Filler Item Strategies for Shilling Attacks against Recommender Systems.
Sanjog RayAmbuj MahantiPublished in: HICSS (2009)
Keyphrases
- recommender systems
- user preferences
- cold start problem
- data sparsity
- product recommendation
- collaborative filtering
- injection attacks
- personalized recommendation
- cold start
- attack detection
- collaborative filtering algorithms
- matrix factorization
- recommendation algorithms
- item recommendation
- hybrid recommendation
- user ratings
- item based collaborative filtering
- countermeasures
- active user
- information overload
- website
- latent factor models
- making recommendations
- recommendation systems
- personal preferences
- optimal strategy
- malicious attacks
- user similarity
- security threats
- online auctions
- security vulnerabilities
- rating prediction
- malicious users
- user profiling
- watermarking technique
- trust aware
- watermarking scheme
- information retrieval