Abstract Grammars Based on Transductions (Revised version)

P.R.J. Asveld

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    Abstract

    We study an abstract grammatical model in which the effect (or application) of a production - determined by a so-called transduction - plays the main part rather than the notion of production itself. Under appropriately chosen assumptions on the underlying family $T$ of transductions, we establish elementary, decidability, and complexity properties of the corresponding family $L(T)$ of languages generated by $T$-grammars. These results are special instances of slightly more general properties of so-called $\Gamma$-controlled $T$-grammars, since regular control does not increase the generating power of $T$-grammars (In a $\Gamma$-controlled $T$-grammar we restrict the iteration of $T$-transductions to those sequences of transductions that belong to a given control language, taken from a family $\Gamma$ of control languages).
    Original languageEnglish
    Place of PublicationEnschede
    PublisherUniversity of Twente, Department of Computer Science
    Number of pages18
    Publication statusPublished - 1989

    Publication series

    NameMemoranda Informatica
    PublisherUniversity of Twente, Department of Computer Science
    No.INF-89-07
    ISSN (Print)0924-3755

    Keywords

    • HMI-SLT: Speech and Language Technology

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