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Paper Abstract and Keywords
Presentation 2026-03-17 09:50
Cache Placement Design for Content Delivery with Partially Releasable Cache Memory
Chihiro Koike, Tetsunao Matsuta (Saitama Univ.) IT2025-106 ISEC2025-114 WBS2025-88 RCC2025-87
Abstract (in Japanese) (See Japanese page) 
(in English) Caching using the coded caching method proposed by Maddah-Ali and Niesen is effective for reducing communication load during content delivery, and there are various related studies. Some of these studies focus on the case where a user's cache memory is partially released. However, existing methods do not fully exploit the entire cache memory. In this study, we propose a method that efficiently utilizes all of the cache memory by introducing a stepwise algorithmic approach. We also show that the proposed method can reduce communication load compared to existing methods.
Keyword (in Japanese) (See Japanese page) 
(in English) coded caching / cache memory / caching / content delivery / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 404, IT2025-106, pp. 169-174, March 2026.
Paper # IT2025-106 
Date of Issue 2026-03-09 (IT, ISEC, WBS, RCC) 
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 IT2025-106 ISEC2025-114 WBS2025-88 RCC2025-87

Conference Information
Committee IT WBS ISEC RCC  
Conference Date 2026-03-16 - 2026-03-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagano Campus, Shinshu University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Joint Workshop of ISEC, IT, RCC, and WBS 
Paper Information
Registration To IT 
Conference Code 2026-03-IT-WBS-ISEC-RCC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Cache Placement Design for Content Delivery with Partially Releasable Cache Memory 
Sub Title (in English)  
Keyword(1) coded caching  
Keyword(2) cache memory  
Keyword(3) caching  
Keyword(4) content delivery  
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1st Author's Name Chihiro Koike  
1st Author's Affiliation Saitama University (Saitama Univ.)
2nd Author's Name Tetsunao Matsuta  
2nd Author's Affiliation Saitama University (Saitama Univ.)
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Speaker Author-1 
Date Time 2026-03-17 09:50:00 
Presentation Time 25 minutes 
Registration for IT 
Paper # IT2025-106, ISEC2025-114, WBS2025-88, RCC2025-87 
Volume (vol) vol.125 
Number (no) no.404(IT), no.405(ISEC), no.406(WBS), no.407(RCC) 
Page pp.169-174 
#Pages 6 
Date of Issue 2026-03-09 (IT, ISEC, WBS, RCC) 

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