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Paper Abstract and Keywords
Presentation 2026-03-17 14:50
Improving the Global Search Performance of Hermit Crab Optimization Algorithm Using Lévy Distribution
Toshiki Mizoguchi, Tomoyuki Sasaki, Hidehiro Nakano (TCU) CCS2025-67
Abstract (in Japanese) (See Japanese page) 
(in English) This study aims to improve the global search capability of the Hermit Crab Optimization Algorithm (HCOA) for high-dimensional and multimodal optimization problems. The conventional HCOA employs Gaussian-distribution-based candidate generation, which provides strong local search performance but suffers from insufficient global exploration. To
address this limitation, we propose an improved method, HCOA-Levy, which introduces a Levy distribution with heavy-tailed characteristics into the historical path exploration mechanism. In addition, a probability parameter for applying Levy Flight is incorporated to balance local and global search. Sensitivity analysis identifies an appropriate probability setting. Experimental results on the CEC2017 benchmark functions demonstrate that the proposed method achieves performance comparable to or better than conventional HCOA and PSO on unimodal and some multimodal functions.
Keyword (in Japanese) (See Japanese page) 
(in English) Optimization Algorithm / Hermit Crab Optimization / Levy Flight / High-Dimensional Optimization / Global Search / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 416, CCS2025-67, pp. 76-81, March 2026.
Paper # CCS2025-67 
Date of Issue 2026-03-10 (CCS) 
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 CCS2025-67

Conference Information
Committee CCS  
Conference Date 2026-03-17 - 2026-03-18 
Place (in Japanese) (See Japanese page) 
Place (in English) RUSUTSU RESORT 
Topics (in Japanese) (See Japanese page) 
Topics (in English) CCS, etc. 
Paper Information
Registration To CCS 
Conference Code 2026-03-CCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improving the Global Search Performance of Hermit Crab Optimization Algorithm Using Lévy Distribution 
Sub Title (in English)  
Keyword(1) Optimization Algorithm  
Keyword(2) Hermit Crab Optimization  
Keyword(3) Levy Flight  
Keyword(4) High-Dimensional Optimization  
Keyword(5) Global Search  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Toshiki Mizoguchi  
1st Author's Affiliation Tokyo City University (TCU)
2nd Author's Name Tomoyuki Sasaki  
2nd Author's Affiliation Tokyo City University (TCU)
3rd Author's Name Hidehiro Nakano  
3rd Author's Affiliation Tokyo City University (TCU)
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Speaker Author-1 
Date Time 2026-03-17 14:50:00 
Presentation Time 20 minutes 
Registration for CCS 
Paper # CCS2025-67 
Volume (vol) vol.125 
Number (no) no.416 
Page pp.76-81 
#Pages 6 
Date of Issue 2026-03-10 (CCS) 

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