Some machine learning methods try to transform the input space so that it can split with a straight line. 
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Yeah basic class of tricks in linear algebra (eg project to subspaces spanned by subset of eigenvectors), conformal geometry etc
End of conversation
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My only caution is to make sure that users of maps are aware that strategic decisions that are complex in other coordinate schemes are rendered as trivial in the presented coordinate scheme. Then, personally, I'd be tempted to mention the tiny-itsy bit I understand of Godel.
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$0.02: all maps are opinionated, a good one is honest and forthright about it
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