Communication-Based Book Recommendation in Computational Social Systems

Table 4

User collaborative filtering under different K values based on the trust relationship by the communication method.

K	Precision (%)	Recall (%)	Coverage (%)
5	10.11	20.29	39.49
10	11.12	25.30	26.62
20	12.17	26.35	22.12
40	10.70	21.12	20.30
80	10.21	21.50	20.01