Research Article

Investigating the Temporal Effect of User Preferences with Application in Movie Recommendation

Table 4

Comparison of different recommendation models on MovieLens data set. For UOS, ; for SNBI, ; for MS-IPF, , , and ; for STeuP, , , , and . The length of recommendation list is .

Algorithm   HD Novelty Coverage

UCF0.07610.9399224.630.2854
UOS0.08390.8735268.100.1691
NBI0.10810.7724319.620.0873
SNBI0.11440.8382287.570.1353
IPF0.16490.8010281.110.1667
STeuP0.21470.7647275.180.1285