An Infinite Hierarchy of Intersections of Context-Free Language.
Leonard Y. LiuPeter WeinerPublished in: Math. Syst. Theory (1973)
Keyphrases
- context free
- regular languages
- context dependent
- grammatical inference
- context sensitive
- context free languages
- context free grammars
- finite state
- inductive inference
- attribute grammars
- tree languages
- phrase structure
- grammar rules
- natural language
- graph grammars
- regular expressions
- parse tree
- probabilistic context free grammars
- high level
- linguistic knowledge