Thanks for the push to really look closer. Turns out the key reversal I was doing in my code was somewhat randomizing things... everything working great now.
Sam On May 2, 2011, at 10:06 AM, Sean Owen wrote: > I don't see any thing about the (Mahout) code that would have any > randomness. Are you sure it's not coming from the other code? or some other > strange issue with systems in between or something? > > On Mon, May 2, 2011 at 5:27 PM, Sam Pullara <[email protected]> wrote: > >> Thanks for the reply Steven. Actually all the input is identical, the same >> data, the same request for recommendations for the same user. Sometimes it >> returns a set of results and sometimes it returns an empty list. >> Sam >> -- >> Nope, no randomness, the liklihood is that a recommendation cannot be made >> for the user you are making a request for. You could use the random >> recommender or just return the top 10 items from the dataset. >>
