Keyphrases
- context free grammars
- production rules
- grammatical inference
- context free languages
- grammar induction
- context free
- rule sets
- regular expressions
- covering arrays
- production system
- knowledge based systems
- regular languages
- lexical semantics
- artificial intelligence
- xml schema
- expressive power
- data management
- fuzzy logic
- tree automata
- domain knowledge
- predicate invention
- neural network