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Paper Abstract and Keywords
Presentation 2018-02-28 15:40
A community-based anomaly detection system by the synergetic use of mobile sensing and delay tolerant networks with cooperative data processing technique
Yoshito Watanabe, Yozo Shoji (NICT) SR2017-115
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a novel cooperative anomaly detection system that uses mobile sensing and delay tolerant network (DTN) technologies. As an example application, the anomaly detection system in which vehicles detect dangerous states of the road that could cause traffic accidents and/or traffic jams is considered. Assuming that the predicted road states include some prediction errors, a hidden Markov model (HMM) is introduced for representing the spatial relationship among the road state sequence. Then, EM algorithm is employed to estimate the HMM parameters. The reliable road states shared with other vehicles by the DTN technology are combined with the locally predicted sequence to perform trellis pruning in the Viterbi algorithm, which further improves the accuracy of road state estimation.
Keyword (in Japanese) (See Japanese page) 
(in English) Cooperative anomaly detection / V2V communications / delay tolerant networks / hidden Markov model / EM algorithm / Viterbi algorithm / trellis pruning /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 457, SR2017-115, pp. 25-30, Feb. 2018.
Paper # SR2017-115 
Date of Issue 2018-02-21 (SR) 
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 SR2017-115

Conference Information
Committee RCS SR SRW  
Conference Date 2018-02-28 - 2018-03-02 
Place (in Japanese) (See Japanese page) 
Place (in English) YRP 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To SR 
Conference Code 2018-02-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A community-based anomaly detection system by the synergetic use of mobile sensing and delay tolerant networks with cooperative data processing technique 
Sub Title (in English)  
Keyword(1) Cooperative anomaly detection  
Keyword(2) V2V communications  
Keyword(3) delay tolerant networks  
Keyword(4) hidden Markov model  
Keyword(5) EM algorithm  
Keyword(6) Viterbi algorithm  
Keyword(7) trellis pruning  
1st Author's Name Yoshito Watanabe  
1st Author's Affiliation National Institute of Information and Communications Technology (NICT)
2nd Author's Name Yozo Shoji  
2nd Author's Affiliation National Institute of Information and Communications Technology (NICT)
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Date Time 2018-02-28 15:40:00 
Presentation Time 25 
Registration for SR 
Paper # SR2017-115 
Volume (vol) 117 
Number (no) no.457 
Page pp.25-30 
Date of Issue 2018-02-21 (SR) 

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