Keyphrases
- matrix factorization
- tensor factorization
- collaborative filtering
- low rank
- missing data
- recommender systems
- negative matrix factorization
- nonnegative matrix factorization
- latent factors
- factorization methods
- real valued
- sparse representation
- stochastic gradient descent
- high dimensional
- sparsity constraints
- data matrix
- sparse coding
- data sparsity
- boolean functions
- dimensionality reduction
- pairwise