Aha! Thanks! I was only considering about computing the pair-wise similarity. Now I got it.
2012/5/9 Sebastian Schelter <[email protected]> > If you transpose the input, you would recommend users to items, not > items to users, thats the problem. > > --sebastian > > On 09.05.2012 16:41, 冯伟 wrote: > > I found that only item-based recommender is implemented in version-0.6. > > When I want to use the user-based recommender, all I need to do is to > > transpose the input, i.e., <uid, itemid, rating> ---> <itemid, uid, > > rating>，right? Is there any other differences between item-based and > > user-based approach, which is not noticed by me? > > > > -- Wei Feng
