Sparse representation and reproduction of speech signals in complex Fourier basis.
Lee-Chung KwekAlan Wee-Chiat TanHeng-Siong LimCheah Heng TanKhaled A. AlaghbariPublished in: Int. J. Speech Technol. (2022)
Keyphrases
- sparse representation
- speech signal
- blind source separation
- dictionary learning
- sparse coding
- image classification
- compressive sensing
- sparse coefficients
- joint optimization
- random projections
- image patches
- image representation
- speech recognition
- compressed sensing
- hidden markov models
- high dimensional data
- face recognition
- dimensionality reduction
- automatic speech recognition
- signal processing
- negative matrix factorization
- feature space
- information retrieval
- neural network
- non stationary
- pattern recognition
- bayesian networks
- vocal tract
- sparsity constraints
- data mining