Effect of Top-Down Connections in Hierarchical Sparse Coding.
Victor BoutinAngelo FranciosiniFranck RuffierLaurent PerrinetPublished in: Neural Comput. (2020)
Keyphrases
- sparse coding
- dictionary learning
- sparse representation
- unsupervised learning
- natural images
- image classification
- linear combination
- discriminative power
- generative model
- image representation
- group sparsity
- deep belief networks
- image patches
- person re identification
- discriminative dictionary
- object category recognition
- feature space
- single image super resolution
- data sets
- denoising
- high dimensional
- sparse codes
- visual words
- spatial pyramid matching
- data points
- bayesian networks