot;s2i1&quot;. You can sending this JSON &#39;{ &quot;items&quot; : [&quot;s2i1&quot;], &quot;num&quot; : 3 }&#39; to the deployed engine. The engine will return a JSON with the recommended items.</p><p>If you include one or more items in the query, the engine will use each combination of the query items as condition, and return recommended items if there is any for this condition. For example, if you query items are [&quot;A&quot;, &quot;B&quot;], then the engine will use [&quot;A&quot;], [&quot;B&quot;], and [&quot;A&quot;, &quot;B&quot;] as condition and try to find top n recommended items for each combination.</p><p>You can simply send a query by making a HTTP request or through the <code>EngineClient</code> of an SDK.</p><p>With the deployed engine running, open another terminal and run the following <code>curl</code> command or use SDK to send the query:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-31190208-d7c8-4bd9-8786-7bc8ef078479">REST API</a></li> <li data-lang="python"><a href="#tab-711ddf25-c4a3-4b8f-a566-9cc45f7a3158">Python SDK</a></li> <li data-lang="php"><a href="#tab-33eef362-81ea-4772-9ed5-8fe341e5f3e2">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-80a779d5-f9bf-44d8-867b-d29f72006750">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-a2f81f73-7c4a-4e5f-8cc6-5b2a063ce06f">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-31190208-d7c8-4bd9-8786-7bc8ef078479"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -303,7 +303,7 @@
 }'</span> <span class="se">\</span>
 http://localhost:8000/queries.json
 
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-1b8d53dc-6d5c-46ec-a544-c13c8a2b2853"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-711ddf25-c4a3-4b8f-a566-9cc45f7a3158"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -314,7 +314,7 @@
   <span class="s">"items"</span> <span class="p">:</span> <span class="p">[</span><span class="s">"s2i1"</span><span class="p">],</span>
   <span class="s">"num"</span> <span class="p">:</span> <span class="mi">3</span>
 <span class="p">})</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-c7468228-d1d7-425a-bb21-7702dd079726"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-33eef362-81ea-4772-9ed5-8fe341e5f3e2"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -341,7 +341,7 @@
 <span class="nb">print_r</span><span class="p">(</span><span class="nv">$response</span><span class="p">);</span>
 
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-9f4d8d24-d7ef-4933-8b19-12520c2805df"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-80a779d5-f9bf-44d8-867b-d29f72006750"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -360,7 +360,7 @@
 <span class="p">)</span>
 
 <span class="nb">puts</span> <span class="n">response</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-f4930111-a79a-40ba-a9ab-a86dee90ffd5"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-a2f81f73-7c4a-4e5f-8cc6-5b2a063ce06f"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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diff --git a/templates/ecommercerecommendation/quickstart/index.html b/templates/ecommercerecommendation/quickstart/index.html
index 5b26555..664d3e1 100644
--- a/templates/ecommercerecommendation/quickstart/index.html
+++ b/templates/ecommercerecommendation/quickstart/index.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html><head><title>Quick Start - E-Commerce Recommendation Engine Template</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Quick Start - E-Commerce Recommendation Engine Template"/><link rel="canonical" href="https://predictionio.apache.org/templates/ecommercerecommendation/quickstart/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script 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id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Quick Start - E-Commerce Recommendation Engine Template</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" 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class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li 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href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final active" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute 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hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">PredictionIO® Official Templates</a><span class="spacer">&gt;</span></li><li><a href="#">E-Commerce Recommendation</a><span class="spacer">&gt;</span></li><li><span class="last">Quick Start</span></li></ul></div><div id="page-title"><h1>Quick Start - E-Commerce Recommendation Engine Template</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#usage">Usage</a> </li> <li> <a href="#1-install-and-run-predictionio">1. Install and Run PredictionIO</a> </li> <li> <a href="#2-create-a-new-engine-from-an-engine-template">2. Create a new Engine from an Engine Template</a> </li> <li> <a href="#3-generate-an-app-id-and-access-key">3. Generate an App ID and Access Key</a> </li> <li> <a href="#4-collecting-data">4. Collecting Data</a> </li> <li> <a href="#5-deploy-the-engine-as-a-service">5. Deploy the Engine as a Service</a> </li> <li> <a href="#6-use-the-engine">6. Use the Engine</a> </li> <li> <a href="#setting-constraint-unavailableitems">Setting constraint "unavailableItems"</a> </li> <li> <a href="#advanced-query">Advanced Query</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/templates/ecommercerecommendation/quickstart.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">PredictionIO® Official Templates</a><span class="spacer">&gt;</span></li><li><a href="#">E-Commerce Recommendation</a><span class="spacer">&gt;</span></li><li><span class="last">Quick Start</span></li></ul></div><div id="page-title"><h1>Quick Start - E-Commerce Recommendation Engine Template</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>This engine template provides personalized recommendation for e-commerce applications with the following features by default:</p> <ul> <li>Exclude out-of-stock items</li> <li>Provide recommendation to new users who sign up after the model is trained</li> <li>Recommend unseen items only (configurable)</li> <li>Recommend popular items if no information about the user is available (added in template version v0.4.0)</li> </ul> <div class="alert-message warning"><p>This template requires PredictionIO version &gt;= 0.9.0</p></div><h2 id='usage' class='header-anchors'>Usage</h2><h3 id='event-data-requirements' class='header-anchors'>Event Data Requirements</h3><p>By default, this template takes the following data from Event Server:</p> <ul> <li>Users&#39; <em>view</em> events</li> <li>Users&#39; <em>buy</em> events</li> <li>Items&#39; with <em>categories</em> properties</li> <li>Constraint <em>unavailableItems</em> set events</li> </ul> <div class="alert-message info"><p>This template can easily be customized to consider more user events such as <em>rate</em> and <em>like</em>.</p></div><p>The <em>view</em> events are used as Training Data to train the model. The algorithm has a parameter <em>unseenOnly</em>; when this parameter is set to true, the engine would recommend unseen items only. You can specify a list of events which are considered as <em>seen</em> events with the algorithm parameter <em>seenEvents</em>. The default values are <em>view</em> and <em>buy</em> events, which means that the engine by default recommends un-viewed and un-bought items only. You can also define your own events which are considered as <em>seen</em>.</p><p>The constraint <em>unavailableItems</em> set events are used to exclude a list of unavailable items (such as out of stock) for all users in real time.</p><h3 id='input-query' class='header-anchors'>Input Query</h3> <ul> <li>UserID</li> <li>Num of items to be recommended</li> <li>List of white-listed item categories (optional)</li> <li>List of white-listed ItemIds (optional)</li> <li>List of black-listed ItemIds (optional)</li> </ul> <p>The template also supports black-list and whitelist. If a whitelist is provided, the engine will include only those products in the recommendation. Likewise, if a blacklist is provided, the engine will exclude those products in the recommendation.</p><h3 id='output-predictedresult' class='header-anchors'>Output PredictedResult</h3> <ul> <li>A ranked list of recommended itemIDs</li> </ul> <h2 id='1.-install-and-run-predictionio' class='header-anchors'>1. Install and Run PredictionIO</h2> <p>First you need to <a href="/install">install PredictionIO 0.13.0</a> (if you haven&#39;t done it).</p><p>Let&#39;s say you have installed PredictionIO at <code>/home/yourname/PredictionIO/</code>. For convenience, add PredictionIO&#39;s binary command path to your <code>PATH</code>, i.e. <code>/home/yourname/PredictionIO/bin</code>:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nv">PATH</span><span class="o">=</span><span class="nv">$PATH</span>:/home/yourname/PredictionIO/bin; <span class="nb">export </span>PATH
+<!DOCTYPE html><html><head><title>Quick Start - E-Commerce Recommendation Engine Template</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Quick Start - E-Commerce Recommendation Engine Template"/><link rel="canonical" href="https://predictionio.apache.org/templates/ecommercerecommendation/quickstart/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script 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id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Quick Start - E-Commerce Recommendation Engine Template</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final active" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">PredictionIO® Official Templates</a><span class="spacer">&gt;</span></li><li><a href="#">E-Commerce Recommendation</a><span class="spacer">&gt;</span></li><li><span class="last">Quick Start</span></li></ul></div><div id="page-title"><h1>Quick Start - E-Commerce Recommendation Engine Template</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#usage">Usage</a> </li> <li> <a href="#1-install-and-run-predictionio">1. Install and Run PredictionIO</a> </li> <li> <a href="#2-create-a-new-engine-from-an-engine-template">2. Create a new Engine from an Engine Template</a> </li> <li> <a href="#3-generate-an-app-id-and-access-key">3. Generate an App ID and Access Key</a> </li> <li> <a href="#4-collecting-data">4. Collecting Data</a> </li> <li> <a href="#5-deploy-the-engine-as-a-service">5. Deploy the Engine as a Service</a> </li> <li> <a href="#6-use-the-engine">6. Use the Engine</a> </li> <li> <a href="#setting-constraint-unavailableitems">Setting constraint "unavailableItems"</a> </li> <li> <a href="#advanced-query">Advanced Query</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/templates/ecommercerecommendation/quickstart.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">PredictionIO® Official Templates</a><span class="spacer">&gt;</span></li><li><a href="#">E-Commerce Recommendation</a><span class="spacer">&gt;</span></li><li><span class="last">Quick Start</span></li></ul></div><div id="page-title"><h1>Quick Start - E-Commerce Recommendation Engine Template</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>This engine template provides personalized recommendation for e-commerce applications with the following features by default:</p> <ul> <li>Exclude out-of-stock items</li> <li>Provide recommendation to new users who sign up after the model is trained</li> <li>Recommend unseen items only (configurable)</li> <li>Recommend popular items if no information about the user is available (added in template version v0.4.0)</li> </ul> <div class="alert-message warning"><p>This template requires PredictionIO version &gt;= 0.9.0</p></div><h2 id='usage' class='header-anchors'>Usage</h2><h3 id='event-data-requirements' class='header-anchors'>Event Data Requirements</h3><p>By default, this template takes the following data from Event Server:</p> <ul> <li>Users&#39; <em>view</em> events</li> <li>Users&#39; <em>buy</em> events</li> <li>Items&#39; with <em>categories</em> properties</li> <li>Constraint <em>unavailableItems</em> set events</li> </ul> <div class="alert-message info"><p>This template can easily be customized to consider more user events such as <em>rate</em> and <em>like</em>.</p></div><p>The <em>view</em> events are used as Training Data to train the model. The algorithm has a parameter <em>unseenOnly</em>; when this parameter is set to true, the engine would recommend unseen items only. You can specify a list of events which are considered as <em>seen</em> events with the algorithm parameter <em>seenEvents</em>. The default values are <em>view</em> and <em>buy</em> events, which means that the engine by default recommends un-viewed and un-bought items only. You can also define your own events which are considered as <em>seen</em>.</p><p>The constraint <em>unavailableItems</em> set events are used to exclude a list of unavailable items (such as out of stock) for all users in real time.</p><h3 id='input-query' class='header-anchors'>Input Query</h3> <ul> <li>UserID</li> <li>Num of items to be recommended</li> <li>List of white-listed item categories (optional)</li> <li>List of white-listed ItemIds (optional)</li> <li>List of black-listed ItemIds (optional)</li> </ul> <p>The template also supports black-list and whitelist. If a whitelist is provided, the engine will include only those products in the recommendation. Likewise, if a blacklist is provided, the engine will exclude those products in the recommendation.</p><h3 id='output-predictedresult' class='header-anchors'>Output PredictedResult</h3> <ul> <li>A ranked list of recommended itemIDs</li> </ul> <h2 id='1.-install-and-run-predictionio' class='header-anchors'>1. Install and Run PredictionIO</h2> <p>First you need to <a href="/install">install PredictionIO 0.14.0</a> (if you haven&#39;t done it).</p><p>Let&#39;s say you have installed PredictionIO at <code>/home/yourname/PredictionIO/</code>. For convenience, add PredictionIO&#39;s binary command path to your <code>PATH</code>, i.e. <code>/home/yourname/PredictionIO/bin</code>:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nv">PATH</span><span class="o">=</span><span class="nv">$PATH</span>:/home/yourname/PredictionIO/bin; <span class="nb">export </span>PATH
 </pre></td></tr></tbody></table> </div> <div class="alert-message note"><p>If you launched <strong>PredictionIO AWS instance</strong>, the path is located at <code>/opt/PredictionIO/bin</code>.</p></div><p>Once you have completed the installation process, please make sure all the components (PredictionIO Event Server, Elasticsearch, and HBase) are up and running.</p><div class="alert-message note"><p>If you launched <strong>PredictionIO AWS instance</strong>, you can skip <code>pio-start-all</code>. All components should have been started automatically.</p></div><p>If you are using PostgreSQL or MySQL, run the following to start PredictionIO Event Server:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio eventserver &amp;
 </pre></td></tr></tbody></table> </div> <p>If instead you are running HBase and Elasticsearch, run the following to start all PredictionIO Event Server, HBase, and Elasticsearch:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio-start-all
 </pre></td></tr></tbody></table> </div> <p>You can check the status by running:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio status
@@ -32,7 +32,7 @@
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>               MyApp1 |    1 | 3mZWDzci2D5YsqAnqNnXH9SB6Rg3dsTBs8iHkK6X2i54IQsIZI1eEeQQyMfs7b3F | <span class="o">(</span>all<span class="o">)</span>
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>               MyApp2 |    2 | io5lz6Eg4m3Xe4JZTBFE13GMAf1dhFl6ZteuJfrO84XpdOz9wRCrDU44EUaYuXq5 | <span class="o">(</span>all<span class="o">)</span>
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span> Finished listing 2 app<span class="o">(</span>s<span class="o">)</span>.
-</pre></td></tr></tbody></table> </div> <p><a href="#"></a></p> <h2 id='4.-collecting-data' class='header-anchors'>4. Collecting Data</h2><p>Next, let&#39;s collect training data for this Engine. By default, the E-Commerce Recommendation Engine Template supports 2 types of entities and 2 events: <strong>user</strong> and <strong>item</strong>; events <strong>view</strong> and <strong>buy</strong>. An item has the <strong>categories</strong> property, which is a list of category names (String). A user can view and buy an item. The special <strong>constraint</strong> entity with entityId <strong>unavailableItems</strong> defines a list of unavailable items and is taken into account in realtime during serving.</p><p>In summary, this template requires &#39;$set&#39; user event, &#39;$set&#39; item event, user-view-item events, user-buy-item event and &#39;$set&#39; constraint event.</p><div class="alert-message info"><p>This template can easily be customized to consider other user-to-item events.</p></div> <p>You can send these events to PredictionIO Event Server in real-time easily by making a HTTP request or through the provided SDK. Please see <a href="/appintegration/">App Integration Overview</a> for more details how to integrate your app with SDK.</p><p>Let&#39;s try sending events to EventServer with the following <code>curl</code> commands (The corresponding SDK code is showed in other tabs).</p><p>Replace <code>&lt;ACCCESS_KEY&gt;</code> by the Access Key generated in above steps. Note that <code>localhost:7070</code> is the default URL of the Event Server.</p><p>For convenience, set your access key to the shell variable, run:</p><p><code>$ ACCESS_KEY=&lt;ACCESS_KEY&gt;</code></p> <p><a href="#"></a></p> <p>For example, when a new user with id &quot;u0&quot; is created in your app on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send a <code>$set</code> event for this user. To send this event, run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-8aea9666-8c5c-475f-a21c-96ebc484915f">REST API</a></li> <li data-lang="python"><a href="#tab-2b889b9e-ad83-4158-ac50-7f9dc390ea9c">Python SDK</a></li> <li data-lang="php"><a href="#tab-11eae386-3378-48fa-a670-9707858b6cab">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-8e143007-6533-428e-ba83-4aea10453185">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-bbb961af-c5a3-4340-a8a2-ff593bac2c31">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-8aea9666-8c5c-475f-a21c-96ebc484915f"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p><a href="#"></a></p> <h2 id='4.-collecting-data' class='header-anchors'>4. Collecting Data</h2><p>Next, let&#39;s collect training data for this Engine. By default, the E-Commerce Recommendation Engine Template supports 2 types of entities and 2 events: <strong>user</strong> and <strong>item</strong>; events <strong>view</strong> and <strong>buy</strong>. An item has the <strong>categories</strong> property, which is a list of category names (String). A user can view and buy an item. The special <strong>constraint</strong> entity with entityId <strong>unavailableItems</strong> defines a list of unavailable items and is taken into account in realtime during serving.</p><p>In summary, this template requires &#39;$set&#39; user event, &#39;$set&#39; item event, user-view-item events, user-buy-item event and &#39;$set&#39; constraint event.</p><div class="alert-message info"><p>This template can easily be customized to consider other user-to-item events.</p></div> <p>You can send these events to PredictionIO Event Server in real-time easily by making a HTTP request or through the provided SDK. Please see <a href="/appintegration/">App Integration Overview</a> for more details how to integrate your app with SDK.</p><p>Let&#39;s try sending events to EventServer with the following <code>curl</code> commands (The corresponding SDK code is showed in other tabs).</p><p>Replace <code>&lt;ACCCESS_KEY&gt;</code> by the Access Key generated in above steps. Note that <code>localhost:7070</code> is the default URL of the Event Server.</p><p>For convenience, set your access key to the shell variable, run:</p><p><code>$ ACCESS_KEY=&lt;ACCESS_KEY&gt;</code></p> <p><a href="#"></a></p> <p>For example, when a new user with id &quot;u0&quot; is created in your app on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send a <code>$set</code> event for this user. To send this event, run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-2db099cf-673f-4c9f-a5b4-aefb9dab90ee">REST API</a></li> <li data-lang="python"><a href="#tab-601c256a-7bd1-431c-9829-522d6158b838">Python SDK</a></li> <li data-lang="php"><a href="#tab-4040e628-a93e-4171-8eaf-ccd0ea68ca1b">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-c2e23f5d-4d6c-4f2c-a42b-af2d5e932b02">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-5c7a53c7-fb36-4635-80cc-a63aa4211806">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-2db099cf-673f-4c9f-a5b4-aefb9dab90ee"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -47,7 +47,7 @@
   "entityId" : "u0",
   "eventTime" : "2014-11-02T09:39:45.618-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-2b889b9e-ad83-4158-ac50-7f9dc390ea9c"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-601c256a-7bd1-431c-9829-522d6158b838"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -78,7 +78,7 @@
   <span class="n">entity_type</span><span class="o">=</span><span class="s">"user"</span><span class="p">,</span>
   <span class="n">entity_id</span><span class="o">=&lt;</span><span class="n">USER_ID</span><span class="o">&gt;</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-11eae386-3378-48fa-a670-9707858b6cab"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-4040e628-a93e-4171-8eaf-ccd0ea68ca1b"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -119,7 +119,7 @@
   <span class="s1">'properties'</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span><span class="s1">'categories'</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span><span class="s1">'&lt;CATEGORY_1&gt;'</span><span class="p">,</span> <span class="s1">'&lt;CATEGORY_2&gt;'</span><span class="p">))</span>
 <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-8e143007-6533-428e-ba83-4aea10453185"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-c2e23f5d-4d6c-4f2c-a42b-af2d5e932b02"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -136,7 +136,7 @@
   <span class="s1">'user'</span><span class="p">,</span>
   <span class="o">&lt;</span><span class="no">USER</span> <span class="no">ID</span><span class="o">&gt;</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-bbb961af-c5a3-4340-a8a2-ff593bac2c31"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-5c7a53c7-fb36-4635-80cc-a63aa4211806"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -161,7 +161,7 @@
   <span class="o">.</span><span class="na">entityType</span><span class="o">(</span><span class="s">"user"</span><span class="o">)</span>
   <span class="o">.</span><span class="na">entityId</span><span class="o">(&lt;</span><span class="n">USER_ID</span><span class="o">&gt;);</span>
 <span class="n">client</span><span class="o">.</span><span class="na">createEvent</span><span class="o">(</span><span class="n">userEvent</span><span class="o">);</span>
-</pre></td> </tr></tbody></table> </div> </div> </div> <p>When a new item &quot;i0&quot; is created in your app on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send a <code>$set</code> event for the item. Note that the item is set with categories properties: <code>&quot;c1&quot;</code> and <code>&quot;c2&quot;</code>. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-a2949a62-aa43-46ac-8166-fed909b2b8d3">REST API</a></li> <li data-lang="python"><a href="#tab-ad7ff6d7-9fdf-4448-8143-459c9bc258e9">Python SDK</a></li> <li data-lang="php"><a href="#tab-3e1d1d96-a12d-478b-988c-ad3193ffc380">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-a08169a6-0e1d-472b-8f43-e252d84f1b8c">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-59dca7c0-7bb5-4b71-aa19-98a8f2acae38">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-a2949a62-aa43-46ac-8166-fed909b2b8d3"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> </div> <p>When a new item &quot;i0&quot; is created in your app on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send a <code>$set</code> event for the item. Note that the item is set with categories properties: <code>&quot;c1&quot;</code> and <code>&quot;c2&quot;</code>. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-91be1567-9257-4fb2-a919-be0c061ba593">REST API</a></li> <li data-lang="python"><a href="#tab-ceac7c4f-05a1-42db-bbe7-90ca6576f258">Python SDK</a></li> <li data-lang="php"><a href="#tab-92834072-d534-48fa-90c5-fae8ad9bceb0">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-8a06c445-03ba-47b0-9047-80c3024261ca">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-18166945-baaf-4e36-a0e2-4fcd5c7a7cd1">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-91be1567-9257-4fb2-a919-be0c061ba593"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -182,7 +182,7 @@
   }
   "eventTime" : "2014-11-02T09:39:45.618-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-ad7ff6d7-9fdf-4448-8143-459c9bc258e9"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-ceac7c4f-05a1-42db-bbe7-90ca6576f258"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -201,7 +201,7 @@
     <span class="s">"categories"</span> <span class="p">:</span> <span class="p">[</span><span class="s">"&lt;CATEGORY_1&gt;"</span><span class="p">,</span> <span class="s">"&lt;CATEGORY_2&gt;"</span><span class="p">]</span>
   <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-3e1d1d96-a12d-478b-988c-ad3193ffc380"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-92834072-d534-48fa-90c5-fae8ad9bceb0"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -218,7 +218,7 @@
   <span class="s1">'properties'</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span><span class="s1">'categories'</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span><span class="s1">'&lt;CATEGORY_1&gt;'</span><span class="p">,</span> <span class="s1">'&lt;CATEGORY_2&gt;'</span><span class="p">))</span>
 <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-a08169a6-0e1d-472b-8f43-e252d84f1b8c"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-8a06c445-03ba-47b0-9047-80c3024261ca"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -235,7 +235,7 @@
   <span class="p">}</span>
 <span class="p">)</span>
 
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-59dca7c0-7bb5-4b71-aa19-98a8f2acae38"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-18166945-baaf-4e36-a0e2-4fcd5c7a7cd1"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -248,7 +248,7 @@
   <span class="o">.</span><span class="na">entityId</span><span class="o">(&lt;</span><span class="n">ITEM_ID</span><span class="o">&gt;)</span>
   <span class="o">.</span><span class="na">property</span><span class="o">(</span><span class="s">"categories"</span><span class="o">,</span> <span class="n">ImmutableList</span><span class="o">.</span><span class="na">of</span><span class="o">(</span><span class="s">"&lt;CATEGORY_1&gt;"</span><span class="o">,</span> <span class="s">"&lt;CATEGORY_2&gt;"</span><span class="o">));</span>
 <span class="n">client</span><span class="o">.</span><span class="na">createEvent</span><span class="o">(</span><span class="n">itemEvent</span><span class="o">)</span>
-</pre></td> </tr></tbody></table> </div> </div> </div> <p>The properties of the <code>user</code> and <code>item</code> can be set, unset, or delete by special events <strong>$set</strong>, <strong>$unset</strong> and <strong>$delete</strong>. Please refer to <a href="/datacollection/eventapi/#note-about-properties">Event API</a> for more details of using these events.</p><p>When the user &quot;u0&quot; view item &quot;i0&quot; on time <code>2014-11-10T12:34:56.123-08:00</code> (current time will be used if eventTime is not specified), you can send a view event. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-1d06fd3a-ddc1-476a-a6f3-2a2ac77787dc">REST API</a></li> <li data-lang="python"><a href="#tab-e76cfc12-ade8-436e-9c39-e574d044f16f">Python SDK</a></li> <li data-lang="php"><a href="#tab-575b83eb-52f0-4588-88bd-6424ba81d3bb">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-b32da8cc-de0a-4b6a-b2f1-c4ed6a749c07">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-d29fd61e-4735-45b6-a01a-78169af6a265">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-1d06fd3a-ddc1-476a-a6f3-2a2ac77787dc"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> </div> <p>The properties of the <code>user</code> and <code>item</code> can be set, unset, or delete by special events <strong>$set</strong>, <strong>$unset</strong> and <strong>$delete</strong>. Please refer to <a href="/datacollection/eventapi/#note-about-properties">Event API</a> for more details of using these events.</p><p>When the user &quot;u0&quot; view item &quot;i0&quot; on time <code>2014-11-10T12:34:56.123-08:00</code> (current time will be used if eventTime is not specified), you can send a view event. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-46a22d57-c947-43a6-917b-67143f07d6e3">REST API</a></li> <li data-lang="python"><a href="#tab-d7e311a0-d28d-480e-b2f9-75c534a1cf9b">Python SDK</a></li> <li data-lang="php"><a href="#tab-c90e8775-9f07-4390-98bf-f64e9f2ae8a3">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-99b60a7d-3b29-44e9-86f1-c335cd13302f">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-e60a0293-3b17-45c2-b3ef-9670c420cea4">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-46a22d57-c947-43a6-917b-67143f07d6e3"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -267,7 +267,7 @@
   "targetEntityId" : "i0",
   "eventTime" : "2014-11-10T12:34:56.123-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-e76cfc12-ade8-436e-9c39-e574d044f16f"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-d7e311a0-d28d-480e-b2f9-75c534a1cf9b"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -284,7 +284,7 @@
   <span class="n">target_entity_type</span><span class="o">=</span><span class="s">"item"</span><span class="p">,</span>
   <span class="n">target_entity_id</span><span class="o">=&lt;</span><span class="n">ITEM</span> <span class="n">ID</span><span class="o">&gt;</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-575b83eb-52f0-4588-88bd-6424ba81d3bb"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-c90e8775-9f07-4390-98bf-f64e9f2ae8a3"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -303,7 +303,7 @@
    <span class="s1">'targetEntityId'</span> <span class="o">=&gt;</span> <span class="o">&lt;</span><span class="nx">ITEM</span> <span class="nx">ID</span><span class="o">&gt;</span>
 <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-b32da8cc-de0a-4b6a-b2f1-c4ed6a749c07"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-99b60a7d-3b29-44e9-86f1-c335cd13302f"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -322,7 +322,7 @@
   <span class="p">}</span>
 <span class="p">)</span>
 
