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Paper Abstract and Keywords
Presentation 2018-03-02 11:30
The Required Conditions for Content Reallocation Algorithm with Popularity Variation on Real Networks
Shohei Imai, Katsunori Yamaoka (Tokyo Tech) IN2017-124
Abstract (in Japanese) (See Japanese page) 
(in English) A conventional method which considers popularity per file size and storage size has been proposed. However, the content reallocation due to popularity changes with the passage of time is not taken into account in this method. Therefore, content reallocation with conventional method is expected to generate large amount of traffic. In contrast, we have proposed a content reallocation algorithm which considers original placement of each content, and used a threshold to control the replacements of contents on every node. We have also showed that this method reduces propagation delay and generated traffic.However, the reduction effect of our reallocation algorithm on real networks is not shown, because we did not study the calculation method of the threshold on real networks. In this paper, computer simulation showed that our proposed method reduces more propagation delay than the conventional method on real networks. We also showed the required conditions for our proposed method by describing the relationship between the propagation delay and the generated traffic.
Keyword (in Japanese) (See Japanese page) 
(in English) Content Delivery / Content Reallocation / Propagation Delay / Generated Traffic / Popularity of Contents / Storage Limitaion / Initial Allocation / Required Conditions  
Reference Info. IEICE Tech. Rep., vol. 117, no. 460, IN2017-124, pp. 207-212, March 2018.
Paper # IN2017-124 
Date of Issue 2018-02-22 (IN) 
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF IN2017-124

Conference Information
Committee NS IN  
Conference Date 2018-03-01 - 2018-03-02 
Place (in Japanese) (See Japanese page) 
Place (in English) Phoenix Seagaia Resort 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To IN 
Conference Code 2018-03-NS-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) The Required Conditions for Content Reallocation Algorithm with Popularity Variation on Real Networks 
Sub Title (in English)  
Keyword(1) Content Delivery  
Keyword(2) Content Reallocation  
Keyword(3) Propagation Delay  
Keyword(4) Generated Traffic  
Keyword(5) Popularity of Contents  
Keyword(6) Storage Limitaion  
Keyword(7) Initial Allocation  
Keyword(8) Required Conditions  
1st Author's Name Shohei Imai  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
2nd Author's Name Katsunori Yamaoka  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
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Date Time 2018-03-02 11:30:00 
Presentation Time 20 
Registration for IN 
Paper # IEICE-IN2017-124 
Volume (vol) IEICE-117 
Number (no) no.460 
Page pp.207-212 
#Pages IEICE-6 
Date of Issue IEICE-IN-2018-02-22 

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