Novel Multidimensional Collaborative Filtering Algorithm Based on Improved Item Rating Prediction

Table 11

Information on the related context dimensions for the datasets.

DePaulMovie	Number	Users	Items	Ratings	Sparsity
		97	79	5043	0.3419
	Context dimension	Time	Location		Companion
		Weekday, weekend	Cinema, home		Alone, family, partner
TripAdvisor_v1	Number	Users	Items	Ratings	Sparsity
		1129	48	4669	0.9138
	Context dimension	USER_TIMEZONE	HOTEL_TIMEZONE		Trip type
		Eastern, central, pacific, mountain, HI, AK	Eastern, central, pacific, mountain		1, 2, 3, 4, 5