On the Sample Complexity of Predictive Sparse Coding
Nishant A. MehtaAlexander G. GrayPublished in: CoRR (2012)
Keyphrases
- sparse coding
- dictionary learning
- natural images
- sparse representation
- linear combination
- unsupervised learning
- image classification
- generative model
- group sparsity
- single image super resolution
- feature space
- discriminative power
- image representation
- image patches
- sparse codes
- visual words
- person re identification
- small number
- semi supervised
- object recognition
- bag of words
- multiscale
- training data
- spatial pyramid matching
- image processing
- data sets