Double sparsity: learning sparse dictionaries for sparse signal approximation.
Ron RubinsteinMichael ZibulevskyMichael EladPublished in: IEEE Trans. Signal Process. (2010)
Keyphrases
- sparse representation
- dictionary learning
- compressive sensing
- high dimensional
- sparse approximations
- learning process
- sparse coding
- learning systems
- compressive sampling
- signal recovery
- reinforcement learning
- sparse data
- unsupervised learning
- neural network
- learning tasks
- compressed sensing
- sparsity constraints
- dimensionality reduction
- supervised learning