Feature enhancement of reverberant speech by distribution matching and non-negative matrix factorization.
Sami KeronenHeikki KallasjokiKalle J. PalomäkiGuy J. BrownJort F. GemmekePublished in: EURASIP J. Adv. Signal Process. (2015)
Keyphrases
- negative matrix factorization
- speech signal
- nonnegative matrix factorization
- matrix factorization
- principal component analysis
- document clustering
- speech recognition
- constrained least squares
- spectral clustering
- sparse representation
- feature vectors
- non stationary
- tensor factorization
- hidden markov models
- image processing
- dimensionality reduction
- text mining
- knn
- k means
- object recognition
- clustering algorithm