USING DEPENDENCY PATHS FOR ANSWERING DEFINITION QUESTIONS ON THE WEB

Alejandro Figueroa; John Atkinson

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Paper

USING DEPENDENCY PATHS FOR ANSWERING DEFINITION QUESTIONS ON THE WEB

Topics: Searching and Browsing; Web Information Filtering and Retrieval; Web Mining

In Proceedings of the Fifth International Conference on Web Information Systems and Technologies WEBIST - Volume 1, 638-645, 2009 , Lisbon, Portugal

Authors: Alejandro Figueroa ¹ and John Atkinson ²

Affiliations: ¹ Deutsches Forschungszentrum für Künstliche Intelligenz, Germany ; ² Universidad de Concepción, Chile

Keyword(s): Web question answering, Definition questions, Lexical dependency paths, n-Gram language models.

Related Ontology Subjects/Areas/Topics: Artificial Intelligence ; Knowledge Discovery and Information Retrieval ; Knowledge-Based Systems ; Searching and Browsing ; Soft Computing ; Symbolic Systems ; Web Information Systems and Technologies ; Web Interfaces and Applications ; Web Mining

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 byWikipedia 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.

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Paper citation in several formats:

Figueroa, A. and Atkinson, J. (2009). USING DEPENDENCY PATHS FOR ANSWERING DEFINITION QUESTIONS ON THE WEB. In Proceedings of the Fifth International Conference on Web Information Systems and Technologies - WEBIST; ISBN 978-989-8111-81-4; ISSN 2184-3252, SciTePress, pages 638-645. DOI: 10.5220/0001833806380645

@conference{webist09,
author={Alejandro Figueroa. and John Atkinson.},
title={USING DEPENDENCY PATHS FOR ANSWERING DEFINITION QUESTIONS ON THE WEB},
booktitle={Proceedings of the Fifth International Conference on Web Information Systems and Technologies - WEBIST},
year={2009},
pages={638-645},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001833806380645},
isbn={978-989-8111-81-4},
issn={2184-3252},
}

TY - CONF

JO - Proceedings of the Fifth International Conference on Web Information Systems and Technologies - WEBIST
TI - USING DEPENDENCY PATHS FOR ANSWERING DEFINITION QUESTIONS ON THE WEB
SN - 978-989-8111-81-4
IS - 2184-3252
AU - Figueroa, A.
AU - Atkinson, J.
PY - 2009
SP - 638
EP - 645
DO - 10.5220/0001833806380645
PB - SciTePress