Models Andmethods for Forecasting Recommendations for Collaborative Recommender Systems Journal title: Vìsnik Nacìonalʹnogo unìversitetu "Lʹvìvsʹka polìtehnìka". Serìâ Ìnformacìjnì sistemi ta merežì Authors: Mykhaylo Lobur, Yuriy Stekh Subject(s):