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 Seiten 643-650 ISBN 978-989-8111-81-4 INSTICC Press 3/2009.


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

webist_2009_v3.pdf (pdf, 105 KB )

Deutsches Forschungszentrum für Künstliche Intelligenz
German Research Center for Artificial Intelligence