Keyphrases
- implicit feedback
- probabilistic matrix factorization
- collaborative filtering
- pairwise
- matrix factorization
- recommender systems
- explicit feedback
- personalized ranking
- similarity measure
- data sparsity
- semi supervised
- personalized recommendation
- loss function
- cold start
- user preferences
- item recommendation
- recommendation systems
- implicit relevance feedback
- information retrieval
- learning to rank
- user ratings