Identifiability in Exact Two-Layer Sparse Matrix Factorization.
Léon ZhengRémi GribonvalElisa RicciettiPublished in: CoRR (2021)
Keyphrases
- matrix factorization
- tensor factorization
- collaborative filtering
- low rank matrix
- sparse non negative
- low rank
- latent factors
- recommender systems
- missing data
- factorization methods
- negative matrix factorization
- nonnegative matrix factorization
- factor analysis
- data matrix
- variational bayesian
- data sparsity
- stochastic gradient descent
- implicit feedback
- high dimensional
- sparsity constraints
- sparse coding
- sparse matrix
- factorization method
- multiscale
- dictionary learning
- item recommendation