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Paper Abstract and Keywords
Presentation 2026-03-04 13:40
Generating diverse routes with lengths within a specified range
Satoru Mutoh, Yuki Amano, Keiko Imai (Chuo Univ.) COMP2025-24
Abstract (in Japanese) (See Japanese page) 
(in English) This study addresses a common problem: people often use similar walking routes, resulting in monotony in their daily strolling experience. In this study, we propose a method for generating diverse routes of lengths within a specified range. We define the ``similarity'' between two routes as the total length of the shared edges, and formulate the problem as one of minimizing the total similarity across all pairs in the generated route set.

This means minimizing the average shared edge length between consecutive routes when routes are selected based on random permutations. As the problem is NP-hard, we introduce a heuristic algorithm based on a local search that reconnects routes using a bidirectional breadth-first search.

Experimental results using real-world road network data from Tokyo and Kyoto demonstrate that the proposed method effectively generates diverse route sets with well-distributed edge usage patterns. The proposed approach has several practical applications, including daily strolling route recommendation, test scenario generation for autonomous driving systems, and other route scheduling problems requiring diversity.
Keyword (in Japanese) (See Japanese page) 
(in English) route generation / route planning / route length / road network / multiple routes / diversity / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 390, COMP2025-24, pp. 14-21, March 2026.
Paper # COMP2025-24 
Date of Issue 2026-02-25 (COMP) 
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 COMP2025-24

Conference Information
Committee COMP  
Conference Date 2026-03-04 - 2026-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Chuo University Korakuen Campus Building 6 4F Room 6402 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Theoretical Computer Science, General 
Paper Information
Registration To COMP 
Conference Code 2026-03-COMP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Generating diverse routes with lengths within a specified range 
Sub Title (in English)  
Keyword(1) route generation  
Keyword(2) route planning  
Keyword(3) route length  
Keyword(4) road network  
Keyword(5) multiple routes  
Keyword(6) diversity  
Keyword(7)  
Keyword(8)  
1st Author's Name Satoru Mutoh  
1st Author's Affiliation Chuo University (Chuo Univ.)
2nd Author's Name Yuki Amano  
2nd Author's Affiliation Chuo University (Chuo Univ.)
3rd Author's Name Keiko Imai  
3rd Author's Affiliation Chuo University (Chuo Univ.)
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Speaker Author-1 
Date Time 2026-03-04 13:40:00 
Presentation Time 30 minutes 
Registration for COMP 
Paper # COMP2025-24 
Volume (vol) vol.125 
Number (no) no.390 
Page pp.14-21 
#Pages 8 
Date of Issue 2026-02-25 (COMP) 

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