A comparison of ALE and PATR: practical experiences

Milena Stefano, Wilco ter Stal

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    We describe our experiences with two unification­based grammar formalisms, namely ALE and PATR, used for syntactic and semantic analysis of NL texts. These formalisms can be considered to be high-level tools, like expert-system shells, for writing a NL grammar and for parsing sen­tences.
    However there are a number of aspects, such as ease of expression, augmentability, linguistic felic­itousness and computational efficiency in which ALE and PATR differ.
    The experiment is carried out in the context of the Plinius project which requires a.o. a large sublanguage grammar covering a fragment of En­glish.
    We will describe the formalization and imple­mentation of our linguistic ideas in PATR and ALE. Subsequently we will evaluate both exer­cises ihereby focusing on both practical and theo­retical properties of the two formalisms. The pur­pose of the experiment is to reveal whether there are motivated reasons concerning which kind of formalism can be employed best given the partic­ular Plinius task.
    Original languageEnglish
    Title of host publicationNatural Language Parsing: Methods and Formalisms - ACL/SIGPARSE Workshop
    Subtitle of host publicationProceedings of the sixth Twente Workshop on Language Technology
    EditorsKlaas Sikkel, Anton Nijholt
    Place of PublicationEnschede
    PublisherUniversity of Twente
    Number of pages15
    Publication statusPublished - 16 Dec 1993
    Event6th Twente Workshop on Language Technology, TWLT 6 - University of Twente, Enschede, Netherlands
    Duration: 16 Dec 199317 Dec 1993
    Conference number: 6

    Publication series

    NameTwente Workshop on Language Technology
    PublisherUniversity of Twente
    ISSN (Print)0929-0672


    Workshop6th Twente Workshop on Language Technology, TWLT 6
    Abbreviated titleTWLT


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