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-d29fd61e-4735-45b6-a01a-78169af6a265"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-e60a0293-3b17-45c2-b3ef-9670c420cea4"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -337,7 +337,7 @@
     <span class="o">.</span><span class="na">targetEntityType</span><span class="o">(</span><span class="s">"item"</span><span class="o">)</span>
     <span class="o">.</span><span class="na">targetEntityId</span><span class="o">(&lt;</span><span class="n">ITEM_ID</span><span class="o">&gt;);</span>
 <span class="n">client</span><span class="o">.</span><span class="na">createEvent</span><span class="o">(</span><span class="n">viewEvent</span><span class="o">);</span>
-</pre></td> </tr></tbody></table> </div> </div> </div> <p>When the user &quot;u0&quot; buy item &quot;i0&quot; on time <code>2014-11-10T13:00:00.123-08:00</code> (current time will be used if eventTime is not specified), you can send a view event. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-500d83b2-5b1b-4c81-a29e-497e8a4b4f4c">REST API</a></li> <li data-lang="python"><a href="#tab-59f27f41-265c-4c1c-b060-fee829b803c4">Python SDK</a></li> <li data-lang="php"><a href="#tab-1a965b02-f0f2-4f2f-8383-aacc69c79909">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-cba1c310-765c-42ab-a7db-930c39d0d3b1">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-4ae6ca50-9308-4851-9302-ca18cd5575fc">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-500d83b2-5b1b-4c81-a29e-497e8a4b4f4c"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> </div> <p>When the user &quot;u0&quot; buy item &quot;i0&quot; on time <code>2014-11-10T13:00:00.123-08:00</code> (current time will be used if eventTime is not specified), you can send a view event. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-74430836-635f-4038-b098-08f008a71372">REST API</a></li> <li data-lang="python"><a href="#tab-4d2cf396-6b06-48c6-8547-7f9b2075d7c4">Python SDK</a></li> <li data-lang="php"><a href="#tab-d03c6bd2-c502-4cfc-98d5-c4a8bf4edbd3">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-7c90cd73-c044-4ad6-a1c8-e7bcc7928636">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-77192bc1-a7c5-4d45-b6e1-2dffb4756026">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-74430836-635f-4038-b098-08f008a71372"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
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 4
@@ -356,7 +356,7 @@
   "targetEntityId" : "i0",
   "eventTime" : "2014-11-10T13:00:00.123-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-59f27f41-265c-4c1c-b060-fee829b803c4"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-4d2cf396-6b06-48c6-8547-7f9b2075d7c4"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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 3
 4
@@ -373,7 +373,7 @@
   <span class="n">target_entity_type</span><span class="o">=</span><span class="s">"item"</span><span class="p">,</span>
   <span class="n">target_entity_id</span><span class="o">=&lt;</span><span class="n">ITEM</span> <span class="n">ID</span><span class="o">&gt;</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-1a965b02-f0f2-4f2f-8383-aacc69c79909"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-d03c6bd2-c502-4cfc-98d5-c4a8bf4edbd3"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -392,7 +392,7 @@
    <span class="s1">'targetEntityId'</span> <span class="o">=&gt;</span> <span class="o">&lt;</span><span class="nx">ITEM</span> <span class="nx">ID</span><span class="o">&gt;</span>
 <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-cba1c310-765c-42ab-a7db-930c39d0d3b1"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-7c90cd73-c044-4ad6-a1c8-e7bcc7928636"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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 4
@@ -409,7 +409,7 @@
     <span class="s1">'targetEntityId'</span> <span class="o">=&gt;</span> <span class="o">&lt;</span><span class="no">ITEM</span> <span class="no">ID</span><span class="o">&gt;</span>
   <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-4ae6ca50-9308-4851-9302-ca18cd5575fc"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-77192bc1-a7c5-4d45-b6e1-2dffb4756026"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
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 4
@@ -490,19 +490,19 @@
 </pre></td></tr></tbody></table> </div> <p>When the engine is deployed successfully and running, you should see a console message similar to the following:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2</pre></td><td class="code"><pre><span class="o">[</span>INFO] <span class="o">[</span>HttpListener] Bound to /0.0.0.0:8000
 <span class="o">[</span>INFO] <span class="o">[</span>MasterActor] Bind successful. Ready to serve.
-</pre></td></tr></tbody></table> </div> <p>Do not kill the deployed engine process.</p><p>By default, the deployed engine binds to <a href="http://localhost:8000"><a href="http://localhost:8000">http://localhost:8000</a></a>. You can visit that page in your web browser to check its status.</p><p><img alt="Engine Status" src="/images/engine-server-3246414b.png"/></p></p><h2 id='6.-use-the-engine' class='header-anchors'>6. Use the Engine</h2><p>Now, You can retrieve predicted results. To recommend 4 items to user ID &quot;u1&quot;. You send this JSON <code>{ &quot;user&quot;: &quot;u1&quot;, &quot;num&quot;: 4 }</code> to the deployed engine and it will return a JSON of the recommended items. Simply send a query by making a HTTP request or through the <code>EngineClient</code> of an SDK.</p><p>With the deployed engine running, open another terminal and run the following <code>curl</code> command or use SDK to send the query:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-aca528ba-0c0d-426a-ac2d-89d7ad979de7">REST API</a></li> <li data-lang="python"><a href="#tab-2b6c287a-7454-4158-b6be-4931cb00eb43">Python SDK</a></li> <li data-lang="php"><a href="#tab-33308467-3109-4980-aba8-829b61fe6efe">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-a35d040b-a5ef-4108-a578-cb1f13b647b1">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-50e33efc-d19a-4dff-8fc7-0f8f79a5a18c">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-aca528ba-0c0d-426a-ac2d-89d7ad979de7"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p>Do not kill the deployed engine process.</p><p>By default, the deployed engine binds to <a href="http://localhost:8000"><a href="http://localhost:8000">http://localhost:8000</a></a>. You can visit that page in your web browser to check its status.</p><p><img alt="Engine Status" src="/images/engine-server-3246414b.png"/></p></p><h2 id='6.-use-the-engine' class='header-anchors'>6. Use the Engine</h2><p>Now, You can retrieve predicted results. To recommend 4 items to user ID &quot;u1&quot;. You send this JSON <code>{ &quot;user&quot;: &quot;u1&quot;, &quot;num&quot;: 4 }</code> to the deployed engine and it will return a JSON of the recommended items. Simply send a query by making a HTTP request or through the <code>EngineClient</code> of an SDK.</p><p>With the deployed engine running, open another terminal and run the following <code>curl</code> command or use SDK to send the query:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-31208990-eee8-4652-afe0-e838c3ddaa92">REST API</a></li> <li data-lang="python"><a href="#tab-db2a682a-bdbf-4f34-88f8-4a49c427cca0">Python SDK</a></li> <li data-lang="php"><a href="#tab-f2f98e87-086c-497f-89f9-1ab8a328ddc2">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-4d752ede-0321-496e-bc3b-a99a0be71d34">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-fa290c74-bdeb-4fea-b5f2-d778c05eaa25">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-31208990-eee8-4652-afe0-e838c3ddaa92"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4</pre></td> <td class="code"><pre><span class="gp">$ </span>curl -H <span class="s2">"Content-Type: application/json"</span> <span class="se">\</span>
 -d <span class="s1">'{ "user": "u1", "num": 4 }'</span> <span class="se">\</span>
 http://localhost:8000/queries.json
 
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-2b6c287a-7454-4158-b6be-4931cb00eb43"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-db2a682a-bdbf-4f34-88f8-4a49c427cca0"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3</pre></td> <td class="code"><pre><span class="kn">import</span> <span class="nn">predictionio</span>
 <span class="n">engine_client</span> <span class="o">=</span> <span class="n">predictionio</span><span class="o">.</span><span class="n">EngineClient</span><span class="p">(</span><span class="n">url</span><span class="o">=</span><span class="s">"http://localhost:8000"</span><span class="p">)</span>
 <span class="k">print</span> <span class="n">engine_client</span><span class="o">.</span><span class="n">send_query</span><span class="p">({</span><span class="s">"user"</span><span class="p">:</span> <span class="s">"u1"</span><span class="p">,</span> <span class="s">"num"</span><span class="p">:</span> <span class="mi">4</span><span class="p">})</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-33308467-3109-4980-aba8-829b61fe6efe"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-f2f98e87-086c-497f-89f9-1ab8a328ddc2"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
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@@ -521,7 +521,7 @@
 <span class="nb">print_r</span><span class="p">(</span><span class="nv">$response</span><span class="p">);</span>
 
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-a35d040b-a5ef-4108-a578-cb1f13b647b1"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-4d752ede-0321-496e-bc3b-a99a0be71d34"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
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@@ -534,7 +534,7 @@
 <span class="n">response</span> <span class="o">=</span> <span class="n">client</span><span class="p">.</span><span class="nf">send_query</span><span class="p">(</span><span class="s1">'user'</span> <span class="o">=&gt;</span> <span class="s1">'i1'</span><span class="p">,</span> <span class="s1">'num'</span> <span class="o">=&gt;</span> <span class="mi">4</span><span class="p">)</span>
 
 <span class="nb">puts</span> <span class="n">response</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-50e33efc-d19a-4dff-8fc7-0f8f79a5a18c"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-fa290c74-bdeb-4fea-b5f2-d778c05eaa25"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -578,7 +578,7 @@
     <span class="o">{</span><span class="s2">"item"</span>:<span class="s2">"i3"</span>,<span class="s2">"score"</span>:0.003007015026561692<span class="o">}</span>
   <span class="o">]</span>
 <span class="o">}</span>
-</pre></td></tr></tbody></table> </div> <p><em>MyECommerceRecommendation</em> is now running.</p> <div class="alert-message info"><p>To update the model periodically with new data, simply set up a cron job to call <code>pio train</code> and <code>pio deploy</code>. The engine will continue to serve prediction results during the re-train process. After the training is completed, <code>pio deploy</code> will automatically shutdown the existing engine server and bring up a new process on the same port.</p></div><div class="alert-message info"><p><strong>Note that if you import a <em>large</em> data set</strong> and the training seems to be taking forever or getting stuck, it&#39;s likely that there is not enough executor memory. It&#39;s recommended to setup a Spark standalone cluster, you&#39;ll need to specify more driver and executor memory when training with a large data set. Please see <a href="/resources/faq/#engine-training">FAQ here</a> for instructions.</p></div> <h2 id='setting-constraint-&quot;unavailableitems&quot;' class='header-anchors'>Setting constraint &quot;unavailableItems&quot;</h2><p>Now let&#39;s send a item contraint &quot;unavailableItems&quot; (replace accessKey with your Access Key):</p><div class="alert-message note"><p>You can also use SDK to send this event as described in the SDK sample above.</p></div><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-694e9f38-638d-4507-b043-29029f024352">REST API</a></li> <li data-lang="python"><a href="#tab-880fdefb-71ae-4d8b-88af-be54253aa522">Python SDK</a></li> <li data-lang="php"><a href="#tab-7bbdcc64-18de-4dfd-a221-c3b466c41ed8">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-02719e57-38c7-4c58-a685-dbf01fa0e285">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-8f566c24-067c-46f4-90bc-189a7bf756eb">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-694e9f38-638d-4507-b043-29029f024352"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p><em>MyECommerceRecommendation</em> is now running.</p> <div class="alert-message info"><p>To update the model periodically with new data, simply set up a cron job to call <code>pio train</code> and <code>pio deploy</code>. The engine will continue to serve prediction results during the re-train process. After the training is completed, <code>pio deploy</code> will automatically shutdown the existing engine server and bring up a new process on the same port.</p></div><div class="alert-message info"><p><strong>Note that if you import a <em>large</em> data set</strong> and the training seems to be taking forever or getting stuck, it&#39;s likely that there is not enough executor memory. It&#39;s recommended to setup a Spark standalone cluster, you&#39;ll need to specify more driver and executor memory when training with a large data set. Please see <a href="/resources/faq/#engine-training">FAQ here</a> for instructions.</p></div> <h2 id='setting-constraint-&quot;unavailableitems&quot;' class='header-anchors'>Setting constraint &quot;unavailableItems&quot;</h2><p>Now let&#39;s send a item contraint &quot;unavailableItems&quot; (replace accessKey with your Access Key):</p><div class="alert-message note"><p>You can also use SDK to send this event as described in the SDK sample above.</p></div><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-cf9c6819-821d-4545-a4a4-b9cad2cc00b2">REST API</a></li> <li data-lang="python"><a href="#tab-01b61580-bd72-4415-b884-62d5c86616c1">Python SDK</a></li> <li data-lang="php"><a href="#tab-91c2879e-64e9-4055-91c7-5e205307b4d6">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-7a6abff6-3277-46b4-bdf7-6b6ad2111434">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-93fa4024-d9be-49ad-9fca-6643374ea5ca">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-cf9c6819-821d-4545-a4a4-b9cad2cc00b2"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -599,7 +599,7 @@
   }
   "eventTime" : "2015-02-17T02:11:21.934Z"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-880fdefb-71ae-4d8b-88af-be54253aa522"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-01b61580-bd72-4415-b884-62d5c86616c1"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -618,7 +618,7 @@
     <span class="s">"items"</span> <span class="p">:</span> <span class="p">[</span><span class="s">"&lt;ITEM ID1&gt;"</span><span class="p">,</span> <span class="s">"&lt;ITEM ID2&gt;"</span><span class="p">]</span>
   <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-7bbdcc64-18de-4dfd-a221-c3b466c41ed8"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-91c2879e-64e9-4055-91c7-5e205307b4d6"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -635,7 +635,7 @@
   <span class="s1">'properties'</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span><span class="s1">'items'</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span><span class="s1">'&lt;ITEM ID1&gt;'</span><span class="p">,</span> <span class="s1">'&lt;ITEM ID2&gt;'</span><span class="p">))</span>
 <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-02719e57-38c7-4c58-a685-dbf01fa0e285"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-7a6abff6-3277-46b4-bdf7-6b6ad2111434"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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 4
@@ -650,7 +650,7 @@
     <span class="s1">'properties'</span> <span class="o">=&gt;</span> <span class="p">{</span> <span class="s1">'items'</span> <span class="o">=&gt;</span> <span class="p">[</span><span class="s1">'&lt;ITEM ID1&gt;'</span><span class="p">,</span> <span class="s1">'&lt;ITEM ID2&gt;'</span><span class="p">]</span> <span class="p">}</span>
   <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-8f566c24-067c-46f4-90bc-189a7bf756eb"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-93fa4024-d9be-49ad-9fca-6643374ea5ca"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
diff --git a/templates/javaecommercerecommendation/quickstart/index.html b/templates/javaecommercerecommendation/quickstart/index.html
index 21bb1d6..1f8fe95 100644
--- a/templates/javaecommercerecommendation/quickstart/index.html
+++ b/templates/javaecommercerecommendation/quickstart/index.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html><head><title>Quick Start - E-Commerce Recommendation Engine Template (Java)</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Quick Start - E-Commerce Recommendation Engine Template (Java)"/><link rel="canonical" href="https://predictionio.apache.org/templates/javaecommercerecommendation/quickstart/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script src="//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script><script src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: true });}catch(e){}</script></head><body><div id="global"><header><div class="container" id="header-wrapper"><div class="row"><div class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a href="#"></a><a href="http://predictionio.apache.org/"><img alt="Apache PredictionIO" id="logo" src="/images/logos/logo-ee2b9bb3.png"/></a><span>®</span></div><div id="menu-wrapper"><div id="pill-wrapper"><a class="pill left" href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" href="//github.com/apache/predictionio/">OPEN SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md hidden-lg" src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Quick Start - E-Commerce Recommendation Engine Template (Java)</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li 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href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute 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with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="page-title"><h1>Quick Start - E-Commerce Recommendation Engine Template (Java)</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#usage">Usage</a> </li> <li> <a href="#1-install-and-run-predictionio">1. Install and Run PredictionIO</a> </li> <li> <a href="#2-create-a-new-engine-from-an-engine-template">2. Create a new Engine from an Engine Template</a> </li> <li> <a href="#3-generate-an-app-id-and-access-key">3. Generate an App ID and Access Key</a> </li> <li> <a href="#4-collecting-data">4. Collecting Data</a> </li> <li> <a href="#5-deploy-the-engine-as-a-service">5. Deploy the Engine as a Service</a> </li> <li> <a href="#6-use-the-engine">6. Use the Engine</a> </li> <li> <a href="#setting-constraint-unavailableitems">Setting constraint "unavailableItems"</a> </li> <li> <a href="#advanced-query">Advanced Query</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/templates/javaecommercerecommendation/quickstart.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="page-title"><h1>Quick Start - E-Commerce Recommendation Engine Template (Java)</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>This engine template provides personalized recommendation for e-commerce applications with the following features by default:</p> <ul> <li>Exclude out-of-stock items</li> <li>Provide recommendation to new users who sign up after the model is trained</li> <li>Recommend unseen items only (configurable)</li> <li>Recommend popular items if no information about the user is available</li> </ul> <div class="alert-message warning"><p>This template requires PredictionIO version &gt;= 0.9.3</p></div><h2 id='usage' class='header-anchors'>Usage</h2><h3 id='event-data-requirements' class='header-anchors'>Event Data Requirements</h3><p>By default, this template takes the following data from Event Server:</p> <ul> <li>Users&#39; <em>view</em> events</li> <li>Users&#39; <em>buy</em> events</li> <li>Items with <em>categories</em> properties</li> <li>Constraint <em>unavailableItems</em> set events</li> </ul> <div class="alert-message info"><p>This template can easily be customized to consider more user events such as <em>rate</em> and <em>like</em>.</p></div><p>The <em>view</em> events are used as Training Data to train the model. The algorithm has a parameter <em>unseenOnly</em>; when this parameter is set to true, the engine would recommend unseen items only. You can specify a list of events which are considered as <em>seen</em> events with the algorithm parameter <em>seenItemEvents</em>. The default values are <em>view</em> and <em>buy</em> events, which means that the engine by default recommends un-viewed and un-bought items only. You can also define your own events which are considered as <em>seen</em>.</p><p>The constraint <em>unavailableItems</em> set events are used to exclude a list of unavailable items (such as out of stock) for all users in real time.</p><h3 id='input-query' class='header-anchors'>Input Query</h3> <ul> <li>User entity ID</li> <li>Number of items to be recommended</li> <li>List of whitelisted item categories (optional)</li> <li>List of whitelisted item entity IDs (optional)</li> <li>List of blacklisted item entity IDs (optional)</li> </ul> <p>This template also supports blacklist and whitelist. If a whitelist is provided, the engine will include only those products in the recommendation. Likewise, if a blacklist is provided, the engine will exclude those products in the recommendation.</p><h3 id='output-predictedresult' class='header-anchors'>Output PredictedResult</h3> <ul> <li>A ranked list of recommended item entity IDs</li> </ul> <h2 id='1.-install-and-run-predictionio' class='header-anchors'>1. Install and Run PredictionIO</h2> <p>First you need to <a href="/install">install PredictionIO 0.13.0</a> (if you haven&#39;t done it).</p><p>Let&#39;s say you have installed PredictionIO at <code>/home/yourname/PredictionIO/</code>. For convenience, add PredictionIO&#39;s binary command path to your <code>PATH</code>, i.e. <code>/home/yourname/PredictionIO/bin</code>:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nv">PATH</span><span class="o">=</span><span class="nv">$PATH</span>:/home/yourname/PredictionIO/bin; <span class="nb">export </span>PATH
+<!DOCTYPE html><html><head><title>Quick Start - E-Commerce Recommendation Engine Template (Java)</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Quick Start - E-Commerce Recommendation Engine Template (Java)"/><link rel="canonical" href="https://predictionio.apache.org/templates/javaecommercerecommendation/quickstart/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script src="//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script><script src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: true });}catch(e){}</script></head><body><div id="global"><header><div class="container" id="header-wrapper"><div class="row"><div class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a href="#"></a><a href="http://predictionio.apache.org/"><img alt="Apache PredictionIO" id="logo" src="/images/logos/logo-ee2b9bb3.png"/></a><span>®</span></div><div id="menu-wrapper"><div id="pill-wrapper"><a class="pill left" href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" href="//github.com/apache/predictionio/">OPEN SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md hidden-lg" src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Quick Start - E-Commerce Recommendation Engine Template (Java)</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="page-title"><h1>Quick Start - E-Commerce Recommendation Engine Template (Java)</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#usage">Usage</a> </li> <li> <a href="#1-install-and-run-predictionio">1. Install and Run PredictionIO</a> </li> <li> <a href="#2-create-a-new-engine-from-an-engine-template">2. Create a new Engine from an Engine Template</a> </li> <li> <a href="#3-generate-an-app-id-and-access-key">3. Generate an App ID and Access Key</a> </li> <li> <a href="#4-collecting-data">4. Collecting Data</a> </li> <li> <a href="#5-deploy-the-engine-as-a-service">5. Deploy the Engine as a Service</a> </li> <li> <a href="#6-use-the-engine">6. Use the Engine</a> </li> <li> <a href="#setting-constraint-unavailableitems">Setting constraint "unavailableItems"</a> </li> <li> <a href="#advanced-query">Advanced Query</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/templates/javaecommercerecommendation/quickstart.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="page-title"><h1>Quick Start - E-Commerce Recommendation Engine Template (Java)</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>This engine template provides personalized recommendation for e-commerce applications with the following features by default:</p> <ul> <li>Exclude out-of-stock items</li> <li>Provide recommendation to new users who sign up after the model is trained</li> <li>Recommend unseen items only (configurable)</li> <li>Recommend popular items if no information about the user is available</li> </ul> <div class="alert-message warning"><p>This template requires PredictionIO version &gt;= 0.9.3</p></div><h2 id='usage' class='header-anchors'>Usage</h2><h3 id='event-data-requirements' class='header-anchors'>Event Data Requirements</h3><p>By default, this template takes the following data from Event Server:</p> <ul> <li>Users&#39; <em>view</em> events</li> <li>Users&#39; <em>buy</em> events</li> <li>Items with <em>categories</em> properties</li> <li>Constraint <em>unavailableItems</em> set events</li> </ul> <div class="alert-message info"><p>This template can easily be customized to consider more user events such as <em>rate</em> and <em>like</em>.</p></div><p>The <em>view</em> events are used as Training Data to train the model. The algorithm has a parameter <em>unseenOnly</em>; when this parameter is set to true, the engine would recommend unseen items only. You can specify a list of events which are considered as <em>seen</em> events with the algorithm parameter <em>seenItemEvents</em>. The default values are <em>view</em> and <em>buy</em> events, which means that the engine by default recommends un-viewed and un-bought items only. You can also define your own events which are considered as <em>seen</em>.</p><p>The constraint <em>unavailableItems</em> set events are used to exclude a list of unavailable items (such as out of stock) for all users in real time.</p><h3 id='input-query' class='header-anchors'>Input Query</h3> <ul> <li>User entity ID</li> <li>Number of items to be recommended</li> <li>List of whitelisted item categories (optional)</li> <li>List of whitelisted item entity IDs (optional)</li> <li>List of blacklisted item entity IDs (optional)</li> </ul> <p>This template also supports blacklist and whitelist. If a whitelist is provided, the engine will include only those products in the recommendation. Likewise, if a blacklist is provided, the engine will exclude those products in the recommendation.</p><h3 id='output-predictedresult' class='header-anchors'>Output PredictedResult</h3> <ul> <li>A ranked list of recommended item entity IDs</li> </ul> <h2 id='1.-install-and-run-predictionio' class='header-anchors'>1. Install and Run PredictionIO</h2> <p>First you need to <a href="/install">install PredictionIO 0.14.0</a> (if you haven&#39;t done it).</p><p>Let&#39;s say you have installed PredictionIO at <code>/home/yourname/PredictionIO/</code>. For convenience, add PredictionIO&#39;s binary command path to your <code>PATH</code>, i.e. <code>/home/yourname/PredictionIO/bin</code>:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nv">PATH</span><span class="o">=</span><span class="nv">$PATH</span>:/home/yourname/PredictionIO/bin; <span class="nb">export </span>PATH
 </pre></td></tr></tbody></table> </div> <div class="alert-message note"><p>If you launched <strong>PredictionIO AWS instance</strong>, the path is located at <code>/opt/PredictionIO/bin</code>.</p></div><p>Once you have completed the installation process, please make sure all the components (PredictionIO Event Server, Elasticsearch, and HBase) are up and running.</p><div class="alert-message note"><p>If you launched <strong>PredictionIO AWS instance</strong>, you can skip <code>pio-start-all</code>. All components should have been started automatically.</p></div><p>If you are using PostgreSQL or MySQL, run the following to start PredictionIO Event Server:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio eventserver &amp;
 </pre></td></tr></tbody></table> </div> <p>If instead you are running HBase and Elasticsearch, run the following to start all PredictionIO Event Server, HBase, and Elasticsearch:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio-start-all
 </pre></td></tr></tbody></table> </div> <p>You can check the status by running:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio status
@@ -32,7 +32,7 @@
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>               MyApp1 |    1 | 3mZWDzci2D5YsqAnqNnXH9SB6Rg3dsTBs8iHkK6X2i54IQsIZI1eEeQQyMfs7b3F | <span class="o">(</span>all<span class="o">)</span>
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>               MyApp2 |    2 | io5lz6Eg4m3Xe4JZTBFE13GMAf1dhFl6ZteuJfrO84XpdOz9wRCrDU44EUaYuXq5 | <span class="o">(</span>all<span class="o">)</span>
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span> Finished listing 2 app<span class="o">(</span>s<span class="o">)</span>.
-</pre></td></tr></tbody></table> </div> <p><a href="#"></a></p> <h2 id='4.-collecting-data' class='header-anchors'>4. Collecting Data</h2><p>Next, let&#39;s collect training data for this Engine. By default, the E-Commerce Recommendation Engine Template supports 2 types of entities and 2 events: <strong>user</strong> and <strong>item</strong>; events <strong>view</strong> and <strong>buy</strong>. An item has the <strong>categories</strong> property, which is a list of category names (String). A user can view and buy an item. The specical <strong>constraint</strong> entiy with entityId <strong>unavailableItems</strong> defines a list of unavailable items and is taken into account in realtime during serving.</p><p>In summary, this template requires &#39;$set&#39; user event, &#39;$set&#39; item event, user-view-item events, user-buy-item event and &#39;$set&#39; constraint event.</p><div class="alert-message info"><p>This template can easily be customized to consider other user-to-item events.</p></div> <p>You can send these events to PredictionIO Event Server in real-time easily by making a HTTP request or through the provided SDK. Please see <a href="/appintegration/">App Integration Overview</a> for more details how to integrate your app with SDK.</p><p>Let&#39;s try sending events to EventServer with the following <code>curl</code> commands (The corresponding SDK code is showed in other tabs).</p><p>Replace <code>&lt;ACCCESS_KEY&gt;</code> by the Access Key generated in above steps. Note that <code>localhost:7070</code> is the default URL of the Event Server.</p><p>For convenience, set your access key to the shell variable, run:</p><p><code>$ ACCESS_KEY=&lt;ACCESS_KEY&gt;</code></p> <p><a href="#"></a></p> <p>For example, when a new user with id &quot;u0&quot; is created in your app on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send a <code>$set</code> event for this user. To send this event, run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-7f8da1a3-e52f-438f-9201-0c00c1c2116b">REST API</a></li> <li data-lang="python"><a href="#tab-009a4bb0-8080-4e74-90c4-c026ccb84e58">Python SDK</a></li> <li data-lang="php"><a href="#tab-5e97cad3-aa7f-49c1-a87f-e3d1078fa09e">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-5e571036-6e27-4d5f-ade7-49a44eb99890">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-80dea834-efbf-4c94-89b2-b8f417f85f39">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-7f8da1a3-e52f-438f-9201-0c00c1c2116b"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p><a href="#"></a></p> <h2 id='4.-collecting-data' class='header-anchors'>4. Collecting Data</h2><p>Next, let&#39;s collect training data for this Engine. By default, the E-Commerce Recommendation Engine Template supports 2 types of entities and 2 events: <strong>user</strong> and <strong>item</strong>; events <strong>view</strong> and <strong>buy</strong>. An item has the <strong>categories</strong> property, which is a list of category names (String). A user can view and buy an item. The specical <strong>constraint</strong> entiy with entityId <strong>unavailableItems</strong> defines a list of unavailable items and is taken into account in realtime during serving.</p><p>In summary, this template requires &#39;$set&#39; user event, &#39;$set&#39; item event, user-view-item events, user-buy-item event and &#39;$set&#39; constraint event.</p><div class="alert-message info"><p>This template can easily be customized to consider other user-to-item events.</p></div> <p>You can send these events to PredictionIO Event Server in real-time easily by making a HTTP request or through the provided SDK. Please see <a href="/appintegration/">App Integration Overview</a> for more details how to integrate your app with SDK.</p><p>Let&#39;s try sending events to EventServer with the following <code>curl</code> commands (The corresponding SDK code is showed in other tabs).</p><p>Replace <code>&lt;ACCCESS_KEY&gt;</code> by the Access Key generated in above steps. Note that <code>localhost:7070</code> is the default URL of the Event Server.</p><p>For convenience, set your access key to the shell variable, run:</p><p><code>$ ACCESS_KEY=&lt;ACCESS_KEY&gt;</code></p> <p><a href="#"></a></p> <p>For example, when a new user with id &quot;u0&quot; is created in your app on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send a <code>$set</code> event for this user. To send this event, run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-892b0aae-8362-419f-a924-8caf9bc481ff">REST API</a></li> <li data-lang="python"><a href="#tab-0bcb1459-690e-4825-8736-76d4a9841865">Python SDK</a></li> <li data-lang="php"><a href="#tab-2c52eac7-e8f4-47ae-ae4b-d095147b8587">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-46c0763d-ab11-4b1e-a126-34dd6c125836">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-1622e459-f15a-4f2c-9c68-c332bb61b20e">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-892b0aae-8362-419f-a924-8caf9bc481ff"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -47,7 +47,7 @@
   "entityId" : "u0",
   "eventTime" : "2014-11-02T09:39:45.618-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-009a4bb0-8080-4e74-90c4-c026ccb84e58"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-0bcb1459-690e-4825-8736-76d4a9841865"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -78,7 +78,7 @@
   <span class="n">entity_type</span><span class="o">=</span><span class="s">"user"</span><span class="p">,</span>
   <span class="n">entity_id</span><span class="o">=&lt;</span><span class="n">USER_ID</span><span class="o">&gt;</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-5e97cad3-aa7f-49c1-a87f-e3d1078fa09e"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-2c52eac7-e8f4-47ae-ae4b-d095147b8587"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -119,7 +119,7 @@
   <span class="s1">'properties'</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span><span class="s1">'categories'</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span><span class="s1">'&lt;CATEGORY_1&gt;'</span><span class="p">,</span> <span class="s1">'&lt;CATEGORY_2&gt;'</span><span class="p">))</span>
 <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-5e571036-6e27-4d5f-ade7-49a44eb99890"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-46c0763d-ab11-4b1e-a126-34dd6c125836"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -136,7 +136,7 @@
   <span class="s1">'user'</span><span class="p">,</span>
   <span class="o">&lt;</span><span class="no">USER</span> <span class="no">ID</span><span class="o">&gt;</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-80dea834-efbf-4c94-89b2-b8f417f85f39"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-1622e459-f15a-4f2c-9c68-c332bb61b20e"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -161,7 +161,7 @@
   <span class="o">.</span><span class="na">entityType</span><span class="o">(</span><span class="s">"user"</span><span class="o">)</span>
   <span class="o">.</span><span class="na">entityId</span><span class="o">(&lt;</span><span class="n">USER_ID</span><span class="o">&gt;);</span>
 <span class="n">client</span><span class="o">.</span><span class="na">createEvent</span><span class="o">(</span><span class="n">userEvent</span><span class="o">);</span>
-</pre></td> </tr></tbody></table> </div> </div> </div> <p>When a new item &quot;i0&quot; is created in your app on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send a <code>$set</code> event for the item. Note that the item is set with categories properties: <code>&quot;c1&quot;</code> and <code>&quot;c2&quot;</code>. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-c17ce070-dd8f-4a50-96c0-e51b6e15885e">REST API</a></li> <li data-lang="python"><a href="#tab-12793332-b769-44f4-bd69-a450419f4e9d">Python SDK</a></li> <li data-lang="php"><a href="#tab-e9d4f5e2-ce1a-4d7f-9076-e8dc897e010f">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-f56e660a-22d5-4f35-81f3-19798135707e">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-8e145ff1-b3c4-42db-8bbb-f48d311ab3e3">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-c17ce070-dd8f-4a50-96c0-e51b6e15885e"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> </div> <p>When a new item &quot;i0&quot; is created in your app on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send a <code>$set</code> event for the item. Note that the item is set with categories properties: <code>&quot;c1&quot;</code> and <code>&quot;c2&quot;</code>. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-214f52df-7b67-4ac9-a8d1-6138b3f0f0f3">REST API</a></li> <li data-lang="python"><a href="#tab-3634db67-7159-4e57-a5d3-feac4a1e3b2e">Python SDK</a></li> <li data-lang="php"><a href="#tab-4dc85302-08df-4873-a1e7-f27d3f57674d">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-1faf345a-dfbe-421c-aefd-4a18d77e7021">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-83699ff4-5167-411f-bd05-956ce3bcd9b1">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-214f52df-7b67-4ac9-a8d1-6138b3f0f0f3"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -182,7 +182,7 @@
   }
   "eventTime" : "2014-11-02T09:39:45.618-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-12793332-b769-44f4-bd69-a450419f4e9d"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-3634db67-7159-4e57-a5d3-feac4a1e3b2e"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -201,7 +201,7 @@
     <span class="s">"categories"</span> <span class="p">:</span> <span class="p">[</span><span class="s">"&lt;CATEGORY_1&gt;"</span><span class="p">,</span> <span class="s">"&lt;CATEGORY_2&gt;"</span><span class="p">]</span>
   <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-e9d4f5e2-ce1a-4d7f-9076-e8dc897e010f"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-4dc85302-08df-4873-a1e7-f27d3f57674d"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -218,7 +218,7 @@
   <span class="s1">'properties'</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span><span class="s1">'categories'</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span><span class="s1">'&lt;CATEGORY_1&gt;'</span><span class="p">,</span> <span class="s1">'&lt;CATEGORY_2&gt;'</span><span class="p">))</span>
 <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-f56e660a-22d5-4f35-81f3-19798135707e"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-1faf345a-dfbe-421c-aefd-4a18d77e7021"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -235,7 +235,7 @@
   <span class="p">}</span>
 <span class="p">)</span>
 
