Keyphrases
- sentiment analysis
- social media content
- sentence level
- social media
- opinion mining
- text mining
- public opinion
- sentiment classification
- text classification
- positive or negative
- multi aspect
- natural language processing
- user generated
- sentiment lexicon
- broad coverage
- keywords
- free text
- product features
- information retrieval
- collective classification
- online reviews
- neural network
- text documents
- databases
- data mining
- user generated content
- semantic information
- web documents
- query expansion
- information extraction
- machine learning