A new approach to dictionary-based nonnegative matrix factorization.
Jeremy E. CohenNicolas GillisPublished in: EUSIPCO (2017)
Keyphrases
- nonnegative matrix factorization
- probabilistic latent semantic indexing
- negative matrix factorization
- active set
- matrix factorization
- data representation
- least squares
- nonnegative matrix
- spectral clustering
- principal component analysis
- objective function
- original data
- information retrieval
- document clustering
- sparsity constraints
- factor matrices
- semi supervised
- data sets