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From "Edward J. Yoon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HAMA-821) K-Means writes only k records as a output
Date Tue, 26 Nov 2013 05:18:35 GMT

    [ https://issues.apache.org/jira/browse/HAMA-821?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13832326#comment-13832326
] 

Edward J. Yoon commented on HAMA-821:
-------------------------------------

Here's a documentation explaining 'how to run KMeans example' in 5 minutes - http://people.apache.org/~edwardyoon/kmeans.html

> K-Means writes only k records as a output
> -----------------------------------------
>
>                 Key: HAMA-821
>                 URL: https://issues.apache.org/jira/browse/HAMA-821
>             Project: Hama
>          Issue Type: Bug
>          Components: machine learning
>            Reporter: Edward J. Yoon
>            Assignee: Edward J. Yoon
>             Fix For: 0.7.0
>
>         Attachments: HAMA-821.patch
>
>
> KMeans writes only k records, because 276 line at KMeansBSP overwrites the value for
the key. I'm sure it was not intended..
> And, many people ask me about meaning of input and output of KMeans. We need to make
K-Means example output lines more readable like,
> {code}
> 13/11/25 17:34:04 INFO kmeans.KMeansBSP: Finished! Writing the results...
> [5.1, 3.5, 1.4, 0.2] belongs to cluster 2
> [4.9, 3.0, 1.4, 0.2] belongs to cluster 2
> [4.7, 3.2, 1.3, 0.2] belongs to cluster 2
> [4.6, 3.1, 1.5, 0.2] belongs to cluster 2
> [5.0, 3.6, 1.4, 0.2] belongs to cluster 2
> ....
> {code}



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