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https://issues.apache.org/jira/browse/MAHOUT-1206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13651369#comment-13651369
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Ted Dunning commented on MAHOUT-1206:
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Do you know of scalable algorithms for these other algorithms?
Is there a demonstrated need? Who will maintain the implementations?
> Add density-based clustering algorithms to mahout
> -------------------------------------------------
>
> Key: MAHOUT-1206
> URL: https://issues.apache.org/jira/browse/MAHOUT-1206
> Project: Mahout
> Issue Type: Improvement
> Reporter: Yexi Jiang
> Labels: clustering
>
> The clustering algorithms (kmeans, fuzzy kmeans, dirichlet clustering, and
> spectral cluster) clustering data by assuming that the data can be clustered
> into the regular hyper sphere or ellipsoid. However, in practical, not all
> the data can be clustered in this way.
> To enable the data to be clustered in arbitrary shapes, clustering algorithms
> like DBSCAN, BIRCH, CLARANCE
> (http://en.wikipedia.org/wiki/Cluster_analysis#Density-based_clustering) are
> proposed.
> It is better that we can implement one or some of these clustering algorithm
> to enrich the clustering library.
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