Table 1 Statistics of the three Datasets

From: Extract Implicit Semantic Friends and Their Influences from Bipartite Network for Social Recommendation

Datasets	User	Item	Ratings	Social Links	Density (ratings) (%)	Density (social) (%)
Film Trust	1508	2071	1853	1.136	0.001	0.016
Ciao	1508	2,0715	111,853	0.036	0.001	0.016
Epinions	18,088	20,718	355,853	0.0037	0.001	0.016

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