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| <div class="subTitle">org.apache.mahout.math.hadoop.stochasticsvd</div> |
| <h2 title="Class BtJob" class="title">Class BtJob</h2> |
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| <ul class="inheritance"> |
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| <li>org.apache.mahout.math.hadoop.stochasticsvd.BtJob</li> |
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| <pre>public final class <span class="typeNameLabel">BtJob</span> |
| extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">Bt job. For details, see working notes in MAHOUT-376. |
| <p/> |
| <p/> |
| Uses hadoop deprecated API wherever new api has not been updated |
| (MAHOUT-593), hence @SuppressWarning("deprecation"). |
| <p/> |
| <p/> |
| This job outputs either Bt in its standard output, or upper triangular |
| matrices representing BBt partial sums if that's requested . If the latter |
| mode is enabled, then we accumulate BBt outer product sums in upper |
| triangular accumulator and output it at the end of the job, thus saving space |
| and BBt job. |
| <p/> |
| <p/> |
| This job also outputs Q and Bt and optionally BBt. Bt is output to standard |
| job output (part-*) and Q and BBt use named multiple outputs. |
| <p/> |
| <p/></div> |
| </li> |
| </ul> |
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| <h3>Nested Class Summary</h3> |
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| <caption><span>Nested Classes</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Class and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/BtJob.BtMapper.html" title="class in org.apache.mahout.math.hadoop.stochasticsvd">BtJob.BtMapper</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/BtJob.OuterProductCombiner.html" title="class in org.apache.mahout.math.hadoop.stochasticsvd">BtJob.OuterProductCombiner</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/BtJob.OuterProductReducer.html" title="class in org.apache.mahout.math.hadoop.stochasticsvd">BtJob.OuterProductReducer</a></span></code> </td> |
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| </table> |
| </li> |
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| <h3>Field Summary</h3> |
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| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/BtJob.html#OUTPUT_BBT">OUTPUT_BBT</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/BtJob.html#OUTPUT_BT">OUTPUT_BT</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/BtJob.html#OUTPUT_Q">OUTPUT_Q</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/BtJob.html#OUTPUT_SB">OUTPUT_SB</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/BtJob.html#OUTPUT_SQ">OUTPUT_SQ</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/BtJob.html#PROP_NV">PROP_NV</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/BtJob.html#PROP_OUPTUT_BBT_PRODUCTS">PROP_OUPTUT_BBT_PRODUCTS</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/BtJob.html#PROP_OUTER_PROD_BLOCK_HEIGHT">PROP_OUTER_PROD_BLOCK_HEIGHT</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/BtJob.html#PROP_QJOB_PATH">PROP_QJOB_PATH</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/BtJob.html#PROP_RHAT_BROADCAST">PROP_RHAT_BROADCAST</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/BtJob.html#PROP_XI_PATH">PROP_XI_PATH</a></span></code> </td> |
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| <h3>Method Summary</h3> |
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| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
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| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/BtJob.html#run-org.apache.hadoop.conf.Configuration-org.apache.hadoop.fs.Path:A-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.Path-int-int-int-int-int-boolean-java.lang.Class-boolean-">run</a></span>(org.apache.hadoop.conf.Configuration conf, |
| org.apache.hadoop.fs.Path[] inputPathA, |
| org.apache.hadoop.fs.Path inputPathQJob, |
| org.apache.hadoop.fs.Path xiPath, |
| org.apache.hadoop.fs.Path outputPath, |
| int minSplitSize, |
| int k, |
| int p, |
| int btBlockHeight, |
| int numReduceTasks, |
| boolean broadcast, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><? extends org.apache.hadoop.io.Writable> labelClass, |
| boolean outputBBtProducts)</code> </td> |
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| <h3>Methods inherited from class java.lang.<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> |
| <code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <!-- ============ FIELD DETAIL =========== --> |
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| <h3>Field Detail</h3> |
| <a name="OUTPUT_Q"> |
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| <h4>OUTPUT_Q</h4> |
| <pre>public static final <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> OUTPUT_Q</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.mahout.math.hadoop.stochasticsvd.BtJob.OUTPUT_Q">Constant Field Values</a></dd> |
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| <h4>OUTPUT_BT</h4> |
| <pre>public static final <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> OUTPUT_BT</pre> |
| <dl> |
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| <h4>OUTPUT_BBT</h4> |
| <pre>public static final <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> OUTPUT_BBT</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.mahout.math.hadoop.stochasticsvd.BtJob.OUTPUT_BBT">Constant Field Values</a></dd> |
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| <h4>OUTPUT_SQ</h4> |
| <pre>public static final <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> OUTPUT_SQ</pre> |
| <dl> |
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| <dd><a href="../../../../../../constant-values.html#org.apache.mahout.math.hadoop.stochasticsvd.BtJob.OUTPUT_SQ">Constant Field Values</a></dd> |
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| <pre>public static final <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> OUTPUT_SB</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.mahout.math.hadoop.stochasticsvd.BtJob.OUTPUT_SB">Constant Field Values</a></dd> |
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| </a> |
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| <h4>PROP_QJOB_PATH</h4> |
| <pre>public static final <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> PROP_QJOB_PATH</pre> |
| <dl> |
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| <dd><a href="../../../../../../constant-values.html#org.apache.mahout.math.hadoop.stochasticsvd.BtJob.PROP_QJOB_PATH">Constant Field Values</a></dd> |
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| <h4>PROP_OUPTUT_BBT_PRODUCTS</h4> |
| <pre>public static final <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> PROP_OUPTUT_BBT_PRODUCTS</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.mahout.math.hadoop.stochasticsvd.BtJob.PROP_OUPTUT_BBT_PRODUCTS">Constant Field Values</a></dd> |
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| <a name="PROP_OUTER_PROD_BLOCK_HEIGHT"> |
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| </a> |
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| <li class="blockList"> |
| <h4>PROP_OUTER_PROD_BLOCK_HEIGHT</h4> |
| <pre>public static final <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> PROP_OUTER_PROD_BLOCK_HEIGHT</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.mahout.math.hadoop.stochasticsvd.BtJob.PROP_OUTER_PROD_BLOCK_HEIGHT">Constant Field Values</a></dd> |
| </dl> |
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| </ul> |
| <a name="PROP_RHAT_BROADCAST"> |
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| </a> |
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| <h4>PROP_RHAT_BROADCAST</h4> |
| <pre>public static final <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> PROP_RHAT_BROADCAST</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
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| <pre>public static final <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> PROP_XI_PATH</pre> |
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| <pre>public static final <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> PROP_NV</pre> |
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| <pre>public static void run(org.apache.hadoop.conf.Configuration conf, |
| org.apache.hadoop.fs.Path[] inputPathA, |
| org.apache.hadoop.fs.Path inputPathQJob, |
| org.apache.hadoop.fs.Path xiPath, |
| org.apache.hadoop.fs.Path outputPath, |
| int minSplitSize, |
| int k, |
| int p, |
| int btBlockHeight, |
| int numReduceTasks, |
| boolean broadcast, |
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