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Posted to dev@mahout.apache.org by "Dmitriy Lyubimov (JIRA)" <ji...@apache.org> on 2015/06/11 00:23:00 UTC

[jira] [Created] (MAHOUT-1737) H20 implementation of AewUnaryFunc physical operator

Dmitriy Lyubimov created MAHOUT-1737:
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             Summary: H20 implementation of AewUnaryFunc physical operator
                 Key: MAHOUT-1737
                 URL: https://issues.apache.org/jira/browse/MAHOUT-1737
             Project: Mahout
          Issue Type: Improvement
            Reporter: Dmitriy Lyubimov


this physical operator allows to optimize elementwise expressions like 
`dlog(X * X) + 1` where elementwise function compositions are detected and fused into one physical operator by logical optimizer. 

This is an essential support.




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