Entailment, intensionality and text understanding

Authors:
Cleo Condoravdi;Dick Crouch;Valeria de Paiva;Reinhard Stolle;Daniel G. Bobrow
Affiliations:
PARC, Palo Alto, CA;PARC, Palo Alto, CA;PARC, Palo Alto, CA;PARC, Palo Alto, CA;PARC, Palo Alto, CA
Venue:
HLT-NAACL-TEXTMEANING '03 Proceedings of the HLT-NAACL 2003 workshop on Text meaning - Volume 9
Year:
2003

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Abstract

We argue that the detection of entailment and contradiction relations between texts is a minimal metric for the evaluation of text understanding systems. Intensionality, which is widespread in natural language, raises a number of detection issues that cannot be brushed aside. We describe a contexted clausal representation, derived from approaches in formal semantics, that permits an extended range of intensional entailments and contradictions to be tractably detected.