Github user debasish83 commented on the pull request:
https://github.com/apache/spark/pull/5005#issuecomment-81917339
@mengxr cleaned up the QuadraticMinimizer from this PR and merge the
changes over here:
https://github.com/apache/spark/pull/3221
Once will decide on the final version of breeze.optimize.linear.NNLS for
ALS use-cases, I will open up a Breeze PR and add it there.
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