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https://issues.apache.org/jira/browse/MAHOUT-1429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13918224#comment-13918224
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Sebastian Schelter commented on MAHOUT-1429:
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Very nice, did you conduct some kind of benchmark to see what benefit your
changes give to the user?
> Parallelize YtransposeY in ImplicitFeedbackAlternatingLeastSquaresSolver
> ------------------------------------------------------------------------
>
> Key: MAHOUT-1429
> URL: https://issues.apache.org/jira/browse/MAHOUT-1429
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: 0.9
> Reporter: Adam Ilardi
> Priority: Minor
> Labels: newbie, patch, performance
> Attachments: MAHOUT-1429.patch
>
>
> 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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