Ogden's lemma, multiple context-free grammars, and the control language hierarchy.

Makoto Kanazawa

Published in: Inf. Comput. (2019)

Keyphrases

context free grammars
context free languages
formal languages
visual languages
predicate invention
context free
regular languages
control system
natural language
grammatical inference
attribute grammars
language processing
tree automata
artificial intelligence