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https://issues.apache.org/jira/browse/MAHOUT-1087?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13466585#comment-13466585
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Hudson commented on MAHOUT-1087:
--------------------------------
Integrated in Mahout-Quality #1681 (See
[https://builds.apache.org/job/Mahout-Quality/1681/])
MAHOUT-1087 ExpectationMaximizationSVDFactorizer doesn't do expectation
maximization (Revision 1392112)
Result = FAILURE
ssc : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1392112
Files :
*
/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/impl/recommender/svd/ExpectationMaximizationSVDFactorizer.java
*
/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/impl/recommender/svd/FunkSVDFactorizer.java
> ExpectationMaximizationSVDFactorizer doesn't do expectation maximization
> ------------------------------------------------------------------------
>
> Key: MAHOUT-1087
> URL: https://issues.apache.org/jira/browse/MAHOUT-1087
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Reporter: Sebastian Schelter
> Assignee: Sean Owen
>
> This factorizer simply learns the user and item features via SGD as described
> in Simon Funk's famous blogpost, which is not expectation maximization, so I
> suggest we rename it to FunkSVD.
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