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Paper Abstract and Keywords
Presentation 2007-07-04 08:00
Reduction of Matrix Size for Filtering Labeled Graph
Hideki Nagaya, Kaoru Katayama (Tokyo Metropolitan Univ.) DE2007-100
Abstract (in Japanese) (See Japanese page) 
(in English) It is often used to solve the subgraph isomorphism problem in various application such as retrieval for a chemical formula, feature extraction from pictures. This problem is NP-complete and require large computation
cost to solve it. We suggested to use the fact concerning the symmetric eigenvalue (Cauchy’s interlace theorem) as a preprocessing of the subgraph isomorphism. It is effective to reduce order of the matrix for decreasing the cost to calculate eigenvalue. In this paper, we suggest a method reducing order of the matrix while filtering labeled graphs by using label of graphs.
Keyword (in Japanese) (See Japanese page) 
(in English) Subgraph Isomorphism / Interlace Theorem / Eigenvalue / Labeled Graphs / Filtering / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 131, DE2007-100, pp. 467-472, July 2007.
Paper # DE2007-100 
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 DE2007-100

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) Reduction of Matrix Size for Filtering Labeled Graph 
Sub Title (in English)  
Keyword(1) Subgraph Isomorphism  
Keyword(2) Interlace Theorem  
Keyword(3) Eigenvalue  
Keyword(4) Labeled Graphs  
Keyword(5) Filtering  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Hideki Nagaya  
1st Author's Affiliation Tokyo Metropolitan University (Tokyo Metropolitan Univ.)
2nd Author's Name Kaoru Katayama  
2nd Author's Affiliation Tokyo Metropolitan University (Tokyo Metropolitan Univ.)
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Speaker Author-1 
Date Time 2007-07-04 08:00:00 
Presentation Time 25 minutes 
Registration for DE 
Paper # DE2007-100 
Volume (vol) vol.107 
Number (no) no.131 
Page pp.467-472 
#Pages 6 
Date of Issue 2007-06-25 (DE) 

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