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https://issues.apache.org/jira/browse/MAHOUT-416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12987028#action_12987028
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Sean Owen commented on MAHOUT-416:
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Can you be more specific about the change you'd like to see? Ideally, submit a
patch.
> Input format of Random Forest in Mahout 0.3 is N*M matrix. It doesn't take
> sparse matrix as an input.
> -----------------------------------------------------------------------------------------------------
>
> Key: MAHOUT-416
> URL: https://issues.apache.org/jira/browse/MAHOUT-416
> Project: Mahout
> Issue Type: New Feature
> Components: Classification
> Affects Versions: 0.3
> Reporter: Karan Jindal
>
> Input format of Random Forest in Mahout 0.3 is N*M matrix. It doesn't take
> sparse matrix as an input.
> After converting sparse matrix into non-sparse matrix the size of file grow
> exponentially.
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