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Posted to dev@mahout.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2010/09/24 13:44:34 UTC
[jira] Resolved: (MAHOUT-236) Cluster Evaluation Tools
[ https://issues.apache.org/jira/browse/MAHOUT-236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean Owen resolved MAHOUT-236.
------------------------------
Fix Version/s: 0.5
(was: 0.4)
Resolution: Fixed
If I read this right, Jeff, you're done here? at least for 0.4 purposes?
> Cluster Evaluation Tools
> ------------------------
>
> Key: MAHOUT-236
> URL: https://issues.apache.org/jira/browse/MAHOUT-236
> Project: Mahout
> Issue Type: New Feature
> Components: Clustering
> Reporter: Grant Ingersoll
> Assignee: Jeff Eastman
> Fix For: 0.5
>
> Attachments: MAHOUT-236.patch, MAHOUT-236.patch, MAHOUT-236.patch, MAHOUT-236.patch, MAHOUT-236.patch
>
>
> Per http://www.lucidimagination.com/search/document/10b562f10288993c/validating_clustering_output#9d3f6a55f4a91cb6, it would be great to have some utilities to help evaluate the effectiveness of clustering.
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Re: [jira] Resolved: (MAHOUT-236) Cluster Evaluation Tools
Posted by Jeff Eastman <jd...@windwardsolutions.com>.
Yes, well, almost. I'm refactoring the CDbw implementation to separate
the representativePoints extraction so multiple evaluators can be used
with a tractable set of points for each cluster. I'm adding a new
ClusterEvaluator that uses the same code as in "Mahout in Action" for
inter-cluster density and, since intra-cluster density code is not shown
in the book, my crack at it over the representative points. Since that
set is reasonably sized, it can all be done in memory. I will commit
that today.
On 9/24/10 7:44 AM, Sean Owen (JIRA) wrote:
> [ https://issues.apache.org/jira/browse/MAHOUT-236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
>
> Sean Owen resolved MAHOUT-236.
> ------------------------------
>
> Fix Version/s: 0.5
> (was: 0.4)
> Resolution: Fixed
>
> If I read this right, Jeff, you're done here? at least for 0.4 purposes?
>
>> Cluster Evaluation Tools
>> ------------------------
>>
>> Key: MAHOUT-236
>> URL: https://issues.apache.org/jira/browse/MAHOUT-236
>> Project: Mahout
>> Issue Type: New Feature
>> Components: Clustering
>> Reporter: Grant Ingersoll
>> Assignee: Jeff Eastman
>> Fix For: 0.5
>>
>> Attachments: MAHOUT-236.patch, MAHOUT-236.patch, MAHOUT-236.patch, MAHOUT-236.patch, MAHOUT-236.patch
>>
>>
>> Per http://www.lucidimagination.com/search/document/10b562f10288993c/validating_clustering_output#9d3f6a55f4a91cb6, it would be great to have some utilities to help evaluate the effectiveness of clustering.