Complex NMF: A new sparse representation for acoustic signals.
Hirokazu KameokaNobutaka OnoKunio KashinoShigeki SagayamaPublished in: ICASSP (2009)
Keyphrases
- sparse representation
- negative matrix factorization
- dictionary learning
- sparse coding
- acoustic signals
- face recognition
- image classification
- nonnegative matrix factorization
- compressive sensing
- sparsity constraints
- image representation
- compressed sensing
- image patches
- signal processing
- subspace learning
- reconstruction error
- high dimensional data
- regularized least squares
- piecewise smooth
- sparse approximations
- basis vectors
- joint optimization
- probabilistic latent semantic analysis
- pattern recognition
- image processing
- sparse reconstruction
- sparse codes
- acoustic signal
- multiscale
- data analysis