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<h2 title="Class SVDPlusPlus" class="title">Class SVDPlusPlus</h2>
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<pre>public class <span class="strong">SVDPlusPlus</span>
extends java.lang.Object</pre>
<div class="block">Implementation of SVD++ algorithm.</div>
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<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/graphx/lib/SVDPlusPlus.Conf.html" title="class in org.apache.spark.graphx.lib">SVDPlusPlus.Conf</a></strong></code>
<div class="block">Configuration parameters for SVDPlusPlus.</div>
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<td class="colOne"><code><strong><a href="../../../../../org/apache/spark/graphx/lib/SVDPlusPlus.html#SVDPlusPlus()">SVDPlusPlus</a></strong>()</code>&nbsp;</td>
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<td class="colFirst"><code>static scala.Tuple2&lt;<a href="../../../../../org/apache/spark/graphx/Graph.html" title="class in org.apache.spark.graphx">Graph</a>&lt;scala.Tuple4&lt;double[],double[],java.lang.Object,java.lang.Object&gt;,java.lang.Object&gt;,java.lang.Object&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/graphx/lib/SVDPlusPlus.html#run(org.apache.spark.rdd.RDD, org.apache.spark.graphx.lib.SVDPlusPlus.Conf)">run</a></strong>(<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/Edge.html" title="class in org.apache.spark.graphx">Edge</a>&lt;java.lang.Object&gt;&gt;&nbsp;edges,
   <a href="../../../../../org/apache/spark/graphx/lib/SVDPlusPlus.Conf.html" title="class in org.apache.spark.graphx.lib">SVDPlusPlus.Conf</a>&nbsp;conf)</code>
<div class="block">Implement SVD++ based on "Factorization Meets the Neighborhood:
 a Multifaceted Collaborative Filtering Model",
 available at <code>http://public.research.att.com/~volinsky/netflix/kdd08koren.pdf</code>.</div>
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<td class="colFirst"><code>static scala.Tuple2&lt;<a href="../../../../../org/apache/spark/graphx/Graph.html" title="class in org.apache.spark.graphx">Graph</a>&lt;scala.Tuple4&lt;double[],double[],java.lang.Object,java.lang.Object&gt;,java.lang.Object&gt;,java.lang.Object&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/graphx/lib/SVDPlusPlus.html#runSVDPlusPlus(org.apache.spark.rdd.RDD, org.apache.spark.graphx.lib.SVDPlusPlus.Conf)">runSVDPlusPlus</a></strong>(<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/Edge.html" title="class in org.apache.spark.graphx">Edge</a>&lt;java.lang.Object&gt;&gt;&nbsp;edges,
              <a href="../../../../../org/apache/spark/graphx/lib/SVDPlusPlus.Conf.html" title="class in org.apache.spark.graphx.lib">SVDPlusPlus.Conf</a>&nbsp;conf)</code>
<div class="block">This method is now replaced by the updated version of <code>run()</code> and returns exactly
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<pre>public&nbsp;SVDPlusPlus()</pre>
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<pre>public static&nbsp;scala.Tuple2&lt;<a href="../../../../../org/apache/spark/graphx/Graph.html" title="class in org.apache.spark.graphx">Graph</a>&lt;scala.Tuple4&lt;double[],double[],java.lang.Object,java.lang.Object&gt;,java.lang.Object&gt;,java.lang.Object&gt;&nbsp;runSVDPlusPlus(<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/Edge.html" title="class in org.apache.spark.graphx">Edge</a>&lt;java.lang.Object&gt;&gt;&nbsp;edges,
                                                                                                                                      <a href="../../../../../org/apache/spark/graphx/lib/SVDPlusPlus.Conf.html" title="class in org.apache.spark.graphx.lib">SVDPlusPlus.Conf</a>&nbsp;conf)</pre>
<div class="block">This method is now replaced by the updated version of <code>run()</code> and returns exactly
 the same result.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>edges</code> - (undocumented)</dd><dd><code>conf</code> - (undocumented)</dd>
<dt><span class="strong">Returns:</span></dt><dd>(undocumented)</dd></dl>
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<h4>run</h4>
<pre>public static&nbsp;scala.Tuple2&lt;<a href="../../../../../org/apache/spark/graphx/Graph.html" title="class in org.apache.spark.graphx">Graph</a>&lt;scala.Tuple4&lt;double[],double[],java.lang.Object,java.lang.Object&gt;,java.lang.Object&gt;,java.lang.Object&gt;&nbsp;run(<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/Edge.html" title="class in org.apache.spark.graphx">Edge</a>&lt;java.lang.Object&gt;&gt;&nbsp;edges,
                                                                                                                           <a href="../../../../../org/apache/spark/graphx/lib/SVDPlusPlus.Conf.html" title="class in org.apache.spark.graphx.lib">SVDPlusPlus.Conf</a>&nbsp;conf)</pre>
<div class="block">Implement SVD++ based on "Factorization Meets the Neighborhood:
 a Multifaceted Collaborative Filtering Model",
 available at <code>http://public.research.att.com/~volinsky/netflix/kdd08koren.pdf</code>.
 <p>
 The prediction rule is rui = u + bu + bi + qi*(pu + |N(u)|^^-0.5^^*sum(y)),
 see the details on page 6.
 <p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>edges</code> - edges for constructing the graph
 <p></dd><dd><code>conf</code> - SVDPlusPlus parameters
 <p></dd>
<dt><span class="strong">Returns:</span></dt><dd>a graph with vertex attributes containing the trained model</dd></dl>
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