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-8e145ff1-b3c4-42db-8bbb-f48d311ab3e3"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-83699ff4-5167-411f-bd05-956ce3bcd9b1"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -248,7 +248,7 @@
   <span class="o">.</span><span class="na">entityId</span><span class="o">(&lt;</span><span class="n">ITEM_ID</span><span class="o">&gt;)</span>
   <span class="o">.</span><span class="na">property</span><span class="o">(</span><span class="s">"categories"</span><span class="o">,</span> <span class="n">ImmutableList</span><span class="o">.</span><span class="na">of</span><span class="o">(</span><span class="s">"&lt;CATEGORY_1&gt;"</span><span class="o">,</span> <span class="s">"&lt;CATEGORY_2&gt;"</span><span class="o">));</span>
 <span class="n">client</span><span class="o">.</span><span class="na">createEvent</span><span class="o">(</span><span class="n">itemEvent</span><span class="o">)</span>
-</pre></td> </tr></tbody></table> </div> </div> </div> <p>The properties of the <code>user</code> and <code>item</code> can be set, unset, or delete by special events <strong>$set</strong>, <strong>$unset</strong> and <strong>$delete</strong>. Please refer to <a href="/datacollection/eventapi/#note-about-properties">Event API</a> for more details of using these events.</p><p>When the user &quot;u0&quot; view item &quot;i0&quot; on time <code>2014-11-10T12:34:56.123-08:00</code> (current time will be used if eventTime is not specified), you can send a view event. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-1c730e8d-558e-4b32-9ed8-0ce63033b0f5">REST API</a></li> <li data-lang="python"><a href="#tab-c75d4c65-5f9b-4ea6-a59b-554e8f45bb5a">Python SDK</a></li> <li data-lang="php"><a href="#tab-1912f66a-ab4e-486b-bc1d-2d9ae97efe4d">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-8e84db5c-358a-4f43-b703-19e7c44f0efb">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-32f2a5e6-838b-4968-ab29-6bf704ba2c98">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-1c730e8d-558e-4b32-9ed8-0ce63033b0f5"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> </div> <p>The properties of the <code>user</code> and <code>item</code> can be set, unset, or delete by special events <strong>$set</strong>, <strong>$unset</strong> and <strong>$delete</strong>. Please refer to <a href="/datacollection/eventapi/#note-about-properties">Event API</a> for more details of using these events.</p><p>When the user &quot;u0&quot; view item &quot;i0&quot; on time <code>2014-11-10T12:34:56.123-08:00</code> (current time will be used if eventTime is not specified), you can send a view event. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-d91fe71b-63d9-4127-b506-f54da104c473">REST API</a></li> <li data-lang="python"><a href="#tab-98c347a1-f4a3-405b-b2f8-00fee337a60b">Python SDK</a></li> <li data-lang="php"><a href="#tab-85d9df28-8ac9-4a61-b607-22a78c8745aa">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-2ad93d20-cf18-4dc9-a9ad-302e56f12e25">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-c6fa53a6-5d89-446c-a26b-762120acbe4b">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-d91fe71b-63d9-4127-b506-f54da104c473"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -267,7 +267,7 @@
   "targetEntityId" : "i0",
   "eventTime" : "2014-11-10T12:34:56.123-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-c75d4c65-5f9b-4ea6-a59b-554e8f45bb5a"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-98c347a1-f4a3-405b-b2f8-00fee337a60b"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -284,7 +284,7 @@
   <span class="n">target_entity_type</span><span class="o">=</span><span class="s">"item"</span><span class="p">,</span>
   <span class="n">target_entity_id</span><span class="o">=&lt;</span><span class="n">ITEM</span> <span class="n">ID</span><span class="o">&gt;</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-1912f66a-ab4e-486b-bc1d-2d9ae97efe4d"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-85d9df28-8ac9-4a61-b607-22a78c8745aa"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -303,7 +303,7 @@
    <span class="s1">'targetEntityId'</span> <span class="o">=&gt;</span> <span class="o">&lt;</span><span class="nx">ITEM</span> <span class="nx">ID</span><span class="o">&gt;</span>
 <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-8e84db5c-358a-4f43-b703-19e7c44f0efb"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-2ad93d20-cf18-4dc9-a9ad-302e56f12e25"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -322,7 +322,7 @@
   <span class="p">}</span>
 <span class="p">)</span>
 
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-32f2a5e6-838b-4968-ab29-6bf704ba2c98"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-c6fa53a6-5d89-446c-a26b-762120acbe4b"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -337,7 +337,7 @@
     <span class="o">.</span><span class="na">targetEntityType</span><span class="o">(</span><span class="s">"item"</span><span class="o">)</span>
     <span class="o">.</span><span class="na">targetEntityId</span><span class="o">(&lt;</span><span class="n">ITEM_ID</span><span class="o">&gt;);</span>
 <span class="n">client</span><span class="o">.</span><span class="na">createEvent</span><span class="o">(</span><span class="n">viewEvent</span><span class="o">);</span>
-</pre></td> </tr></tbody></table> </div> </div> </div> <p>When the user &quot;u0&quot; buy item &quot;i0&quot; on time <code>2014-11-10T13:00:00.123-08:00</code> (current time will be used if eventTime is not specified), you can send a view event. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-315f1293-9418-4573-a635-63502de7fe4b">REST API</a></li> <li data-lang="python"><a href="#tab-ff14e725-9931-4766-bedd-f968ff6934a4">Python SDK</a></li> <li data-lang="php"><a href="#tab-3688567a-4284-45ba-9ddd-4b9264884fb4">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-2e4faba9-4c63-4000-81a1-017f27e9be42">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-8b569cbe-bf3a-49d2-9257-5b7585821a33">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-315f1293-9418-4573-a635-63502de7fe4b"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> </div> <p>When the user &quot;u0&quot; buy item &quot;i0&quot; on time <code>2014-11-10T13:00:00.123-08:00</code> (current time will be used if eventTime is not specified), you can send a view event. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-63aef91d-6095-4e97-b47e-75a22a190287">REST API</a></li> <li data-lang="python"><a href="#tab-1f9cb3de-9738-4692-aaa3-3c1fc3c948d6">Python SDK</a></li> <li data-lang="php"><a href="#tab-1b627a88-e603-43c4-b51a-7ca7add2e2be">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-b3b45a86-73c9-49a4-b0c5-01987b5d9430">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-5f85b8b3-15d8-4f31-8ccd-381345e8f188">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-63aef91d-6095-4e97-b47e-75a22a190287"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
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@@ -356,7 +356,7 @@
   "targetEntityId" : "i0",
   "eventTime" : "2014-11-10T13:00:00.123-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-ff14e725-9931-4766-bedd-f968ff6934a4"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-1f9cb3de-9738-4692-aaa3-3c1fc3c948d6"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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 4
@@ -373,7 +373,7 @@
   <span class="n">target_entity_type</span><span class="o">=</span><span class="s">"item"</span><span class="p">,</span>
   <span class="n">target_entity_id</span><span class="o">=&lt;</span><span class="n">ITEM</span> <span class="n">ID</span><span class="o">&gt;</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-3688567a-4284-45ba-9ddd-4b9264884fb4"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-1b627a88-e603-43c4-b51a-7ca7add2e2be"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -392,7 +392,7 @@
    <span class="s1">'targetEntityId'</span> <span class="o">=&gt;</span> <span class="o">&lt;</span><span class="nx">ITEM</span> <span class="nx">ID</span><span class="o">&gt;</span>
 <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-2e4faba9-4c63-4000-81a1-017f27e9be42"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-b3b45a86-73c9-49a4-b0c5-01987b5d9430"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -409,7 +409,7 @@
     <span class="s1">'targetEntityId'</span> <span class="o">=&gt;</span> <span class="o">&lt;</span><span class="no">ITEM</span> <span class="no">ID</span><span class="o">&gt;</span>
   <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-8b569cbe-bf3a-49d2-9257-5b7585821a33"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-5f85b8b3-15d8-4f31-8ccd-381345e8f188"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -490,19 +490,19 @@
 </pre></td></tr></tbody></table> </div> <p>When the engine is deployed successfully and running, you should see a console message similar to the following:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2</pre></td><td class="code"><pre><span class="o">[</span>INFO] <span class="o">[</span>HttpListener] Bound to /0.0.0.0:8000
 <span class="o">[</span>INFO] <span class="o">[</span>MasterActor] Bind successful. Ready to serve.
-</pre></td></tr></tbody></table> </div> <p>Do not kill the deployed engine process.</p><p>By default, the deployed engine binds to <a href="http://localhost:8000"><a href="http://localhost:8000">http://localhost:8000</a></a>. You can visit that page in your web browser to check its status.</p><p><img alt="Engine Status" src="/images/engine-server-3246414b.png"/></p></p><h2 id='6.-use-the-engine' class='header-anchors'>6. Use the Engine</h2><p>Now, You can retrieve predicted results. To recommend 4 items to user ID &quot;u1&quot;. You send this JSON <code>{ &quot;userEntityId&quot;: &quot;u1&quot;, &quot;number&quot;: 4 }</code> to the deployed engine and it will return a JSON of the recommended items. Simply send a query by making a HTTP request or through the <code>EngineClient</code> of an SDK.</p><p>With the deployed engine running, open another terminal and run the following <code>curl</code> command or use SDK to send the query:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-00801481-3dc9-4e5a-aeae-aa9dd98d1234">REST API</a></li> <li data-lang="python"><a href="#tab-51b89128-53dd-43f9-bddd-4ceaba36a865">Python SDK</a></li> <li data-lang="php"><a href="#tab-9a8b7dea-8758-4cc7-b36c-f6bafa6f6cac">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-41bcedac-4bcd-4740-b982-f889b6bcc33c">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-a2969cb1-2f19-43d2-b94c-bec183062786">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-00801481-3dc9-4e5a-aeae-aa9dd98d1234"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p>Do not kill the deployed engine process.</p><p>By default, the deployed engine binds to <a href="http://localhost:8000"><a href="http://localhost:8000">http://localhost:8000</a></a>. You can visit that page in your web browser to check its status.</p><p><img alt="Engine Status" src="/images/engine-server-3246414b.png"/></p></p><h2 id='6.-use-the-engine' class='header-anchors'>6. Use the Engine</h2><p>Now, You can retrieve predicted results. To recommend 4 items to user ID &quot;u1&quot;. You send this JSON <code>{ &quot;userEntityId&quot;: &quot;u1&quot;, &quot;number&quot;: 4 }</code> to the deployed engine and it will return a JSON of the recommended items. Simply send a query by making a HTTP request or through the <code>EngineClient</code> of an SDK.</p><p>With the deployed engine running, open another terminal and run the following <code>curl</code> command or use SDK to send the query:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-416715cd-0349-41ca-90ea-66ef67e1772f">REST API</a></li> <li data-lang="python"><a href="#tab-87f2e425-ea6b-46e3-aae9-cc7771c617fc">Python SDK</a></li> <li data-lang="php"><a href="#tab-de4c792b-95a2-4114-ab2c-818794aae1be">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-6e5e6cc5-6e0a-4398-8591-f95715f0a513">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-7a6c2e91-20f1-4193-b8ed-dc4b32ac76a6">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-416715cd-0349-41ca-90ea-66ef67e1772f"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4</pre></td> <td class="code"><pre><span class="gp">$ </span>curl -H <span class="s2">"Content-Type: application/json"</span> <span class="se">\</span>
 -d <span class="s1">'{ "userEntityId": "u1", "number": 4 }'</span> <span class="se">\</span>
 http://localhost:8000/queries.json
 
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-51b89128-53dd-43f9-bddd-4ceaba36a865"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-87f2e425-ea6b-46e3-aae9-cc7771c617fc"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3</pre></td> <td class="code"><pre><span class="kn">import</span> <span class="nn">predictionio</span>
 <span class="n">engine_client</span> <span class="o">=</span> <span class="n">predictionio</span><span class="o">.</span><span class="n">EngineClient</span><span class="p">(</span><span class="n">url</span><span class="o">=</span><span class="s">"http://localhost:8000"</span><span class="p">)</span>
 <span class="k">print</span> <span class="n">engine_client</span><span class="o">.</span><span class="n">send_query</span><span class="p">({</span><span class="s">"userEntityId"</span><span class="p">:</span> <span class="s">"u1"</span><span class="p">,</span> <span class="s">"number"</span><span class="p">:</span> <span class="mi">4</span><span class="p">})</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-9a8b7dea-8758-4cc7-b36c-f6bafa6f6cac"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-de4c792b-95a2-4114-ab2c-818794aae1be"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -521,7 +521,7 @@
 <span class="nb">print_r</span><span class="p">(</span><span class="nv">$response</span><span class="p">);</span>
 
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-41bcedac-4bcd-4740-b982-f889b6bcc33c"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-6e5e6cc5-6e0a-4398-8591-f95715f0a513"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
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@@ -534,7 +534,7 @@
 <span class="n">response</span> <span class="o">=</span> <span class="n">client</span><span class="p">.</span><span class="nf">send_query</span><span class="p">(</span><span class="s1">'userEntityId'</span> <span class="o">=&gt;</span> <span class="s1">'i1'</span><span class="p">,</span> <span class="s1">'number'</span> <span class="o">=&gt;</span> <span class="mi">4</span><span class="p">)</span>
 
