[GitHub] spark pull request: [SPARK-2308][MLLIB] Add Mini-Batch KMeans Clus...

[rnowling <gi...@git.apache.org>]

Github user rnowling commented on the pull request:

    https://github.com/apache/spark/pull/1248#issuecomment-53480546
  
    MiniBatch KMeans needs a sampling method that runs in O(k), where k is the number of data points to sample time.  Current Spark sampling methods run in O(n) time, where n is the number of data points in the RDD.  I'm closing this PR until a better sampling method is found.


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