Keyphrases
- recommender systems
- collaborative filtering
- personal information
- matrix factorization
- privacy preserving
- information overload
- implicit feedback
- user model
- user preferences
- private information
- privacy concerns
- information filtering
- security concerns
- privacy issues
- user modeling
- user profiles
- sensitive information
- personal data
- private data
- cold start problem
- privacy preserving data mining
- privacy enhancing
- cold start
- user modelling
- personal preferences
- recommendation quality
- legal issues
- privacy preservation
- privacy protection
- social networks
- user profiling
- data sparsity
- personalized recommendation
- sensitive data
- security issues
- location privacy
- statistical databases
- information loss
- smart card
- trust aware
- information retrieval