 <span class="nb">puts</span> <span class="n">response</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-a2969cb1-2f19-43d2-b94c-bec183062786"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-7a6c2e91-20f1-4193-b8ed-dc4b32ac76a6"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -578,7 +578,7 @@
     <span class="o">{</span><span class="s2">"itemEntityId"</span>:<span class="s2">"i3"</span>,<span class="s2">"score"</span>:0.003007015026561692<span class="o">}</span>
   <span class="o">]</span>
 <span class="o">}</span>
-</pre></td></tr></tbody></table> </div> <p><em>MyECommerceRecommendation</em> is now running.</p> <div class="alert-message info"><p>To update the model periodically with new data, simply set up a cron job to call <code>pio train</code> and <code>pio deploy</code>. The engine will continue to serve prediction results during the re-train process. After the training is completed, <code>pio deploy</code> will automatically shutdown the existing engine server and bring up a new process on the same port.</p></div><div class="alert-message info"><p><strong>Note that if you import a <em>large</em> data set</strong> and the training seems to be taking forever or getting stuck, it&#39;s likely that there is not enough executor memory. It&#39;s recommended to setup a Spark standalone cluster, you&#39;ll need to specify more driver and executor memory when training with a large data set. Please see <a href="/resources/faq/#engine-training">FAQ here</a> for instructions.</p></div> <h2 id='setting-constraint-&quot;unavailableitems&quot;' class='header-anchors'>Setting constraint &quot;unavailableItems&quot;</h2><p>Now let&#39;s send an item constraint &quot;unavailableItems&quot; (replace accessKey with your Access Key):</p><div class="alert-message note"><p>You can also use SDK to send this event as described in the SDK sample above.</p></div><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-1106f990-3b6f-4bed-8bde-96a39ac739b2">REST API</a></li> <li data-lang="python"><a href="#tab-c8bef8fb-c6fa-49fe-82b3-18f847305e2c">Python SDK</a></li> <li data-lang="php"><a href="#tab-f8329aa6-eb10-4169-a224-33e359c16cd0">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-e1d5be5f-43ff-4936-9603-f6bf125daa5b">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-81090625-8310-4179-b827-8b274beaa395">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-1106f990-3b6f-4bed-8bde-96a39ac739b2"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p><em>MyECommerceRecommendation</em> is now running.</p> <div class="alert-message info"><p>To update the model periodically with new data, simply set up a cron job to call <code>pio train</code> and <code>pio deploy</code>. The engine will continue to serve prediction results during the re-train process. After the training is completed, <code>pio deploy</code> will automatically shutdown the existing engine server and bring up a new process on the same port.</p></div><div class="alert-message info"><p><strong>Note that if you import a <em>large</em> data set</strong> and the training seems to be taking forever or getting stuck, it&#39;s likely that there is not enough executor memory. It&#39;s recommended to setup a Spark standalone cluster, you&#39;ll need to specify more driver and executor memory when training with a large data set. Please see <a href="/resources/faq/#engine-training">FAQ here</a> for instructions.</p></div> <h2 id='setting-constraint-&quot;unavailableitems&quot;' class='header-anchors'>Setting constraint &quot;unavailableItems&quot;</h2><p>Now let&#39;s send an item constraint &quot;unavailableItems&quot; (replace accessKey with your Access Key):</p><div class="alert-message note"><p>You can also use SDK to send this event as described in the SDK sample above.</p></div><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-bbd74157-47e9-4cce-94a7-279c15265ab6">REST API</a></li> <li data-lang="python"><a href="#tab-711484ad-6327-4d68-9ba2-401a76a6950c">Python SDK</a></li> <li data-lang="php"><a href="#tab-0320e948-c450-423c-bed2-92d1656cf9fa">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-56eb0f68-a077-4c69-9776-ff8108904e90">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-47bcd853-8d13-4427-b782-df8ad1d23452">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-bbd74157-47e9-4cce-94a7-279c15265ab6"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -599,7 +599,7 @@
   }
   "eventTime" : "2015-02-17T02:11:21.934Z"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-c8bef8fb-c6fa-49fe-82b3-18f847305e2c"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-711484ad-6327-4d68-9ba2-401a76a6950c"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -618,7 +618,7 @@
     <span class="s">"items"</span> <span class="p">:</span> <span class="p">[</span><span class="s">"&lt;ITEM ID1&gt;"</span><span class="p">,</span> <span class="s">"&lt;ITEM ID2&gt;"</span><span class="p">]</span>
   <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-f8329aa6-eb10-4169-a224-33e359c16cd0"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-0320e948-c450-423c-bed2-92d1656cf9fa"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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 4
@@ -635,7 +635,7 @@
   <span class="s1">'properties'</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span><span class="s1">'items'</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span><span class="s1">'&lt;ITEM ID1&gt;'</span><span class="p">,</span> <span class="s1">'&lt;ITEM ID2&gt;'</span><span class="p">))</span>
 <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-e1d5be5f-43ff-4936-9603-f6bf125daa5b"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-56eb0f68-a077-4c69-9776-ff8108904e90"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
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 4
@@ -650,7 +650,7 @@
     <span class="s1">'properties'</span> <span class="o">=&gt;</span> <span class="p">{</span> <span class="s1">'items'</span> <span class="o">=&gt;</span> <span class="p">[</span><span class="s1">'&lt;ITEM ID1&gt;'</span><span class="p">,</span> <span class="s1">'&lt;ITEM ID2&gt;'</span><span class="p">]</span> <span class="p">}</span>
   <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-81090625-8310-4179-b827-8b274beaa395"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-47bcd853-8d13-4427-b782-df8ad1d23452"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
diff --git a/templates/leadscoring/quickstart/index.html b/templates/leadscoring/quickstart/index.html
index 572caf7..d00e3b1 100644
--- a/templates/leadscoring/quickstart/index.html
+++ b/templates/leadscoring/quickstart/index.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html><head><title>Quick Start - Lead Scoring Engine Template</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Quick Start - Lead Scoring Engine Template"/><link rel="canonical" href="https://predictionio.apache.org/templates/leadscoring/quickstart/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script src="//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script><script src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: true });}catch(e){}</script></head><body><div id="global"><header><div class="container" id="header-wrapper"><div class="row"><div class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a href="#"></a><a href="http://predictionio.apache.org/"><img alt="Apache PredictionIO" id="logo" src="/images/logos/logo-ee2b9bb3.png"/></a><span>®</span></div><div id="menu-wrapper"><div id="pill-wrapper"><a class="pill left" href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" href="//github.com/apache/predictionio/">OPEN SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md hidden-lg" src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Quick Start - Lead Scoring Engine Template</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="page-title"><h1>Quick Start - Lead Scoring Engine Template</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#usage">Usage</a> </li> <li> <a href="#1-install-and-run-predictionio">1. Install and Run PredictionIO</a> </li> <li> <a href="#2-create-a-new-engine-from-an-engine-template">2. Create a new Engine from an Engine Template</a> </li> <li> <a href="#3-generate-an-app-id-and-access-key">3. Generate an App ID and Access Key</a> </li> <li> <a href="#4-collecting-data">4. Collecting Data</a> </li> <li> <a href="#5-deploy-the-engine-as-a-service">5. Deploy the Engine as a Service</a> </li> <li> <a href="#6-use-the-engine">6. Use the Engine</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/templates/leadscoring/quickstart.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="page-title"><h1>Quick Start - Lead Scoring Engine Template</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>This engine template predicts the probability of an user will convert (conversion event by user) in the current session.</p><div class="alert-message warning"><p>This template requires PredictionIO version &gt;= 0.9.0</p></div><h2 id='usage' class='header-anchors'>Usage</h2><h3 id='event-data-requirements' class='header-anchors'>Event Data Requirements</h3><p>By default, the template requires the following events to be collected:</p> <ul> <li>&#39;page view&#39; events with session ID</li> <li>the first page view event can optionally provide the browser and referrer ID</li> <li>user &#39;buy&#39; event with session ID</li> </ul> <p>The landing page ID, referrer ID, browser information and user&#39;s buy event will be used to train the model.</p><div class="alert-message note"><p>You can customize what the &quot;conversion&quot; event is. It&#39;s &quot;buy&quot; item event by default but it can be modified to others such as &quot;subscribe&quot;.</p></div><h3 id='input-query' class='header-anchors'>Input Query</h3> <ul> <li>Landing page ID</li> <li>Referrer ID</li> <li>Browser</li> </ul> <h3 id='output-predictedresult' class='header-anchors'>Output PredictedResult</h3> <ul> <li>score</li> </ul> <h2 id='1.-install-and-run-predictionio' class='header-anchors'>1. Install and Run PredictionIO</h2> <p>First you need to <a href="/install">install PredictionIO 0.13.0</a> (if you haven&#39;t done it).</p><p>Let&#39;s say you have installed PredictionIO at <code>/home/yourname/PredictionIO/</code>. For convenience, add PredictionIO&#39;s binary command path to your <code>PATH</code>, i.e. <code>/home/yourname/PredictionIO/bin</code>:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nv">PATH</span><span class="o">=</span><span class="nv">$PATH</span>:/home/yourname/PredictionIO/bin; <span class="nb">export </span>PATH
+<!DOCTYPE html><html><head><title>Quick Start - Lead Scoring Engine Template</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Quick Start - Lead Scoring Engine Template"/><link rel="canonical" href="https://predictionio.apache.org/templates/leadscoring/quickstart/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script src="//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script><script src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: true });}catch(e){}</script></head><body><div id="global"><header><div class="container" id="header-wrapper"><div class="row"><div class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a href="#"></a><a href="http://predictionio.apache.org/"><img alt="Apache PredictionIO" id="logo" src="/images/logos/logo-ee2b9bb3.png"/></a><span>®</span></div><div id="menu-wrapper"><div id="pill-wrapper"><a class="pill left" href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" href="//github.com/apache/predictionio/">OPEN SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md hidden-lg" src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Quick Start - Lead Scoring Engine Template</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="page-title"><h1>Quick Start - Lead Scoring Engine Template</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#usage">Usage</a> </li> <li> <a href="#1-install-and-run-predictionio">1. Install and Run PredictionIO</a> </li> <li> <a href="#2-create-a-new-engine-from-an-engine-template">2. Create a new Engine from an Engine Template</a> </li> <li> <a href="#3-generate-an-app-id-and-access-key">3. Generate an App ID and Access Key</a> </li> <li> <a href="#4-collecting-data">4. Collecting Data</a> </li> <li> <a href="#5-deploy-the-engine-as-a-service">5. Deploy the Engine as a Service</a> </li> <li> <a href="#6-use-the-engine">6. Use the Engine</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/templates/leadscoring/quickstart.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="page-title"><h1>Quick Start - Lead Scoring Engine Template</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>This engine template predicts the probability of an user will convert (conversion event by user) in the current session.</p><div class="alert-message warning"><p>This template requires PredictionIO version &gt;= 0.9.0</p></div><h2 id='usage' class='header-anchors'>Usage</h2><h3 id='event-data-requirements' class='header-anchors'>Event Data Requirements</h3><p>By default, the template requires the following events to be collected:</p> <ul> <li>&#39;page view&#39; events with session ID</li> <li>the first page view event can optionally provide the browser and referrer ID</li> <li>user &#39;buy&#39; event with session ID</li> </ul> <p>The landing page ID, referrer ID, browser information and user&#39;s buy event will be used to train the model.</p><div class="alert-message note"><p>You can customize what the &quot;conversion&quot; event is. It&#39;s &quot;buy&quot; item event by default but it can be modified to others such as &quot;subscribe&quot;.</p></div><h3 id='input-query' class='header-anchors'>Input Query</h3> <ul> <li>Landing page ID</li> <li>Referrer ID</li> <li>Browser</li> </ul> <h3 id='output-predictedresult' class='header-anchors'>Output PredictedResult</h3> <ul> <li>score</li> </ul> <h2 id='1.-install-and-run-predictionio' class='header-anchors'>1. Install and Run PredictionIO</h2> <p>First you need to <a href="/install">install PredictionIO 0.14.0</a> (if you haven&#39;t done it).</p><p>Let&#39;s say you have installed PredictionIO at <code>/home/yourname/PredictionIO/</code>. For convenience, add PredictionIO&#39;s binary command path to your <code>PATH</code>, i.e. <code>/home/yourname/PredictionIO/bin</code>:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nv">PATH</span><span class="o">=</span><span class="nv">$PATH</span>:/home/yourname/PredictionIO/bin; <span class="nb">export </span>PATH
 </pre></td></tr></tbody></table> </div> <div class="alert-message note"><p>If you launched <strong>PredictionIO AWS instance</strong>, the path is located at <code>/opt/PredictionIO/bin</code>.</p></div><p>Once you have completed the installation process, please make sure all the components (PredictionIO Event Server, Elasticsearch, and HBase) are up and running.</p><div class="alert-message note"><p>If you launched <strong>PredictionIO AWS instance</strong>, you can skip <code>pio-start-all</code>. All components should have been started automatically.</p></div><p>If you are using PostgreSQL or MySQL, run the following to start PredictionIO Event Server:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio eventserver &amp;
 </pre></td></tr></tbody></table> </div> <p>If instead you are running HBase and Elasticsearch, run the following to start all PredictionIO Event Server, HBase, and Elasticsearch:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio-start-all
 </pre></td></tr></tbody></table> </div> <p>You can check the status by running:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio status
@@ -32,7 +32,7 @@
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>               MyApp1 |    1 | 3mZWDzci2D5YsqAnqNnXH9SB6Rg3dsTBs8iHkK6X2i54IQsIZI1eEeQQyMfs7b3F | <span class="o">(</span>all<span class="o">)</span>
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>               MyApp2 |    2 | io5lz6Eg4m3Xe4JZTBFE13GMAf1dhFl6ZteuJfrO84XpdOz9wRCrDU44EUaYuXq5 | <span class="o">(</span>all<span class="o">)</span>
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span> Finished listing 2 app<span class="o">(</span>s<span class="o">)</span>.
-</pre></td></tr></tbody></table> </div> <p><a href="#"></a></p> <h2 id='4.-collecting-data' class='header-anchors'>4. Collecting Data</h2><p>Next, let&#39;s collect training data for this Engine. By default, Lead Scoring Engine Template supports the following entities: <strong>user</strong>, <strong>page</strong>, and <strong>item</strong>. An user views a page, and buys an item.</p><p>Note that a &quot;sessionId&quot; property is required to indicate these events happen in the same session. In the first visit of a user, you should specify the optional &quot;referrral ID&quot; and &quot;browser&quot; information. These are used to determine where the user comes from and the browser information.</p><p>In summary, this template requires user-view-page event and user-buy-item events with the session ID, referrer ID and browser properties.</p> <p>You can send these events to PredictionIO Event Server in real-time easily by making a HTTP request or through the provided SDK. Please see <a href="/appintegration/">App Integration Overview</a> for more details how to integrate your app with SDK.</p><p>Let&#39;s try sending events to EventServer with the following <code>curl</code> commands (The corresponding SDK code is showed in other tabs).</p><p>Replace <code>&lt;ACCCESS_KEY&gt;</code> by the Access Key generated in above steps. Note that <code>localhost:7070</code> is the default URL of the Event Server.</p><p>For convenience, set your access key to the shell variable, run:</p><p><code>$ ACCESS_KEY=&lt;ACCESS_KEY&gt;</code></p> <p><a href="#"></a></p> <p>For example, when an user with ID u0 views a URL page &quot;example.com/page0&quot; on time <code>2014-11-02T09:39:45.618-08:00</code>, with session ID &quot;akdj230fj8ass&quot; (current time will be used if eventTime is not specified) you can send the event to Event Server. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-3c4abfc6-bf3a-42b3-ae37-136a1ebf829c">REST API</a></li> <li data-lang="python"><a href="#tab-bcbf1fb3-e21e-4566-b03c-cb6db165ddea">Python SDK</a></li> <li data-lang="php"><a href="#tab-2e61c294-dbc6-478e-a051-da58a4c9943c">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-318c716f-77c0-4fb6-92eb-c7c5998911fe">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-d3dee809-8be7-4da9-8614-6b9fc63b115e">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-3c4abfc6-bf3a-42b3-ae37-136a1ebf829c"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p><a href="#"></a></p> <h2 id='4.-collecting-data' class='header-anchors'>4. Collecting Data</h2><p>Next, let&#39;s collect training data for this Engine. By default, Lead Scoring Engine Template supports the following entities: <strong>user</strong>, <strong>page</strong>, and <strong>item</strong>. An user views a page, and buys an item.</p><p>Note that a &quot;sessionId&quot; property is required to indicate these events happen in the same session. In the first visit of a user, you should specify the optional &quot;referrral ID&quot; and &quot;browser&quot; information. These are used to determine where the user comes from and the browser information.</p><p>In summary, this template requires user-view-page event and user-buy-item events with the session ID, referrer ID and browser properties.</p> <p>You can send these events to PredictionIO Event Server in real-time easily by making a HTTP request or through the provided SDK. Please see <a href="/appintegration/">App Integration Overview</a> for more details how to integrate your app with SDK.</p><p>Let&#39;s try sending events to EventServer with the following <code>curl</code> commands (The corresponding SDK code is showed in other tabs).</p><p>Replace <code>&lt;ACCCESS_KEY&gt;</code> by the Access Key generated in above steps. Note that <code>localhost:7070</code> is the default URL of the Event Server.</p><p>For convenience, set your access key to the shell variable, run:</p><p><code>$ ACCESS_KEY=&lt;ACCESS_KEY&gt;</code></p> <p><a href="#"></a></p> <p>For example, when an user with ID u0 views a URL page &quot;example.com/page0&quot; on time <code>2014-11-02T09:39:45.618-08:00</code>, with session ID &quot;akdj230fj8ass&quot; (current time will be used if eventTime is not specified) you can send the event to Event Server. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-70442c15-5ef2-4681-b38d-73f2130980e2">REST API</a></li> <li data-lang="python"><a href="#tab-5fe8472f-074c-4519-b705-432eb1a4e33c">Python SDK</a></li> <li data-lang="php"><a href="#tab-1c72ade9-1152-4360-a337-32264c21edbe">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-e0f1bf92-4cf9-4fe4-9c02-dff4e49e42c7">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-6020ddd0-b146-4dee-9703-6c3799298e65">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-70442c15-5ef2-4681-b38d-73f2130980e2"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -61,7 +61,7 @@
   }
   "eventTime" : "2014-11-02T09:39:45.618-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-bcbf1fb3-e21e-4566-b03c-cb6db165ddea"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-5fe8472f-074c-4519-b705-432eb1a4e33c"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -106,7 +106,7 @@
     <span class="s">"browser"</span><span class="p">:</span> <span class="o">&lt;</span><span class="n">BROWSER</span><span class="o">&gt;</span> <span class="c"># optinal. but should specify this if you have this information when user views the landing page</span>
   <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-2e61c294-dbc6-478e-a051-da58a4c9943c"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-1c72ade9-1152-4360-a337-32264c21edbe"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -145,7 +145,7 @@
   <span class="p">)</span>
 <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-318c716f-77c0-4fb6-92eb-c7c5998911fe"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-e0f1bf92-4cf9-4fe4-9c02-dff4e49e42c7"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -178,7 +178,7 @@
     <span class="p">}</span>
   <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-d3dee809-8be7-4da9-8614-6b9fc63b115e"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-6020ddd0-b146-4dee-9703-6c3799298e65"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -213,7 +213,7 @@
     <span class="o">.</span><span class="na">property</span><span class="o">(</span><span class="s">"referrerId"</span><span class="o">,</span> <span class="s">"&lt;REFERRER ID&gt;"</span><span class="o">)</span>
     <span class="o">.</span><span class="na">property</span><span class="o">(</span><span class="s">"browser"</span><span class="o">,</span> <span class="s">"&lt;BROWSER&gt;"</span><span class="o">);</span>
 <span class="n">client</span><span class="o">.</span><span class="na">createEvent</span><span class="o">(</span><span class="n">viewEvent</span><span class="o">);</span>
-</pre></td> </tr></tbody></table> </div> </div> </div> <p>In the same browsing session &quot;akdj230fj8ass&quot;, the user with ID u0 buys an item i0 on time <code>2014-11-02T09:42:00.123-08:00</code> (current time will be used if eventTime is not specified), you can send the following buy event. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-dbc75f30-8f51-40d4-8ec0-5e889fd06383">REST API</a></li> <li data-lang="python"><a href="#tab-0b65afd1-6e72-4101-9ec4-b4c0f9afcefe">Python SDK</a></li> <li data-lang="php"><a href="#tab-454fd981-1c63-4060-82e6-6461857c07a5">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-bfa146c9-c585-4188-85aa-7bbc913d0f40">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-044e52fe-46c0-43a4-bd87-fedb89731cd2">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-dbc75f30-8f51-40d4-8ec0-5e889fd06383"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> </div> <p>In the same browsing session &quot;akdj230fj8ass&quot;, the user with ID u0 buys an item i0 on time <code>2014-11-02T09:42:00.123-08:00</code> (current time will be used if eventTime is not specified), you can send the following buy event. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-cdc7559f-a323-41c8-b5e8-b1e51b3816b0">REST API</a></li> <li data-lang="python"><a href="#tab-4b775449-b459-4b79-94c5-62715b658374">Python SDK</a></li> <li data-lang="php"><a href="#tab-a4bfb395-387c-4a1a-9614-c1a4e75d4910">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-e7cf4d19-2034-4559-8b3c-3da2f95ed37e">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-5fc7a229-3975-4b64-b6c4-db88f4713f56">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-cdc7559f-a323-41c8-b5e8-b1e51b3816b0"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -238,7 +238,7 @@
   }
   "eventTime" : "2014-11-02T09:42:00.123-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-0b65afd1-6e72-4101-9ec4-b4c0f9afcefe"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-4b775449-b459-4b79-94c5-62715b658374"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -261,7 +261,7 @@
     <span class="s">"sessionId"</span><span class="p">:</span> <span class="o">&lt;</span><span class="n">SESSION</span> <span class="n">ID</span><span class="o">&gt;</span><span class="p">,</span> <span class="c"># required</span>
   <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-454fd981-1c63-4060-82e6-6461857c07a5"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-a4bfb395-387c-4a1a-9614-c1a4e75d4910"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -288,7 +288,7 @@
 <span class="p">));</span>
 
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-bfa146c9-c585-4188-85aa-7bbc913d0f40"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-e7cf4d19-2034-4559-8b3c-3da2f95ed37e"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -311,7 +311,7 @@
     <span class="p">}</span>
   <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-044e52fe-46c0-43a4-bd87-fedb89731cd2"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-5fc7a229-3975-4b64-b6c4-db88f4713f56"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -371,7 +371,7 @@
 </pre></td></tr></tbody></table> </div> <p>When the engine is deployed successfully and running, you should see a console message similar to the following:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2</pre></td><td class="code"><pre><span class="o">[</span>INFO] <span class="o">[</span>HttpListener] Bound to /0.0.0.0:8000
 <span class="o">[</span>INFO] <span class="o">[</span>MasterActor] Bind successful. Ready to serve.
-</pre></td></tr></tbody></table> </div> <p>Do not kill the deployed engine process.</p><p>By default, the deployed engine binds to <a href="http://localhost:8000"><a href="http://localhost:8000">http://localhost:8000</a></a>. You can visit that page in your web browser to check its status.</p><p><img alt="Engine Status" src="/images/engine-server-3246414b.png"/></p></p><h2 id='6.-use-the-engine' class='header-anchors'>6. Use the Engine</h2><p>Now, You can retrieve the results. When a user lands on your page &quot;example.com/page9&quot;, with referrer &quot;referrer10.com&quot; and browser &quot;Firefox&quot;, you can get the predicted lead score by sending this JSON &#39;{ &quot;landingPageId&quot; : &quot;example.com/page9&quot;, &quot;referrerId&quot; : &quot;referrer10.com&quot;, &quot;browser&quot;: &quot;Firefox&quot; }&#39; to the deployed engine. The engine will return a JSON with the score.</p><p>Simply send a query by making a HTTP request or through the <code>EngineClient</code> of an SDK.</p><p>With the deployed engine running, open another terminal and run the following <code>curl</code> command or use SDK to send the query:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-833fcb7b-9ad8-44ff-9baf-28623578a3fb">REST API</a></li> <li data-lang="python"><a href="#tab-733615f4-4521-47b3-b7a5-853f17f210d8">Python SDK</a></li> <li data-lang="php"><a href="#tab-bf066096-08cd-4600-8cc3-91d3bda4e892">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-8d548034-77c5-4ea3-806b-f0ead16f5431">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-010d0755-9146-4844-987f-ddc3ad773896">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-833fcb7b-9ad8-44ff-9baf-28623578a3fb"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p>Do not kill the deployed engine process.</p><p>By default, the deployed engine binds to <a href="http://localhost:8000"><a href="http://localhost:8000">http://localhost:8000</a></a>. You can visit that page in your web browser to check its status.</p><p><img alt="Engine Status" src="/images/engine-server-3246414b.png"/></p></p><h2 id='6.-use-the-engine' class='header-anchors'>6. Use the Engine</h2><p>Now, You can retrieve the results. When a user lands on your page &quot;example.com/page9&quot;, with referrer &quot;referrer10.com&quot; and browser &quot;Firefox&quot;, you can get the predicted lead score by sending this JSON &#39;{ &quot;landingPageId&quot; : &quot;example.com/page9&quot;, &quot;referrerId&quot; : &quot;referrer10.com&quot;, &quot;browser&quot;: &quot;Firefox&quot; }&#39; to the deployed engine. The engine will return a JSON with the score.</p><p>Simply send a query by making a HTTP request or through the <code>EngineClient</code> of an SDK.</p><p>With the deployed engine running, open another terminal and run the following <code>curl</code> command or use SDK to send the query:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-f48dd0c1-9741-4cbc-a780-b5b28ec9f2c0">REST API</a></li> <li data-lang="python"><a href="#tab-aaad2635-f7c6-4fbe-b0e1-2d82c1472989">Python SDK</a></li> <li data-lang="php"><a href="#tab-76651280-8d44-47d5-93c7-3cd6c0f3f030">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-80eda421-c608-46cb-ba98-5f7149c1ae3d">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-264a4205-8878-4b66-b8c6-e6506adcace7">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-f48dd0c1-9741-4cbc-a780-b5b28ec9f2c0"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -384,7 +384,7 @@
   "browser": "Firefox" }'</span> <span class="se">\</span>
 http://localhost:8000/queries.json
 
