Minimax lower bounds for Kronecker-structured dictionary learning.
Zahra ShakeriWaheed Uz Zaman BajwaAnand D. SarwatePublished in: ISIT (2016)
Keyphrases
- dictionary learning
- lower bound
- sparse representation
- sparse coding
- worst case
- upper bound
- image super resolution
- group sparsity
- object category recognition
- objective function
- feature selection
- optimal solution
- image classification
- dictionary learning for sparse
- data sets
- sparse codes
- high dimensional data
- image representation
- unsupervised learning
- small number
- data analysis
- multiscale
- computer vision