On Non Context-Free Grammar Forms.

Hermann A. Maurer Martti Penttonen Arto Salomaa Derick Wood

Published in: Math. Syst. Theory (1979)

Keyphrases

context free grammars
context free languages
grammatical inference
syntactic pattern recognition
context free
attribute grammars
regular languages
high level
regular expressions
formal languages
data mining
xml schema
production rules
semantic parsing
covering arrays
neural network