The Artificial Intelligence SE is now in private beta phase, and it looks like most questions asked there are on-topic here. There is already another SE with a large overlap, namely Data Science SE. What do you think of this new SE, and should we avoid another almost identical SE?
I think that this kind of issue is endemic to SO and will only increase as sites proliferate.
A proposal: there should be a proposal process where users can vote to merge sites, resulting in a permanent redirect.
Really, what's in a name? Cross Validation is an excellent name to catch the attention of anyone who's actually exercised curiosity + healthy skepticism about "smart algorithms" and so on, but inasmuch as it serves as a clue, it's an easy one for people to miss.