A semantic approach to textual entailment: system evaluation and task analysis

Authors:
Aljoscha Burchardt;Nils Reiter;Stefan Thater;Anette Frank
Affiliations:
Saarland University, Saarbrücken, Germany;Saarland University, Saarbrücken, Germany;Saarland University, Saarbrücken, Germany;University of Heidelberg, Germany
Venue:
RTE '07 Proceedings of the ACL-PASCAL Workshop on Textual Entailment and Paraphrasing
Year:
2007

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Abstract

This paper discusses our contribution to the third RTE Challenge -- the SALSA RTE system. It builds on an earlier system based on a relatively deep linguistic analysis, which we complement with a shallow component based on word overlap. We evaluate their (combined) performance on various data sets. However, earlier observations that the combination of features improves the overall accuracy could be replicated only partly.