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Posted to dev@mahout.apache.org by "Sebastian Schelter (JIRA)" <ji...@apache.org> on 2012/10/29 22:08:13 UTC

[jira] [Resolved] (MAHOUT-1106) SVD++

     [ https://issues.apache.org/jira/browse/MAHOUT-1106?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sebastian Schelter resolved MAHOUT-1106.
----------------------------------------

    Resolution: Fixed
      Assignee: Sebastian Schelter  (was: Sean Owen)

Thank you very much again!
                
> SVD++
> -----
>
>                 Key: MAHOUT-1106
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1106
>             Project: Mahout
>          Issue Type: New Feature
>          Components: Collaborative Filtering
>            Reporter: Zeno Gantner
>            Assignee: Sebastian Schelter
>         Attachments: SVDPlusPlusFactorizer.java
>
>
> Initial shot at SVD++.
> Relies on the RatingsSGDFactorizer class introduced in MAHOUT-1089.
> One could also think about several enhancements, e.g. having separate regularization constants for user and item factors.
> I am also the author of the SVDPlusPlus class in MyMediaLite, so if there are any similarities, no need to worry -- I am okay with relicensing this to the Apache 2.0 license.
> https://github.com/zenogantner/MyMediaLite/blob/master/src/MyMediaLite/RatingPrediction/SVDPlusPlus.cs

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