On Tue, Feb 23, 2010 at 3:25 PM, Sean Owen <[email protected]> wrote: > Yes I think I understand what you're getting at and the examples. Loss > function here is just the 'penalty' for predicting a rating near to > those of dissimilar users and far from those of similar users? >
Yes. Exactly. > If I read correctly, you think that a 'weighted average' (with > negative weights in numerator and denominator...) plus > capping is an intellectually sound way of handling this situation. Exactly. And I think that the examples demonstrate reasonable behavior in a variety of regimes.
