Github user hy2014 commented on the pull request:
https://github.com/apache/spark/pull/3720#issuecomment-93257338
hi, we use als example, but we found same data, same input arguments, but
output different result, spark 1.2.0 can result data we want, but spark 1.3.0
cannot return right data, it all return zero matrix in userFeature.
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