Detection Of Shilling Attack In Collaborative Filtering Recommender System By Pca And Data Complexity.
Fei ZhangZi-Jun DengZhi-Min HeXiao-Chuan LinLi-Li SunPublished in: ICMLC (2018)
Keyphrases
- collaborative filtering
- data complexity
- recommender systems
- product recommendation
- data sparsity
- collaborative filtering algorithms
- expressive power
- matrix factorization
- query answering
- principal component analysis
- query evaluation
- lower complexity
- cold start problem
- user preferences
- conjunctive queries
- recommendation quality
- np complete
- cold start
- personalized recommendation
- online dating
- user profiles
- learning algorithm
- recommendation systems
- exptime complete
- double exponential
- query complexity
- implicit feedback
- schema mappings
- transfer learning
- knowledge representation
- metadata