Detail publikace

Rule-restricted automaton-grammar transducers: Power and linguistic applications

MEDUNA, A. ČERMÁK, M. HORÁČEK, P.

Originální název

Rule-restricted automaton-grammar transducers: Power and linguistic applications

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

This paper introduces the notion of a new transducer as a two-component system, which consists of a finite automaton and a context-free grammar. In essence, while the automaton reads its input string, the grammar produces its output string, and their cooperation is controlled by a set, which restricts the usage of their rules. From a theoretical viewpoint, the present paper discusses the power of this system working in an ordinary way as well as in a leftmost way. In addition, the paper introduces an appearance checking, which allows us to check whether some symbols are present in the rewritten string, and studies its effect on the power. It achieves the following three main results. First, the system generates and accepts languages defined by matrix grammars and partially blind multi-counter automata, respectively. Second, if we place a leftmost restriction on derivation in the context-free grammar, both accepting and generating power of the system is equal to generative power of context-free grammars. Third, the system with appearance checking can accept and generate all recursively enumerable languages. From more pragmatical viewpoint, this paper describes several linguistic applications. A special attention is paid to the Japanese-Czech translation.

Klíčová slova

n-languages, transducer, computational control

Autoři

MEDUNA, A.; ČERMÁK, M.; HORÁČEK, P.

Rok RIV

2012

Vydáno

19. 3. 2012

ISSN

1805-3610

Periodikum

Mathematics for applications

Ročník

1

Číslo

1

Stát

Česká republika

Strany od

13

Strany do

35

Strany počet

22

URL

BibTex

@article{BUT96944,
  author="Alexandr {Meduna} and Martin {Čermák} and Petr {Horáček}",
  title="Rule-restricted automaton-grammar transducers: Power and linguistic applications",
  journal="Mathematics for applications",
  year="2012",
  volume="1",
  number="1",
  pages="13--35",
  issn="1805-3610",
  url="http://ma.fme.vutbr.cz/archiv/1_1/13_35.pdf"
}