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Paper Abstract and Keywords
Presentation 2023-07-01 10:20
Solving the Traveling Salesman Problem Using Oscillator Interaction
Tomoaki Kinugasa (Tohoku Univ), Futo Ono, Kazuhiro Sakamoto (TMPU) NC2023-23 IBISML2023-23
Abstract (in Japanese) (See Japanese page) 
(in English) In this study, a single Kuramoto oscillator is considered as a city, and the traveling salesman problem is tackled using their exclusive interaction between oscillators. Computer experiments showed that the phase relations that converged regardless of the number of oscillators were broadly classified into two types: solutions that reflected the shortest path or a path close to it, and two-cluster solutions that were divided into two groups with a phase difference π. In both cases, the solution obtained was largely determined by the distance between the cities implemented as the strength of the exclusive force between the oscillators, and did not depend significantly on the initial values of the calculation. The results of these computer experiments and the discussion of the potentials indicate that the oscillator system always converges to a global solution. Since oscillatory phenomena are widely observed in living systems, the results of this study suggest that the interaction between oscillators is crucial in obtaining a globally good solution/state for a living system.
Keyword (in Japanese) (See Japanese page) 
(in English) Traveling Salesman Problem / Kuramoto Oscillator / Global Minimum / / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 90, NC2023-23, pp. 149-152, June 2023.
Paper # NC2023-23 
Date of Issue 2023-06-22 (NC, IBISML) 
ISSN 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 NC2023-23 IBISML2023-23

Conference Information
Committee NC IBISML IPSJ-BIO IPSJ-MPS  
Conference Date 2023-06-29 - 2023-07-01 
Place (in Japanese) (See Japanese page) 
Place (in English) OIST Conference Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To NC 
Conference Code 2023-06-NC-IBISML-BIO-MPS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Solving the Traveling Salesman Problem Using Oscillator Interaction 
Sub Title (in English)  
Keyword(1) Traveling Salesman Problem  
Keyword(2) Kuramoto Oscillator  
Keyword(3) Global Minimum  
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1st Author's Name Tomoaki Kinugasa  
1st Author's Affiliation Tohoku University (Tohoku Univ)
2nd Author's Name Futo Ono  
2nd Author's Affiliation Tohoku Medical and Pharmaceutical University (TMPU)
3rd Author's Name Kazuhiro Sakamoto  
3rd Author's Affiliation Tohoku Medical and Pharmaceutical University (TMPU)
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Speaker Author-3 
Date Time 2023-07-01 10:20:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # NC2023-23, IBISML2023-23 
Volume (vol) vol.123 
Number (no) no.90(NC), no.91(IBISML) 
Page pp.149-152 
#Pages 4 
Date of Issue 2023-06-22 (NC, IBISML) 

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