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COFI RANK - Maximum Margin Matrix Factorization for Collaborative Ranking
Markus Weimer · Alexandros Karatzoglou · Quoc V Le · Alexander Smola

Tue Dec 4th 09:50 -- 10:00 AM @ None

In this paper, we consider collaborative filtering as a ranking problem. We present a method which uses Maximum Margin Matrix Factorization and optimizes ranking instead of rating. We use structured output prediction to optimize for specific non-uniform ranking scores. Experimental results show that our method gives very good ranking scores and scales well on collaborative filtering tasks.

Author Information

Markus Weimer (Microsoft)
Alexandros Karatzoglou (Telefonica Research)
Quoc V Le (Stanford)
Alex Smola (Amazon - We are hiring!)

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