Paper: Resolving Ellipsis In Clarification

ACL ID P01-1031
Title Resolving Ellipsis In Clarification
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 2001

We offer a computational analysis of the resolution of ellipsis in certain cases of dialogue clarification. We show that this goes beyond standard techniques used in anaphora and ellipsis resolu- tion and requires operations on highly structured, linguistically heterogeneous representations. We characterize these operations and the representations on which they operate. We offer an analy- sis couched in a version of Head-Driven Phrase Structure Grammar combined with a theory of information states (IS) in dialogue. We sketch an algorithm for the process of utterance integration in ISs which leads to grounding or clarifi- cation.