Keyphrases
- matrix factorization
- collaborative filtering
- low rank
- missing data
- negative matrix factorization
- recommender systems
- factorization methods
- closed form
- nonnegative matrix factorization
- data sparsity
- variational bayesian
- factor analysis
- worst case
- personalized ranking
- data matrix
- item recommendation
- missing values
- latent factors
- low rank matrix
- central limit theorem
- tensor factorization
- closed form solutions
- linear combination