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Paper Abstract and Keywords
Presentation 2015-05-21 11:20
Analizing Geographical Usage of CDN and Original Content of Website
Noriaki Kamiyama, Yuusuke Nakano (Osaka Univ./NTT), Kohei Shiomoto (NTT), Go Hasegawa, Masayuki Murata, Hideo Miyahara (Osaka Univ.) NS2015-18
Abstract (in Japanese) (See Japanese page) 
(in English) Modern websites consist of many rich objects dynamically produced by servers and client terminals at diverse locations. Consequently, we face complications in understanding the communication structure generated when accessing websites. To reduce the response time at browsed websites, many objects of websites are delivered using content delivery networks (CDNs), in which data objects are delivered from cache servers located close to user terminals. Although the web response time has been expected to be reduced by using CDNs, the actual effect of CDNs on the reduction of web response time depends on the geographical deployment of website objects. However, no works have investigated the tendency of geographical deployment of website objects. In this paper, to answer this fundamental question, we measure the communication structure of traffic generated when accessing about the 1,000 most popular websites from 12 locations in the world, and we obtain various findings. For example, it will be desirable to give high priority to entertainment websites at nighttime, whereas give high priority to business-related websites at daytime.
Keyword (in Japanese) (See Japanese page) 
(in English) Web / CDN / active measurement / / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 41, NS2015-18, pp. 21-26, May 2015.
Paper # NS2015-18 
Date of Issue 2015-05-14 (NS) 
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 NS2015-18

Conference Information
Committee NS  
Conference Date 2015-05-21 - 2015-05-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To NS 
Conference Code 2015-05-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Analizing Geographical Usage of CDN and Original Content of Website 
Sub Title (in English)  
Keyword(1) Web  
Keyword(2) CDN  
Keyword(3) active measurement  
1st Author's Name Noriaki Kamiyama  
1st Author's Affiliation Osaka University/NTT (Osaka Univ./NTT)
2nd Author's Name Yuusuke Nakano  
2nd Author's Affiliation Osaka University/NTT (Osaka Univ./NTT)
3rd Author's Name Kohei Shiomoto  
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
4th Author's Name Go Hasegawa  
4th Author's Affiliation Osaka University (Osaka Univ.)
5th Author's Name Masayuki Murata  
5th Author's Affiliation Osaka University (Osaka Univ.)
6th Author's Name Hideo Miyahara  
6th Author's Affiliation Osaka University (Osaka Univ.)
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Date Time 2015-05-21 11:20:00 
Presentation Time 25 
Registration for NS 
Paper # IEICE-NS2015-18 
Volume (vol) IEICE-115 
Number (no) no.41 
Page pp.21-26 
#Pages IEICE-6 
Date of Issue IEICE-NS-2015-05-14 

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