Research Article
Multiview Ensemble Method for Detecting Shilling Attacks in Collaborative Recommender Systems
Table 4
The features in novelty item set.
| | Feature | Formula | |
| | Information entropy of URTPV in NIS (IE_URTPVN) | | | | Mean of URTPV in NIS (M_URTPVN) | | | | Variance of URTPV in NIS (V_URTPVN) | | | | Mean of user ratings in NIS (M_URN) | | | | Variance of user ratings in NIS (V_URN) | | |
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