We have two relatively popular tags (53 questions) and (75 questions). However, I am not sure where the line between the two is drawn. For lg.learning wiki we have:

Tag refers to the research area of machine learning, and learning theory specifically (falling under arXiv's cs.LG - Learning), as opposed to the general practice of learning. This tag includes the theory of PAC learning, algorithmic learning theory, and computational aspects of Bayesian inference and graphical models. Questions about implementation issues and statistical properties of machine learning systems are more likely to be welcomed at the CrossValidated or MetaOptimize Q&A sites.

The questions must satisfy the usual scope requirements for cstheory as explained in the FAQ.

And for we have the wiki-excerpt:

Theoretical questions about Machine learning, especially Computational Learning Theory, including Algorithmic Learning Theory, PAC learning, and Bayesian Inference

and the whole wiki:

This tag should be used for theoretical questions related to Machine Learning (roughly falling under arXiv's cs.LG - Learning).

The question must satisfy the usual scope requirements for cstheory as explained in the FAQ.

You may also want to check AI Q&A site Meta Optimize which has a more general AI scope.

To me, it seems that we are using them as synonyms. Is this the case? If so, then which should be the main tag? lg.learning follows our ArXiv tag convention, but machine-learning is more popular and more likely to be searched for.

  • 1
    $\begingroup$ See meta.cstheory.stackexchange.com/questions/343/… $\endgroup$ Jul 19, 2012 at 22:50
  • $\begingroup$ Thanks @SureshVenkat but it seems that the issue was not resolved. If lg.learning is a more narrow tag, then shouldn't the wikis reflect that? I am just confused about how I should be using these tags. When would I use lg.learning but not machine-learning and vice-versa? $\endgroup$ Jul 19, 2012 at 23:31
  • 1
    $\begingroup$ I think machine-learning should be viewed as the same as stat.ML (and maybe that's what we should change it to). cs.LG is lg.learning-theory. If you look at the two categories on the arxiv, there's a reasonable difference between them $\endgroup$ Jul 19, 2012 at 23:34
  • $\begingroup$ Where does Gold-syle learning aka learning in the limit belong? $\endgroup$
    – Raphael
    Aug 12, 2012 at 8:59


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