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From jkbradley <...@git.apache.org>
Subject [GitHub] spark pull request: [ML][MLLIB] SPARK-2426: Integrate Breeze Quadr...
Date Wed, 08 Apr 2015 23:41:53 GMT
Github user jkbradley commented on the pull request:

    https://github.com/apache/spark/pull/3221#issuecomment-91069400
  
    @debasish83  Including sparsity for both recommendation and for topic modeling will be
useful, to be sure.  We don't have perplexity (or even prediction) implemented yet, but that
definitely needs to be done for LDA.  New JIRA: [https://issues.apache.org/jira/browse/SPARK-6793]


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