Discriminative separable nonnegative matrix factorization by structured sparse regularization.
Shengzheng WangJing PengWei LiuPublished in: Signal Process. (2016)
Keyphrases
- nonnegative matrix factorization
- sparsity constraints
- low rank approximation
- probabilistic latent semantic indexing
- sparse non negative
- negative matrix factorization
- matrix factorization
- data representation
- least squares
- sparse representation
- semi supervised
- feature extraction
- spectral clustering
- principal component analysis
- high dimensional
- objective function
- sparse coding
- original data
- signal processing
- feature selection
- document clustering
- collaborative filtering