Sparsity level in a non-negative matrix factorization based speech strategy in cochlear implants.
Hongmei HuNasser MohammadihaJalil TaghiaArne LeijonMark E. LutmanShouyan WangPublished in: EUSIPCO (2012)
Keyphrases
- negative matrix factorization
- sparse representation
- sparsity constraints
- tensor factorization
- document clustering
- matrix factorization
- principal component analysis
- nonnegative matrix factorization
- speech recognition
- constrained least squares
- spectral clustering
- image classification
- signal processing
- sparse coding
- speech signal
- text mining
- association rules
- data mining
- data sets