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Posted to dev@mahout.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2009/12/11 21:44:18 UTC

[jira] Commented: (MAHOUT-61) Text problem matrix builder

    [ https://issues.apache.org/jira/browse/MAHOUT-61?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12789516#action_12789516 ] 

Sean Owen commented on MAHOUT-61:
---------------------------------

Same, is this still relevant? Looks kind of MAHOUT-116 which Ted said has been superseded, and related MAHOUT-19 seems defunct.

> Text problem matrix builder 
> ----------------------------
>
>                 Key: MAHOUT-61
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-61
>             Project: Mahout
>          Issue Type: New Feature
>            Reporter: Karl Wettin
>            Assignee: Karl Wettin
>            Priority: Minor
>         Attachments: MAHOUT-61.txt, MAHOUT-61.txt, MAHOUT-61.txt
>
>
> A set of classes that builds matrices from text.
> Currently the API consists of TokenMatrixBuilder and TokenInstanceBuilder. Should be thread safe.
> PostReader imports 20news-bydate. This takes several GB heap. It would be nice to bounce the data via JDBM or perhaps using the PersistentHashMap in MAHOUT-19.

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