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MEDUNA, A. ZEMEK, P.
Originální název
One-Sided Random Context Grammars with Leftmost Derivations
Typ
kapitola v knize
Jazyk
angličtina
Originální abstrakt
In this paper, we study the generative power of one-sided random context grammars working in a leftmost way. More specifically, by analogy with the three well-known types of leftmost derivations in regulated grammars, we introduce three types of leftmost derivations to one-sided random context grammars and prove the following three results. (I) One-sided random context grammars with type-1 leftmost derivations characterize the family of context-free languages. (II) One-sided random context grammars with type-2 and type-3 leftmost derivations characterize the family of recursively enumerable languages. (III) Propagating one-sided random context grammars with type-2 and type-3 leftmost derivations characterize the family of context-sensitive languages. In the conclusion, the generative power of random context grammars and one-sided random context grammars with leftmost derivations is compared.
Klíčová slova
formal languages, regulated rewriting, one-sided random context grammars, leftmost derivations, generative power
Autoři
MEDUNA, A.; ZEMEK, P.
Rok RIV
2012
Vydáno
1. 7. 2012
Nakladatel
Springer Verlag
Místo
Berlin-Heidelberg
ISBN
978-3-642-31643-2
Kniha
LNCS Festschrift Series: Languages Alive - Essays Dedicated to Jürgen Dassow on the Occasion of His 65th Birthday
Strany od
160
Strany do
173
Strany počet
14
URL
https://www.scopus.com/record/display.uri?eid=2-s2.0-84867018824&origin=resultslist
BibTex
@inbook{BUT96922, author="Alexandr {Meduna} and Petr {Zemek}", title="One-Sided Random Context Grammars with Leftmost Derivations", booktitle="LNCS Festschrift Series: Languages Alive - Essays Dedicated to Jürgen Dassow on the Occasion of His 65th Birthday", year="2012", publisher="Springer Verlag", address="Berlin-Heidelberg", pages="160--173", doi="10.1007/978-3-642-31644-9\{_}11", isbn="978-3-642-31643-2", url="https://www.scopus.com/record/display.uri?eid=2-s2.0-84867018824&origin=resultslist" }