An Implicit Wavelet Sparse Approximate Inverse Preconditioner.
Stuart C. HawkinsKe ChenPublished in: SIAM J. Sci. Comput. (2005)
Keyphrases
- wavelet transform
- high dimensional
- sparse data
- denoising
- multiscale
- compressive sensing
- wavelet coefficients
- multiresolution
- low frequency
- image compression
- wavelet decomposition
- wavelet domain
- sparse representation
- wavelet analysis
- power spectrum
- sparse matrix
- data sets
- exact solution
- sparse coding
- signal processing
- feature extraction