Publication detail

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

MEDUNA, A. ČERMÁK, M. HORÁČEK, P.

Original Title

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

Type

journal article - other

Language

English

Original Abstract

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.

Keywords

n-languages, transducer, computational control

Authors

MEDUNA, A.; ČERMÁK, M.; HORÁČEK, P.

RIV year

2012

Released

19. 3. 2012

ISBN

1805-3610

Periodical

Mathematics for applications

Year of study

1

Number

1

State

Czech Republic

Pages from

13

Pages to

35

Pages count

22

URL

http://ma.fme.vutbr.cz/archiv/1_1/13_35.pdf

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"
}