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From "Sebastian Schelter (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (MAHOUT-1124) Deprecate ununsed recommenders
Date Fri, 07 Dec 2012 09:05:21 GMT

     [ https://issues.apache.org/jira/browse/MAHOUT-1124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sebastian Schelter resolved MAHOUT-1124.
----------------------------------------

    Resolution: Fixed
    
> Deprecate ununsed recommenders
> ------------------------------
>
>                 Key: MAHOUT-1124
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1124
>             Project: Mahout
>          Issue Type: Task
>          Components: Collaborative Filtering
>    Affects Versions: 0.8
>            Reporter: Sebastian Schelter
>            Assignee: Sean Owen
>
> Deprecating some recommenders for the following reasons:
> org.apache.mahout.cf.taste.impl.recommender.svd.FunkSVDFactorizer
> RatingSGDFactorizer should be learning faster and has a nicer model as
> it includes user/item biases
> org.apache.mahout.cf.taste.impl.recommender.svd.ImplicitLinearRegressionFactorizer
> Seems to be using the same model as ALSWRFactorizer, however there are
> no tests and ALSWR can handle more explicit and implicit feedback
> org.apache.mahout.cf.taste.impl.recommender.TreeClusteringRecommender
> org.apache.mahout.cf.taste.impl.recommender.TreeClusteringRecommender2
> org.apache.mahout.cf.taste.impl.recommender.knn
> I don't recall anybody using those or asking about them the last years.

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