Keyphrases
- group sparsity
- structured sparsity
- sparse coding
- dictionary learning
- low rank
- statistical learning
- sparse representation
- discriminative power
- learning problems
- image classification
- multiscale
- supervised learning
- regularization methods
- compressive sensing
- natural images
- image patches
- missing data
- variable selection
- learning models
- matrix factorization
- linear combination
- convex optimization problems
- group lasso