Itakura-Saito nonnegative matrix factorization with group sparsity.
Augustin LefèvreFrancis R. BachCédric FévottePublished in: ICASSP (2011)
Keyphrases
- nonnegative matrix factorization
- bregman divergences
- group sparsity
- low rank
- matrix factorization
- negative matrix factorization
- sparse coding
- dictionary learning
- sparse representation
- data representation
- least squares
- collaborative filtering
- spectral clustering
- missing data
- image classification
- natural images
- recommender systems
- objective function
- principal component analysis
- image representation
- feature space
- pattern recognition
- document clustering
- information theoretic
- data sets
- object recognition
- co occurrence