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https://issues.apache.org/jira/browse/SPARK-2308?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14057038#comment-14057038
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Xiangrui Meng commented on SPARK-2308:
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There were some work on finding a coreset for k-means, e.g., 
http://dl.acm.org/citation.cfm?id=1007400 . But I don't know if there are 
implementations. Since scikit-learn has MiniBatchKMeans implemented, could you 
test it on some datasets with small clusters, for example, four clusters with 
size ratio 100:10:1:1 and see how it performs?

> Add KMeans MiniBatch clustering algorithm to MLlib
> --------------------------------------------------
>
>                 Key: SPARK-2308
>                 URL: https://issues.apache.org/jira/browse/SPARK-2308
>             Project: Spark
>          Issue Type: New Feature
>          Components: MLlib
>            Reporter: RJ Nowling
>            Priority: Minor
>
> Mini-batch is a version of KMeans that uses a randomly-sampled subset of the 
> data points in each iteration instead of the full set of data points, 
> improving performance (and in some cases, accuracy).  The mini-batch version 
> is compatible with the KMeans|| initialization algorithm currently 
> implemented in MLlib.
> I suggest adding KMeans Mini-batch as an alternative.
> I'd like this to be assigned to me.



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