[jira] [Resolved] (MAHOUT-1045) Cluster evaluators returning bad results

["Grant Ingersoll (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAHOUT-1045?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Grant Ingersoll resolved MAHOUT-1045.
-------------------------------------

    Resolution: Fixed

Looks in and passing
                
> Cluster evaluators returning bad results
> ----------------------------------------
>
>                 Key: MAHOUT-1045
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1045
>             Project: Mahout
>          Issue Type: Bug
>          Components: Clustering
>    Affects Versions: 0.6, 0.7, 0.8
>         Environment: Several environments and data sets
>            Reporter: Pat Ferrel
>             Fix For: 0.8
>
>         Attachments: first-time-density-nan.txt, MAHOUT-1045.patch, MAHOUT-1045.patch, MAHOUT-1045.patch, MAHOUT-1045.patch
>
>
> With real world crawl data the Intra-cluster density from ClusterEvaluator is almost always NaN. The CDbw inter-cluster density is almost always 0. I have also seen several cases where CDbw fails to return any results but have not tracked down why yet.
> I have sent a link to an 8G data set that reproduces these errors to Jeff Eastman.

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