How to answer yes/no spatial questions using qualitative reasoning?

Authors:
Marcin Walas
Affiliations:
Faculty of Mathematics and Computer Science, Adam Mickiewicz University, Poznań, Poland
Venue:
CICLing'12 Proceedings of the 13th international conference on Computational Linguistics and Intelligent Text Processing - Volume Part II
Year:
2012

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Abstract

We present a method of answering yes/no spatial questions for the purpose of the open-domain Polish question answering system based on news texts. We focus on questions which refer to certain qualitative spatial relation (e.g. Was Baruch Lumet born in the United States?). In order to answer such questions we apply qualitative spatial reasoning to our state-of-art question processing mechanisms. We use Region Connection Calculus (namely RCC-5) in the process of reasoning. In this paper we describe our algorithm that finds the answer to yes/no spatial questions. We propose a method for the evaluation of the algorithm and report results we obtained for a self-made questions set. Finally, we give some suggestions for possible extensions of our methods.