Keyphrases
- matrix factorization
- collaborative filtering
- factorization methods
- low rank
- missing data
- negative matrix factorization
- recommender systems
- online learning
- nonnegative matrix factorization
- stochastic gradient descent
- data sparsity
- variational bayesian
- data matrix
- probabilistic matrix factorization
- factor analysis
- implicit feedback
- support vector
- personalized ranking
- data sets