Keyphrases
- image classification
- image representation
- feature extraction
- image features
- bag of words
- electronic commerce
- visual features
- multi label
- visual words
- trading systems
- trading strategies
- financial markets
- class specific
- market data
- stock exchange
- visual categorization
- codebook generation
- bag of features
- sparse coding
- sparse representation
- electricity markets
- trading agents
- feature space
- information systems