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Paper Abstract and Keywords
Presentation 2008-03-14 15:30
Growing self-organizing map using input history
Yuichi Sato, Kazushi Murakoshi (Toyohashi Univ. Tech.) NC2007-198
Abstract (in Japanese) (See Japanese page) 
(in English) The Self-organizing map (SOM) has two problems on its learning.
One problem is that the SOM is dependent on the setting of the map size. The other problem is that the SOM cannot completely maintain the topological relation of the input space.
These problems can be solved by increasing the number of nodes that construct the map in the learning process.
Some methods that perform increasing and decreasing node were already proposed.
However, those methods need more parameters for the process of the map reduction.
Then, we propose the method to form the map with only increasing node without decreasing node.
Each node holds the input history in the proposal method.
Hereby, we achieve the method to form the map that maintains more the topological relation of the input space than the conventional SOM without setting of the map size.
Finally, we experimented to compare the performance of the proposal method with the conventional SOM. As a result, we showed that the proposal method can learn as well or better than the conventional SOM without setting the map size.
Keyword (in Japanese) (See Japanese page) 
(in English) Self-Organizing Map / Increasing Node / Data Visualization / Input History / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 542, NC2007-198, pp. 507-512, March 2008.
Paper # NC2007-198 
Date of Issue 2008-03-05 (NC) 
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 NC2007-198

Conference Information
Committee NC MBE  
Conference Date 2008-03-12 - 2008-03-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Tamagawa Univ 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To NC 
Conference Code 2008-03-NC-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Growing self-organizing map using input history 
Sub Title (in English)  
Keyword(1) Self-Organizing Map  
Keyword(2) Increasing Node  
Keyword(3) Data Visualization  
Keyword(4) Input History  
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1st Author's Name Yuichi Sato  
1st Author's Affiliation Toyohashi University of Technology (Toyohashi Univ. Tech.)
2nd Author's Name Kazushi Murakoshi  
2nd Author's Affiliation Toyohashi University of Technology (Toyohashi Univ. Tech.)
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Speaker Author-1 
Date Time 2008-03-14 15:30:00 
Presentation Time 20 minutes 
Registration for NC 
Paper # NC2007-198 
Volume (vol) vol.107 
Number (no) no.542 
Page pp.507-512 
#Pages 6 
Date of Issue 2008-03-05 (NC) 

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