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From "Grant Ingersoll (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAHOUT-881) Refactor TopItems to use Lucene's PriorityQueue and remove excessive sorting
Date Sat, 12 Nov 2011 08:10:51 GMT
Refactor TopItems to use Lucene's PriorityQueue and remove excessive sorting
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                 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


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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