The long tail of recommender systems and how to leverage it.

Yoon-Joo Park Alexander Tuzhilin The long tail of recommender systems and how to leverage it. 11-18 2008 RecSys http://doi.acm.org/10.1145/1454008.1454012 conf/recsys/2008 db/conf/recsys/recsys2008.html#ParkT08