CorrefSum: Referencial Cohesion Recovery in Extractive Summaries

Authors:
Patrícia Nunes Gonçalves;Renata Vieira;Lucia Helena Rino
Affiliations:
Pontíficia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brasil;Pontíficia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brasil;Universidade Federal de São Carlos, São Carlos, Brasil
Venue:
PROPOR '08 Proceedings of the 8th international conference on Computational Processing of the Portuguese Language
Year:
2008

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Abstract

A common problem in extractive summaries is the occurrence of referential expressions which are of difficult interpretation. In this paper we propose and evaluate a system for summary post-edition, which aims at replacing referential expressions, trying to avoid problems of broken referential linkage. To propose expressions that best represent the evoked entity, the system uses knowledge about coreference chains.