Paper: Temporal Connectives In A Discourse Context

ACL ID E93-1031
Title Temporal Connectives In A Discourse Context
Venue Annual Meeting of The European Chapter of The Association of Computational Linguistics
Session Main Conference
Year 1993

We examine the role of temporal connec- tives in multi-sentence discourse. In cer- tain contexts, sentences containing tempo- ral connectives that are equivalent in tem- porai structure can fail to be equivalent in terms of discourse coherence. We account for this by offering a novel, formal mech- anism for accommodating the presupposi- tions in temporal subordinate clauses. This mechanism encompasses both accommoda- tion by discourse aftachme,f and accom- modation by temporal addition. As such, it offers a precise and systematic model of interactions between presupposed material, discourse context, and the reader's back- ground knowledge. We show how the re- sults of accommodation help to determine a discou~e's coherence.