tailieunhanh - Báo cáo khoa học: "DESCRIPTIONAL ANAPHORA IN DISCOURSE REPRESENTATION THEORY"

Standard Discourse Representation Theory (DRT) was designed mainly to explain the so-called donkey-sentences. The pronouns plaYing such a prominent role in all these sentences belong, however, exclusively to one (partlculaPly simple) type of pronoun. We try to extend DRT in order to cover an equally Important type of pronoun, the so-called etdes0rIptlonal,* pronoun. Discourse referents ape now used Eo carry information on the intenslon of their referents as well as on the extenslon. This allows, at the same time. to suggest accessibility rules for Pronouns which are more appropriate than those suggested by traditional DRT. . | DESCRIPTIONAL ANAPHORA IN DISCOURSE REPRESENTATION THEORY Michael Hess Department of Computer Sciences University of Zurich Wlnterthurerstr. 190 CH-8057 Zurich Switzerland ABSTRACT Standard Discourse Representation Theory DRT was designed mainly to explain the so-called donkey-sentences. The pronouns playins such a prominent role In all these sentences belong however exclusively to one particularly simple type of pronoun. We try to extend DRT in order to cover an equally important type of pronoun the so-called descriptlonal pronoun. Discourse referents are now used to carry Information on the Intension of their referents as well as on the extension. This allows at the same time to suggest accessibility rules for pronouns which are more appropriate than those suggested by traditional DRT. These new rules are based on the genericness of the sentences involved. 1. PRONOMINAL REFERENCE AS STARTING POINT FOR DISCOURSE REPRESENTATION THEORY One of the starting points for the development of DRT In Kamp s original paper Kamp 1981 was the seemingly erratic behaviour shown by indefinite noun phrases under a traditional logical analysis and the equally erratic Interactions that seem to obtain between indefinite noun phrases and inter-sentential and mtra-sententlal pronominal references to them. Of particular interest was the behaviour of Indefinite noun phrases in the so-called donkey-sentences. Definiteness and Indefiniteness in Traditional Linguistic Theory The traditional and intuitively quite convincing view has It that definite noun phrases refer to an object that Is already familiar to the speaker and possibly also to the listener whereas indefinite noun phrases Introduce new objects. This theory looks convincing as long as we consider explicit definites as In 1 John owns a donkey. John beats the donkey where the donkey is introduced as existing by the indefinite noun phrase and referred to as familiar by the following definite noun phrase. Personal pronouns are .

• Báo cáo khoa học
• DESCRIPTIONAL ANAPHORA
• DISCOURSE REPRESENTATION THEORY
• Michael Hess
• scientific reports
• model language
• process natural language
• Dialog Control
• Natural Language System
• Dialog Control in a Natural Language System
• Expanding the Horizons
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• COMPUTER INTEBFACE DESIGN MURRAY TUROFF DEPARTMENT OF COMPUTER
• IiVFORMATION SCIENCE IIEW JERSEY INSTITUTE OF TECHNOLOGY
• EVALUATION OF NATURAL LANGUAGE
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• A PANEL DISCUSSION
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• Norwood Crout
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• Bozena Henisz
• INTERPRETING NATURAL LANGUAGE
• DATABASE UPDATES
• S
• Jermld Kaplan Jim David
• TRANSPORTABLE NATURAL LANGUAGE
• INTERFACES TO DATABASES
• Gary G
• Hendrlx and William H
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• Barbara J
• Grosz
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• Salveter David Maier
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• MENTING A DATABASE
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• Jeffrey Conklin David D
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• Stuart C
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