Paper: An Augmented Context Free Grammar For Discourse

ACL ID C88-2120
Title An Augmented Context Free Grammar For Discourse
Venue International Conference on Computational Linguistics
Session Main Conference
Year 1988

This paper presents an augmented context free grammar which describes important features of the surface structure and the semantics of discourse in a formal way, integrating new as well as previously existing insights into a unified framework. The structures covered include lists, narratives, subordinating and coordinating rhetorical relations, topic chains and interruptions. The paper discusses the problem of parsing discourse, and compares different grammatical formalisms which could be used for describing discourse structure. Remko SCHA and Livia POLANYI BBN Laboratories 10 Moulton Street Cambridge, MA 02238 latter case, a correct constituent analysis of the discourse is necessary to establish the arguments of the rhetorical relations. On the other hand, the rhetorical relations themsel...