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https://issues.apache.org/jira/browse/MAHOUT-1224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13662088#comment-13662088
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Dan Filimon commented on MAHOUT-1224:
-------------------------------------
Patch: https://reviews.apache.org/r/11243/
> Add the option of running a StreamingKMeans pass in the Reducer before
> BallKMeans
> ---------------------------------------------------------------------------------
>
> Key: MAHOUT-1224
> URL: https://issues.apache.org/jira/browse/MAHOUT-1224
> Project: Mahout
> Issue Type: New Feature
> Components: Clustering
> Affects Versions: 0.8
> Reporter: Dan Filimon
>
> Sometimes, the number of points passed to the reducer from the mappers in the
> StreamingKMeansDriver job is too large to fit into memory.
> In that case, applying another StreamingKMeans pass can collapse the mapper
> intermediate clusters to a more manageable size to be clustered.
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