Resolution Limits of Sparse Coding in High Dimensions.
Alyson K. FletcherSundeep RanganVivek K. GoyalPublished in: NIPS (2008)
Keyphrases
- high dimensions
- sparse coding
- high dimensional
- sparse representation
- high dimensional data
- dictionary learning
- natural images
- image classification
- linear combination
- high dimensional spaces
- image patches
- unsupervised learning
- feature space
- image representation
- low dimensional
- high resolution
- poor quality
- data sets
- sparse codes
- low resolution
- generative model
- dimensionality reduction
- visual words
- multiscale
- high dimensionality
- data points
- higher order
- nearest neighbor
- machine learning
- similarity search
- test images
- object recognition
- feature extraction