The 2012 ACM RecSys Best Paper Award was given to:
Yue Shi, Alexandros Karatzoglou, Linas Baltrunas, Martha Larson, Nuria Oliver, and Alan Hanjalic for their paper entitled CLiMF: Learning to Maximize Reciprocal Rank with Collaborative Less-is-More Filtering.

The Best Short Paper Award was given to:
Alejandro Bellogin and Javier Parapar for Using Graph Partitioning Techniques for Neighbour Selection in User-Based Collaborative Filtering.

Honorable Mentions