Keyphrases
- matrix factorization
- collaborative filtering
- recommender systems
- factorization methods
- low rank
- missing data
- factor analysis
- negative matrix factorization
- stochastic gradient descent
- personalized ranking
- data matrix
- data sparsity
- latent factors
- variational bayesian
- face recognition
- nonnegative matrix factorization
- probabilistic matrix factorization
- item recommendation