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  1. Mahout
  2. MAHOUT-1257

performance improvement to LogLikehood

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Won't Fix
    • Affects Version/s: None
    • Fix Version/s: 0.10.0
    • Component/s: Math
    • Labels:
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      Description

      This patch reduces the amount of computation required for LLR. It simplifies the math by canceling terms. In a microbenchmark we saw an 18% run time improvement.

      I couldn't seem to find the UI for uploading a patch file.

        Attachments

        1. MAHOUT-1257.patch
          2 kB
          Michael Sokolov

          Issue Links

          is superceded by

          Improvement - An improvement or enhancement to an existing feature or task. MAHOUT-1239 Standardize form of log-likelihood computation

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

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              • Assignee:
                Unassigned
                Reporter:
                sokolov Michael Sokolov
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                Dates

                • Created:
                  Updated:
                  Resolved: