A Bayesian approach to convolutive nonnegative matrix factorization for blind speech dereverberation.
Francisco Javier IbarrolaLeandro E. Di PersiaRuben D. SpiesPublished in: Signal Process. (2018)
Keyphrases
- nonnegative matrix factorization
- probabilistic latent semantic indexing
- data representation
- matrix factorization
- negative matrix factorization
- least squares
- spectral clustering
- nonnegative matrix
- principal component analysis
- active set
- original data
- document clustering
- sparsity constraints
- objective function
- metadata
- unsupervised learning
- information extraction
- recommender systems