Keyphrases
- cold start
- collaborative filtering
- recommender systems
- cold start problem
- data sparsity
- prediction accuracy
- user ratings
- personalized recommendation
- matrix factorization
- user preferences
- implicit feedback
- recommendation quality
- tag recommendation
- data sparseness
- item based collaborative filtering
- recommendation algorithms
- recommendation systems
- user interests
- user model
- information overload
- learning to rank
- user experience