Keyphrases
- recommender systems
- collaborative filtering
- matrix factorization
- key issues
- user profiling
- information filtering
- cold start problem
- user profiles
- user preferences
- user model
- information overload
- user modeling
- cold start
- user interests
- user feedback
- content based filtering
- trust aware
- web pages
- virtual characters
- data sparsity
- personalized recommendation
- knowledge discovery and data mining
- multi agent systems