Dynamic sparse coding for sparse time-series modeling via first-order smooth optimization.
Minyoung KimPublished in: Appl. Intell. (2018)
Keyphrases
- sparse coding
- dictionary learning
- sparse representation
- natural images
- image classification
- alternating optimization
- linear combination
- generative model
- unsupervised learning
- norm minimization
- group sparsity
- sparse codes
- sparsity constraints
- image representation
- higher order
- object category recognition
- visual words
- high dimensional
- feature space
- basis vectors
- image patches
- sparse approximation
- image segmentation
- compressive sensing
- dimensionality reduction
- object recognition