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Hyuckjin Choi
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Wi-cal: Wifi sensing and machine learning based device-free crowd counting and localization
H Choi, M Fujimoto, T Matsui, S Misaki, K Yasumoto
IEEE Access 10, 24395-24410, 2022
442022
Non-contact in-home activity recognition system utilizing Doppler sensors
S Misaki, K Umakoshi, T Matsui, H Choi, M Fujimoto, K Yasumoto
Adjunct Proceedings of the 2021 International Conference on Distributed ¡¦, 2021
102021
Non-contact person identification by piezoelectric-based gait vibration sensing
K Umakoshi, T Matsui, M Yoshida, H Choi, M Fujimoto, H Suwa, ...
Advanced Information Networking and Applications: Proceedings of the 35th ¡¦, 2021
72021
Simultaneous crowd estimation in counting and localization using WiFi CSI
H Choi, T Matsui, S Misaki, A Miyaji, M Fujimoto, K Yasumoto
2021 International Conference on Indoor Positioning and Indoor Navigation ¡¦, 2021
62021
Wi-nod: Head nodding recognition by wi-fi csi toward communicative support for quadriplegics
MRM Bastwesy, K Kai, H Choi, S Ishida, Y Arakawa
2023 IEEE Wireless Communications and Networking Conference (WCNC), 1-6, 2023
52023
Analysis on nursing care activity related stress level for reduction of caregiving workload
A Miyaji, T Matsui, Z Zhang, H Choi, M Fujimoto, K Yasumoto
50th International Conference on Parallel Processing Workshop, 1-8, 2021
42021
Simultaneous crowd counting and localization by WiFi CSI
H Choi, T Matsui, M Fujimoto, K Yasumoto
Proceedings of the 22nd International Conference on Distributed Computing ¡¦, 2021
32021
RSS bias compensation in BLE beacon based positioning system
H Choi, H Jin, SC Kim
2017 Ninth International Conference on Ubiquitous and Future Networks (ICUFN ¡¦, 2017
32017
Design and implementation of nodding recognition system based on chair sway
T Hayashida, Y Nakamura, H Choi, Y Arakawa
2023 Fourteenth International Conference on Mobile Computing and Ubiquitous ¡¦, 2023
22023
Tracking On-Desk Gestures Based on Wi-Fi CSI on Low-Cost Microcontroller
MRM Bastwesy, H Choi, Y Arakawa
2023 Fourteenth International Conference on Mobile Computing and Ubiquitous ¡¦, 2023
12023
Location-Independent Doppler Sensing System for Device-Free Daily Living Activity Recognition
S Misaki, M Yoshida, H Choi, T Matsui, M Fujimoto, K Yasumoto
IEEE Access, 2023
12023
Bilatangulation: A Novel Measurement Error Compensation Method for Wi-Fi Indoor Positioning with Two Anchors
CH Lee, HJ Choi, Y Arakawa, DH Kim, JD Kim
IEEE Access, 2024
2024
Poster: Desk Activity Recognition Using On-desk Low-cost WiFi Transceiver
H Choi, Y Nakamura, S Fukushima, Y Arakawa
Proceedings of the 22nd Annual International Conference on Mobile Systems ¡¦, 2024
2024
Poster: Annotation Assist System Using Backscatter Tags for WiFi CSI-based Indoor Activity Recognition
K Kai, H Choi, Y Nakamura, Y Arakawa
Proceedings of the 22nd Annual International Conference on Mobile Systems ¡¦, 2024
2024
Privacy-aware Quantitative Measurement of Psychological State in Meetings based on Non-verbal Cues
T Hayashida, Y Nakamura, H Choi, Y Arakawa
2024 IEEE International Conference on Pervasive Computing and Communications ¡¦, 2024
2024
Design and Implementation of Persuasive Public Wi-Fi to Derive Prosocial Network Usage
N Eguchi, H Choi, Y Nakamura, S Fukushima, Y Arakawa
2024 International Conference on Information Networking (ICOIN), 351-356, 2024
2024
ChatGPT-based Application of Text Message Integration and Prioritization for Smartphone Push Notifications
TY Yang, H Choi, Y Nakamura, Y Arakawa
ï×ÜÃ処×â学会ð¯ 86 üÞîï国ÓÞ会 6, 02, 2024
2024
Investigation on Deployment Pattern of Wi-Fi Transceivers for CSI-Based Indoor Localization and Activity Recognition
K Kai, H Choi, Y Arakawa
2023 Fourteenth International Conference on Mobile Computing and Ubiquitous ¡¦, 2023
2023
WatchLogger: Keyboard Typing Words Recognition Based on Smartwatch
G Li, Y Arakawa, Y Nakamura, H Choi, S Fukushima, W Wang
2023 Fourteenth International Conference on Mobile Computing and Ubiquitous ¡¦, 2023
2023
Counting Nods from Chair Rocking
T Hayashida, Y Nakamura, H Choi, Y Arakawa
Proceedings of the 13th International Conference on the Internet of Things ¡¦, 2023
2023
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