Keyphrases
- matrix factorization
- collaborative filtering
- recommender systems
- low rank
- missing data
- factorization methods
- tensor factorization
- factor analysis
- data matrix
- negative matrix factorization
- nonnegative matrix factorization
- variational bayesian
- data sparsity
- implicit feedback
- stochastic gradient descent
- item recommendation
- binary matrix
- probabilistic matrix factorization
- personalized ranking