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| <h1>PAlgorithm</h1><h3><span class="morelinks"><div>Related Doc: |
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| <span class="modifier_kind"> |
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| <span class="kind">class</span> |
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| <span class="name">PAlgorithm</span><span class="tparams">[<span name="PD">PD</span>, <span name="M">M</span>, <span name="Q">Q</span>, <span name="P">P</span>]</span><span class="result"> extends <a href="../core/BaseAlgorithm.html" class="extype" name="org.apache.predictionio.core.BaseAlgorithm">BaseAlgorithm</a>[<span class="extype" name="org.apache.predictionio.controller.PAlgorithm.PD">PD</span>, <span class="extype" name="org.apache.predictionio.controller.PAlgorithm.M">M</span>, <span class="extype" name="org.apache.predictionio.controller.PAlgorithm.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.PAlgorithm.P">P</span>]</span> |
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| |
| <div id="comment" class="fullcommenttop"><div class="comment cmt"><p>Base class of a parallel algorithm.</p><p>A parallel algorithm can be run in parallel on a cluster and produces a |
| model that can also be distributed across a cluster.</p><p>If your input query class requires custom JSON4S serialization, the most |
| idiomatic way is to implement a trait that extends <a href="CustomQuerySerializer.html" class="extype" name="org.apache.predictionio.controller.CustomQuerySerializer">CustomQuerySerializer</a>, |
| and mix that into your algorithm class, instead of overriding |
| <a href="#querySerializer:org.json4s.Formats" class="extmbr" name="org.apache.predictionio.controller.PAlgorithm#querySerializer">querySerializer</a> directly.</p><p>To provide evaluation feature, one must override and implement the |
| <a href="#batchPredict(m:M,qs:org.apache.spark.rdd.RDD[(Long,Q)]):org.apache.spark.rdd.RDD[(Long,P)]" class="extmbr" name="org.apache.predictionio.controller.PAlgorithm#batchPredict">batchPredict</a> method. Otherwise, an exception will be thrown when pio eval<code> |
| is used. |
| </code></p></div><dl class="paramcmts block"><dt class="tparam">PD</dt><dd class="cmt"><p>Prepared data class.</p></dd><dt class="tparam">M</dt><dd class="cmt"><p>Trained model 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></dl><div class="toggleContainer block"> |
| <span class="toggle">Linear Supertypes</span> |
| <div class="superTypes hiddenContent"><a href="../core/BaseAlgorithm.html" class="extype" name="org.apache.predictionio.core.BaseAlgorithm">BaseAlgorithm</a>[<span class="extype" name="org.apache.predictionio.controller.PAlgorithm.PD">PD</span>, <span class="extype" name="org.apache.predictionio.controller.PAlgorithm.M">M</span>, <span class="extype" name="org.apache.predictionio.controller.PAlgorithm.Q">Q</span>, <span class="extype" name="org.apache.predictionio.controller.PAlgorithm.P">P</span>], <a href="../core/BaseQuerySerializer.html" class="extype" name="org.apache.predictionio.core.BaseQuerySerializer">BaseQuerySerializer</a>, <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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| <li class="in" name="org.apache.predictionio.controller.PAlgorithm"><span>PAlgorithm</span></li><li class="in" name="org.apache.predictionio.core.BaseAlgorithm"><span>BaseAlgorithm</span></li><li class="in" name="org.apache.predictionio.core.BaseQuerySerializer"><span>BaseQuerySerializer</span></li><li class="in" name="org.apache.predictionio.core.AbstractDoer"><span>AbstractDoer</span></li><li class="in" name="scala.Serializable"><span>Serializable</span></li><li class="in" name="java.io.Serializable"><span>Serializable</span></li><li class="in" name="scala.AnyRef"><span>AnyRef</span></li><li class="in" name="scala.Any"><span>Any</span></li> |
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| <h3>Instance Constructors</h3> |
| <ol><li name="org.apache.predictionio.controller.PAlgorithm#<init>" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped"> |
| <a id="<init>():org.apache.predictionio.controller.PAlgorithm[PD,M,Q,P]"></a> |
| <a id="<init>:PAlgorithm[PD,M,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">PAlgorithm</span><span class="params">()</span> |
| </span> |
| </h4><span class="permalink"> |
| <a href="../../../../index.html#org.apache.predictionio.controller.PAlgorithm@<init>():org.apache.predictionio.controller.PAlgorithm[PD,M,Q,P]" title="Permalink" target="_top"> |
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| <p class="shortcomment cmt"></p> |
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| <div id="values" class="values members"> |
| <h3>Abstract Value Members</h3> |
| <ol><li name="org.apache.predictionio.controller.PAlgorithm#predict" visbl="pub" data-isabs="true" fullComment="yes" group="Ungrouped"> |
