[GitHub] incubator-spark pull request: [Proposal] Adding sparse data suppor...

[sscdotopen]

Github user sscdotopen commented on the pull request:

    https://github.com/apache/incubator-spark/pull/575#issuecomment-34674441
  
    I think making making the heavyweight mahout-core a dependency just for 
access to the sparse vectors is no good idea. A better way would be to just 
depend on mahout-math and port the serialization code from VectorWritable.