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From "Pallavi Palleti (JIRA)" <>
Subject [jira] Updated: (MAHOUT-99) Improving speed of KMeans
Date Fri, 28 Nov 2008 13:05:44 GMT


Pallavi Palleti updated MAHOUT-99:

    Attachment: MAHOUT-99.patch

this patch takes care of issues with speed. Also, the issues with combiner runs zero or more
than once has been taken care.

> Improving speed of KMeans
> -------------------------
>                 Key: MAHOUT-99
>                 URL:
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Clustering
>            Reporter: Pallavi Palleti
>         Attachments: MAHOUT-99.patch
> Improved the speed of KMeans by passing only cluster ID from mapper to reducer. Previously,
whole Cluster Info as formatted s`tring was being sent.
> Also removed the implicit assumption of Combiner runs only once approach and the code
is modified accordingly so that it won't create a bug when combiner runs zero or more than

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