I will ask Judith. If someone knows, she is the One..!

]]>True. But I am curious if there is a definition of optimality for which it’s tractable. I mean, we know the minimax rates for posterior contractions (at least for regular cases), but this is a horse of a different colour. I wonder if anyone’s looked at it. Or, in fact, if it’s an unexciting question….

]]>Has there been any work done on optimal rates? Will it always be O(1/q) or is it possible to construct a higher order scheme using the same “replace the data with a summary” idea?

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