Keyphrases
- context free grammars
- grammatical inference
- syntactic pattern recognition
- context free languages
- context free
- grammar induction
- attribute grammars
- xml schema
- covering arrays
- production rules
- regular expressions
- regular languages
- predicate invention
- tree automata
- machine learning
- query language
- formal languages
- lexical semantics
- domain knowledge
- data model
- natural language