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| Presentation | 2007-12-20 14:15 A Method for solving Asymmetric Traveling Salesman Problems using Block Shift Operations and Point Classification by Self-organizing Maps Toshihiro Tachibana, Masaharu Adachi (Tokyo Denki Univ.)  NLP2007-127 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this report, an improved method for solving Asymmetric Travelling Salesman Problems (ATSP) is proposed. Where the asymmetric TSP means that the costs for travel between a city and another one are not symmetric. The proposed method is based on the previous work by the authors. The decisions of the cities to be exchanged are made by a result of the point classification based on indices of symmetry and asymmetry by a trained self-organizing map (SOM). The SOM is used for determining sets of cities to be blocked and the blocks to be exchanged. In addition, the Block Shift operation uses the information obtained by the SOM. The improved method can obtain the solutions of almost the same accuracy as that of the previous method with shorter computational time than that of the previous one. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Asymmetric Traveling Salesman Problems / Self-organizing Maps / Block Shift Operations / Hopfield Neural Networks / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 400, NLP2007-127, pp. 35-40, Dec. 2007. | |
| Paper # | NLP2007-127 | |
| Date of Issue | 2007-12-13 (NLP) | |
| ISSN | Print edition: ISSN 0913-5685 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 | NLP2007-127 |
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| Conference Information | |
| Committee | NLP |
| Conference Date | 2007-12-19 - 2007-12-20 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | NLP |
| Conference Code | 2007-12-NLP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Method for solving Asymmetric Traveling Salesman Problems using Block Shift Operations and Point Classification by Self-organizing Maps |
| Sub Title (in English) | |
| Keyword(1) | Asymmetric Traveling Salesman Problems |
| Keyword(2) | Self-organizing Maps |
| Keyword(3) | Block Shift Operations |
| Keyword(4) | Hopfield Neural Networks |
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| 1st Author's Name | Toshihiro Tachibana |
| 1st Author's Affiliation | Graduate school of Engineering, Tokyo Denki University (Tokyo Denki Univ.) |
| 2nd Author's Name | Masaharu Adachi |
| 2nd Author's Affiliation | Graduate school of Engineering, Tokyo Denki University (Tokyo Denki Univ.) |
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| Speaker | Author-1 |
| Date Time | 2007-12-20 14:15:00 |
| Presentation Time | 25 minutes |
| Registration for | NLP |
| Paper # | NLP2007-127 |
| Volume (vol) | vol.107 |
| Number (no) | no.400 |
| Page | pp.35-40 |
| #Pages | 6 |
| Date of Issue | 2007-12-13 (NLP) |
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