Keyphrases
- context free grammars
- context free languages
- context free
- syntactic pattern recognition
- grammatical inference
- grammar induction
- visual languages
- tree adjoining
- attribute grammars
- regular expressions
- production rules
- semantic parsing
- covering arrays
- xml schema
- regular languages
- knowledge based systems
- query processing
- multistage
- tree automata
- domain knowledge
- lexical semantics
- data model
- databases
- database