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    Constraints on the Generation of Tense, Aspect, and Connecting Words from Temporal Expressions

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    CS-TR-4391.pdf (566.1Kb)
    No. of downloads: 893

    Date
    2002-08-30
    Author
    Dorr, Bonnie J.
    Gaasterland, Terry
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    Abstract
    Generating language that reflects the temporal organization of represented knowledge requires a language generation model that integrates contemporary theories of tense and aspect, temporal representations, and methods to plan text. This paper presents a model that produces event combinations and appropriate connecting words to relate them. We distinguish between inherent and non-inherent aspectual features of verbs and describe an algorithm that uses these features to select tense, aspect, and temporal connecting words for generating text based on time-stamped information. The main result of this work is the successful incorporation of constrained linguistic theories of tense and aspect in a self-contained module called CONGEN that produces a ranked list of temporal connectives and tense/aspect possibilities from pairs of time-stamped literals. We show that the theoretical results described herein have been verified in a large-scale corpus analysis. The framework serves as the basis of a component designed to enhance the English output of a constrained generation system. (LAMP-TR-091) (UMIACS-TR-2002-71)
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    http://hdl.handle.net/1903/1218
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