A Characterization of Context-free String Languages by Directed Node-label Controlled Graph Grammars.

Dirk Janssens Grzegorz Rozenberg

Published in: Acta Informatica (1981)

Keyphrases

context free
graph grammars
context free grammars
grammatical inference
context sensitive
context dependent
finite state
inductive inference
regular expressions
pattern matching
production rules
natural language
natural language processing