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Paper Abstract and Keywords
Presentation 2024-03-01 11:10
Investigating Feasibility of In-home Living Activity Recognition System using Frequency Shift Backscatter Tags
Hikoto Iseda, Keiichi Yasumoto (NAIST), Akira Uchiyama (OU), Teruo Higashino (KTU) SeMI2023-82
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, numerous in-home activity recognition methods using radio waves have been proposed. Specifically, methods have been developed to capture changes in the radio wave environment that occur due to human activities, utilizing WiFi Channel State Information (CSI) and tags that perform backscatter communication. However, these methods face challenges in practical application to real-life living environments, including model environmental dependency and coexistence with other communication channels. Additionally, their performance in noisy environments with numerous obstacles and radio waves has not been sufficiently verified. Therefore, this study investigates the extent to which activity recognition using backscatter tags is possible with accuracy in an actual living environment. Implementing a system composed of WiFi transceivers, backscatter tags, and an activity recognition model in the NAIST Smart Home, a replicated real-life environment, and conducting activity recognition experiments, we achieved a recognition accuracy of 92.6% for seven types of in-home living activities.
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Reference Info. IEICE Tech. Rep., vol. 123, no. 400, SeMI2023-82, pp. 66-71, Feb. 2024.
Paper # SeMI2023-82 
Date of Issue 2024-02-22 (SeMI) 
ISSN Online edition: ISSN 2432-6380
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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)
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Conference Information
Committee SeMI IPSJ-UBI IPSJ-MBL  
Conference Date 2024-02-29 - 2024-03-01 
Place (in Japanese) (See Japanese page) 
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Paper Information
Registration To SeMI 
Conference Code 2024-02-SeMI-UBI-MBL 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Investigating Feasibility of In-home Living Activity Recognition System using Frequency Shift Backscatter Tags 
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1st Author's Name Hikoto Iseda  
1st Author's Affiliation Nara Institute of Science and Technology (NAIST)
2nd Author's Name Keiichi Yasumoto  
2nd Author's Affiliation Nara Institute of Science and Technology (NAIST)
3rd Author's Name Akira Uchiyama  
3rd Author's Affiliation Osala University (OU)
4th Author's Name Teruo Higashino  
4th Author's Affiliation Kyoto Tachibana University (KTU)
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Speaker Author-1 
Date Time 2024-03-01 11:10:00 
Presentation Time 20 minutes 
Registration for SeMI 
Paper # SeMI2023-82 
Volume (vol) vol.123 
Number (no) no.400 
Page pp.66-71 
#Pages 6 
Date of Issue 2024-02-22 (SeMI) 

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