Publication detail

Bidirectional Contextual Grammars

TECHET, J.

Original Title

Bidirectional Contextual Grammars

Type

conference paper

Language

English

Original Abstract

The present paper introduces and discusses bidirectional contextual grammars as a straightforward generalization of externally generating contextual grammars without choice. In essence, besides ordinary derivation steps, the bidirectional contextual grammars can also make reduction steps, which shorten the rewritten strings. This paper demonstrates that these grammars characterize the family of recursively enumerable languages. In fact, this characterization holds even in terms of one-turn bidirectional contextual grammars, which can change derivations steps to reduction steps during the generation process no more than once.

Keywords

contextual grammars, bidirectional grammars, generative power, recursively enumerable languages

Authors

TECHET, J.

RIV year

2006

Released

26. 4. 2006

Location

Přerov

ISBN

80-86840-20-4

Book

Proceedings of 1st International Workshop WFM '06

Pages from

61

Pages to

68

Pages count

8

BibTex

@inproceedings{BUT25902,
  author="Jiří {Techet}",
  title="Bidirectional Contextual Grammars",
  booktitle="Proceedings of 1st International Workshop WFM '06",
  year="2006",
  pages="61--68",
  address="Přerov",
  isbn="80-86840-20-4"
}