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Publication

Using Dependency Paths For Answering Definition Questions on The Web

Alejandro Figueroa; John Atkinson
In: Proceedings of the 5th International Conference on Web Information Systems and Technologies. International Conference on Web Information Systems and Technologies (WEBIST-09), March 23-26, Lissabon, Portugal, Pages 643-650, ISBN 978-989-8111-81-4, INSTICC Press, 3/2009.

Abstract

This work presents a new approach to automatically answer definition questions from the Web. This approach learns n-gram language models from lexicalised dependency paths taken from abstracts provided by $Wikipedia$ and uses context information to identify candidate descriptive sentences containing target answers. Results using a prototype of the model showed the effectiveness of lexicalised dependency paths as salient indicators for the presence of definitions in natural language texts