approximation algorithm for sparse representation.
Mashud HyderKaushik MahataPublished in: IEEE Trans. Signal Process. (2010)
Keyphrases
- sparse representation
- learning algorithm
- k means
- test images
- dictionary learning
- negative matrix factorization
- objective function
- dimensionality reduction
- image classification
- sparse coding
- sparse approximations
- neural network
- sparse coefficients
- sparse reconstruction
- random projections
- input data
- probabilistic model
- multiscale
- image processing