... Balabanovic, and Y. Shoham, “Fab: Content-based Collaborative Recommendation,” Com-munications of the ACM, Vol. 40, No. 3, 1997, p.p. 66 -72.20. M. Pazzani, and D. Billsus, “Learning and Revising ... with 60 jazz songs per 100 recommended songs, the probabilistic parameter is expressed asP(likejgenre D jazz/ D 60 =100 D 0 :6 . MatchingThere are two types of matching approaches—exact matching and ... Lekakos et al.Table 1 Number of features and prediction accuracyCaseThreshold(movies) MAENumberof features1 2 0.9253 1 062 62 3 0.9253 1 062 03 5 0.9275 7 865 4 10 0.9555 54305 15 0.9780 3514The...