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https://issues.apache.org/jira/browse/MAHOUT-881?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13149081#comment-13149081
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Hudson commented on MAHOUT-881:
-------------------------------
Integrated in Mahout-Quality #1171 (See
[https://builds.apache.org/job/Mahout-Quality/1171/])
MAHOUT-882 Actually used rescored value in one TopItems method. Also, fix
SimilarUser issue along the way from MAHOUT-881
srowen : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1201248
Files :
*
/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/impl/recommender/SimilarUser.java
*
/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/impl/recommender/TopItems.java
*
/mahout/trunk/core/src/test/java/org/apache/mahout/cf/taste/impl/recommender/GenericUserBasedRecommenderTest.java
> 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: 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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