Formal languages
Contextual grammars and natural languages
Handbook of formal languages, vol. 2
On computational complexity of contextual languages
Theoretical Computer Science - Special issue: formal language theory
Multi-bracketed contextual grammars
Journal of Automata, Languages and Combinatorics
Multi-bracketed contextual rewriting grammars
Fundamenta Informaticae
Marcus Contextual Grammars
Introduction To Automata Theory, Languages, And Computation
Introduction To Automata Theory, Languages, And Computation
Introduction to Formal Language Theory
Introduction to Formal Language Theory
Contextual grammars as generative models of natural languages
Computational Linguistics
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Bracketed contextual grammars are a variant of Marcus' contextual grammars with an induced Dyck-structure to control the derivation process and to provide derivation trees. Many variants of bracketed contextual grammars have been proposed in literature. In this paper, we study the relationship between various mechanisms in such grammars, in particular the number of brackets, the used selector languages, and the ability to introduce more than a single pair of brackets in a derivation step, with respect to the generative capacity of the resulting models.