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-733615f4-4521-47b3-b7a5-853f17f210d8"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-aaad2635-f7c6-4fbe-b0e1-2d82c1472989"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -397,7 +397,7 @@
   <span class="s">"referrerId"</span> <span class="p">:</span> <span class="s">"referrer10.com"</span><span class="p">,</span>
   <span class="s">"browser"</span><span class="p">:</span> <span class="s">"Firefox"</span>
 <span class="p">})</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-bf066096-08cd-4600-8cc3-91d3bda4e892"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-76651280-8d44-47d5-93c7-3cd6c0f3f030"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -426,7 +426,7 @@
 <span class="nb">print_r</span><span class="p">(</span><span class="nv">$response</span><span class="p">);</span>
 
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-8d548034-77c5-4ea3-806b-f0ead16f5431"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-80eda421-c608-46cb-ba98-5f7149c1ae3d"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -447,7 +447,7 @@
 <span class="p">)</span>
 
 <span class="nb">puts</span> <span class="n">response</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-010d0755-9146-4844-987f-ddc3ad773896"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-264a4205-8878-4b66-b8c6-e6506adcace7"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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diff --git a/templates/productranking/quickstart/index.html b/templates/productranking/quickstart/index.html
index 7172af0..1d498ac 100644
--- a/templates/productranking/quickstart/index.html
+++ b/templates/productranking/quickstart/index.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html><head><title>Quick Start - Product Ranking Engine Template</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Quick Start - Product Ranking Engine Template"/><link rel="canonical" href="https://predictionio.apache.org/templates/productranking/quickstart/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script src="//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script><script src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: true });}catch(e){}</script></head><body><div id="global"><header><div class="container" id="header-wrapper"><div class="row"><div class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a href="#"></a><a href="http://predictionio.apache.org/"><img alt="Apache PredictionIO" id="logo" src="/images/logos/logo-ee2b9bb3.png"/></a><span>®</span></div><div id="menu-wrapper"><div id="pill-wrapper"><a class="pill left" href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" href="//github.com/apache/predictionio/">OPEN SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md hidden-lg" src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Quick Start - Product Ranking Engine Template</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="page-title"><h1>Quick Start - Product Ranking Engine Template</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#usage">Usage</a> </li> <li> <a href="#1-install-and-run-predictionio">1. Install and Run PredictionIO</a> </li> <li> <a href="#2-create-a-new-engine-from-an-engine-template">2. Create a new Engine from an Engine Template</a> </li> <li> <a href="#3-generate-an-app-id-and-access-key">3. Generate an App ID and Access Key</a> </li> <li> <a href="#4-collecting-data">4. Collecting Data</a> </li> <li> <a href="#5-deploy-the-engine-as-a-service">5. Deploy the Engine as a Service</a> </li> <li> <a href="#6-use-the-engine">6. Use the Engine</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/templates/productranking/quickstart.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="page-title"><h1>Quick Start - Product Ranking Engine Template</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>This engine template sorts a list of products for a user based on his/her preference. This is ideal for personalizing the display order of product page, catalog, or menu items if you have large number of options. It creates engagement and early conversion by placing products that a user prefers on the top.</p><h2 id='usage' class='header-anchors'>Usage</h2><h3 id='event-data-requirements' class='header-anchors'>Event Data Requirements</h3><p>By default, this template takes the following data from Event Server as Training Data:</p> <ul> <li>user <em>$set</em> events</li> <li>item <em>$set</em> events</li> <li>Users&#39; <em>view</em> item events</li> </ul> <div class="alert-message info"><p>This template can easily be customized to consider more user events such as <em>buy</em>, <em>rate</em> and <em>like</em>.</p></div><h3 id='input-query' class='header-anchors'>Input Query</h3> <ul> <li>UserID</li> <li>List of ItemIDs, which are the products to be ranked</li> </ul> <h3 id='output-predictedresult' class='header-anchors'>Output PredictedResult</h3> <ul> <li>a ranked list of recommended itemIDs</li> </ul> <h2 id='1.-install-and-run-predictionio' class='header-anchors'>1. Install and Run PredictionIO</h2> <p>First you need to <a href="/install">install PredictionIO 0.13.0</a> (if you haven&#39;t done it).</p><p>Let&#39;s say you have installed PredictionIO at <code>/home/yourname/PredictionIO/</code>. For convenience, add PredictionIO&#39;s binary command path to your <code>PATH</code>, i.e. <code>/home/yourname/PredictionIO/bin</code>:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nv">PATH</span><span class="o">=</span><span class="nv">$PATH</span>:/home/yourname/PredictionIO/bin; <span class="nb">export </span>PATH
+<!DOCTYPE html><html><head><title>Quick Start - Product Ranking Engine Template</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Quick Start - Product Ranking Engine Template"/><link rel="canonical" href="https://predictionio.apache.org/templates/productranking/quickstart/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script 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id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Quick Start - Product Ranking Engine Template</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="page-title"><h1>Quick Start - Product Ranking Engine Template</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#usage">Usage</a> </li> <li> <a href="#1-install-and-run-predictionio">1. Install and Run PredictionIO</a> </li> <li> <a href="#2-create-a-new-engine-from-an-engine-template">2. Create a new Engine from an Engine Template</a> </li> <li> <a href="#3-generate-an-app-id-and-access-key">3. Generate an App ID and Access Key</a> </li> <li> <a href="#4-collecting-data">4. Collecting Data</a> </li> <li> <a href="#5-deploy-the-engine-as-a-service">5. Deploy the Engine as a Service</a> </li> <li> <a href="#6-use-the-engine">6. Use the Engine</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/templates/productranking/quickstart.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="page-title"><h1>Quick Start - Product Ranking Engine Template</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>This engine template sorts a list of products for a user based on his/her preference. This is ideal for personalizing the display order of product page, catalog, or menu items if you have large number of options. It creates engagement and early conversion by placing products that a user prefers on the top.</p><h2 id='usage' class='header-anchors'>Usage</h2><h3 id='event-data-requirements' class='header-anchors'>Event Data Requirements</h3><p>By default, this template takes the following data from Event Server as Training Data:</p> <ul> <li>user <em>$set</em> events</li> <li>item <em>$set</em> events</li> <li>Users&#39; <em>view</em> item events</li> </ul> <div class="alert-message info"><p>This template can easily be customized to consider more user events such as <em>buy</em>, <em>rate</em> and <em>like</em>.</p></div><h3 id='input-query' class='header-anchors'>Input Query</h3> <ul> <li>UserID</li> <li>List of ItemIDs, which are the products to be ranked</li> </ul> <h3 id='output-predictedresult' class='header-anchors'>Output PredictedResult</h3> <ul> <li>a ranked list of recommended itemIDs</li> </ul> <h2 id='1.-install-and-run-predictionio' class='header-anchors'>1. Install and Run PredictionIO</h2> <p>First you need to <a href="/install">install PredictionIO 0.14.0</a> (if you haven&#39;t done it).</p><p>Let&#39;s say you have installed PredictionIO at <code>/home/yourname/PredictionIO/</code>. For convenience, add PredictionIO&#39;s binary command path to your <code>PATH</code>, i.e. <code>/home/yourname/PredictionIO/bin</code>:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nv">PATH</span><span class="o">=</span><span class="nv">$PATH</span>:/home/yourname/PredictionIO/bin; <span class="nb">export </span>PATH
 </pre></td></tr></tbody></table> </div> <div class="alert-message note"><p>If you launched <strong>PredictionIO AWS instance</strong>, the path is located at <code>/opt/PredictionIO/bin</code>.</p></div><p>Once you have completed the installation process, please make sure all the components (PredictionIO Event Server, Elasticsearch, and HBase) are up and running.</p><div class="alert-message note"><p>If you launched <strong>PredictionIO AWS instance</strong>, you can skip <code>pio-start-all</code>. All components should have been started automatically.</p></div><p>If you are using PostgreSQL or MySQL, run the following to start PredictionIO Event Server:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio eventserver &amp;
 </pre></td></tr></tbody></table> </div> <p>If instead you are running HBase and Elasticsearch, run the following to start all PredictionIO Event Server, HBase, and Elasticsearch:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio-start-all
 </pre></td></tr></tbody></table> </div> <p>You can check the status by running:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio status
@@ -32,7 +32,7 @@
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>               MyApp1 |    1 | 3mZWDzci2D5YsqAnqNnXH9SB6Rg3dsTBs8iHkK6X2i54IQsIZI1eEeQQyMfs7b3F | <span class="o">(</span>all<span class="o">)</span>
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>               MyApp2 |    2 | io5lz6Eg4m3Xe4JZTBFE13GMAf1dhFl6ZteuJfrO84XpdOz9wRCrDU44EUaYuXq5 | <span class="o">(</span>all<span class="o">)</span>
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span> Finished listing 2 app<span class="o">(</span>s<span class="o">)</span>.
-</pre></td></tr></tbody></table> </div> <p><a href="#"></a></p> <h2 id='4.-collecting-data' class='header-anchors'>4. Collecting Data</h2><p>Next, let&#39;s collect some training data for the app of this Engine. By default, the Product Ranking Engine Template supports 2 types of entities: <strong>user</strong> and <strong>item</strong>, and event <strong>view</strong>. A user can view an item. This template requires &#39;$set&#39; user event, &#39;$set&#39; item event and user-view-item events.</p> <p>You can send these events to PredictionIO Event Server in real-time easily by making a HTTP request or through the provided SDK. Please see <a href="/appintegration/">App Integration Overview</a> for more details how to integrate your app with SDK.</p><p>Let&#39;s try sending events to EventServer with the following <code>curl</code> commands (The corresponding SDK code is showed in other tabs).</p><p>Replace <code>&lt;ACCCESS_KEY&gt;</code> by the Access Key generated in above steps. Note that <code>localhost:7070</code> is the default URL of the Event Server.</p><p>For convenience, set your access key to the shell variable, run:</p><p><code>$ ACCESS_KEY=&lt;ACCESS_KEY&gt;</code></p> <p><a href="#"></a></p> <p>For example, when a new user with id &quot;u0&quot; is created in your app on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send a <code>$set</code> event for this user. To send this event, run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-c43ad9af-ae8a-4c01-8d09-9f2ece2fb3be">REST API</a></li> <li data-lang="python"><a href="#tab-36a4fbbc-f88a-4257-8ff9-2b5be4f97cf8">Python SDK</a></li> <li data-lang="php"><a href="#tab-c1e65de8-c880-479c-95eb-29f942343bf9">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-43516873-f184-45b2-85f4-42d76859d047">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-9bbda23b-71cf-48f7-a520-05bcf0ee0d6e">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-c43ad9af-ae8a-4c01-8d09-9f2ece2fb3be"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p><a href="#"></a></p> <h2 id='4.-collecting-data' class='header-anchors'>4. Collecting Data</h2><p>Next, let&#39;s collect some training data for the app of this Engine. By default, the Product Ranking Engine Template supports 2 types of entities: <strong>user</strong> and <strong>item</strong>, and event <strong>view</strong>. A user can view an item. This template requires &#39;$set&#39; user event, &#39;$set&#39; item event and user-view-item events.</p> <p>You can send these events to PredictionIO Event Server in real-time easily by making a HTTP request or through the provided SDK. Please see <a href="/appintegration/">App Integration Overview</a> for more details how to integrate your app with SDK.</p><p>Let&#39;s try sending events to EventServer with the following <code>curl</code> commands (The corresponding SDK code is showed in other tabs).</p><p>Replace <code>&lt;ACCCESS_KEY&gt;</code> by the Access Key generated in above steps. Note that <code>localhost:7070</code> is the default URL of the Event Server.</p><p>For convenience, set your access key to the shell variable, run:</p><p><code>$ ACCESS_KEY=&lt;ACCESS_KEY&gt;</code></p> <p><a href="#"></a></p> <p>For example, when a new user with id &quot;u0&quot; is created in your app on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send a <code>$set</code> event for this user. To send this event, run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-aa5086df-ddb7-47a3-bb97-85788b66397d">REST API</a></li> <li data-lang="python"><a href="#tab-f227a2d7-986d-4f99-ac22-e339d36b7385">Python SDK</a></li> <li data-lang="php"><a href="#tab-b9b6a99a-8133-46a7-8848-3020b062bc8e">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-2939988f-b43e-4c1b-ac38-e0644f4ea002">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-4221d873-dd36-4e6d-8751-eb722f3d5612">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-aa5086df-ddb7-47a3-bb97-85788b66397d"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -47,7 +47,7 @@
   "entityId" : "u0",
   "eventTime" : "2014-11-02T09:39:45.618-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-36a4fbbc-f88a-4257-8ff9-2b5be4f97cf8"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-f227a2d7-986d-4f99-ac22-e339d36b7385"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -78,7 +78,7 @@
   <span class="n">entity_type</span><span class="o">=</span><span class="s">"user"</span><span class="p">,</span>
   <span class="n">entity_id</span><span class="o">=&lt;</span><span class="n">USER_ID</span><span class="o">&gt;</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-c1e65de8-c880-479c-95eb-29f942343bf9"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-b9b6a99a-8133-46a7-8848-3020b062bc8e"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -103,7 +103,7 @@
   <span class="s1">'entityId'</span> <span class="o">=&gt;</span> <span class="o">&lt;</span><span class="nx">USER</span> <span class="nx">ID</span><span class="o">&gt;</span>
 <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-43516873-f184-45b2-85f4-42d76859d047"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-2939988f-b43e-4c1b-ac38-e0644f4ea002"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -120,7 +120,7 @@
   <span class="s1">'user'</span><span class="p">,</span>
   <span class="o">&lt;</span><span class="no">USER</span> <span class="no">ID</span><span class="o">&gt;</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-9bbda23b-71cf-48f7-a520-05bcf0ee0d6e"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-4221d873-dd36-4e6d-8751-eb722f3d5612"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -145,7 +145,7 @@
   <span class="o">.</span><span class="na">entityType</span><span class="o">(</span><span class="s">"user"</span><span class="o">)</span>
   <span class="o">.</span><span class="na">entityId</span><span class="o">(&lt;</span><span class="n">USER_ID</span><span class="o">&gt;);</span>
 <span class="n">client</span><span class="o">.</span><span class="na">createEvent</span><span class="o">(</span><span class="n">userEvent</span><span class="o">);</span>
-</pre></td> </tr></tbody></table> </div> </div> </div> <p>When a new item &quot;i0&quot; is created in your app on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send a <code>$set</code> event for the item. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-acfd2af6-83db-477a-ad98-6f281cb62d85">REST API</a></li> <li data-lang="python"><a href="#tab-de3aa1ac-e8ca-429a-9f07-f0a3c537718f">Python SDK</a></li> <li data-lang="php"><a href="#tab-a52520ae-b860-41a4-a55b-b4cecbc3e370">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-17e99aca-9276-432d-bfdb-6c35f4b10a86">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-0c0b2802-7c7e-4b1d-9a50-cc1e148dab5a">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-acfd2af6-83db-477a-ad98-6f281cb62d85"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> </div> <p>When a new item &quot;i0&quot; is created in your app on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send a <code>$set</code> event for the item. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-913423f8-0282-4e00-b4e2-b9fe9e9719db">REST API</a></li> <li data-lang="python"><a href="#tab-3981cab7-3517-48b9-ba6a-ff93a37bb430">Python SDK</a></li> <li data-lang="php"><a href="#tab-fb877e00-759a-4127-8514-733685653d36">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-92cb7966-5252-450f-ab8d-f566db8de19b">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-e32ab7b9-7c52-4dde-befa-a8bece340b11">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-913423f8-0282-4e00-b4e2-b9fe9e9719db"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -160,7 +160,7 @@
   "entityId" : "i0",
   "eventTime" : "2014-11-02T09:39:45.618-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-de3aa1ac-e8ca-429a-9f07-f0a3c537718f"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-3981cab7-3517-48b9-ba6a-ff93a37bb430"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -173,7 +173,7 @@
   <span class="n">entity_type</span><span class="o">=</span><span class="s">"item"</span><span class="p">,</span>
   <span class="n">entity_id</span><span class="o">=&lt;</span><span class="n">ITEM_ID</span><span class="o">&gt;</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-a52520ae-b860-41a4-a55b-b4cecbc3e370"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-fb877e00-759a-4127-8514-733685653d36"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
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@@ -190,7 +190,7 @@
 <span class="p">));</span>
 
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-17e99aca-9276-432d-bfdb-6c35f4b10a86"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-92cb7966-5252-450f-ab8d-f566db8de19b"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -203,7 +203,7 @@
   <span class="o">&lt;</span><span class="no">ITEM</span> <span class="no">ID</span><span class="o">&gt;</span>
 <span class="p">)</span>
 
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-0c0b2802-7c7e-4b1d-9a50-cc1e148dab5a"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-e32ab7b9-7c52-4dde-befa-a8bece340b11"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -214,7 +214,7 @@
   <span class="o">.</span><span class="na">entityType</span><span class="o">(</span><span class="s">"item"</span><span class="o">)</span>
   <span class="o">.</span><span class="na">entityId</span><span class="o">(&lt;</span><span class="n">ITEM_ID</span><span class="o">&gt;);</span>
 <span class="n">client</span><span class="o">.</span><span class="na">createEvent</span><span class="o">(</span><span class="n">itemEvent</span><span class="o">)</span>
-</pre></td> </tr></tbody></table> </div> </div> </div> <p>When the user &quot;u0&quot; view item &quot;i0&quot; on time <code>2014-11-10T12:34:56.123-08:00</code> (current time will be used if eventTime is not specified), you can send a view event. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-349eb598-5496-4e0b-937c-3b79a0d54692">REST API</a></li> <li data-lang="python"><a href="#tab-a5a8440a-de7e-4b1c-ba4b-0d3b5e8264ef">Python SDK</a></li> <li data-lang="php"><a href="#tab-a5eae269-36a1-4b01-b8aa-687428492daa">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-5406a66d-a50a-4339-9342-501caa99b6df">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-672c5e9e-8836-4add-89c0-6dc546a91067">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-349eb598-5496-4e0b-937c-3b79a0d54692"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> </div> <p>When the user &quot;u0&quot; view item &quot;i0&quot; on time <code>2014-11-10T12:34:56.123-08:00</code> (current time will be used if eventTime is not specified), you can send a view event. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-03383b01-c0fc-4ce8-a204-0e9ccabf7802">REST API</a></li> <li data-lang="python"><a href="#tab-6e5dc091-91e3-4158-8213-e0c1df75a011">Python SDK</a></li> <li data-lang="php"><a href="#tab-5ef4915c-41d7-4c86-bce9-3fcb388e1432">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-d74bee0f-37b4-4663-ad51-311996a4b186">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-be347793-e10f-4554-abdd-c69d0141a955">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-03383b01-c0fc-4ce8-a204-0e9ccabf7802"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
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@@ -233,7 +233,7 @@
   "targetEntityId" : "i0",
   "eventTime" : "2014-11-10T12:34:56.123-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-a5a8440a-de7e-4b1c-ba4b-0d3b5e8264ef"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-6e5dc091-91e3-4158-8213-e0c1df75a011"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -250,7 +250,7 @@
   <span class="n">target_entity_type</span><span class="o">=</span><span class="s">"item"</span><span class="p">,</span>
   <span class="n">target_entity_id</span><span class="o">=&lt;</span><span class="n">ITEM</span> <span class="n">ID</span><span class="o">&gt;</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-a5eae269-36a1-4b01-b8aa-687428492daa"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-5ef4915c-41d7-4c86-bce9-3fcb388e1432"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -269,7 +269,7 @@
    <span class="s1">'targetEntityId'</span> <span class="o">=&gt;</span> <span class="o">&lt;</span><span class="nx">ITEM</span> <span class="nx">ID</span><span class="o">&gt;</span>
 <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-5406a66d-a50a-4339-9342-501caa99b6df"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-d74bee0f-37b4-4663-ad51-311996a4b186"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -286,7 +286,7 @@
     <span class="s1">'targetEntityId'</span> <span class="o">=&gt;</span> <span class="o">&lt;</span><span class="no">ITEM</span> <span class="no">ID</span><span class="o">&gt;</span>
   <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-672c5e9e-8836-4add-89c0-6dc546a91067"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-be347793-e10f-4554-abdd-c69d0141a955"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -344,14 +344,14 @@
 </pre></td></tr></tbody></table> </div> <p>When the engine is deployed successfully and running, you should see a console message similar to the following:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2</pre></td><td class="code"><pre><span class="o">[</span>INFO] <span class="o">[</span>HttpListener] Bound to /0.0.0.0:8000
 <span class="o">[</span>INFO] <span class="o">[</span>MasterActor] Bind successful. Ready to serve.
-</pre></td></tr></tbody></table> </div> <p>Do not kill the deployed engine process.</p><p>By default, the deployed engine binds to <a href="http://localhost:8000"><a href="http://localhost:8000">http://localhost:8000</a></a>. You can visit that page in your web browser to check its status.</p><p><img alt="Engine Status" src="/images/engine-server-3246414b.png"/></p></p><h2 id='6.-use-the-engine' class='header-anchors'>6. Use the Engine</h2><p>Now, You can retrieve predicted results. To rank items with IDs &quot;i1&quot;, &quot;i3&quot;, &quot;i10&quot;, &quot;i2&quot;, &quot;i5&quot;, &quot;i31&quot;, &quot;i9&quot; for user &quot;u2&quot;. You send this JSON <code>{ &quot;user&quot;: &quot;u2&quot;, &quot;items&quot;: [&quot;i1&quot;, &quot;i3&quot;, &quot;i10&quot;, &quot;i2&quot;, &quot;i5&quot;, &quot;i31&quot;, &quot;i9&quot;] }</code> to the deployed engine and it will return a JSON of the ranked items. Simply send a query by making a HTTP request or through the <code>EngineClient</code> of an SDK.</p><p>With the deployed engine running, open another terminal and run the following <code>curl</code> command or use SDK to send the query:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-e6aee5e5-6dd7-456b-b334-35dbf79a49d2">REST API</a></li> <li data-lang="python"><a href="#tab-f4b5c051-9dd3-47f9-afbf-2daec6aa1159">Python SDK</a></li> <li data-lang="php"><a href="#tab-85c18bef-efd4-47e3-aa6d-d9bb4118f802">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-91565d26-7541-4bf1-9f17-a0909d7a3f00">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-b67cdb54-2015-4ce8-be2c-9d97d6029c5f">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-e6aee5e5-6dd7-456b-b334-35dbf79a49d2"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p>Do not kill the deployed engine process.</p><p>By default, the deployed engine binds to <a href="http://localhost:8000"><a href="http://localhost:8000">http://localhost:8000</a></a>. You can visit that page in your web browser to check its status.</p><p><img alt="Engine Status" src="/images/engine-server-3246414b.png"/></p></p><h2 id='6.-use-the-engine' class='header-anchors'>6. Use the Engine</h2><p>Now, You can retrieve predicted results. To rank items with IDs &quot;i1&quot;, &quot;i3&quot;, &quot;i10&quot;, &quot;i2&quot;, &quot;i5&quot;, &quot;i31&quot;, &quot;i9&quot; for user &quot;u2&quot;. You send this JSON <code>{ &quot;user&quot;: &quot;u2&quot;, &quot;items&quot;: [&quot;i1&quot;, &quot;i3&quot;, &quot;i10&quot;, &quot;i2&quot;, &quot;i5&quot;, &quot;i31&quot;, &quot;i9&quot;] }</code> to the deployed engine and it will return a JSON of the ranked items. Simply send a query by making a HTTP request or through the <code>EngineClient</code> of an SDK.</p><p>With the deployed engine running, open another terminal and run the following <code>curl</code> command or use SDK to send the query:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-22105fe3-6e35-431b-b29b-1a45033142c1">REST API</a></li> <li data-lang="python"><a href="#tab-2f0e04d8-61e1-46d3-ae3d-4a5981ce4ed9">Python SDK</a></li> <li data-lang="php"><a href="#tab-fd2d225c-6968-479c-b434-42739e72a8b4">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-13bdeed9-28de-48f0-a5c6-b3425560f8b9">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-3bce032a-54de-4921-8308-4ad0af6ea16f">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-22105fe3-6e35-431b-b29b-1a45033142c1"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4</pre></td> <td class="code"><pre><span class="gp">$ </span>curl -H <span class="s2">"Content-Type: application/json"</span> <span class="se">\</span>
 -d <span class="s1">'{ "user": "u2", "items": ["i1", "i3", "i10", "i2", "i5", "i31", "i9"]}'</span> <span class="se">\</span>
 http://localhost:8000/queries.json
 
