Keyphrases
- sentiment analysis
- feature representation
- decision model
- decision problems
- opinion mining
- decision making
- text classification
- sentiment classification
- decision makers
- feature extraction
- sentence level
- text mining
- face recognition
- low dimensional
- feature set
- natural language processing
- product reviews
- sparse representation
- decision theory
- online reviews
- feature descriptors
- dimensionality reduction
- product features
- sentiment lexicon