Paper: Question Answering Using Constraint Satisfaction: QA-By-Dossier-With-Contraints

ACL ID P04-1073
Title Question Answering Using Constraint Satisfaction: QA-By-Dossier-With-Contraints
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 2004
Authors

QA-by-Dossier-with-Constraints is a new ap- proach to Question Answering whereby candi- date answers’ confidences are adjusted by asking auxiliary questions whose answers con- strain the original answers. These constraints emerge naturally from the domain of interest, and enable application of real-world knowledge to QA. We show that our approach signifi- cantly improves system performance (75% rela- tive improvement in F-measure on select question types) and can create a “dossier” of in- formation about the subject matter in the origi- nal question.