| <a id="predict(model:M,query:Q):P"></a> |
| <a id="predict(M,Q):P"></a> |
| <h4 class="signature"> |
| <span class="modifier_kind"> |
| <span class="modifier">abstract </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.predictionio.controller.PAlgorithm.M">M</span></span>, <span name="query">query: <span class="extype" name="org.apache.predictionio.controller.PAlgorithm.Q">Q</span></span>)</span><span class="result">: <span class="extype" name="org.apache.predictionio.controller.PAlgorithm.P">P</span></span> |
| </span> |
| </h4><span class="permalink"> |
| <a href="../../../../index.html#org.apache.predictionio.controller.PAlgorithm@predict(model:M,query:Q):P" title="Permalink" target="_top"> |
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| </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,pd:PD):M" class="extmbr" name="org.apache.predictionio.controller.PAlgorithm#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></div> |
| </li><li name="org.apache.predictionio.controller.PAlgorithm#train" visbl="pub" data-isabs="true" fullComment="yes" group="Ungrouped"> |
| <a id="train(sc:org.apache.spark.SparkContext,pd:PD):M"></a> |
| <a id="train(SparkContext,PD):M"></a> |
| <h4 class="signature"> |
| <span class="modifier_kind"> |
| <span class="modifier">abstract </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="pd">pd: <span class="extype" name="org.apache.predictionio.controller.PAlgorithm.PD">PD</span></span>)</span><span class="result">: <span class="extype" name="org.apache.predictionio.controller.PAlgorithm.M">M</span></span> |
| </span> |
| </h4><span class="permalink"> |
| <a href="../../../../index.html#org.apache.predictionio.controller.PAlgorithm@train(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">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 class="param">pd</dt><dd class="cmt"><p>Prepared data for model training.</p></dd><dt>returns</dt><dd class="cmt"><p>Trained model.</p></dd></dl></div> |
| </li></ol> |
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| <h3>Concrete Value Members</h3> |
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| <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>Any</dd></dl></div> |
| </li><li name="org.apache.predictionio.controller.PAlgorithm#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(M,RDD[(Long,Q)]):RDD[(Long,P)]"></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.predictionio.controller.PAlgorithm.M">M</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.controller.PAlgorithm.Q">Q</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.predictionio.controller.PAlgorithm.P">P</span>)]</span> |
| </span> |
| </h4><span class="permalink"> |
| <a href="../../../../index.html#org.apache.predictionio.controller.PAlgorithm@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">To provide evaluation feature, one must override and implement this method |
| to generate many predictions in batch.</p><div class="fullcomment"><div class="comment cmt"><p>To provide evaluation feature, one must override and implement this method |
| to generate many predictions in batch. Otherwise, an exception will be |
| thrown when <code>pio eval</code> is used.</p><p>The default implementation throws an exception. |
| </p></div><dl class="paramcmts block"><dt class="param">m</dt><dd class="cmt"><p>Trained model produced by <a href="#train(sc:org.apache.spark.SparkContext,pd:PD):M" class="extmbr" name="org.apache.predictionio.controller.PAlgorithm#train">train</a>.</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></dl></div> |
| </li><li name="org.apache.predictionio.controller.PAlgorithm#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,Q)]):RDD[(Long,P)]"></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.controller.PAlgorithm.Q">Q</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.predictionio.controller.PAlgorithm.P">P</span>)]</span> |
| </span> |
| </h4><span class="permalink"> |
| <a href="../../../../index.html#org.apache.predictionio.controller.PAlgorithm@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="" class="extype" name="org.apache.predictionio.controller.PAlgorithm">PAlgorithm</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> |
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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> |
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| </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.controller.PAlgorithm@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.controller.PAlgorithm@equals(x$1:Any):Boolean" title="Permalink" target="_top"> |
| <img src="../../../../lib/permalink.png" alt="Permalink" /> |
| </a> |
| </span> |
| <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef → Any</dd></dl></div> |
| </li><li name="scala.AnyRef#finalize" visbl="prt" data-isabs="false" fullComment="yes" group="Ungrouped"> |
