Minimax Lower Bounds for Kronecker-Structured Dictionary Learning.
Zahra ShakeriWaheed U. BajwaAnand D. SarwatePublished in: CoRR (2016)
Keyphrases
- dictionary learning
- lower bound
- sparse representation
- sparse coding
- upper bound
- worst case
- image super resolution
- objective function
- object category recognition
- optimal solution
- group sparsity
- dictionary learning for sparse
- probabilistic model
- sparse codes
- natural images
- image classification
- generative model
- data sets
- signal processing
- motion estimation
- training data