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Posted to dev@mahout.apache.org by "Ted Dunning (JIRA)" <ji...@apache.org> on 2011/05/21 00:20:47 UTC
[jira] [Commented] (MAHOUT-153) Implement kmeans++ for initial
cluster selection in kmeans
[ https://issues.apache.org/jira/browse/MAHOUT-153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13037119#comment-13037119 ]
Ted Dunning commented on MAHOUT-153:
------------------------------------
Going twice!
Pallavi? Rohini?
Anybody else? Is this patch worth committing? k-means++ should be a substantial improvement for our k-means. But without somebody pushing, it can't happen.
> Implement kmeans++ for initial cluster selection in kmeans
> ----------------------------------------------------------
>
> Key: MAHOUT-153
> URL: https://issues.apache.org/jira/browse/MAHOUT-153
> Project: Mahout
> Issue Type: New Feature
> Components: Clustering
> Affects Versions: 0.2
> Environment: OS Independent
> Reporter: Panagiotis Papadimitriou
> Assignee: Ted Dunning
> Attachments: MAHOUT-153_RandomFarthest.patch, Mahout-153.patch, Mahout-153.patch, Mahout-153.patch
>
> Original Estimate: 336h
> Remaining Estimate: 336h
>
> The current implementation of k-means includes the following algorithms for initial cluster selection (seed selection): 1) random selection of k points, 2) use of canopy clusters.
> I plan to implement k-means++. The details of the algorithm are available here: http://www.stanford.edu/~darthur/kMeansPlusPlus.pdf.
> Design Outline: I will create an abstract class SeedGenerator and a subclass KMeansPlusPlusSeedGenerator. The existing class RandomSeedGenerator will become a subclass of SeedGenerator.
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