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Paper Abstract and Keywords
Presentation 2010-07-09 12:40
Evaluation of User Behavior and System Availability Based on Measurement of BitTorrent
Shin Goda, Masahiro Sasabe, Tetsuya Takine (Osaka Univ.) IN2010-37
Abstract (in Japanese) (See Japanese page) 
(in English) Each user in the Peer-to-Peer (P2P) file-sharing systems potentially
tends to maximize its own benefit rather than the overall system
efficiency and performance. On the other hand, there are lots of
indistinct points left in the users' selfish behavior and its influence
on the system performance. In this paper, we measure the BitTorrent
system, which is one of the most famous P2P file-sharing systems, and
evaluate users' behavior and system availability. The measurement is
conducted through communications with a tracker which manages
information about peers sharing the files and with each of those peers.
The measurement result shows that about half of users stop opening the
file to the public within several hours after completing the file
retrieval. In addition, we show that the system is supported not only
by a few peers that remain to be providers of the file for a long term,
but also by most peers that are temporal suppliers during their own file
Keyword (in Japanese) (See Japanese page) 
(in English) P2P file-sharing system / BitTorrent / measurement / availability / users' behavior / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 116, IN2010-37, pp. 85-90, July 2010.
Paper # IN2010-37 
Date of Issue 2010-07-01 (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. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF IN2010-37

Conference Information
Committee IN  
Conference Date 2010-07-08 - 2010-07-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) QoS control, Network quality, IPv6, IP backbone network, Depandable network, Network model, etc. 
Paper Information
Registration To IN 
Conference Code 2010-07-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of User Behavior and System Availability Based on Measurement of BitTorrent 
Sub Title (in English)  
Keyword(1) P2P file-sharing system  
Keyword(2) BitTorrent  
Keyword(3) measurement  
Keyword(4) availability  
Keyword(5) users' behavior  
1st Author's Name Shin Goda  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Masahiro Sasabe  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Tetsuya Takine  
3rd Author's Affiliation Osaka University (Osaka Univ.)
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Date Time 2010-07-09 12:40:00 
Presentation Time 25 
Registration for IN 
Paper # IEICE-IN2010-37 
Volume (vol) IEICE-110 
Number (no) no.116 
Page pp.85-90 
#Pages IEICE-6 
Date of Issue IEICE-IN-2010-07-01 

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