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Posted to dev@mahout.apache.org by "Xiaomeng Huang (JIRA)" <ji...@apache.org> on 2014/07/04 04:23:35 UTC

[jira] [Created] (MAHOUT-1591) Parallel job in recommendation

Xiaomeng Huang created MAHOUT-1591:
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             Summary: Parallel job in recommendation
                 Key: MAHOUT-1591
                 URL: https://issues.apache.org/jira/browse/MAHOUT-1591
             Project: Mahout
          Issue Type: Improvement
            Reporter: Xiaomeng Huang


Now all job in recommendation are sequential. But some jobs are not depend on the previous job. For example, in PreparePreferenceMatrixJob.java, the input of job itemIDIndex and toUserVectors are same. So they can run concurrently. And so as RowSimilarityJob.java.
I think this will be a obvious performance improvement.



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