And if you want to see more about recommendation using side data as well as interaction data, the best reference I know of is Menon and Elkan's recent paper:
http://arxiv.org/abs/1006.2156 On Thu, Sep 30, 2010 at 4:45 PM, Sebastian Schelter <[email protected]> wrote: > If you just wanna know more about the theory behind Collaborative > Filtering and how implicit "features" can be dug out of the rating data, > I'd point you to "Matrix factorization techniques for Recommender > Systems" (http://www2.research.att.com/~volinsky/papers/ieeecomputer.pdf). > > --sebastian >
