Title :
The Web as a Source of Evidence for Filtering Candidate Answers to Natural Language Questions
Author :
Bonnefoy, Ludovic ; Bellot, Patrice ; Benoit, Michel
Author_Institution :
CERI, Univ. of Avignon, Avignon, France
Abstract :
Identifying and extracting named entities from web pages has been the subject of many researches. In this paper, we propose and evaluate some new unsupervised language modeling approaches to determine the membership level of a candidate answer, a named entity, to a natural language question to a very fine-grained conceptual class of entity. We propose to address this issue by using the Web or DBPedia hierarchy as sources of evidence. Then, this level of membership can be used to improve the ranking of candidate answers in a question-answering task. Lastly, we present the results we obtained by participating in TREC 2010 Entity track.
Keywords :
Internet; information filtering; natural language processing; question answering (information retrieval); DBPedia hierarchy; Web pages; candidate answer filtering; named entity extraction; named entity identification; natural language questions; question-answering task; unsupervised language modeling; Computational modeling; Engines; Ontologies; Organizations; Smoothing methods; Web pages; Web search; Information filtering; Information retrieval; Natural language processing; Question-Answering; TREC Entity;
Conference_Titel :
Web Intelligence and Intelligent Agent Technology (WI-IAT), 2011 IEEE/WIC/ACM International Conference on
Conference_Location :
Lyon
Print_ISBN :
978-1-4577-1373-6
Electronic_ISBN :
978-0-7695-4513-4
DOI :
10.1109/WI-IAT.2011.226
