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Paper Abstract and Keywords
Presentation 2021-03-05 16:30
[Invited Lecture] A Hazardous Spot Detection Framework by Mobile Sensing and V2V Opportunistic Networks
Yoshito Watanabe, Yozo Shoji (NICT) SR2020-88
Abstract (in Japanese) (See Japanese page) 
(in English) This study proposes a framework to detect hazardous spots on roads by combining mobile sensing on commercial-use vehicles with vehicle-to-vehicle (V2V) opportunistic networking. In the proposed system, a vehicle periodically makes a tentative decision regarding the state of the road using its own sensing data by a machine learning (ML)-based technique; however, the final decision is made by applying the Viterbi algorithm. In addition, our study introduced a V2V cooperative data processing technique to achieve higher accuracy in the detection of perilous spots. Numerical simulation analyses were conducted by using the dataset of "working car project" commissioned by NICT. It was shown that the Viterbi algorithm significantly improved the accuracy of detecting hazardous spots. It was also demonstrated that the proposed V2V cooperative framework had the potential to enhance the accuracy of detecting hazardous spots for all the vehicles in a community.
Keyword (in Japanese) (See Japanese page) 
(in English) Mobile sensing / Hazardous spot detection / Hidden Markov model / Viterbi algorithm / EM algorithm / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 405, SR2020-88, pp. 91-98, March 2021.
Paper # SR2020-88 
Date of Issue 2021-02-24 (SR) 
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 SR2020-88

Conference Information
Committee RCS SR SRW  
Conference Date 2021-03-03 - 2021-03-05 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To SR 
Conference Code 2021-03-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Hazardous Spot Detection Framework by Mobile Sensing and V2V Opportunistic Networks 
Sub Title (in English)  
Keyword(1) Mobile sensing  
Keyword(2) Hazardous spot detection  
Keyword(3) Hidden Markov model  
Keyword(4) Viterbi algorithm  
Keyword(5) EM algorithm  
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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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Speaker Author-1 
Date Time 2021-03-05 16:30:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2020-88 
Volume (vol) vol.120 
Number (no) no.405 
Page pp.91-98 
#Pages 8 
Date of Issue 2021-02-24 (SR) 

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