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Paper Abstract and Keywords
Presentation 2019-01-23 13:50
A Solving Method using The Chaos Search for The Vehicle Routing Problems with Soft Time Window Constraints
Daiki Watanabe, Takayuki Kimura (NIT) NLP2018-105
Abstract (in Japanese) (See Japanese page) 
(in English) Because of rapid increase of delivery goods and truck driver shortage, efficient delivery routes that minimize vehicle usage and their total distances considering transporting times of drivers and time windows of customers are necessary for home delivery service companies. Constructing these efficient delivery routes are realized by solving the vehicle routing problems with time windows. To solve these problems, the chaotic search method has already been proposed, and this method shows good approximated values for the benchmark problems of vehicle routing problems with time windows. In this method, two local search methods, the CROSS-exchange and 2-opt methods are operated by the chaotic neural networks. In previous study, the chaotic search method was applied for solving the vehicle routing problems with hard time window constraints. In this study, we evaluate the chaotic search method for the vehicle routing problems with the soft time window constraints. Numerical experiments then show that the chaotic search method for solving the vehicle routing problems with the soft time window constraints shows good approximated values as compared to the conventional chaotic search and tabu search methods.
Keyword (in Japanese) (See Japanese page) 
(in English) Chaos Search / Chaos Neural Network / Vehicle Routing Problem / Combinatorial Optimization / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 413, NLP2018-105, pp. 51-56, Jan. 2019.
Paper # NLP2018-105 
Date of Issue 2019-01-16 (NLP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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)
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Conference Information
Committee NLP NC  
Conference Date 2019-01-23 - 2019-01-24 
Place (in Japanese) (See Japanese page) 
Place (in English) The Centennial Hall, Hokkaido Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General Implementation of Neuro Computing, Analysis and Modeling of Human Science, etc. 
Paper Information
Registration To NLP 
Conference Code 2019-01-NLP-NC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Solving Method using The Chaos Search for The Vehicle Routing Problems with Soft Time Window Constraints 
Sub Title (in English)  
Keyword(1) Chaos Search  
Keyword(2) Chaos Neural Network  
Keyword(3) Vehicle Routing Problem  
Keyword(4) Combinatorial Optimization  
1st Author's Name Daiki Watanabe  
1st Author's Affiliation Nippon Institute of Technology (NIT)
2nd Author's Name Takayuki Kimura  
2nd Author's Affiliation Nippon Institute of Technology (NIT)
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Date Time 2019-01-23 13:50:00 
Presentation Time 20 
Registration for NLP 
Paper # IEICE-NLP2018-105 
Volume (vol) IEICE-118 
Number (no) no.413 
Page pp.51-56 
#Pages IEICE-6 
Date of Issue IEICE-NLP-2019-01-16 

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