Keyphrases
- matrix factorization
- collaborative filtering
- recommender systems
- low rank
- missing data
- negative matrix factorization
- nonnegative matrix factorization
- factorization methods
- factor analysis
- data matrix
- data sparsity
- low dimensional
- latent space
- probabilistic matrix factorization
- variational bayesian
- feature space
- implicit feedback
- image classification
- latent factors
- latent factor models
- high dimensional
- item recommendation
- factor matrices
- personalized ranking
- data sets