I found in this question:

Which Stack Exchange website for machine learning and computational algorithms?

When trying to ask a Machine learning question it is not entirely clear where to ask it. It can be theoretical (use TCS) or practical (Cross-Validated or Data Science). It seems like a mess to me!

Would it be appropriate to propose a new machine learning site at Area 51?

Have there been other spin-off sites in the past?

  • 3
    There is already an ai.stackexchange.com, I think it would be better if it would grow first.
    – peterh
    May 3, 2017 at 4:26
  • 1
    I wholeheartedly agree with the above comment, but, you know, there's only one way to find out.
    – Jason C
    May 3, 2017 at 5:43

1 Answer 1


This has been tried a few times: 1, 2.
These proposals for a Machine Learning SE went into private beta, but did not live beyond that. I participated in one of these. When that particular proposal was closed, the questions were migrated to Cross Validated.

It appears that Machine Learning is just too specialized to make a viable Stack Exchange site.

Fortunately, most machine learning questions can be asked on Cross Validated or Artificial Intelligence.
As always, check their Help Center before posting, to make sure that your question is on-topic on the chosen site.

  • 1
    To add to the list, Data Science also appears to be a popular destination for implementation questions about machine learning. I kinda wish AI.SE would allow implementation questions as well, so that one site could host design, implementation, and conceptual questions. May 3, 2017 at 14:20

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