I think he's getting at what I was trying to get at with my music example. A classical music fan, who knows nothing of rock music, will rate lots of classical music and tend to not rate other things voluntarily. Some will be rated high and some low, but they'll all be classical and fairly related. So you can argue a negative rating often indicates more positive relationship than none at all -- the fact that the user even knew about some classical music to rate it negatively is significant.
So I would also not treat that as stuff to filter or even the "opposite" of positive ratings. 2010/4/28 Tolga Oral <[email protected]>: > Ted, I am not sure if I follow what you mean here: > >> This is also very dangerous because negative ratings often correlated > much >> more tightly with what people like than with what they don't like.
