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https://issues.apache.org/jira/browse/MAHOUT-1251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on MAHOUT-1251 started by Sebastian Schelter.
> Optimize MinHashMapper
> ----------------------
>
> Key: MAHOUT-1251
> URL: https://issues.apache.org/jira/browse/MAHOUT-1251
> Project: Mahout
> Issue Type: Improvement
> Components: Clustering
> Reporter: Sebastian Schelter
> Assignee: Sebastian Schelter
> Fix For: 0.8
>
>
> Remove unnecessary actions from MinHashMapper:
> It does a unnecessary string comparison per non-zero element of each input
> vector and it unnecessarily clones the input vector for each keyGroup
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