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Paper Abstract and Keywords
Presentation 2025-03-07 16:00
Logarithmic Random Bidding for Roulette Wheel Selection in Parallel with Precise Probabilities
Koji Nakano (Hiroshima U.) COMP2024-32
Abstract (in Japanese) (See Japanese page) 
(in English) The roulette wheel selection is a critical process in heuristic algorithms, enabling the probabilistic choice of items based on assigned fitness values. It selects an item with a probability proportional to its fitness value. This technique is commonly employed in ant-colony algorithms to randomly determine the next city to visit when solving the traveling salesman problem. Our study focuses on parallel algorithms designed to select one of multiple processors, each associated with fitness values, using random wheel selection. We propose a novel approach called logarithmic random bidding, which achieves an expected runtime logarithmic to the number of processors with non-zero fitness values, using the CRCW-PRAM model with a shared memory of constant size. Notably, the logarithmic random bidding technique demonstrates efficient performance, particularly in scenarios where only a few processors are assigned non-zero fitness values.
Keyword (in Japanese) (See Japanese page) 
(in English) Parallel Algorithm / heuristic / / / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 424, COMP2024-32, pp. 43-45, March 2025.
Paper # COMP2024-32 
Date of Issue 2025-02-28 (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 COMP2024-32

Conference Information
Committee COMP  
Conference Date 2025-03-07 - 2025-03-07 
Place (in Japanese) (See Japanese page) 
Place (in English) Ochanomizu University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Theoretical Computer Science, etc 
Paper Information
Registration To COMP 
Conference Code 2025-03-COMP 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Logarithmic Random Bidding for Roulette Wheel Selection in Parallel with Precise Probabilities 
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Keyword(1) Parallel Algorithm  
Keyword(2) heuristic  
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1st Author's Name Koji Nakano  
1st Author's Affiliation Hiroshima University (Hiroshima U.)
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Speaker Author-1 
Date Time 2025-03-07 16:00:00 
Presentation Time 30 minutes 
Registration for COMP 
Paper # COMP2024-32 
Volume (vol) vol.124 
Number (no) no.424 
Page pp.43-45 
#Pages 3 
Date of Issue 2025-02-28 (COMP) 

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