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Paper Abstract and Keywords
Presentation 2022-12-03 16:40
Correlation-based discretization method of continuous variables in annealing machines
Yuki Furue (Saitama Univ.), Makiko Konoshima (Fujitsu), Hirotaka Tamura (DXR Lab. Inc.), Jun Ohkubo (Saitama Univ.) MBE2022-42 NC2022-64
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, annealing hardware specialized to combinatorial optimization problems has been developed, and there are some services employing some of them. However, the specialized hardware has a restriction; it can only use binary variables because its input format is the quadratic unconstrained binary optimization (QUBO) formulation. Therefore, discretization is necessary to solve problems with continuous variables. However, there is a severe constraint on the number of binary variables in the specialized hardware. Since the simple binary expansion in the previous research requires many binary variables, we need to reduce the number of binary variables due to hardware constraints. In this research, we propose a discretization method using the correlation of continuous variables. We numerically show that the proposed method reduced the number of binary variables without significantly degrading the performance of the result.
Keyword (in Japanese) (See Japanese page) 
(in English) Ising model / qubo formulation / discretization / / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 292, NC2022-64, pp. 98-103, Dec. 2022.
Paper # NC2022-64 
Date of Issue 2022-11-26 (MBE, NC) 
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 MBE2022-42 NC2022-64

Conference Information
Committee MBE NC  
Conference Date 2022-12-03 - 2022-12-03 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka Electro-Communication University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) NC, ME, etc. 
Paper Information
Registration To NC 
Conference Code 2022-12-MBE-NC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Correlation-based discretization method of continuous variables in annealing machines 
Sub Title (in English)  
Keyword(1) Ising model  
Keyword(2) qubo formulation  
Keyword(3) discretization  
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1st Author's Name Yuki Furue  
1st Author's Affiliation Saitama University (Saitama Univ.)
2nd Author's Name Makiko Konoshima  
2nd Author's Affiliation Fujitsu Limited (Fujitsu)
3rd Author's Name Hirotaka Tamura  
3rd Author's Affiliation DXR Laboratory Inc. (DXR Lab. Inc.)
4th Author's Name Jun Ohkubo  
4th Author's Affiliation Saitama University (Saitama Univ.)
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Speaker Author-1 
Date Time 2022-12-03 16:40:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # MBE2022-42, NC2022-64 
Volume (vol) vol.122 
Number (no) no.291(MBE), no.292(NC) 
Page pp.98-103 
#Pages 6 
Date of Issue 2022-11-26 (MBE, NC) 

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