Keyphrases
- recommender systems
- collaborative filtering
- matrix factorization
- user preferences
- cold start problem
- trust aware
- information filtering
- information overload
- user modeling
- content based filtering
- machine learning
- recommendation quality
- user profiling
- collaborative filtering recommender systems
- databases
- active user
- data sparsity
- implicit feedback
- personalized recommendation
- user interests
- prediction accuracy
- real world