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-f4b5c051-9dd3-47f9-afbf-2daec6aa1159"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-2f0e04d8-61e1-46d3-ae3d-4a5981ce4ed9"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -362,7 +362,7 @@
   <span class="s">"user"</span><span class="p">:</span> <span class="s">"u2"</span><span class="p">,</span>
   <span class="s">"items"</span><span class="p">:</span> <span class="p">[</span><span class="s">"i1"</span><span class="p">,</span> <span class="s">"i3"</span><span class="p">,</span> <span class="s">"i10"</span><span class="p">,</span> <span class="s">"i2"</span><span class="p">,</span> <span class="s">"i5"</span><span class="p">,</span> <span class="s">"i31"</span><span class="p">,</span> <span class="s">"i9"</span><span class="p">]</span>
 <span class="p">})</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-85c18bef-efd4-47e3-aa6d-d9bb4118f802"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-fd2d225c-6968-479c-b434-42739e72a8b4"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -385,7 +385,7 @@
 <span class="nb">print_r</span><span class="p">(</span><span class="nv">$response</span><span class="p">);</span>
 
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-91565d26-7541-4bf1-9f17-a0909d7a3f00"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-13bdeed9-28de-48f0-a5c6-b3425560f8b9"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -402,7 +402,7 @@
   <span class="s1">'items'</span> <span class="o">=&gt;</span> <span class="p">[</span><span class="s1">'i1'</span><span class="p">,</span> <span class="s1">'i3'</span><span class="p">,</span> <span class="s1">'i10'</span><span class="p">,</span> <span class="s1">'i2'</span><span class="p">,</span> <span class="s1">'i5'</span><span class="p">,</span> <span class="s1">'i31'</span><span class="p">,</span> <span class="s1">'i9'</span><span class="p">])</span>
 
 <span class="nb">puts</span> <span class="n">response</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-b67cdb54-2015-4ce8-be2c-9d97d6029c5f"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-3bce032a-54de-4921-8308-4ad0af6ea16f"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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 4
diff --git a/templates/recommendation/quickstart/index.html b/templates/recommendation/quickstart/index.html
index 26b4951..d4093d0 100644
--- a/templates/recommendation/quickstart/index.html
+++ b/templates/recommendation/quickstart/index.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html><head><title>Quick Start - Recommendation Engine Template</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Quick Start - Recommendation Engine Template"/><link rel="canonical" href="https://predictionio.apache.org/templates/recommendation/quickstart/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script src="//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script><script src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: true });}catch(e){}</script></head><body><div id="global"><header><div class="container" id="header-wrapper"><div class="row"><div class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a href="#"></a><a href="http://predictionio.apache.org/"><img alt="Apache PredictionIO" id="logo" src="/images/logos/logo-ee2b9bb3.png"/></a><span>®</span></div><div id="menu-wrapper"><div id="pill-wrapper"><a class="pill left" href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" href="//github.com/apache/predictionio/">OPEN SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md hidden-lg" src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Quick Start - Recommendation Engine Template</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final active" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">PredictionIO® Official Templates</a><span class="spacer">&gt;</span></li><li><a href="#">Recommendation</a><span class="spacer">&gt;</span></li><li><span class="last">Quick Start</span></li></ul></div><div id="page-title"><h1>Quick Start - Recommendation Engine Template</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#usage">Usage</a> </li> <li> <a href="#1-install-and-run-predictionio">1. Install and Run PredictionIO</a> </li> <li> <a href="#2-create-a-new-engine-from-an-engine-template">2. Create a new Engine from an Engine Template</a> </li> <li> <a href="#3-generate-an-app-id-and-access-key">3. Generate an App ID and Access Key</a> </li> <li> <a href="#4-collecting-data">4. Collecting Data</a> </li> <li> <a href="#5-deploy-the-engine-as-a-service">5. Deploy the Engine as a Service</a> </li> <li> <a href="#6-use-the-engine">6. Use the Engine</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/templates/recommendation/quickstart.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">PredictionIO® Official Templates</a><span class="spacer">&gt;</span></li><li><a href="#">Recommendation</a><span class="spacer">&gt;</span></li><li><span class="last">Quick Start</span></li></ul></div><div id="page-title"><h1>Quick Start - Recommendation Engine Template</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>This Recommendation Engine Template has integrated <strong>Apache Spark MLlib</strong>&#39;s Collaborative Filtering algorithm by default. You can customize it easily to fit your specific needs.</p><p>We are going to show you how to create your own recommendation engine for production use based on this template.</p><h2 id='usage' class='header-anchors'>Usage</h2><h3 id='event-data-requirements' class='header-anchors'>Event Data Requirements</h3><p>By default, the template requires the following events to be collected:</p> <ul> <li>user &#39;rate&#39; item events</li> <li>user &#39;buy&#39; item events</li> </ul> <div class="alert-message note"><p>You can customize this engine to use other events.</p></div><h3 id='input-query' class='header-anchors'>Input Query</h3> <ul> <li>user ID</li> <li>number of recommended items</li> </ul> <h3 id='output-predictedresult' class='header-anchors'>Output PredictedResult</h3> <ul> <li>a ranked list of recommended itemIDs</li> </ul> <h2 id='1.-install-and-run-predictionio' class='header-anchors'>1. Install and Run PredictionIO</h2> <p>First you need to <a href="/install">install PredictionIO 0.13.0</a> (if you haven&#39;t done it).</p><p>Let&#39;s say you have installed PredictionIO at <code>/home/yourname/PredictionIO/</code>. For convenience, add PredictionIO&#39;s binary command path to your <code>PATH</code>, i.e. <code>/home/yourname/PredictionIO/bin</code>:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nv">PATH</span><span class="o">=</span><span class="nv">$PATH</span>:/home/yourname/PredictionIO/bin; <span class="nb">export </span>PATH
+<!DOCTYPE html><html><head><title>Quick Start - Recommendation Engine Template</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Quick Start - Recommendation Engine Template"/><link rel="canonical" href="https://predictionio.apache.org/templates/recommendation/quickstart/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script 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id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Quick Start - Recommendation Engine Template</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final active" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">PredictionIO® Official Templates</a><span class="spacer">&gt;</span></li><li><a href="#">Recommendation</a><span class="spacer">&gt;</span></li><li><span class="last">Quick Start</span></li></ul></div><div id="page-title"><h1>Quick Start - Recommendation Engine Template</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#usage">Usage</a> </li> <li> <a href="#1-install-and-run-predictionio">1. Install and Run PredictionIO</a> </li> <li> <a href="#2-create-a-new-engine-from-an-engine-template">2. Create a new Engine from an Engine Template</a> </li> <li> <a href="#3-generate-an-app-id-and-access-key">3. Generate an App ID and Access Key</a> </li> <li> <a href="#4-collecting-data">4. Collecting Data</a> </li> <li> <a href="#5-deploy-the-engine-as-a-service">5. Deploy the Engine as a Service</a> </li> <li> <a href="#6-use-the-engine">6. Use the Engine</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/templates/recommendation/quickstart.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">PredictionIO® Official Templates</a><span class="spacer">&gt;</span></li><li><a href="#">Recommendation</a><span class="spacer">&gt;</span></li><li><span class="last">Quick Start</span></li></ul></div><div id="page-title"><h1>Quick Start - Recommendation Engine Template</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>This Recommendation Engine Template has integrated <strong>Apache Spark MLlib</strong>&#39;s Collaborative Filtering algorithm by default. You can customize it easily to fit your specific needs.</p><p>We are going to show you how to create your own recommendation engine for production use based on this template.</p><h2 id='usage' class='header-anchors'>Usage</h2><h3 id='event-data-requirements' class='header-anchors'>Event Data Requirements</h3><p>By default, the template requires the following events to be collected:</p> <ul> <li>user &#39;rate&#39; item events</li> <li>user &#39;buy&#39; item events</li> </ul> <div class="alert-message note"><p>You can customize this engine to use other events.</p></div><h3 id='input-query' class='header-anchors'>Input Query</h3> <ul> <li>user ID</li> <li>number of recommended items</li> </ul> <h3 id='output-predictedresult' class='header-anchors'>Output PredictedResult</h3> <ul> <li>a ranked list of recommended itemIDs</li> </ul> <h2 id='1.-install-and-run-predictionio' class='header-anchors'>1. Install and Run PredictionIO</h2> <p>First you need to <a href="/install">install PredictionIO 0.14.0</a> (if you haven&#39;t done it).</p><p>Let&#39;s say you have installed PredictionIO at <code>/home/yourname/PredictionIO/</code>. For convenience, add PredictionIO&#39;s binary command path to your <code>PATH</code>, i.e. <code>/home/yourname/PredictionIO/bin</code>:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nv">PATH</span><span class="o">=</span><span class="nv">$PATH</span>:/home/yourname/PredictionIO/bin; <span class="nb">export </span>PATH
 </pre></td></tr></tbody></table> </div> <div class="alert-message note"><p>If you launched <strong>PredictionIO AWS instance</strong>, the path is located at <code>/opt/PredictionIO/bin</code>.</p></div><p>Once you have completed the installation process, please make sure all the components (PredictionIO Event Server, Elasticsearch, and HBase) are up and running.</p><div class="alert-message note"><p>If you launched <strong>PredictionIO AWS instance</strong>, you can skip <code>pio-start-all</code>. All components should have been started automatically.</p></div><p>If you are using PostgreSQL or MySQL, run the following to start PredictionIO Event Server:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio eventserver &amp;
 </pre></td></tr></tbody></table> </div> <p>If instead you are running HBase and Elasticsearch, run the following to start all PredictionIO Event Server, HBase, and Elasticsearch:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio-start-all
 </pre></td></tr></tbody></table> </div> <p>You can check the status by running:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio status
@@ -32,7 +32,7 @@
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>               MyApp1 |    1 | 3mZWDzci2D5YsqAnqNnXH9SB6Rg3dsTBs8iHkK6X2i54IQsIZI1eEeQQyMfs7b3F | <span class="o">(</span>all<span class="o">)</span>
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>               MyApp2 |    2 | io5lz6Eg4m3Xe4JZTBFE13GMAf1dhFl6ZteuJfrO84XpdOz9wRCrDU44EUaYuXq5 | <span class="o">(</span>all<span class="o">)</span>
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span> Finished listing 2 app<span class="o">(</span>s<span class="o">)</span>.
-</pre></td></tr></tbody></table> </div> <p><a href="#"></a></p> <h2 id='4.-collecting-data' class='header-anchors'>4. Collecting Data</h2><p>Next, let&#39;s collect some training data. By default, the Recommendation Engine Template supports 2 types of events: <strong>rate</strong> and <strong>buy</strong>. A user can give a rating score to an item or buy an item. This template requires user-view-item and user-buy-item events.</p><div class="alert-message info"><p>This template can easily be customized to consider more user events such as <em>like</em>, <em>dislike</em>, etc.</p></div> <p>You can send these events to PredictionIO Event Server in real-time easily by making a HTTP request or through the provided SDK. Please see <a href="/appintegration/">App Integration Overview</a> for more details how to integrate your app with SDK.</p><p>Let&#39;s try sending events to EventServer with the following <code>curl</code> commands (The corresponding SDK code is showed in other tabs).</p><p>Replace <code>&lt;ACCCESS_KEY&gt;</code> by the Access Key generated in above steps. Note that <code>localhost:7070</code> is the default URL of the Event Server.</p><p>For convenience, set your access key to the shell variable, run:</p><p><code>$ ACCESS_KEY=&lt;ACCESS_KEY&gt;</code></p> <p><a href="#"></a></p> <h3 id='example-<strong>rate</strong>-event' class='header-anchors' >Example <strong>rate</strong> event</h3><p>A user (ID &quot;u0&quot;) gives an item (ID &quot;i0&quot;) a rating of 5 at <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified)</p><p>Run the following <code>curl</code> command to send the <code>rate</code> event:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-f21fc337-1328-46ae-872b-c41678554807">REST API</a></li> <li data-lang="python"><a href="#tab-ac6c1ed0-128b-4514-95bc-b0f327cf962b">Python SDK</a></li> <li data-lang="php"><a href="#tab-ab101560-d801-40d9-997f-fc9c5b39c4ae">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-a6ba3e06-beb2-4b73-9a0c-b79f5a0165c1">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-120076ca-557b-44e2-a6fd-98863da38b7e">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-f21fc337-1328-46ae-872b-c41678554807"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p><a href="#"></a></p> <h2 id='4.-collecting-data' class='header-anchors'>4. Collecting Data</h2><p>Next, let&#39;s collect some training data. By default, the Recommendation Engine Template supports 2 types of events: <strong>rate</strong> and <strong>buy</strong>. A user can give a rating score to an item or buy an item. This template requires user-view-item and user-buy-item events.</p><div class="alert-message info"><p>This template can easily be customized to consider more user events such as <em>like</em>, <em>dislike</em>, etc.</p></div> <p>You can send these events to PredictionIO Event Server in real-time easily by making a HTTP request or through the provided SDK. Please see <a href="/appintegration/">App Integration Overview</a> for more details how to integrate your app with SDK.</p><p>Let&#39;s try sending events to EventServer with the following <code>curl</code> commands (The corresponding SDK code is showed in other tabs).</p><p>Replace <code>&lt;ACCCESS_KEY&gt;</code> by the Access Key generated in above steps. Note that <code>localhost:7070</code> is the default URL of the Event Server.</p><p>For convenience, set your access key to the shell variable, run:</p><p><code>$ ACCESS_KEY=&lt;ACCESS_KEY&gt;</code></p> <p><a href="#"></a></p> <h3 id='example-<strong>rate</strong>-event' class='header-anchors' >Example <strong>rate</strong> event</h3><p>A user (ID &quot;u0&quot;) gives an item (ID &quot;i0&quot;) a rating of 5 at <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified)</p><p>Run the following <code>curl</code> command to send the <code>rate</code> event:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-bf1fe36f-cde0-4c65-87e5-56feca727818">REST API</a></li> <li data-lang="python"><a href="#tab-1e4b31b0-3093-4cc7-a84e-2f8cfb9d91d1">Python SDK</a></li> <li data-lang="php"><a href="#tab-4828e176-b5ee-4ba2-a157-39f983d17442">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-45466a81-e4f0-4469-ae69-7881e8d7a8f9">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-1c46dcb5-c9aa-484d-a9ba-8e0cffced010">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-bf1fe36f-cde0-4c65-87e5-56feca727818"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -57,7 +57,7 @@
   }
   "eventTime" : "2014-11-02T09:39:45.618-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-ac6c1ed0-128b-4514-95bc-b0f327cf962b"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-1e4b31b0-3093-4cc7-a84e-2f8cfb9d91d1"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -92,7 +92,7 @@
     <span class="n">target_entity_id</span><span class="o">=&lt;</span><span class="n">ITEM</span> <span class="n">ID</span><span class="o">&gt;</span><span class="p">,</span>
     <span class="n">properties</span><span class="o">=</span> <span class="p">{</span> <span class="s">"rating"</span> <span class="p">:</span> <span class="nb">float</span><span class="p">(</span><span class="o">&lt;</span><span class="n">RATING</span><span class="o">&gt;</span><span class="p">)</span> <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-ab101560-d801-40d9-997f-fc9c5b39c4ae"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-4828e176-b5ee-4ba2-a157-39f983d17442"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -123,7 +123,7 @@
    <span class="s1">'properties'</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span><span class="s1">'rating'</span><span class="o">=&gt;</span> <span class="o">&lt;</span><span class="nx">RATING</span><span class="o">&gt;</span><span class="p">)</span>
 <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-a6ba3e06-beb2-4b73-9a0c-b79f5a0165c1"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-45466a81-e4f0-4469-ae69-7881e8d7a8f9"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -150,7 +150,7 @@
   <span class="p">}</span>
 <span class="p">)</span>
 
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-120076ca-557b-44e2-a6fd-98863da38b7e"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-1c46dcb5-c9aa-484d-a9ba-8e0cffced010"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
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@@ -179,7 +179,7 @@
     <span class="o">.</span><span class="na">property</span><span class="o">(</span><span class="s">"rating"</span><span class="o">,</span> <span class="k">new</span> <span class="n">Float</span><span class="o">(&lt;</span><span class="n">RATING</span><span class="o">&gt;));</span>
 <span class="n">client</span><span class="o">.</span><span class="na">createEvent</span><span class="o">(</span><span class="n">rateEvent</span><span class="o">);</span>
 
-</pre></td> </tr></tbody></table> </div> </div> </div> <h3 id='example-<strong>buy</strong>-event' class='header-anchors' >Example <strong>buy</strong> event</h3><p>A user (ID &quot;u1&quot;) buys an item (ID &quot;i2&quot;) at <code>2014-11-10T12:34:56.123-08:00</code> (current time will be used if eventTime is not specified)</p><p>Run the following <code>curl</code> command to send the <code>buy</code> event:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-0f4b75b7-64a7-429d-8051-2feebb631540">REST API</a></li> <li data-lang="python"><a href="#tab-29353a73-ece1-4734-9c58-796565fe7da2">Python SDK</a></li> <li data-lang="php"><a href="#tab-8ef5a232-6170-49b6-89cc-3232de16590d">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-a1088753-63ee-46a3-b241-494f1770d366">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-4bf0a6b7-e75c-4e1e-9afe-14c6a80493b7">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-0f4b75b7-64a7-429d-8051-2feebb631540"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> </div> <h3 id='example-<strong>buy</strong>-event' class='header-anchors' >Example <strong>buy</strong> event</h3><p>A user (ID &quot;u1&quot;) buys an item (ID &quot;i2&quot;) at <code>2014-11-10T12:34:56.123-08:00</code> (current time will be used if eventTime is not specified)</p><p>Run the following <code>curl</code> command to send the <code>buy</code> event:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-089f378c-dc6c-4415-b5e8-2a11f25c9c4c">REST API</a></li> <li data-lang="python"><a href="#tab-232b2a16-6377-4353-be98-5b9e954ee772">Python SDK</a></li> <li data-lang="php"><a href="#tab-7f2178a4-9080-4649-ab62-a6e529ebff13">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-c75ae0b5-f5d9-4ade-8200-778e21764b86">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-9c576aac-5552-4e6e-8b8e-08c878aac6d6">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-089f378c-dc6c-4415-b5e8-2a11f25c9c4c"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -198,7 +198,7 @@
   "targetEntityId" : "i2",
   "eventTime" : "2014-11-10T12:34:56.123-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-29353a73-ece1-4734-9c58-796565fe7da2"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-232b2a16-6377-4353-be98-5b9e954ee772"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -213,7 +213,7 @@
     <span class="n">target_entity_type</span><span class="o">=</span><span class="s">"item"</span><span class="p">,</span>
     <span class="n">target_entity_id</span><span class="o">=&lt;</span><span class="n">ITEM</span> <span class="n">ID</span><span class="o">&gt;</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-8ef5a232-6170-49b6-89cc-3232de16590d"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-7f2178a4-9080-4649-ab62-a6e529ebff13"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -232,7 +232,7 @@
    <span class="s1">'targetEntityId'</span> <span class="o">=&gt;</span> <span class="o">&lt;</span><span class="nx">ITEM</span> <span class="nx">ID</span><span class="o">&gt;</span>
 <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-a1088753-63ee-46a3-b241-494f1770d366"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-c75ae0b5-f5d9-4ade-8200-778e21764b86"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
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@@ -249,7 +249,7 @@
     <span class="s1">'targetEntityId'</span> <span class="o">=&gt;</span> <span class="o">&lt;</span><span class="no">ITEM</span> <span class="no">ID</span><span class="o">&gt;</span>
   <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-4bf0a6b7-e75c-4e1e-9afe-14c6a80493b7"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-9c576aac-5552-4e6e-8b8e-08c878aac6d6"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -297,17 +297,17 @@
 </pre></td></tr></tbody></table> </div> <p>When the engine is deployed successfully and running, you should see a console message similar to the following:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2</pre></td><td class="code"><pre><span class="o">[</span>INFO] <span class="o">[</span>HttpListener] Bound to /0.0.0.0:8000
 <span class="o">[</span>INFO] <span class="o">[</span>MasterActor] Bind successful. Ready to serve.
-</pre></td></tr></tbody></table> </div> <p>Do not kill the deployed engine process.</p><p>By default, the deployed engine binds to <a href="http://localhost:8000"><a href="http://localhost:8000">http://localhost:8000</a></a>. You can visit that page in your web browser to check its status.</p><p><img alt="Engine Status" src="/images/engine-server-3246414b.png"/></p></p><h2 id='6.-use-the-engine' class='header-anchors'>6. Use the Engine</h2><p>Now, you can try to retrieve predicted results. To recommend 4 movies to a user whose id is 1, you send this JSON <code>{ &quot;user&quot;: &quot;1&quot;, &quot;num&quot;: 4 }</code> to the deployed engine and it will return a JSON result of the recommended movies. Simply send a query by making an HTTP request or through the <code>EngineClient</code> of an SDK.</p><p>With the deployed engine running, open another terminal and run the following <code>curl</code> command or use an SDK to send the query:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-e7a51612-0671-4800-a46b-fb9bb0c9ffe4">REST API</a></li> <li data-lang="python"><a href="#tab-c4d83531-adcb-4fc5-a04a-61bc4a0cb02a">Python SDK</a></li> <li data-lang="php"><a href="#tab-ea36a1e5-ca2f-4ca5-9549-bcc35584913a">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-00e07fea-5a7a-4651-babb-441a7be7d2a1">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-60a554a9-7d43-47d6-a6e0-0d0d0659078c">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-e7a51612-0671-4800-a46b-fb9bb0c9ffe4"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p>Do not kill the deployed engine process.</p><p>By default, the deployed engine binds to <a href="http://localhost:8000"><a href="http://localhost:8000">http://localhost:8000</a></a>. You can visit that page in your web browser to check its status.</p><p><img alt="Engine Status" src="/images/engine-server-3246414b.png"/></p></p><h2 id='6.-use-the-engine' class='header-anchors'>6. Use the Engine</h2><p>Now, you can try to retrieve predicted results. To recommend 4 movies to a user whose id is 1, you send this JSON <code>{ &quot;user&quot;: &quot;1&quot;, &quot;num&quot;: 4 }</code> to the deployed engine and it will return a JSON result of the recommended movies. Simply send a query by making an HTTP request or through the <code>EngineClient</code> of an SDK.</p><p>With the deployed engine running, open another terminal and run the following <code>curl</code> command or use an SDK to send the query:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-59b849e7-6e66-48d3-b607-63ac83b0e737">REST API</a></li> <li data-lang="python"><a href="#tab-f1a77ac3-95d6-4785-be36-f9baceb31034">Python SDK</a></li> <li data-lang="php"><a href="#tab-641e4864-d1d1-451f-b6b7-6f8608b0749e">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-55ec040b-fe76-429f-9a34-a5bf159c679d">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-9c37008b-345a-4f48-b912-5119d4b35c87">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-59b849e7-6e66-48d3-b607-63ac83b0e737"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3</pre></td> <td class="code"><pre><span class="gp">$ </span>curl -H <span class="s2">"Content-Type: application/json"</span> <span class="se">\</span>
 -d <span class="s1">'{ "user": "1", "num": 4 }'</span> http://localhost:8000/queries.json
 
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-c4d83531-adcb-4fc5-a04a-61bc4a0cb02a"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-f1a77ac3-95d6-4785-be36-f9baceb31034"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3</pre></td> <td class="code"><pre><span class="kn">import</span> <span class="nn">predictionio</span>
 <span class="n">engine_client</span> <span class="o">=</span> <span class="n">predictionio</span><span class="o">.</span><span class="n">EngineClient</span><span class="p">(</span><span class="n">url</span><span class="o">=</span><span class="s">"http://localhost:8000"</span><span class="p">)</span>
 <span class="k">print</span> <span class="n">engine_client</span><span class="o">.</span><span class="n">send_query</span><span class="p">({</span><span class="s">"user"</span><span class="p">:</span> <span class="s">"1"</span><span class="p">,</span> <span class="s">"num"</span><span class="p">:</span> <span class="mi">4</span><span class="p">})</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-ea36a1e5-ca2f-4ca5-9549-bcc35584913a"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-641e4864-d1d1-451f-b6b7-6f8608b0749e"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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 3
 4
@@ -326,7 +326,7 @@
 <span class="nb">print_r</span><span class="p">(</span><span class="nv">$response</span><span class="p">);</span>
 
