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https://issues.apache.org/jira/browse/MAHOUT-1257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13864675#comment-13864675
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Mike Sokolov commented on MAHOUT-1257:
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That's a judgement call; the patch here still reduces the number of operations
from 11 to 9, so it is an improvement in that sense over M-1239.
> performance improvement to LogLikehood
> --------------------------------------
>
> Key: MAHOUT-1257
> URL: https://issues.apache.org/jira/browse/MAHOUT-1257
> Project: Mahout
> Issue Type: Improvement
> Components: Math
> Reporter: Mike Sokolov
> Fix For: Backlog
>
> Attachments: MAHOUT-1257.patch
>
>
> 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.
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