[jira] Created: (MAHOUT-416) Input format of Random Forest in Mahout 0.3 is N*M matrix. It doesn't take sparse matrix as an input.

["Karan Jindal (JIRA)" <ji...@apache.org>]

Input format of Random Forest in Mahout 0.3 is N*M matrix. It doesn't take sparse matrix as an input.
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                 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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