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https://issues.apache.org/jira/browse/MAHOUT-881?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13153791#comment-13153791
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Sean Owen commented on MAHOUT-881:
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I'm referring to TopItemsTest and anything already committed. All of that is of
course useful.
Sketch out what kind of stats you'd like out of this (in another JIRA if you
like) and I'll implement it. More data is OK, just thought I might be able to
set up the API in a way that accommodates it all more easiliy.
> 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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