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https://issues.apache.org/jira/browse/MAHOUT-763?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13066632#comment-13066632
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Grant Ingersoll commented on MAHOUT-763:
----------------------------------------
+1
> Map-Side Distance Comparison
> ----------------------------
>
> Key: MAHOUT-763
> URL: https://issues.apache.org/jira/browse/MAHOUT-763
> Project: Mahout
> Issue Type: New Feature
> Reporter: Grant Ingersoll
> Assignee: Grant Ingersoll
> Priority: Minor
> Fix For: 0.6
>
> Attachments: MAHOUT-763.patch, MAHOUT-763.patch, MAHOUT-763.patch,
> MAHOUT-763.patch, SeedVectorUtil.patch
>
>
> KMeans currently on the map-side calculates the distance between a set of
> seeds and all other vectors. It would be handy to have a generalization of
> this that, given a set of vectors that fits in memory (the seeds) and other
> points, emit <seed id, other id, distance> according to the distance measure.
> This is similar to the RowSimilarityJob, but much simpler and not as general
> purpose.
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