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Posted to dev@mahout.apache.org by "Vasil Vasilev (JIRA)" <ji...@apache.org> on 2011/03/21 09:34:08 UTC
[jira] [Commented] (MAHOUT-616) Cannot use
MahalanobisDistanceMeasure with Dirichlet clustering
[ https://issues.apache.org/jira/browse/MAHOUT-616?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13009049#comment-13009049 ]
Vasil Vasilev commented on MAHOUT-616:
--------------------------------------
Only the config method in DistanceMeasureCluster calls getMeasure().configure(job);
> Cannot use MahalanobisDistanceMeasure with Dirichlet clustering
> ---------------------------------------------------------------
>
> Key: MAHOUT-616
> URL: https://issues.apache.org/jira/browse/MAHOUT-616
> Project: Mahout
> Issue Type: Bug
> Components: Clustering
> Affects Versions: 0.5
> Reporter: Vasil Vasilev
> Assignee: Sean Owen
> Priority: Minor
> Fix For: 0.5
>
> Attachments: mahalanobis_fix.patch, mahalanobis_fix.patch
>
>
> When Dirichlet clustering is run with DistanceMeasureClusterDistribution and MahalanobisDistanceMeasure the configure method of the distance measure is not called. In this way the configuration data cannot be supplied to the distance measure. In addition there is a bug in the MahalanobisDistanceMeasure that does not take into account the matrix class
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