Segmented Discourse Representation Theory Asher and Lascarides (2003) - - PowerPoint PPT Presentation

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Segmented Discourse Representation Theory

Asher and Lascarides (2003) - Slides from Alex Lascarides

A dynamic semantic theory of discourse interpretation It uses rhetorical relations to model the semantics/pragmatics interface. semantic underspecification is expressed as partial descriptions

• f logical forms, and

a glue logic which uses commonsense reasoning to construct logical forms, relating the semantically underspecified forms that are generated by the grammar to their pragmatically preferred interpretations

Pustejovsky - Brandeis Computational Event Models

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The Need for Rhetorical Relations: Data

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The Need for Rhetorical Relations: Data

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The Strategy

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Logic of Information Content: Syntax

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SDRSs allow Plurality

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A Diagram

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Example

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Other Ways of Showing This

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Availability: You can attach things to the right frontier

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Improvement on DRT: The Dansville Example

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Semantics: Veridical Relations - Speech Acts

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Defining φR(α,β) for various R

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Defining φR(α,β) for various R

Pustejovsky - Brandeis Computational Event Models