Time-Bounded Controlled Bidirectional Grammars

Jan Anne Hogendorp

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    Abstract

    We study regularly controlled bidirectional (RCB) grammars from the viewpoint of time-bounded grammars. RCB-grammars are context-free grammars of which the rules can be used in a productive and in a reductive fashion, while the application of these rules is controlled by a regular language. Several modes of derivation can be distinguished for this kind of grammar. A time-bound on such a grammar is a measure of its derivational complexity. For some families of time bounds and for some modes of derivation we establish closure properties and a normal form theorem. In addition parsing algorithms are given for some modes of derivation. We conclude with considering generalizations with respect to the family of control languages and the family of bounding functions.
    Original languageUndefined
    Place of PublicationEnschede
    PublisherUniversity of Twente, Department of Computer Science
    Number of pages26
    Publication statusPublished - 1988

    Publication series

    NameMemoranda Informatica
    PublisherUniversity of Twente, Department of Computer Science
    No.INF-88-53
    ISSN (Print)0923-1714

    Keywords

    • EWI-10889
    • IR-64291
    • HMI-SLT: Speech and Language Technology

    Cite this

    Hogendorp, J. A. (1988). Time-Bounded Controlled Bidirectional Grammars. (Memoranda Informatica; No. INF-88-53). Enschede: University of Twente, Department of Computer Science.