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-00e07fea-5a7a-4651-babb-441a7be7d2a1"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-55ec040b-fe76-429f-9a34-a5bf159c679d"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
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@@ -339,7 +339,7 @@
 <span class="n">response</span> <span class="o">=</span> <span class="n">client</span><span class="p">.</span><span class="nf">send_query</span><span class="p">(</span><span class="s1">'user'</span> <span class="o">=&gt;</span> <span class="o">&lt;</span><span class="no">USER</span> <span class="no">ID</span><span class="o">&gt;</span><span class="p">,</span> <span class="s1">'num'</span> <span class="o">=&gt;</span> <span class="o">&lt;</span><span class="no">NUMBER</span> <span class="p">(</span><span class="n">integer</span><span class="p">)</span><span class="o">&gt;</span><span class="p">)</span>
 
 <span class="nb">puts</span> <span class="n">response</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-60a554a9-7d43-47d6-a6e0-0d0d0659078c"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-9c37008b-345a-4f48-b912-5119d4b35c87"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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diff --git a/templates/similarproduct/quickstart/index.html b/templates/similarproduct/quickstart/index.html
index 17e82f6..46d8f47 100644
--- a/templates/similarproduct/quickstart/index.html
+++ b/templates/similarproduct/quickstart/index.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html><head><title>Quick Start - Similar Product Engine Template</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Quick Start - Similar Product Engine Template"/><link rel="canonical" href="https://predictionio.apache.org/templates/similarproduct/quickstart/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script src="//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script><script src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: true });}catch(e){}</script></head><body><div id="global"><header><div class="container" id="header-wrapper"><div class="row"><div class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a href="#"></a><a href="http://predictionio.apache.org/"><img alt="Apache PredictionIO" id="logo" src="/images/logos/logo-ee2b9bb3.png"/></a><span>®</span></div><div id="menu-wrapper"><div id="pill-wrapper"><a class="pill left" href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" href="//github.com/apache/predictionio/">OPEN SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md hidden-lg" src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Quick Start - Similar Product Engine Template</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final active" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">PredictionIO® Official Templates</a><span class="spacer">&gt;</span></li><li><a href="#">Similar Product</a><span class="spacer">&gt;</span></li><li><span class="last">Quick Start</span></li></ul></div><div id="page-title"><h1>Quick Start - Similar Product Engine Template</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#usage">Usage</a> </li> <li> <a href="#1-install-and-run-predictionio">1. Install and Run PredictionIO</a> </li> <li> <a href="#2-create-a-new-engine-from-an-engine-template">2. Create a new Engine from an Engine Template</a> </li> <li> <a href="#3-generate-an-app-id-and-access-key">3. Generate an App ID and Access Key</a> </li> <li> <a href="#4-collecting-data">4. Collecting Data</a> </li> <li> <a href="#5-deploy-the-engine-as-a-service">5. Deploy the Engine as a Service</a> </li> <li> <a href="#6-use-the-engine">6. Use the Engine</a> </li> <li> <a href="#advanced-query">Advanced Query</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/templates/similarproduct/quickstart.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">PredictionIO® Official Templates</a><span class="spacer">&gt;</span></li><li><a href="#">Similar Product</a><span class="spacer">&gt;</span></li><li><span class="last">Quick Start</span></li></ul></div><div id="page-title"><h1>Quick Start - Similar Product Engine Template</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>This engine template recommends products that are &quot;similar&quot; to the input product(s). Similarity is not defined by user or item attributes but by users&#39; previous actions. By default, it uses &#39;view&#39; action such that product A and B are considered similar if most users who view A also view B. The template can be customized to support other action types such as buy, rate, like..etc.</p><p>This template is ideal for recommending products to customers based on their recent actions. Using the IDs of the recently viewed products of a customer as the <em>Query</em>, the engine will predict other products that this customer may also like.</p><p>This approach works perfectly for customers who are <strong>first-time visitors</strong> or have not signed in. Recommendations are made dynamically in <em>real-time</em> based on the most recent product preference you provide in the <em>Query</em>. You can, therefore, recommend products to visitors without knowing a long history about them.</p><p>You can also use this template to build the popular feature of Amazon: <strong>&quot;Customers Who Viewed This Item Also Viewed...&quot;</strong> quickly. Help your customers explore more products that they like, and sell more products.</p><h2 id='usage' class='header-anchors'>Usage</h2><h3 id='event-data-requirements' class='header-anchors'>Event Data Requirements</h3><p>By default, this template takes the following data from Event Server as Training Data:</p> <ul> <li>User <em>$set</em> events</li> <li>Item <em>$set</em> events with <em>categories</em> properties</li> <li>Users&#39; <em>view</em> item events</li> </ul> <div class="alert-message info"><p>This template can easily be customized to consider more user events such as <em>buy</em>, <em>rate</em> and <em>like</em>. You can offer features like &quot;Customers Who Bought This Item Also Bought....&quot;.</p></div><h3 id='input-query' class='header-anchors'>Input Query</h3> <ul> <li>List of ItemIDs, which are the targeted products</li> <li>N (number of items to be recommended)</li> <li>List of white-listed item categories (optional)</li> <li>List of white-listed ItemIds (optional)</li> <li>List of black-listed ItemIds (optional)</li> </ul> <p>The template also supports black-list and white-list. If a white-list is provided, the engine will include only those products in the recommendation. Likewise, if a black-list is provided, the engine will exclude those products in the recommendation.</p><h3 id='output-predictedresult' class='header-anchors'>Output PredictedResult</h3> <ul> <li>a ranked list of recommended itemIDs</li> </ul> <h2 id='1.-install-and-run-predictionio' class='header-anchors'>1. Install and Run PredictionIO</h2> <p>First you need to <a href="/install">install PredictionIO 0.13.0</a> (if you haven&#39;t done it).</p><p>Let&#39;s say you have installed PredictionIO at <code>/home/yourname/PredictionIO/</code>. For convenience, add PredictionIO&#39;s binary command path to your <code>PATH</code>, i.e. <code>/home/yourname/PredictionIO/bin</code>:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nv">PATH</span><span class="o">=</span><span class="nv">$PATH</span>:/home/yourname/PredictionIO/bin; <span class="nb">export </span>PATH
+<!DOCTYPE html><html><head><title>Quick Start - Similar Product Engine Template</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Quick Start - Similar Product Engine Template"/><link rel="canonical" href="https://predictionio.apache.org/templates/similarproduct/quickstart/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script 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id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Quick Start - Similar Product Engine Template</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final active" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">PredictionIO® Official Templates</a><span class="spacer">&gt;</span></li><li><a href="#">Similar Product</a><span class="spacer">&gt;</span></li><li><span class="last">Quick Start</span></li></ul></div><div id="page-title"><h1>Quick Start - Similar Product Engine Template</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#usage">Usage</a> </li> <li> <a href="#1-install-and-run-predictionio">1. Install and Run PredictionIO</a> </li> <li> <a href="#2-create-a-new-engine-from-an-engine-template">2. Create a new Engine from an Engine Template</a> </li> <li> <a href="#3-generate-an-app-id-and-access-key">3. Generate an App ID and Access Key</a> </li> <li> <a href="#4-collecting-data">4. Collecting Data</a> </li> <li> <a href="#5-deploy-the-engine-as-a-service">5. Deploy the Engine as a Service</a> </li> <li> <a href="#6-use-the-engine">6. Use the Engine</a> </li> <li> <a href="#advanced-query">Advanced Query</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/templates/similarproduct/quickstart.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a href="#">PredictionIO® Official Templates</a><span class="spacer">&gt;</span></li><li><a href="#">Similar Product</a><span class="spacer">&gt;</span></li><li><span class="last">Quick Start</span></li></ul></div><div id="page-title"><h1>Quick Start - Similar Product Engine Template</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>This engine template recommends products that are &quot;similar&quot; to the input product(s). Similarity is not defined by user or item attributes but by users&#39; previous actions. By default, it uses &#39;view&#39; action such that product A and B are considered similar if most users who view A also view B. The template can be customized to support other action types such as buy, rate, like..etc.</p><p>This template is ideal for recommending products to customers based on their recent actions. Using the IDs of the recently viewed products of a customer as the <em>Query</em>, the engine will predict other products that this customer may also like.</p><p>This approach works perfectly for customers who are <strong>first-time visitors</strong> or have not signed in. Recommendations are made dynamically in <em>real-time</em> based on the most recent product preference you provide in the <em>Query</em>. You can, therefore, recommend products to visitors without knowing a long history about them.</p><p>You can also use this template to build the popular feature of Amazon: <strong>&quot;Customers Who Viewed This Item Also Viewed...&quot;</strong> quickly. Help your customers explore more products that they like, and sell more products.</p><h2 id='usage' class='header-anchors'>Usage</h2><h3 id='event-data-requirements' class='header-anchors'>Event Data Requirements</h3><p>By default, this template takes the following data from Event Server as Training Data:</p> <ul> <li>User <em>$set</em> events</li> <li>Item <em>$set</em> events with <em>categories</em> properties</li> <li>Users&#39; <em>view</em> item events</li> </ul> <div class="alert-message info"><p>This template can easily be customized to consider more user events such as <em>buy</em>, <em>rate</em> and <em>like</em>. You can offer features like &quot;Customers Who Bought This Item Also Bought....&quot;.</p></div><h3 id='input-query' class='header-anchors'>Input Query</h3> <ul> <li>List of ItemIDs, which are the targeted products</li> <li>N (number of items to be recommended)</li> <li>List of white-listed item categories (optional)</li> <li>List of white-listed ItemIds (optional)</li> <li>List of black-listed ItemIds (optional)</li> </ul> <p>The template also supports black-list and white-list. If a white-list is provided, the engine will include only those products in the recommendation. Likewise, if a black-list is provided, the engine will exclude those products in the recommendation.</p><h3 id='output-predictedresult' class='header-anchors'>Output PredictedResult</h3> <ul> <li>a ranked list of recommended itemIDs</li> </ul> <h2 id='1.-install-and-run-predictionio' class='header-anchors'>1. Install and Run PredictionIO</h2> <p>First you need to <a href="/install">install PredictionIO 0.14.0</a> (if you haven&#39;t done it).</p><p>Let&#39;s say you have installed PredictionIO at <code>/home/yourname/PredictionIO/</code>. For convenience, add PredictionIO&#39;s binary command path to your <code>PATH</code>, i.e. <code>/home/yourname/PredictionIO/bin</code>:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nv">PATH</span><span class="o">=</span><span class="nv">$PATH</span>:/home/yourname/PredictionIO/bin; <span class="nb">export </span>PATH
 </pre></td></tr></tbody></table> </div> <div class="alert-message note"><p>If you launched <strong>PredictionIO AWS instance</strong>, the path is located at <code>/opt/PredictionIO/bin</code>.</p></div><p>Once you have completed the installation process, please make sure all the components (PredictionIO Event Server, Elasticsearch, and HBase) are up and running.</p><div class="alert-message note"><p>If you launched <strong>PredictionIO AWS instance</strong>, you can skip <code>pio-start-all</code>. All components should have been started automatically.</p></div><p>If you are using PostgreSQL or MySQL, run the following to start PredictionIO Event Server:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio eventserver &amp;
 </pre></td></tr></tbody></table> </div> <p>If instead you are running HBase and Elasticsearch, run the following to start all PredictionIO Event Server, HBase, and Elasticsearch:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio-start-all
 </pre></td></tr></tbody></table> </div> <p>You can check the status by running:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio status
@@ -32,7 +32,7 @@
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>               MyApp1 |    1 | 3mZWDzci2D5YsqAnqNnXH9SB6Rg3dsTBs8iHkK6X2i54IQsIZI1eEeQQyMfs7b3F | <span class="o">(</span>all<span class="o">)</span>
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span>               MyApp2 |    2 | io5lz6Eg4m3Xe4JZTBFE13GMAf1dhFl6ZteuJfrO84XpdOz9wRCrDU44EUaYuXq5 | <span class="o">(</span>all<span class="o">)</span>
 <span class="o">[</span>INFO] <span class="o">[</span>App<span class="nv">$]</span> Finished listing 2 app<span class="o">(</span>s<span class="o">)</span>.
-</pre></td></tr></tbody></table> </div> <p><a href="#"></a></p> <h2 id='4.-collecting-data' class='header-anchors'>4. Collecting Data</h2><p>Next, let&#39;s collect some training data for the app of this Engine. By default, the Similar Product Engine Template supports 2 types of entities: <strong>user</strong> and <strong>item</strong>, and event <strong>view</strong>. An item has the <strong>categories</strong> property, which is a list of category names (String). A user can view an item. Respectively, this template requires &#39;$set&#39; user event, &#39;$set&#39; item event, and user-view-item events.</p><div class="alert-message info"><p>This template can easily be customized to consider more user events such as <em>buy</em>, <em>rate</em> and <em>like</em>.</p></div> <p>You can send these events to PredictionIO Event Server in real-time easily by making a HTTP request or through the provided SDK. Please see <a href="/appintegration/">App Integration Overview</a> for more details how to integrate your app with SDK.</p><p>Let&#39;s try sending events to EventServer with the following <code>curl</code> commands (The corresponding SDK code is showed in other tabs).</p><p>Replace <code>&lt;ACCCESS_KEY&gt;</code> by the Access Key generated in above steps. Note that <code>localhost:7070</code> is the default URL of the Event Server.</p><p>For convenience, set your access key to the shell variable, run:</p><p><code>$ ACCESS_KEY=&lt;ACCESS_KEY&gt;</code></p> <p><a href="#"></a></p> <p>For example, when a new user with id &quot;u0&quot; is created in your app on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send a <code>$set</code> event for this user. To send this event, run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-673ab6ea-44d6-450f-b98c-ce7c0114a3da">REST API</a></li> <li data-lang="python"><a href="#tab-8aee305d-2e74-45bb-846c-f92caa7fe11a">Python SDK</a></li> <li data-lang="php"><a href="#tab-f4d9f631-b846-45ea-9772-216f17fd9d76">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-1e220d51-102e-4b83-8112-9b6e23f194b9">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-d16e4e60-ef54-47d2-aea0-69c24633713c">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-673ab6ea-44d6-450f-b98c-ce7c0114a3da"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p><a href="#"></a></p> <h2 id='4.-collecting-data' class='header-anchors'>4. Collecting Data</h2><p>Next, let&#39;s collect some training data for the app of this Engine. By default, the Similar Product Engine Template supports 2 types of entities: <strong>user</strong> and <strong>item</strong>, and event <strong>view</strong>. An item has the <strong>categories</strong> property, which is a list of category names (String). A user can view an item. Respectively, this template requires &#39;$set&#39; user event, &#39;$set&#39; item event, and user-view-item events.</p><div class="alert-message info"><p>This template can easily be customized to consider more user events such as <em>buy</em>, <em>rate</em> and <em>like</em>.</p></div> <p>You can send these events to PredictionIO Event Server in real-time easily by making a HTTP request or through the provided SDK. Please see <a href="/appintegration/">App Integration Overview</a> for more details how to integrate your app with SDK.</p><p>Let&#39;s try sending events to EventServer with the following <code>curl</code> commands (The corresponding SDK code is showed in other tabs).</p><p>Replace <code>&lt;ACCCESS_KEY&gt;</code> by the Access Key generated in above steps. Note that <code>localhost:7070</code> is the default URL of the Event Server.</p><p>For convenience, set your access key to the shell variable, run:</p><p><code>$ ACCESS_KEY=&lt;ACCESS_KEY&gt;</code></p> <p><a href="#"></a></p> <p>For example, when a new user with id &quot;u0&quot; is created in your app on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send a <code>$set</code> event for this user. To send this event, run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-2f25861b-54f3-4f27-9ad7-7ba69b6065c7">REST API</a></li> <li data-lang="python"><a href="#tab-7d86577f-c609-4995-9ba8-6684198fe481">Python SDK</a></li> <li data-lang="php"><a href="#tab-c97721ad-4c0f-4f43-9cd7-1c0b448d121c">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-fa959396-5dfc-453b-85f3-62413bfff3e9">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-697341a6-7d54-450f-8672-7276f4dfc73a">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-2f25861b-54f3-4f27-9ad7-7ba69b6065c7"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -47,7 +47,7 @@
   "entityId" : "u0",
   "eventTime" : "2014-11-02T09:39:45.618-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-8aee305d-2e74-45bb-846c-f92caa7fe11a"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-7d86577f-c609-4995-9ba8-6684198fe481"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -86,7 +86,7 @@
   <span class="n">event_time</span><span class="o">=</span><span class="n">datetime</span><span class="p">(</span>
     <span class="mi">2014</span><span class="p">,</span> <span class="mi">11</span><span class="p">,</span> <span class="mo">02</span><span class="p">,</span> <span class="mi">09</span><span class="p">,</span> <span class="mi">39</span><span class="p">,</span> <span class="mi">45</span><span class="p">,</span> <span class="mi">618000</span><span class="p">,</span> <span class="n">pytz</span><span class="o">.</span><span class="n">timezone</span><span class="p">(</span><span class="s">'US/Pacific'</span><span class="p">)</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-f4d9f631-b846-45ea-9772-216f17fd9d76"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-c97721ad-4c0f-4f43-9cd7-1c0b448d121c"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -111,7 +111,7 @@
   <span class="s1">'entityId'</span> <span class="o">=&gt;</span> <span class="o">&lt;</span><span class="nx">USER</span> <span class="nx">ID</span><span class="o">&gt;</span>
 <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-1e220d51-102e-4b83-8112-9b6e23f194b9"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-fa959396-5dfc-453b-85f3-62413bfff3e9"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -128,7 +128,7 @@
   <span class="s1">'user'</span><span class="p">,</span>
   <span class="o">&lt;</span><span class="no">USER</span> <span class="no">ID</span><span class="o">&gt;</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-d16e4e60-ef54-47d2-aea0-69c24633713c"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-697341a6-7d54-450f-8672-7276f4dfc73a"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4
@@ -153,7 +153,7 @@
   <span class="o">.</span><span class="na">entityType</span><span class="o">(</span><span class="s">"user"</span><span class="o">)</span>
   <span class="o">.</span><span class="na">entityId</span><span class="o">(&lt;</span><span class="n">USER_ID</span><span class="o">&gt;);</span>
 <span class="n">client</span><span class="o">.</span><span class="na">createEvent</span><span class="o">(</span><span class="n">userEvent</span><span class="o">);</span>
-</pre></td> </tr></tbody></table> </div> </div> </div> <p>When a new item &quot;i0&quot; is created in your app on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send a <code>$set</code> event for the item. Note that the item is set with categories properties: <code>&quot;c1&quot;</code> and <code>&quot;c2&quot;</code>. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-a533bf99-fea8-45be-8bc4-13995b533f90">REST API</a></li> <li data-lang="python"><a href="#tab-ecade7c2-569e-463a-bec0-55e340aed820">Python SDK</a></li> <li data-lang="php"><a href="#tab-b9d0e516-d5ce-413a-ba6e-b4b7a27b6160">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-c031f35e-fe35-4852-8385-ee90a574fc89">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-00926b66-102d-4717-82a0-502243990bb7">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-a533bf99-fea8-45be-8bc4-13995b533f90"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> </div> <p>When a new item &quot;i0&quot; is created in your app on time <code>2014-11-02T09:39:45.618-08:00</code> (current time will be used if eventTime is not specified), you can send a <code>$set</code> event for the item. Note that the item is set with categories properties: <code>&quot;c1&quot;</code> and <code>&quot;c2&quot;</code>. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-fc2f3864-fdd8-4717-89a1-8562105fdb7b">REST API</a></li> <li data-lang="python"><a href="#tab-05b181fe-3d22-4f3b-ab37-ef6f9b883d1f">Python SDK</a></li> <li data-lang="php"><a href="#tab-e30af0df-e821-4669-affe-ac6c11148f9e">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-91e726d5-1df1-4cc2-abce-26923f7cdfe1">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-b75b9bcf-7ad0-4b0c-adde-f1bea659a4df">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-fc2f3864-fdd8-4717-89a1-8562105fdb7b"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -174,7 +174,7 @@
   }
   "eventTime" : "2014-11-02T09:39:45.618-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-ecade7c2-569e-463a-bec0-55e340aed820"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-05b181fe-3d22-4f3b-ab37-ef6f9b883d1f"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -193,7 +193,7 @@
     <span class="s">"categories"</span> <span class="p">:</span> <span class="p">[</span><span class="s">"&lt;CATEGORY_1&gt;"</span><span class="p">,</span> <span class="s">"&lt;CATEGORY_2&gt;"</span><span class="p">]</span>
   <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-b9d0e516-d5ce-413a-ba6e-b4b7a27b6160"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-e30af0df-e821-4669-affe-ac6c11148f9e"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -214,7 +214,7 @@
 <span class="p">));</span>
 
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-c031f35e-fe35-4852-8385-ee90a574fc89"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-91e726d5-1df1-4cc2-abce-26923f7cdfe1"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -231,7 +231,7 @@
   <span class="p">}</span>
 <span class="p">)</span>
 
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-00926b66-102d-4717-82a0-502243990bb7"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-b75b9bcf-7ad0-4b0c-adde-f1bea659a4df"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -244,7 +244,7 @@
   <span class="o">.</span><span class="na">entityId</span><span class="o">(&lt;</span><span class="n">ITEM_ID</span><span class="o">&gt;)</span>
   <span class="o">.</span><span class="na">property</span><span class="o">(</span><span class="s">"categories"</span><span class="o">,</span> <span class="n">ImmutableList</span><span class="o">.</span><span class="na">of</span><span class="o">(</span><span class="s">"&lt;CATEGORY_1&gt;"</span><span class="o">,</span> <span class="s">"&lt;CATEGORY_2&gt;"</span><span class="o">));</span>
 <span class="n">client</span><span class="o">.</span><span class="na">createEvent</span><span class="o">(</span><span class="n">itemEvent</span><span class="o">)</span>
-</pre></td> </tr></tbody></table> </div> </div> </div> <p>When the user &quot;u0&quot; view item &quot;i0&quot; on time <code>2014-11-10T12:34:56.123-08:00</code> (current time will be used if eventTime is not specified), you can send a view event. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-faef25fe-f05d-4695-9749-f2344a946644">REST API</a></li> <li data-lang="python"><a href="#tab-98824c00-57fa-41da-aa19-ffa81ab99695">Python SDK</a></li> <li data-lang="php"><a href="#tab-31ad7bee-f0ed-4b1d-b7a0-b64f21dc438d">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-fae8a0e6-6809-42b6-8ed5-59ad8ee33945">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-b907b574-176f-49fc-aafc-ff6ad14fbc1c">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-faef25fe-f05d-4695-9749-f2344a946644"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> </div> <p>When the user &quot;u0&quot; view item &quot;i0&quot; on time <code>2014-11-10T12:34:56.123-08:00</code> (current time will be used if eventTime is not specified), you can send a view event. Run the following <code>curl</code> command:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-42d37512-bc07-4364-a8f4-f1cde8963941">REST API</a></li> <li data-lang="python"><a href="#tab-f6a94201-f201-4e4f-b0a1-f499da4c6626">Python SDK</a></li> <li data-lang="php"><a href="#tab-7af1f18f-af21-48e6-b631-0c7658707f76">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-3f09910c-1fe7-41e5-a381-988d6d508026">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-710eaece-5ccd-4c17-9b96-be58453a862d">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-42d37512-bc07-4364-a8f4-f1cde8963941"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -263,7 +263,7 @@
   "targetEntityId" : "i0",
   "eventTime" : "2014-11-10T12:34:56.123-08:00"
 }'</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-98824c00-57fa-41da-aa19-ffa81ab99695"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-f6a94201-f201-4e4f-b0a1-f499da4c6626"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -280,7 +280,7 @@
   <span class="n">target_entity_type</span><span class="o">=</span><span class="s">"item"</span><span class="p">,</span>
   <span class="n">target_entity_id</span><span class="o">=&lt;</span><span class="n">ITEM</span> <span class="n">ID</span><span class="o">&gt;</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-31ad7bee-f0ed-4b1d-b7a0-b64f21dc438d"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-7af1f18f-af21-48e6-b631-0c7658707f76"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -299,7 +299,7 @@
    <span class="s1">'targetEntityId'</span> <span class="o">=&gt;</span> <span class="o">&lt;</span><span class="nx">ITEM</span> <span class="nx">ID</span><span class="o">&gt;</span>
 <span class="p">));</span>
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-fae8a0e6-6809-42b6-8ed5-59ad8ee33945"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-3f09910c-1fe7-41e5-a381-988d6d508026"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -316,7 +316,7 @@
     <span class="s1">'targetEntityId'</span> <span class="o">=&gt;</span> <span class="o">&lt;</span><span class="no">ITEM</span> <span class="no">ID</span><span class="o">&gt;</span>
   <span class="p">}</span>
 <span class="p">)</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-b907b574-176f-49fc-aafc-ff6ad14fbc1c"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-710eaece-5ccd-4c17-9b96-be58453a862d"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -376,19 +376,19 @@
 </pre></td></tr></tbody></table> </div> <p>When the engine is deployed successfully and running, you should see a console message similar to the following:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2</pre></td><td class="code"><pre><span class="o">[</span>INFO] <span class="o">[</span>HttpListener] Bound to /0.0.0.0:8000
 <span class="o">[</span>INFO] <span class="o">[</span>MasterActor] Bind successful. Ready to serve.
-</pre></td></tr></tbody></table> </div> <p>Do not kill the deployed engine process.</p><p>By default, the deployed engine binds to <a href="http://localhost:8000"><a href="http://localhost:8000">http://localhost:8000</a></a>. You can visit that page in your web browser to check its status.</p><p><img alt="Engine Status" src="/images/engine-server-3246414b.png"/></p></p><h2 id='6.-use-the-engine' class='header-anchors'>6. Use the Engine</h2><p>Now, You can retrieve predicted results. To retrieve 4 items which are similar to item ID &quot;i1&quot;. You send this JSON <code>{ &quot;items&quot;: [&quot;i1&quot;], &quot;num&quot;: 4 }</code> to the deployed engine and it will return a JSON of the recommended items. Simply send a query by making a HTTP request or through the <code>EngineClient</code> of an SDK.</p><p>With the deployed engine running, open another terminal and run the following <code>curl</code> command or use SDK to send the query:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-3eeeda67-5cd6-40b8-b0d0-2897c7b33b14">REST API</a></li> <li data-lang="python"><a href="#tab-81d8a2b1-ef1c-4ecf-8470-13a262a52434">Python SDK</a></li> <li data-lang="php"><a href="#tab-bf406be0-db65-4889-b95b-69371919ba33">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-fab0aa8c-e4c4-4539-9fb1-a6a96496ff52">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-5be30565-26d4-4e7a-9162-98d691bbec44">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-3eeeda67-5cd6-40b8-b0d0-2897c7b33b14"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p>Do not kill the deployed engine process.</p><p>By default, the deployed engine binds to <a href="http://localhost:8000"><a href="http://localhost:8000">http://localhost:8000</a></a>. You can visit that page in your web browser to check its status.</p><p><img alt="Engine Status" src="/images/engine-server-3246414b.png"/></p></p><h2 id='6.-use-the-engine' class='header-anchors'>6. Use the Engine</h2><p>Now, You can retrieve predicted results. To retrieve 4 items which are similar to item ID &quot;i1&quot;. You send this JSON <code>{ &quot;items&quot;: [&quot;i1&quot;], &quot;num&quot;: 4 }</code> to the deployed engine and it will return a JSON of the recommended items. Simply send a query by making a HTTP request or through the <code>EngineClient</code> of an SDK.</p><p>With the deployed engine running, open another terminal and run the following <code>curl</code> command or use SDK to send the query:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-f559fbba-b2ca-4be3-88e8-80adba47445b">REST API</a></li> <li data-lang="python"><a href="#tab-85480cb6-bbb5-4887-aaed-3014dd5aff8b">Python SDK</a></li> <li data-lang="php"><a href="#tab-49845546-e269-4b66-88b5-c8243d493332">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-efdc98b7-14fe-49a0-ae45-64280f44529e">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-c2ce534c-8c0e-4a6b-8fa0-c85c7c8175bf">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-f559fbba-b2ca-4be3-88e8-80adba47445b"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4</pre></td> <td class="code"><pre><span class="gp">$ </span>curl -H <span class="s2">"Content-Type: application/json"</span> <span class="se">\</span>
 -d <span class="s1">'{ "items": ["i1"], "num": 4 }'</span> <span class="se">\</span>
 http://localhost:8000/queries.json
 
