Paper: Temporal Centering

ACL ID P93-1010
Title Temporal Centering
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 1993

We present a semantic and pragmatic account of the anaphoric properties of past and perfect that improves on previous work by integrating dis- course structure, aspectual type, surface structure and commonsense knowledge. A novel aspect of our account is that we distinguish between two kinds of temporal intervals in the interpretation of temporal operators -- discourse reference inter- vals and event intervals. This distinction makes it possible to develop an analogy between center- ing and temporal centering, which operates on dis- course reference intervals. Our temporal property- sharing principle is a defeasible inference rule on the logical form. Along with lexical and causal reasoning, it plays a role in incrementally resolv- ing underspecified aspects of the event structure represen...