IEICE Trans - Using IS-A Relation Patterns for Factoid Questions in Question Answering Systems

Using IS-A Relation Patterns for Factoid Questions in Question Answering Systems

Bojun SHIM
Youngjoong KO
Jungyun SEO

Publication
IEICE TRANSACTIONS on Information and Systems Vol.E89-D No.12 pp.2985-2989
Publication Date: 2006/12/01
Online ISSN: 1745-1361
DOI: 10.1093/ietisy/e89-d.12.2985
Print ISSN: 0916-8532
Type of Manuscript: LETTER
Category: Contents Technology and Web Information Systems
Keyword:
information retrieval, Question Answering system, IS-A relation pattern, factoid question,

Full Text: PDF(252.3KB)>>

Summary:
This paper describes a flexible strategy to generate candidate answers for factoid questions in Question Answering (QA) systems. Most QA systems have predefined the conceptual categories for candidate answers. But if the conceptual category of answers to any question is not prepared in the QA system, it is hard to extract correct answers to that question. Therefore, we propose an extraction method for IS-A relation patterns which describe relations between the nominal target concepts of question and candidate answers. The extracted IS-A relation patterns can be used for questions with an unexpected target concept.

open access publishing via