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https://issues.apache.org/jira/browse/MAHOUT-1045?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13414123#comment-13414123
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Pat Ferrel commented on MAHOUT-1045:
------------------------------------
>From the inputs to the ClusterEvaluator class I'll try uploading the stuff
>below as an attachment to this issue:
conf.set(RepresentativePointsDriver.DISTANCE_MEASURE_KEY,
dm.getClass().getName());
---> org.apache.mahout.common.distance.CosineDistanceMeasure
I guess you can just make a note of this
conf.set(RepresentativePointsDriver.STATE_IN_KEY,
"tmp/representative/representativePoints-" + numIters);
---> representativePoints-5/*
ClusterEvaluator ce = new ClusterEvaluator(conf, finalClusters);
---> clusters-27-final/*
The final clusters dir of the k = 500 run.
it's an 22M tar.gz
> 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
>
>
> 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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