Bag of Pursuits and Neural Gas for Improved Sparse Coding.
Kai LabuschErhardt BarthThomas MartinetzPublished in: COMPSTAT (2010)
Keyphrases
- sparse coding
- neural gas
- sparse representation
- natural images
- image classification
- self organizing maps
- linear combination
- unsupervised learning
- vector quantization
- generative model
- bag of words
- image representation
- cluster analysis
- color quantization
- high dimensional
- image patches
- reconstruction error
- feature space
- visual features
- supervised learning
- neural network
- visual words
- multiscale
- maximum likelihood
- dimensionality reduction
- object recognition
- clustering algorithm