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https://issues.apache.org/jira/browse/MAHOUT-887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13150567#comment-13150567
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Jeff Eastman commented on MAHOUT-887:
-------------------------------------
Take a look at MeanShiftCanopy. It implements a bottom-up, iterative,
agglomerative clustering algorithm based upon Mean Shift clustering. In it,
each input vector is converted to a canopy and T1/T2 distances are used to
merge adjacent canopies in each iteration. The centroid computation done at the
end of each iteration shifts the centers of the remaining canopies to their
mean positions, hence the name.
> Bottom Up Clustering
> --------------------
>
> Key: MAHOUT-887
> URL: https://issues.apache.org/jira/browse/MAHOUT-887
> Project: Mahout
> Issue Type: New Feature
> Components: Clustering
> Affects Versions: 0.6
> Environment: Linux Windows
> Reporter: Paritosh Ranjan
> Labels: features
> Fix For: 0.6
>
>
> Bottom up clustering is achieved by starting with small clusters/single
> points and then merging clusters recursively which are closer than a
> specified control constraint.
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