Keyphrases
- sentiment analysis
- opinion mining
- sentiment classification
- text classification
- text mining
- sentence level
- opinion retrieval
- multi aspect
- natural language processing
- product reviews
- text documents
- sentiment lexicon
- online reviews
- user generated
- retrieval systems
- web documents
- document collections
- information retrieval systems
- document retrieval
- information retrieval
- document clustering
- relevant documents
- probabilistic model
- multi document summarization
- public opinion
- data mining