Multiview Ensemble Method for Detecting Shilling Attacks in Collaborative Recommender Systems

Table 8

The F1-measure of MV-EDM with untrained attacks.

Attack for training	Attacks for test
	Random attack	Average attack	AoP attack	Shifting attack	Power item attack	Power user attack	Love/hate attack	Reverse bandwagon attack
Random attack	0.97	0.90	0.37	0.88	0	0	0.88	0.90
Average attack	0.89	0.98	0.48	0.90	0	0	0.89	0.89
AoP attack	0.74	0.75	0.98	0.71	0.71	0	0.75	0.78
Shifting attack	0.89	0.92	0.44	0.97	0	0	0.90	0.93
Power item attack	0.69	0.69	0.68	0.67	0.98	0	0.70	0.69
Power user attack	0	0	0	0	0	0.98	0	0
Love/hate attack	0.79	0.77	0.41	0.76	0	0	0.97	0.71
Reverse bandwagon attack	0.98	0.97	0.31	0.97	0	0	0.66	0.98