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