Efficient algorithms for multichannel extensions of Itakura-Saito nonnegative matrix factorization.
Hiroshi SawadaHirokazu KameokaShoko ArakiNaonori UedaPublished in: ICASSP (2012)
Keyphrases
- nonnegative matrix factorization
- bregman divergences
- relative entropy
- probabilistic latent semantic indexing
- negative matrix factorization
- data representation
- matrix factorization
- nonnegative matrix
- least squares
- principal component analysis
- spectral clustering
- document clustering
- data mining
- sparsity constraints
- objective function
- original data
- natural language processing
- kl divergence
- optical flow
- recommender systems
- feature extraction