On Derivation Languages Corresponding to Context-Free Grammars.
Martti PenttonenPublished in: Acta Informatica (1974)
Keyphrases
- context free grammars
- grammatical inference
- context free languages
- context free
- grammar induction
- regular languages
- closure properties
- formal languages
- attribute grammars
- regular expressions
- production rules
- covering arrays
- tree automata
- xml schema
- expressive power
- positive data
- knowledge based systems
- machine learning
- databases