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Paper Abstract and Keywords
Presentation 2007-07-02 17:10
Extracting Conceptural Hierarchies from the Web by Term Coordinate and Property Inheritance Relationships
Shun Hattori, Hiroaki Ohshima, Satoshi Oyama, Katsumi Tanaka (Kyoto Univ.) DE2007-43
Abstract (in Japanese) (See Japanese page) 
(in English) Conceptual hierarchies, such as hyponymy and meronymy relations, are very important for natural language processing systems. Many researchers have tackled how to mine very large corpora of documents such as the Web for conceptual hierarchies. However, their methods are mostly based on lexico-syntactic patterns as not necessary but sufficient conditions of conceptual hierarchies, so they can achieve high precision but low recall using stricter patterns or they can achieve high recall but low precision using looser patterns. In this paper, we assume property inheritance relationships to be necessary and sufficient conditions of hyponymy relations to achieve high recall and not low precision, and propose a method to acquire hyponymy relations from the Web based on property inheritance relationships between a superordinate concept and a subordinate concept with its coordinate concept.
Keyword (in Japanese) (See Japanese page) 
(in English) Web Mining / Hyponymy / Meronymy / Inheritance Relations / Coordinate Relations / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 131, DE2007-43, pp. 127-132, July 2007.
Paper # DE2007-43 
Date of Issue 2007-06-25 (DE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF DE2007-43

Conference Information
Committee DE  
Conference Date 2007-07-02 - 2007-07-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Akiu hot springs (Sendai) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Summer Database Workshop 2007 (Data engineering, etc.) 
Paper Information
Registration To DE 
Conference Code 2007-07-DE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Extracting Conceptural Hierarchies from the Web by Term Coordinate and Property Inheritance Relationships 
Sub Title (in English)  
Keyword(1) Web Mining  
Keyword(2) Hyponymy  
Keyword(3) Meronymy  
Keyword(4) Inheritance Relations  
Keyword(5) Coordinate Relations  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Shun Hattori  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Hiroaki Ohshima  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Satoshi Oyama  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
4th Author's Name Katsumi Tanaka  
4th Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2007-07-02 17:10:00 
Presentation Time 25 minutes 
Registration for DE 
Paper # DE2007-43 
Volume (vol) vol.107 
Number (no) no.131 
Page pp.127-132 
#Pages 6 
Date of Issue 2007-06-25 (DE) 

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