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From "Paritosh Ranjan (JIRA)" <j...@apache.org>
Subject [jira] [Issue Comment Edited] (MAHOUT-929) Refactor Clustering (Vector Classification) into a Separate Postprocess with Outlier Pruning
Date Thu, 03 May 2012 17:10:48 GMT

    [ https://issues.apache.org/jira/browse/MAHOUT-929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13267588#comment-13267588
] 

Paritosh Ranjan edited comment on MAHOUT-929 at 5/3/12 5:08 PM:
----------------------------------------------------------------

All issues other than MAHOUT-990 are fixed. There is no other patch to review. 

I have not closed this issue since MAHOUT-990 is a subtask of MAHOUT-933 which is linked to
this issue. Once we close MAHOUT-990. We will be done with all issues related to this refactoring.
                
      was (Author: paritoshranjan):
    All issues other than MAHOUT-990 are fixed. There is no other patch to review. 

I have not closed this issue since MAHOUT-930 is a subtask of MAHOUT-933 which is linked to
this issue. Once we close MAHOUT-930. We will be done with all issues related to this refactoring.
                  
> Refactor Clustering (Vector Classification) into a Separate Postprocess with Outlier
Pruning
> --------------------------------------------------------------------------------------------
>
>                 Key: MAHOUT-929
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-929
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Classification, Clustering
>    Affects Versions: 0.6
>            Reporter: Jeff Eastman
>            Assignee: Paritosh Ranjan
>             Fix For: 0.7
>
>         Attachments: Mahout-929, Mahout-929, Mahout-929, Mahout-929
>
>
> The current clustering drivers have a -cp option to produce clusteredPoints directory
containing the input vectors classified by the final clusters produced by the algorithm. These
options are redundantly implemented in those drivers.
> - Factor out & implement an independent post processor to perform the classification
step independently of the various clustering implementations.
> - Implement a pluggable outlier removal capability for this classifier. 
> - Consider building off of the ClusterClassifier & ClusterIterator ideas.

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