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Posted to dev@mahout.apache.org by "Hudson (Commented) (JIRA)" <ji...@apache.org> on 2012/01/02 19:56:30 UTC

[jira] [Commented] (MAHOUT-904) SplitInput should support randomizing the input

    [ https://issues.apache.org/jira/browse/MAHOUT-904?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13178509#comment-13178509 ] 

Hudson commented on MAHOUT-904:
-------------------------------

Integrated in Mahout-Quality #1287 (See [https://builds.apache.org/job/Mahout-Quality/1287/])
    MAHOUT-904: Add randomization to split input

gsingers : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1226475
Files : 
* /mahout/trunk/core/src/main/java/org/apache/mahout/common/AbstractJob.java
* /mahout/trunk/examples/bin/asf-email-examples.sh
* /mahout/trunk/examples/src/main/java/org/apache/mahout/classifier/sgd/TestASFEmail.java
* /mahout/trunk/examples/src/main/java/org/apache/mahout/classifier/sgd/TrainASFEmail.java
* /mahout/trunk/integration/src/main/java/org/apache/mahout/utils/SplitInput.java
* /mahout/trunk/integration/src/main/java/org/apache/mahout/utils/SplitInputJob.java
* /mahout/trunk/integration/src/test/java/org/apache/mahout/utils/SplitInputTest.java

                
> SplitInput should support randomizing the input
> -----------------------------------------------
>
>                 Key: MAHOUT-904
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-904
>             Project: Mahout
>          Issue Type: Improvement
>            Reporter: Grant Ingersoll
>            Assignee: Raphael Cendrillon
>              Labels: MAHOUT_INTRO_CONTRIBUTE
>             Fix For: 0.6
>
>         Attachments: MAHOUT-904.patch, MAHOUT-904.patch, MAHOUT-904.patch, MAHOUT-904.patch, MAHOUT-904.patch, MAHOUT-904.patch, MAHOUT-904.patch, MAHOUT-904.patch, MAHOUT-904.patch
>
>
> For some learning tasks, we need the input to be randomized (SGD) instead of blocks of labels all at once.  SplitInput is a useful tool for setting up train/test files but it currently doesn't support randomizing the input.

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