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https://issues.apache.org/jira/browse/MAHOUT-881?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13153784#comment-13153784
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Grant Ingersoll commented on MAHOUT-881:
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bq. I think the tests should at least be committed. I'd also like to make some
1-liner improvements here that are obvious, if tiny, wins.
Were you referring to the tests already committed? Also, I'd like to see
something like the LoadEvaluationRunner in, but an earlier comment suggested
not changing the AbstractDiffRecommenderEvaluator. Sean, do you have other
suggestions for getting those stats out?
> Refactor TopItems to use Lucene's PriorityQueue and remove excessive sorting
> ----------------------------------------------------------------------------
>
> Key: MAHOUT-881
> URL: https://issues.apache.org/jira/browse/MAHOUT-881
> Project: Mahout
> Issue Type: Improvement
> Affects Versions: 0.6
> Reporter: Grant Ingersoll
> Assignee: Grant Ingersoll
> Priority: Minor
> Attachments: Call_Tree.html, Call_Tree_2.html, MAHOUT-881.patch,
> MAHOUT-881.patch, MAHOUT-881.patch
>
>
> TopItems.getTop*() all do a fair number of excessive operations that can be
> replaced by switching to using Lucene's PriorityQueue implementation, which
> is more efficient and faster than Java's built in PQ implementation.
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