becketqin commented on issue #8631: [FLINK-12745][ml] add sparse and dense vector class, and dense matrix class with basic operations. URL: https://github.com/apache/flink/pull/8631#issuecomment-522300748 @xuyang1706 Thanks for the performance comparison and for updating the patch. The patch LGTM. The newly added `VectorUtils` class has some inconsistent format in java doc. I will fix that when merge the code. @ex00 Do you have further comments? I'll merge the patch on Monday if there is no further concern. Thanks.
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