Modeling relationships at multiple scales to improve accuracy of large recommender systems.

Robert M. Bell Yehuda Koren Chris Volinsky Modeling relationships at multiple scales to improve accuracy of large recommender systems. 95-104 2007 conf/kdd/2007 KDD http://doi.acm.org/10.1145/1281192.1281206 db/conf/kdd/kdd2007.html#BellKV07