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Posted to dev@mahout.apache.org by "Suneel Marthi (JIRA)" <ji...@apache.org> on 2013/07/25 14:45:50 UTC

[jira] [Updated] (MAHOUT-1087) ExpectationMaximizationSVDFactorizer doesn't do expectation maximization

     [ https://issues.apache.org/jira/browse/MAHOUT-1087?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Suneel Marthi updated MAHOUT-1087:
----------------------------------

    Affects Version/s: 0.7
        Fix Version/s: 0.8
    
> 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
>    Affects Versions: 0.7
>            Reporter: Sebastian Schelter
>            Assignee: Sean Owen
>             Fix For: 0.8
>
>
> 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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