ex00 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-520487910 > Do you have any benchmark or performance tests? it would be helpful for understanding performance this logic I would like to compare old lineal algebra primitives (e.g. from https://github.com/apache/flink/tree/47db1ab7ce523390bd957380eea1f6153ffdc7c2/flink-libraries/flink-ml/src/main/scala/org/apache/flink/ml/math) and this implementation. Also I cannot find any discussion of design and use cases for classes. Do we have? and related to performance > Did you look linear algebra entities implementations from other libraries? I understand the risks to use other libraries in flink, but we can get well tested and performance-optimized implementation of vectors and matrix as an improvement .
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