Adam Ilardi created MAHOUT-1447:
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             Summary: ImplicitFeedbackAlternatingLeastSquaresSolver tests and 
features
                 Key: MAHOUT-1447
                 URL: https://issues.apache.org/jira/browse/MAHOUT-1447
             Project: Mahout
          Issue Type: Improvement
          Components: Collaborative Filtering
    Affects Versions: 0.9
            Reporter: Adam Ilardi
            Assignee: Sebastian Schelter
            Priority: Minor
             Fix For: 1.0


I wrote a simple patch to do the calculation in parallel. It could be better 
but it gets the job done. Is there some other (Matrix transpose dot matrix) 
code in mahout that is already parallel? I will reuse that if it exists.  



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