Bayesian sparsity and class sparsity priors for dictionary learning and coding.
Alberto BocchinfusoDaniela CalvettiErkki SomersaloPublished in: CoRR (2023)
Keyphrases
- sparse representation
- dictionary learning
- sparsity constraints
- sparse coding
- class specific
- image classification
- face recognition
- image representation
- compressive sensing
- sparse codes
- prior probabilities
- object category recognition
- group sparsity
- sparse approximation
- negative matrix factorization
- image patches
- nonnegative matrix factorization
- dimensionality reduction
- active learning
- test images
- natural images
- signal processing
- efficient optimization
- high dimensional
- pairwise
- feature extraction