Github user thvasilo commented on the issue: https://github.com/apache/flink/pull/2684 Hello @tillrohrmann I think you make some valid points. My original idea was to move completely to using `LabeledVector` to the de facto format for supervised learning problems and do away with `(Vector, Double)` tuples. What you suggest would add some extra flexibility though, esp. in terms of `(FeatureVector, LabelVector)` tuples which we have discussed in the context of ANNs. @tfournier314 Could you investigate the applicability of the scheme that Till recommended?
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