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Towards a Wide-Coverage Tableau Method for Natural Logic

  • Lasha AbzianidzeEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9067)

Abstract

The first step towards a wide-coverage tableau prover for natural logic is presented. We describe an automatized method for obtaining Lambda Logical Forms from surface forms and use this method with an implemented prover to hunt for new tableau rules in textual entailment data sets. The collected tableau rules are presented and their usage is also exemplified in several tableau proofs. The performance of the prover is evaluated against the development data sets. The evaluation results show an extremely high precision above 97 % of the prover along with a decent recall around 40 %.

Keywords

Combinatory Categorial Grammar Lambda Logical Form Natural logic Theorem prover Tableau method Textual entailment 

Notes

Acknowledgements

I would like to thank Reinhard Muskens for his discussions and continuous feedback on this work. I also thank Matthew Honnibal, James R. Curran and Johan Bos for sharing the retrained CCG parser and anonymous reviewers of LENLS11 for their valuable comments. The research is part of the project “Towards Logics that Model Natural Reasoning” and supported by the NWO grant (project number 360-80-050).

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Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.Tilburg University - TiLPSTilburgThe Netherlands

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