Keyphrases
- polarity classification
- positive or negative
- product reviews
- sentiment analysis
- opinion retrieval
- online product reviews
- sentiment classification
- opinion mining
- online reviews
- customer reviews
- positive and negative
- opinion summarization
- public opinion
- sentiment polarity
- product features
- information retrieval
- real world
- database
- sentence level
- expert systems
- web pages
- machine learning
- real time