Keyphrases
- positive or negative
- operational semantics
- definition language
- positive and negative
- rule language
- lexical semantics
- sentiment analysis
- logic programming
- predicate calculus
- formal semantics
- user friendly
- data sets
- natural language
- user interface
- conceptual graphs
- sentiment classification
- visual interface
- sentence level
- semantic information
- attribute grammars
- semantic representation
- machine processable
- polarity classification
- language constructs
- natural language interface
- logic programs
- natural language processing
- machine learning