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Paper Abstract and Keywords
Presentation 2021-03-04 14:15
Verification of delivery performance of the on-demand video delivery system
Kenichi Shimizu, Yasuhiko Higaki, Shigeo Fujimoto, Yasuo Sugai (Chiba Univ.) LOIS2020-50
Abstract (in Japanese) (See Japanese page) 
(in English) The on-demand class video delivery system developed by the authors has
achieved stable operation without any major system trouble during the
past year, when the environment changed rapidly due to the COVID-19
pandemic. In this paper, we summarize the results of the system's
operation in the past year under the unprecedented circumstances of
about 10,000 undergraduate students and about 7,000 courses offered,
and summarize the data on the system's video delivery performance
to verify the effectiveness of the system.
Keyword (in Japanese) (See Japanese page) 
(in English) distance learning / Moodle / HTTP Live Streaming (HLS) / multi bit rate / data traffic reduction / on-demand video distribution / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 417, LOIS2020-50, pp. 18-23, March 2021.
Paper # LOIS2020-50 
Date of Issue 2021-02-25 (LOIS) 
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 LOIS2020-50

Conference Information
Committee LOIS  
Conference Date 2021-03-04 - 2021-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To LOIS 
Conference Code 2021-03-LOIS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Verification of delivery performance of the on-demand video delivery system 
Sub Title (in English)  
Keyword(1) distance learning  
Keyword(2) Moodle  
Keyword(3) HTTP Live Streaming (HLS)  
Keyword(4) multi bit rate  
Keyword(5) data traffic reduction  
Keyword(6) on-demand video distribution  
1st Author's Name Kenichi Shimizu  
1st Author's Affiliation Chiba University (Chiba Univ.)
2nd Author's Name Yasuhiko Higaki  
2nd Author's Affiliation Chiba University (Chiba Univ.)
3rd Author's Name Shigeo Fujimoto  
3rd Author's Affiliation Chiba University (Chiba Univ.)
4th Author's Name Yasuo Sugai  
4th Author's Affiliation Chiba University (Chiba Univ.)
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Date Time 2021-03-04 14:15:00 
Presentation Time 25 
Registration for LOIS 
Paper # IEICE-LOIS2020-50 
Volume (vol) IEICE-120 
Number (no) no.417 
Page pp.18-23 
#Pages IEICE-6 
Date of Issue IEICE-LOIS-2021-02-25 

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