Less Wrong is a community blog devoted to refining the art of human rationality. Please visit our About page for more information.

wnoise comments on What is Bayesianism? - Less Wrong

81 Post author: Kaj_Sotala 26 February 2010 07:43AM

You are viewing a comment permalink. View the original post to see all comments and the full post content.

Comments (211)

You are viewing a single comment's thread. Show more comments above.

Comment author: wnoise 27 February 2010 11:32:36PM *  1 point [-]

Well, I said shaded into the lines of decision theory...

Yes, it absolutely is dangerous, and thinking about it more I agree it should not be done this way. Probability penalties do not scale correctly with the data collected: they're essentially just a fixed offset. Modified utility of using a particular method really is different. If a method is unusable, we shouldn't use it, and methods that trade off accuracy for manageability should be decided at that level, once we can judge the accuracy -- not earlier.

EDIT: I suppose I was hoping for a valid way of justifying the fact that we throw out models that are too hard to use or analyze -- they never make it into our set of hypotheses in the first place. It's amazing how often conjugate priors "just happen" to be chosen...