Github user tillrohrmann commented on the pull request: https://github.com/apache/flink/pull/1898#issuecomment-213434810 Thanks for your contribution @rawkintrevo. Good work. I had some minor inline comments. I'm mainly concerned about the efficiency of `multiRandomSplit` because it can construct some really long pipelines. I think we should also add online documentation for the `Splitter`. Otherwise people will just miss it. You can take a look at `docs/libs/ml/` and create a web page for the splitter. We could then create a site with tools from where we link to the `Splitter`, for example.
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