[jira] [Created] (MAHOUT-1124) Deprecate ununsed recommenders

["Sebastian Schelter (JIRA)" <ji...@apache.org>]

Sebastian Schelter created MAHOUT-1124:
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             Summary: Deprecate ununsed recommenders
                 Key: MAHOUT-1124
                 URL: https://issues.apache.org/jira/browse/MAHOUT-1124
             Project: Mahout
          Issue Type: Task
          Components: Collaborative Filtering
            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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