| <a id="finalize():Unit"></a> |
| <a id="finalize():Unit"></a> |
| <h4 class="signature"> |
| <span class="modifier_kind"> |
| <span class="modifier"></span> |
| <span class="kind">def</span> |
| </span> |
| <span class="symbol"> |
| <span class="name">finalize</span><span class="params">()</span><span class="result">: <a href="http://www.scala-lang.org/api/2.11.12/index.html#scala.Unit" class="extype" target="_top">Unit</a></span> |
| </span> |
| </h4><span class="permalink"> |
| <a href="../../../../index.html#org.apache.predictionio.controller.PAlgorithm@finalize():Unit" title="Permalink" target="_top"> |
| <img src="../../../../lib/permalink.png" alt="Permalink" /> |
| </a> |
| </span> |
| <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected[<a href="../../../../java$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.controller.PAlgorithm@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.controller.PAlgorithm@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.controller.PAlgorithm@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.controller.PAlgorithm@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.PAlgorithm#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="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.controller.PAlgorithm@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 |
| 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 |
| algorithm models are persisted).</p><p>In general, parallel models may contain multiple RDDs. It is not easy to |
| infer and persist them programmatically since these RDDs may be |
| potentially huge. To persist these models, engine developers need to mix |
| the <a href="PersistentModel.html" class="extype" name="org.apache.predictionio.controller.PersistentModel">PersistentModel</a> trait into the model class and implement |
| <a href="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>. 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="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="" class="extype" name="org.apache.predictionio.controller.PAlgorithm">PAlgorithm</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.controller.PAlgorithm@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.controller.PAlgorithm@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.controller.PAlgorithm@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.PAlgorithm#predictBase" visbl="pub" data-isabs="false" fullComment="yes" group="Ungrouped"> |
| <a id="predictBase(baseModel:Any,query:Q):P"></a> |
| <a id="predictBase(Any,Q):P"></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="baseModel">baseModel: <span class="extype" name="scala.Any">Any</span></span>, <span name="query">query: <span class="extype" name="org.apache.predictionio.controller.PAlgorithm.Q">Q</span></span>)</span><span class="result">: <span class="extype" name="org.apache.predictionio.controller.PAlgorithm.P">P</span></span> |
| </span> |
| </h4><span class="permalink"> |
| <a href="../../../../index.html#org.apache.predictionio.controller.PAlgorithm@predictBase(baseModel:Any,query: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>returns</dt><dd class="cmt"><p>Predicted result</p></dd></dl><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="" class="extype" name="org.apache.predictionio.controller.PAlgorithm">PAlgorithm</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[Q]"></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.controller.PAlgorithm.Q">Q</span>]</span> |
| </span> |
| </h4><span class="permalink"> |
| <a href="../../../../index.html#org.apache.predictionio.controller.PAlgorithm@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.controller.PAlgorithm@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="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="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:=>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.controller.PAlgorithm@synchronized[T0](x$1:=>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.controller.PAlgorithm@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.controller.PAlgorithm#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,PD):M"></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: <span class="extype" name="org.apache.predictionio.controller.PAlgorithm.PD">PD</span></span>)</span><span class="result">: <span class="extype" name="org.apache.predictionio.controller.PAlgorithm.M">M</span></span> |
| </span> |
| </h4><span class="permalink"> |
| <a href="../../../../index.html#org.apache.predictionio.controller.PAlgorithm@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="" class="extype" name="org.apache.predictionio.controller.PAlgorithm">PAlgorithm</a> → <a href="../core/BaseAlgorithm.html" class="extype" name="org.apache.predictionio.core.BaseAlgorithm">BaseAlgorithm</a></dd></dl></div> |
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