Handbook of formal languages, vol. 3
Handbook of formal languages, vol. 3
Descriptive Approach to Language - Theoretic Complexity
Descriptive Approach to Language - Theoretic Complexity
wMSO theories as grammar formalisms
Theoretical Computer Science - Algebraic methods in language processing
Closure properties of linear context-free tree languages with an application to optimality theory
Theoretical Computer Science - Algebraic methods in language processing
Linearity and nondeletion on monadic context-free tree grammars
Information Processing Letters
Journal of Computer and System Sciences
Strong lexicalization of tree adjoining grammars
ACL '12 Proceedings of the 50th Annual Meeting of the Association for Computational Linguistics: Long Papers - Volume 1
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The equivalence of leaf languages of tree adjoining grammars and monadic linear context-free grammars was shown about a decade ago. This paper presents a proof of the strong equivalence of these grammar formalisms. Non-strict tree adjoining grammars and monadic linear context-free grammars define the same class of tree languages. We also present a logical characterisation of this tree language class showing that a tree language is a member of this class iff it is the two-dimensional yield of an MSO-definable three-dimensional tree language.