How does high dimensionality affect collaborative filtering?

Alexandros Nanopoulos Milos Radovanovic Mirjana Ivanovic How does high dimensionality affect collaborative filtering? 293-296 2009 RecSys http://doi.acm.org/10.1145/1639714.1639771 conf/recsys/2009 db/conf/recsys/recsys2009.html#NanopoulosRI09