Fast greedy algorithms for dictionary selection with generalized sparsity constraints.
Kaito FujiiTasuku SomaPublished in: CoRR (2018)
Keyphrases
- greedy algorithms
- sparsity constraints
- greedy algorithm
- sparse representation
- dictionary learning
- search algorithm
- negative matrix factorization
- knapsack problem
- sparse coding
- image representation
- nonnegative matrix factorization
- computer vision
- text classification
- worst case
- information extraction
- pattern recognition
- multiscale
- image segmentation
- feature selection