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Anchoring a Lexicalized Tree-Adjoining Grammar for Discourse

Bonnie Lynn Webber·Aravind K. Joshi
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Abstract

We here explore a ``fully'' lexicalized Tree-Adjoining Grammar for discourse that takes the basic elements of a (monologic) discourse to be not simply clauses, but larger structures that are anchored on variously realized discourse cues. This link with intra-sentential grammar suggests an account for different patterns of discourse cues, while the different structures and operations suggest three separate sources for elements of discourse meaning: (1) a compositional semantics tied to the basic trees and operations; (2) a presuppositional semantics carried by cue phrases that freely adjoin to trees; and (3) general inference, that draws additional, defeasible conclusions that flesh out what is conveyed compositionally.

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Bonnie Lynn Webber, Aravind K. Joshi. 1998-06-24. Anchoring a Lexicalized Tree-Adjoining Grammar for Discourse. https://arxiv.org/abs/cmp-lg/9806017

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