Research Article
Multiview Ensemble Method for Detecting Shilling Attacks in Collaborative Recommender Systems
Table 3
The features in popular item set.
| | Feature | Formula | Formula# |
| | Information entropy of URPTV in PIS (IE_URTPVP) | | | | Mean of URTPV in PIS (M_URTPVP) | | | | Variance of URTPV in PIS (V_URTPVP) | | | | Mean of user ratings in PIS (M_URP) | | | | Variance of user ratings in PIS (V_URP) | | |
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