Paper: Centered Segmentation: Scaling Up The Centering Model To Global Discourse Structure

ACL ID P97-1014
Title Centered Segmentation: Scaling Up The Centering Model To Global Discourse Structure
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 1997
Authors

We specify an algorithm that builds up a hi- erarchy of referential discourse segments from local centering data. The spatial extension and nesting of these discourse segments constrain the reachability of potential antecedents of an anaphoric expression beyond the local level of adjacent center pairs. Thus, the centering model is scaled up to the level of the global referential structure of discourse. An empiri- cal evaluation of the algorithm is supplied.