Github user junwucs commented on the pull request: https://github.com/apache/flink/pull/479#issuecomment-78766228 Hi, @tillrohrmann, it's a great job! I am interested in ALS implementation and preparing to use it in our work. Recently I worked on branch of https://github.com/tillrohrmann/flink-perf and meet some tricky bugs unsolved, such as "org.apache.flink.api.common.functions.InvalidTypesException: Could not convert GenericArrayType to Class". So I found this new branch and hope your work can help me, thanks a lot!
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