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Paper Abstract and Keywords
Presentation 2018-07-20 15:45
An Analysis of the Evolution of Influence of Central Users on Social Media
Minami Uehara, Sho Tsugawa (Tsukuba univ.) CQ2018-44
Abstract (in Japanese) (See Japanese page) 
(in English) Finding influencers who can spread information to many other users on social media is important for several application domains including viral marketing. In social networks representing relationships among social media users, nodes with high centrality measures have been shown to have high influence on social media. However, most of the existing studies focus on the influence of nodes only at a specific time, and ignore the time evolution of their influence. This paper investigates the time evolution of the influence of central nodes in a social network. We use Twitter data during one year period of 2016, which include follow relationships and records of retweets among 300 thousand users. We identify central nodes in a social network as of January, 2016. We define the influence of a node as the number of retweets to the tweets posted by the node. Our results show that the influence of central nodes are surprisingly stable over one year period.
Keyword (in Japanese) (See Japanese page) 
(in English) Social media / Twitter / Influence / Centrality / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 140, CQ2018-44, pp. 75-80, July 2018.
Paper # CQ2018-44 
Date of Issue 2018-07-12 (CQ) 
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 CQ2018-44

Conference Information
Committee CQ  
Conference Date 2018-07-19 - 2018-07-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Assessment, Measurement and Control of QoE and QoS, etc. 
Paper Information
Registration To CQ 
Conference Code 2018-07-CQ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An Analysis of the Evolution of Influence of Central Users on Social Media 
Sub Title (in English)  
Keyword(1) Social media  
Keyword(2) Twitter  
Keyword(3) Influence  
Keyword(4) Centrality  
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1st Author's Name Minami Uehara  
1st Author's Affiliation University of Tsukuba (Tsukuba univ.)
2nd Author's Name Sho Tsugawa  
2nd Author's Affiliation University of Tsukuba (Tsukuba univ.)
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Speaker Author-1 
Date Time 2018-07-20 15:45:00 
Presentation Time 25 minutes 
Registration for CQ 
Paper # CQ2018-44 
Volume (vol) vol.118 
Number (no) no.140 
Page pp.75-80 
#Pages 6 
Date of Issue 2018-07-12 (CQ) 

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