Dictionary Learning for the Almost-Linear Sparsity Regime.
Alexei NovikovStephen WhitePublished in: ALT (2023)
Keyphrases
- dictionary learning
- sparse representation
- sparse coding
- sparsity constraints
- sparse approximation
- face recognition
- image super resolution
- image classification
- image patches
- negative matrix factorization
- compressive sensing
- sparse codes
- group sparsity
- high dimensional data
- high dimensional
- object category recognition
- unsupervised learning
- signal processing
- dimensionality reduction
- neural network
- ground truth
- feature space
- action recognition
- natural images