On alternating phrase-structure grammars

Etsuro Moriya, Friedrich Otto

    Research output: Contribution to journalArticle

    Abstract

    The concepts of alternation and of state alternation are extended from context-free grammars to context-sensitive and arbitrary phrase-structure grammars. For the resulting classes of alternating grammars the expressive power is investigated with respect to the leftmost derivation mode and with respect to the unrestricted derivation mode. In particular new grammatical characterizations for the class of languages that are accepted by alternating pushdown automata are obtained in this way.

    Original languageEnglish
    Pages (from-to)1-25
    Number of pages25
    JournalInternational Journal of Foundations of Computer Science
    Volume21
    Issue number1
    DOIs
    Publication statusPublished - 2010 Feb

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    Context free grammars

    ASJC Scopus subject areas

    • Computer Science (miscellaneous)

    Cite this

    On alternating phrase-structure grammars. / Moriya, Etsuro; Otto, Friedrich.

    In: International Journal of Foundations of Computer Science, Vol. 21, No. 1, 02.2010, p. 1-25.

    Research output: Contribution to journalArticle

    Moriya, Etsuro ; Otto, Friedrich. / On alternating phrase-structure grammars. In: International Journal of Foundations of Computer Science. 2010 ; Vol. 21, No. 1. pp. 1-25.
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