Dictionary-Based Low-Rank Approximations and the Mixed Sparse Coding Problem.
Jeremy E. CohenPublished in: Frontiers Appl. Math. Stat. (2022)
Keyphrases
- sparse coding
- reconstruction error
- sparse representation
- subspace learning
- natural images
- linear combination
- unsupervised learning
- image classification
- image representation
- generative model
- image patches
- feature space
- low rank
- high dimensional
- higher order
- singular value decomposition
- visual words
- super resolution
- data sets
- pattern recognition
- kernel matrix
- learning algorithm