Keyphrases
- natural language
- context free grammars
- grammatical inference
- context free
- visual languages
- natural language processing
- computational properties
- tree adjoining
- parse selection
- tree grammars
- mildly context sensitive
- databases
- context free languages
- stochastic context free grammars
- grammar induction
- finite state automata
- graph grammars
- expressive power
- logic programs
- data model
- image processing
- real world