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https://issues.apache.org/jira/browse/MAHOUT-1255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13684717#comment-13684717
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Hudson commented on MAHOUT-1255:
--------------------------------
Integrated in Mahout-Quality #2087 (See
[https://builds.apache.org/job/Mahout-Quality/2087/])
MAHOUT-1255: Fix for weights in Multinomial sometimes overflowing in
BallKMeans (Revision 1493533)
Result = SUCCESS
dfilimon :
Files :
* /mahout/trunk/CHANGELOG
*
/mahout/trunk/core/src/main/java/org/apache/mahout/clustering/streaming/cluster/BallKMeans.java
> Change BallKMeans weighting to use log(weight)
> ----------------------------------------------
>
> Key: MAHOUT-1255
> URL: https://issues.apache.org/jira/browse/MAHOUT-1255
> Project: Mahout
> Issue Type: Improvement
> Affects Versions: 0.8
> Reporter: Dan Filimon
> Assignee: Dan Filimon
> Priority: Minor
> Fix For: 0.8
>
>
> Weirdness is happening in the reducer when doing k-means++ sampling by
> weights.
> Change from multiplying the probability with the weight to multiplying by 2 *
> log(weight).
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