Detail publikace

Synchronous Versions of Regulated Grammars: Generative Power and Linguistic Applications

Originální název

Synchronous Versions of Regulated Grammars: Generative Power and Linguistic Applications

Anglický název

Synchronous Versions of Regulated Grammars: Generative Power and Linguistic Applications

Jazyk

en

Originální abstrakt

This paper introduces the notion of new synchronous grammars as systems consisting of two context-free grammars with linked rules instead of linked nonterminals. Further, synchronous versions of regulated grammars, specifically, matrix grammars and scattered context grammars, are discussed. From a theoretical point of view, this paper discusses the power of these synchronous grammars. It demonstrates the following main results. First, if we synchronize context-free grammars by linking rules, the grammar generates the languages defined by matrix grammars. Second, if we synchronize matrix grammars by linking matrices, the generative power remains unchanged. Third, synchronous scattered context grammars generate the class of recursively enumerable languages. From a more practical viewpoint, this paper presents linguistic application prospects. The focus is on natural language translation between Japanese and English.

Anglický abstrakt

This paper introduces the notion of new synchronous grammars as systems consisting of two context-free grammars with linked rules instead of linked nonterminals. Further, synchronous versions of regulated grammars, specifically, matrix grammars and scattered context grammars, are discussed. From a theoretical point of view, this paper discusses the power of these synchronous grammars. It demonstrates the following main results. First, if we synchronize context-free grammars by linking rules, the grammar generates the languages defined by matrix grammars. Second, if we synchronize matrix grammars by linking matrices, the generative power remains unchanged. Third, synchronous scattered context grammars generate the class of recursively enumerable languages. From a more practical viewpoint, this paper presents linguistic application prospects. The focus is on natural language translation between Japanese and English.

BibTex


@article{BUT97006,
  author="Petr {Horáček} and Alexandr {Meduna}",
  title="Synchronous Versions of Regulated Grammars: Generative Power and Linguistic Applications",
  annote="This paper introduces the notion of new synchronous grammars as systems
consisting of two context-free grammars with linked rules instead of linked
nonterminals. Further, synchronous versions of regulated grammars, specifically,
matrix grammars and scattered context grammars, are discussed. From a theoretical
point of view, this paper discusses the power of these synchronous grammars. It
demonstrates the following main results. First, if we synchronize context-free
grammars by linking rules, the grammar generates the languages defined by matrix
grammars. Second, if we synchronize matrix grammars by linking matrices, the
generative power remains unchanged. Third, synchronous scattered context grammars
generate the class of recursively enumerable languages. From a more practical
viewpoint, this paper presents linguistic application prospects. The focus is on
natural language translation between Japanese and English.",
  address="NEUVEDEN",
  chapter="97006",
  doi="10.2478/v10179-012-0011-6",
  edition="NEUVEDEN",
  howpublished="print",
  institution="NEUVEDEN",
  number="3",
  volume="24",
  year="2012",
  month="november",
  pages="175--190",
  publisher="NEUVEDEN",
  type="journal article - other"
}