Validating Contradiction in Texts Using Online Co-Mention Pattern Checking

Authors:
Chengwei Shih;Chengwei Lee;Richard Tzonghan Tsai;Wenlian Hsu
Affiliations:
Academia Sinica/ National Tsinghua University;Academia Sinica;YuanZE University;Academia Sinica
Venue:
ACM Transactions on Asian Language Information Processing (TALIP) - Special Issue on RITE
Year:
2012

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Abstract

Detecting contradictive statements is a foundational and challenging task for text understanding applications such as textual entailment. In this article, we aim to address the problem of the shortage of specific background knowledge in contradiction detection. A novel contradiction detecting approach based on the distribution of the query composed of critical mismatch combinations on the Internet is proposed to tackle the problem. By measuring the availability of mismatch conjunction phrases (MCPs), the background knowledge about two target statements can be implicitly obtained for identifying contradictions. Experiments on three different configurations show that the MCP-based approach achieves remarkable improvement on contradiction detection and can significantly improve the performance of textual entailment recognition.