Time Filtering for Better Recommendations with Small and Sparse Rating Matrices.

Sergiu Gordea Markus Zanker Time Filtering for Better Recommendations with Small and Sparse Rating Matrices. 171-183 2007 conf/wise/2007 WISE http://dx.doi.org/10.1007/978-3-540-76993-4_15 db/conf/wise/wise2007.html#GordeaZ07