Keyphrases
- context free grammars
- grammatical inference
- context free languages
- predicate invention
- syntactic pattern recognition
- regular expressions
- context free
- covering arrays
- attribute grammars
- grammar induction
- xml schema
- tree automata
- formal languages
- tree adjoining
- neural network
- production rules
- context sensitive
- multistage
- genetic programming
- control system
- natural language