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https://issues.apache.org/jira/browse/MAHOUT-882?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13149082#comment-13149082
]
Hudson commented on MAHOUT-882:
-------------------------------
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
> TopItems.getTopUsers ignores rescoring
> --------------------------------------
>
> Key: MAHOUT-882
> URL: https://issues.apache.org/jira/browse/MAHOUT-882
> Project: Mahout
> Issue Type: Bug
> Reporter: Grant Ingersoll
> Assignee: Grant Ingersoll
> Priority: Minor
> Fix For: 0.6
>
>
> I believe TopUsers.getTopUsers() is not properly handling the
> rescoredSimilarity:
> {code}
> TopItems.getTopUsers:
> double rescoredSimilarity = rescorer == null ? similarity :
> rescorer.rescore(userID, similarity);
> if (!Double.isNaN(rescoredSimilarity) && (!full || rescoredSimilarity >
> lowestTopValue)) {
> topUsers.add(new SimilarUser(userID, similarity));
> {code}
> It is checking rescoredSimilarity for everything, but then not passing it in
> like getTopItems does.
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