Analysis of a textual entailer

Authors:
Vasile Rus;Philip M. McCarthy;Arthur C. Graesser
Affiliations:
Department of Computer Science;Department of Psychology, Institute for Intelligent Systems, The University of Memphis, Memphis, TN;Department of Psychology, Institute for Intelligent Systems, The University of Memphis, Memphis, TN
Venue:
CICLing'06 Proceedings of the 7th international conference on Computational Linguistics and Intelligent Text Processing
Year:
2006

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Abstract

We present in this paper the structure of a textual entailer, offer a detailed view of lexical aspects of entailment and study the impact of syntactic information on the overall performance of the textual entailer. It is shown that lemmatization has a big impact on the lexical component of our approach and that syntax leads to accurate entailment decisions for a subset of the test data.