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-81d8a2b1-ef1c-4ecf-8470-13a262a52434"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-85480cb6-bbb5-4887-aaed-3014dd5aff8b"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3</pre></td> <td class="code"><pre><span class="kn">import</span> <span class="nn">predictionio</span>
 <span class="n">engine_client</span> <span class="o">=</span> <span class="n">predictionio</span><span class="o">.</span><span class="n">EngineClient</span><span class="p">(</span><span class="n">url</span><span class="o">=</span><span class="s">"http://localhost:8000"</span><span class="p">)</span>
 <span class="k">print</span> <span class="n">engine_client</span><span class="o">.</span><span class="n">send_query</span><span class="p">({</span><span class="s">"items"</span><span class="p">:</span> <span class="p">[</span><span class="s">"i1"</span><span class="p">],</span> <span class="s">"num"</span><span class="p">:</span> <span class="mi">4</span><span class="p">})</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-bf406be0-db65-4889-b95b-69371919ba33"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-49845546-e269-4b66-88b5-c8243d493332"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -407,7 +407,7 @@
 <span class="nb">print_r</span><span class="p">(</span><span class="nv">$response</span><span class="p">);</span>
 
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-fab0aa8c-e4c4-4539-9fb1-a6a96496ff52"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-efdc98b7-14fe-49a0-ae45-64280f44529e"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -420,7 +420,7 @@
 <span class="n">response</span> <span class="o">=</span> <span class="n">client</span><span class="p">.</span><span class="nf">send_query</span><span class="p">(</span><span class="s1">'items'</span> <span class="o">=&gt;</span> <span class="p">[</span><span class="s1">'i1'</span><span class="p">],</span> <span class="s1">'num'</span> <span class="o">=&gt;</span> <span class="mi">4</span><span class="p">)</span>
 
 <span class="nb">puts</span> <span class="n">response</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-5be30565-26d4-4e7a-9162-98d691bbec44"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-c2ce534c-8c0e-4a6b-8fa0-c85c7c8175bf"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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diff --git a/templates/vanilla/quickstart/index.html b/templates/vanilla/quickstart/index.html
index 0fbdf58..38874e6 100644
--- a/templates/vanilla/quickstart/index.html
+++ b/templates/vanilla/quickstart/index.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html><head><title>Quick Start - Vanilla Engine Template</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Quick Start - Vanilla Engine Template"/><link rel="canonical" href="https://predictionio.apache.org/templates/vanilla/quickstart/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script src="//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script><script src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: true });}catch(e){}</script></head><body><div id="global"><header><div class="container" id="header-wrapper"><div class="row"><div class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a href="#"></a><a href="http://predictionio.apache.org/"><img alt="Apache PredictionIO" id="logo" src="/images/logos/logo-ee2b9bb3.png"/></a><span>®</span></div><div id="menu-wrapper"><div id="pill-wrapper"><a class="pill left" href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" href="//github.com/apache/predictionio/">OPEN SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md hidden-lg" src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Quick Start - Vanilla Engine Template</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="page-title"><h1>Quick Start - Vanilla Engine Template</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#usage">Usage</a> </li> <li> <a href="#1-install-and-run-predictionio">1. Install and Run PredictionIO</a> </li> <li> <a href="#2-create-a-new-engine-from-an-engine-template">2. Create a new Engine from an Engine Template</a> </li> <li> <a href="#3-generate-an-app-id-and-access-key">3. Generate an App ID and Access Key</a> </li> <li> <a href="#4a-collecting-data">4a. Collecting Data</a> </li> <li> <a href="#4b-import-sample-data">4b. Import Sample Data</a> </li> <li> <a href="#5-deploy-the-engine-as-a-service">5. Deploy the Engine as a Service</a> </li> <li> <a href="#6-use-the-engine">6. Use the Engine</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/templates/vanilla/quickstart.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="page-title"><h1>Quick Start - Vanilla Engine Template</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>The purpose of the Vanilla template is for developing new engine when you find other engine templates do not fit your needs. This template provides a skeleton to kick start new engine development.</p><p>By default, it simply reads the &quot;EVENT&quot; involving &quot;ENTITY_TYPE&quot; and &quot;TARGET_ENTITY_TYPE&quot;. The Algorithm counts the number of events and multiple it by the algorithm parameter and store it as Model. During serving, the Query is prefixed with the Model and return as PredictedResult.</p><h2 id='usage' class='header-anchors'>Usage</h2><h3 id='event-data-requirements' class='header-anchors'>Event Data Requirements</h3><p>No special event requirement</p><h3 id='input-query' class='header-anchors'>Input Query</h3> <ul> <li>a string</li> </ul> <h3 id='output-predictedresult' class='header-anchors'>Output PredictedResult</h3> <ul> <li>a string</li> </ul> <h2 id='1.-install-and-run-predictionio' class='header-anchors'>1. Install and Run PredictionIO</h2> <p>First you need to <a href="/install">install PredictionIO 0.13.0</a> (if you haven&#39;t done it).</p><p>Let&#39;s say you have installed PredictionIO at <code>/home/yourname/PredictionIO/</code>. For convenience, add PredictionIO&#39;s binary command path to your <code>PATH</code>, i.e. <code>/home/yourname/PredictionIO/bin</code>:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nv">PATH</span><span class="o">=</span><span class="nv">$PATH</span>:/home/yourname/PredictionIO/bin; <span class="nb">export </span>PATH
+<!DOCTYPE html><html><head><title>Quick Start - Vanilla Engine Template</title><meta charset="utf-8"/><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta class="swiftype" name="title" data-type="string" content="Quick Start - Vanilla Engine Template"/><link rel="canonical" href="https://predictionio.apache.org/templates/vanilla/quickstart/"/><link href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet"/><link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/><link href="/stylesheets/application-eccfc6cb.css" rel="stylesheet" type="text/css"/><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script src="//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script><script src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: true });}catch(e){}</script></head><body><div id="global"><header><div class="container" id="header-wrapper"><div class="row"><div class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a href="#"></a><a href="http://predictionio.apache.org/"><img alt="Apache PredictionIO" id="logo" src="/images/logos/logo-ee2b9bb3.png"/></a><span>®</span></div><div id="menu-wrapper"><div id="pill-wrapper"><a class="pill left" href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" href="//github.com/apache/predictionio/">OPEN SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md hidden-lg" src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div id="search-bar-row-wrapper"><div class="container-fluid" id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Quick Start - Vanilla Engine Template</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img id="left-menu-indicator" src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img src="/images/icons/search-glass-704bd4ff.png"/><input type="text" id="st-search-input" class="st-search-input" placeholder="Search Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div class="mobile-left-menu-toggler hidden-md hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div class="row"><div id="left-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO® Documentation</span></a><ul><li class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Started</span></a><ul><li class="level-2"><a class="final" href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a class="final" href="/install/"><span>Installing Apache PredictionIO</span></a></li><li class="level-2"><a class="final" href="/start/download/"><span>Downloading an Engine Template</span></a></li><li class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your First Engine</span></a></li><li class="level-2"><a class="final" href="/start/customize/"><span>Customizing the Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a class="final" href="/appintegration/"><span>App Integration Overview</span></a></li><li class="level-2"><a class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li class="level-3"><a class="final" href="/community/projects/#sdks"><span>Community Powered SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web Service</span></a></li><li class="level-2"><a class="final" href="/batchpredict/"><span>Batch Predictions</span></a></li><li class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a class="final" href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li class="level-2"><a class="final" href="/customize/troubleshooting/"><span>Troubleshooting Engine Development</span></a></li><li class="level-2"><a class="final" href="/api/current/#package"><span>Engine Scala APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li class="level-2"><a class="final" href="/datacollection/"><span>Event Server Overview</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventapi/"><span>Collecting Data with REST/SDKs</span></a></li><li class="level-2"><a class="final" href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li class="level-2"><a class="final" href="/datacollection/webhooks/"><span>Unifying Multichannel Data with Webhooks</span></a></li><li class="level-2"><a class="final" href="/datacollection/channel/"><span>Channel</span></a></li><li class="level-2"><a class="final" href="/datacollection/batchimport/"><span>Importing Data in Batch</span></a></li><li class="level-2"><a class="final" href="/datacollection/analytics/"><span>Using Analytics Tools</span></a></li><li class="level-2"><a class="final" href="/datacollection/plugin/"><span>Event Server Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Choosing an Algorithm</span></a><ul><li class="level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to Another Algorithm</span></a></li><li class="level-2"><a class="final" href="/algorithm/multiple/"><span>Combining Multiple Algorithms</span></a></li><li class="level-2"><a class="final" href="/algorithm/custom/"><span>Adding Your Own Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Tuning and Evaluation</span></a><ul><li class="level-2"><a class="final" href="/evaluation/"><span>Overview</span></a></li><li class="level-2"><a class="final" href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li class="level-2"><a class="final" href="/evaluation/evaluationdashboard/"><span>Evaluation Dashboard</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricchoose/"><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>System Architecture</span></a><ul><li class="level-2"><a class="final" href="/system/"><span>Architecture Overview</span></a></li><li class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using Another Data Store</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>PredictionIO® Official Templates</span></a><ul><li class="level-2"><a class="final" href="/templates/"><span>Intro</span></a></li><li class="level-2"><a class="expandible" href="#"><span>Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/recommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/reading-custom-events/"><span>Read Custom Events</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-data-prep/"><span>Customize Data Preparator</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/customize-serving/"><span>Customize Serving</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/training-with-implicit-preference/"><span>Train with Implicit Preference</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/blacklist-items/"><span>Filter Recommended Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust Score</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Similar Product</span></a><ul><li class="level-3"><a class="final" href="/templates/similarproduct/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple Events and Multiple Algorithms</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/return-item-properties/"><span>Returns Item Properties</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate Event</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events for Users</span></a></li><li class="level-3"><a class="final" href="/templates/similarproduct/recommended-user/"><span>Recommend Users</span></a></li></ul></li><li class="level-2"><a class="expandible" href="#"><span>Classification</span></a><ul><li class="level-3"><a class="final" href="/templates/classification/quickstart/"><span>Quick Start</span></a></li><li class="level-3"><a class="final" href="/templates/classification/dase/"><span>DASE</span></a></li><li class="level-3"><a class="final" href="/templates/classification/how-to/"><span>How-To</span></a></li><li class="level-3"><a class="final" href="/templates/classification/add-algorithm/"><span>Use Alternative Algorithm</span></a></li><li class="level-3"><a class="final" href="/templates/classification/reading-custom-properties/"><span>Read Custom Properties</span></a></li></ul></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li class="level-2"><a class="final" href="/gallery/template-gallery/"><span>Browse</span></a></li><li class="level-2"><a class="final" href="/community/submit-template/"><span>Submit your Engine as a Template</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a class="final" href="/community/projects/#demos"><span>Community Contributed Demo</span></a></li><li class="level-2"><a class="final" href="/demo/textclassification/"><span>Text Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a class="final" href="/community/contribute-code/"><span>Contribute Code</span></a></li><li class="level-2"><a class="final" href="/community/contribute-documentation/"><span>Contribute Documentation</span></a></li><li class="level-2"><a class="final" href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li class="level-2"><a class="final" href="/community/contribute-webhook/"><span>Contribute a Webhook</span></a></li><li class="level-2"><a class="final" href="/community/projects/"><span>Community Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a class="final" href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a class="final" href="/resources/release/"><span>Release Cadence</span></a></li><li class="level-2"><a class="final" href="/resources/intellij/"><span>Developing Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li class="level-2"><a class="final" href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class="level-1"><a class="expandible" href="#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a class="final" href="https://www.apache.org/"><span>Apache Homepage</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/licenses/"><span>License</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/sponsorship.html"><span>Sponsorship</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/foundation/thanks.html"><span>Thanks</span></a></li><li class="level-2"><a class="final" href="https://www.apache.org/security/"><span>Security</span></a></li></ul></li></ul></nav></div><div class="col-md-9 col-sm-12"><div class="content-header hidden-md hidden-lg"><div id="page-title"><h1>Quick Start - Vanilla Engine Template</h1></div></div><div id="table-of-content-wrapper"><h5>On this page</h5><aside id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a href="#usage">Usage</a> </li> <li> <a href="#1-install-and-run-predictionio">1. Install and Run PredictionIO</a> </li> <li> <a href="#2-create-a-new-engine-from-an-engine-template">2. Create a new Engine from an Engine Template</a> </li> <li> <a href="#3-generate-an-app-id-and-access-key">3. Generate an App ID and Access Key</a> </li> <li> <a href="#4a-collecting-data">4a. Collecting Data</a> </li> <li> <a href="#4b-import-sample-data">4b. Import Sample Data</a> </li> <li> <a href="#5-deploy-the-engine-as-a-service">5. Deploy the Engine as a Service</a> </li> <li> <a href="#6-use-the-engine">6. Use the Engine</a> </li> </ul> </aside><hr/><a id="edit-page-link" href="https://github.com/apache/predictionio/tree/livedoc/docs/manual/source/templates/vanilla/quickstart.html.md.erb"><img src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div class="content-header hidden-sm hidden-xs"><div id="page-title"><h1>Quick Start - Vanilla Engine Template</h1></div></div><div class="content"> <h2 id='overview' class='header-anchors'>Overview</h2><p>The purpose of the Vanilla template is for developing new engine when you find other engine templates do not fit your needs. This template provides a skeleton to kick start new engine development.</p><p>By default, it simply reads the &quot;EVENT&quot; involving &quot;ENTITY_TYPE&quot; and &quot;TARGET_ENTITY_TYPE&quot;. The Algorithm counts the number of events and multiple it by the algorithm parameter and store it as Model. During serving, the Query is prefixed with the Model and return as PredictedResult.</p><h2 id='usage' class='header-anchors'>Usage</h2><h3 id='event-data-requirements' class='header-anchors'>Event Data Requirements</h3><p>No special event requirement</p><h3 id='input-query' class='header-anchors'>Input Query</h3> <ul> <li>a string</li> </ul> <h3 id='output-predictedresult' class='header-anchors'>Output PredictedResult</h3> <ul> <li>a string</li> </ul> <h2 id='1.-install-and-run-predictionio' class='header-anchors'>1. Install and Run PredictionIO</h2> <p>First you need to <a href="/install">install PredictionIO 0.14.0</a> (if you haven&#39;t done it).</p><p>Let&#39;s say you have installed PredictionIO at <code>/home/yourname/PredictionIO/</code>. For convenience, add PredictionIO&#39;s binary command path to your <code>PATH</code>, i.e. <code>/home/yourname/PredictionIO/bin</code>:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span><span class="nv">PATH</span><span class="o">=</span><span class="nv">$PATH</span>:/home/yourname/PredictionIO/bin; <span class="nb">export </span>PATH
 </pre></td></tr></tbody></table> </div> <div class="alert-message note"><p>If you launched <strong>PredictionIO AWS instance</strong>, the path is located at <code>/opt/PredictionIO/bin</code>.</p></div><p>Once you have completed the installation process, please make sure all the components (PredictionIO Event Server, Elasticsearch, and HBase) are up and running.</p><div class="alert-message note"><p>If you launched <strong>PredictionIO AWS instance</strong>, you can skip <code>pio-start-all</code>. All components should have been started automatically.</p></div><p>If you are using PostgreSQL or MySQL, run the following to start PredictionIO Event Server:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio eventserver &amp;
 </pre></td></tr></tbody></table> </div> <p>If instead you are running HBase and Elasticsearch, run the following to start all PredictionIO Event Server, HBase, and Elasticsearch:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio-start-all
 </pre></td></tr></tbody></table> </div> <p>You can check the status by running:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1</pre></td><td class="code"><pre><span class="gp">$ </span>pio status
@@ -54,17 +54,17 @@
 </pre></td></tr></tbody></table> </div> <p>When the engine is deployed successfully and running, you should see a console message similar to the following:</p><div class="highlight shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2</pre></td><td class="code"><pre><span class="o">[</span>INFO] <span class="o">[</span>HttpListener] Bound to /0.0.0.0:8000
 <span class="o">[</span>INFO] <span class="o">[</span>MasterActor] Bind successful. Ready to serve.
-</pre></td></tr></tbody></table> </div> <p>Do not kill the deployed engine process.</p><p>By default, the deployed engine binds to <a href="http://localhost:8000"><a href="http://localhost:8000">http://localhost:8000</a></a>. You can visit that page in your web browser to check its status.</p><p><img alt="Engine Status" src="/images/engine-server-3246414b.png"/></p></p><h2 id='6.-use-the-engine' class='header-anchors'>6. Use the Engine</h2><p>Now, You can try to retrieve predicted results. The engine accepts JSON query with the field &#39;q&#39;: <code>{ &quot;q&quot; : &quot;foo&quot; }</code>. A prefix is added to the query data and return as PredictedResult.</p><p>With the deployed engine running, open another terminal and run the following <code>curl</code> command or use SDK to send the query:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-48334156-f992-4b5a-a695-4266345414c4">REST API</a></li> <li data-lang="python"><a href="#tab-09c753fd-c878-4f36-843e-adab30b34c83">Python SDK</a></li> <li data-lang="php"><a href="#tab-294fefa1-cbf5-4cbf-89b8-977112212f6e">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-eab0d1c8-a29c-486b-b4d8-1276b538bf02">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-aae1d064-3ef4-4cee-b2c3-922b10d3675e">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-48334156-f992-4b5a-a695-4266345414c4"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td></tr></tbody></table> </div> <p>Do not kill the deployed engine process.</p><p>By default, the deployed engine binds to <a href="http://localhost:8000"><a href="http://localhost:8000">http://localhost:8000</a></a>. You can visit that page in your web browser to check its status.</p><p><img alt="Engine Status" src="/images/engine-server-3246414b.png"/></p></p><h2 id='6.-use-the-engine' class='header-anchors'>6. Use the Engine</h2><p>Now, You can try to retrieve predicted results. The engine accepts JSON query with the field &#39;q&#39;: <code>{ &quot;q&quot; : &quot;foo&quot; }</code>. A prefix is added to the query data and return as PredictedResult.</p><p>With the deployed engine running, open another terminal and run the following <code>curl</code> command or use SDK to send the query:</p><div class="tabs"> <ul class="control"> <li data-lang="json"><a href="#tab-836b3254-56c1-4a33-9687-5fff3e1559ec">REST API</a></li> <li data-lang="python"><a href="#tab-41c72412-1ca2-452c-9754-3057f675def6">Python SDK</a></li> <li data-lang="php"><a href="#tab-73df52e4-e848-438a-98ba-ef5c8f572793">PHP SDK</a></li> <li data-lang="ruby"><a href="#tab-8852693f-74f6-4b82-ab12-ff0a427b230a">Ruby SDK</a></li> <li data-lang="java"><a href="#tab-d6f506dd-aeec-4ac1-b269-33232c637750">Java SDK</a></li> </ul> <div data-tab="REST API" data-lang="json" id="tab-836b3254-56c1-4a33-9687-5fff3e1559ec"> <div class="highlight shell"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3</pre></td> <td class="code"><pre><span class="gp">$ </span>curl -H <span class="s2">"Content-Type: application/json"</span> <span class="se">\</span>
 -d <span class="s1">'{ "q": "foo" }'</span> http://localhost:8000/queries.json
 
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-09c753fd-c878-4f36-843e-adab30b34c83"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Python SDK" data-lang="python" id="tab-41c72412-1ca2-452c-9754-3057f675def6"> <div class="highlight python"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3</pre></td> <td class="code"><pre><span class="kn">import</span> <span class="nn">predictionio</span>
 <span class="n">engine_client</span> <span class="o">=</span> <span class="n">predictionio</span><span class="o">.</span><span class="n">EngineClient</span><span class="p">(</span><span class="n">url</span><span class="o">=</span><span class="s">"http://localhost:8000"</span><span class="p">)</span>
 <span class="k">print</span> <span class="n">engine_client</span><span class="o">.</span><span class="n">send_query</span><span class="p">({</span> <span class="s">"q"</span><span class="p">:</span> <span class="s">"foo"</span> <span class="p">})</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-294fefa1-cbf5-4cbf-89b8-977112212f6e"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="PHP SDK" data-lang="php" id="tab-73df52e4-e848-438a-98ba-ef5c8f572793"> <div class="highlight php"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
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@@ -83,7 +83,7 @@
 <span class="nb">print_r</span><span class="p">(</span><span class="nv">$response</span><span class="p">);</span>
 
 <span class="cp">?&gt;</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-eab0d1c8-a29c-486b-b4d8-1276b538bf02"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Ruby SDK" data-lang="ruby" id="tab-8852693f-74f6-4b82-ab12-ff0a427b230a"> <div class="highlight ruby"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
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@@ -96,7 +96,7 @@
 <span class="n">response</span> <span class="o">=</span> <span class="n">client</span><span class="p">.</span><span class="nf">send_query</span><span class="p">(</span><span class="s1">'q'</span> <span class="o">=&gt;</span> <span class="s1">'foo'</span><span class="p">)</span>
 
 <span class="nb">puts</span> <span class="n">response</span>
-</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-aae1d064-3ef4-4cee-b2c3-922b10d3675e"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
+</pre></td> </tr></tbody></table> </div> </div> <div data-tab="Java SDK" data-lang="java" id="tab-d6f506dd-aeec-4ac1-b269-33232c637750"> <div class="highlight java"> <table style="border-spacing: 0"><tbody><tr> <td class="gutter gl" style="text-align: right"><pre class="lineno">1
 2
 3
 4