Publications

Articles

3. S. Misaki, M. Yoshida, H. Choi, T. Matsui, M. Fujimoto, and K. Yasumoto, "Location-Independent Doppler Sensing System for Device-Free Daily Living Activity Recognition," IEEE Access, Vol. 11, pp. 127754-127768, Nov. 2023. [link]

2. M. Bastwesy, H. Choi, and Y. Arakawa, "HeMoFi4Q: Morse Communication Based on Wi-Fi and Head Motion for Quadriplegia with Environmental Robustness," IEEE Access, Vol. 11, pp. 116384-116397, Oct. 2023. [link]

1. H. Choi, M. Fujimoto, T. Matsui, S. Misaki, and K. Yasumoto, "Wi-CaL: WiFi Sensing and Machine Learning based Device-Free Crowd Counting and Localization," IEEE Access, Vol. 10, pp. 24395-24410, Mar. 2022. [link] [Student Award of Telecom Interdisciplinary Research]

International Conference ・ Workshops

17. H. Choi, Y. Nakamura, S. Fukushima, Y. Arakawa, "Poster: Desk Activity Recognition Using On-desk Low-cost WiFi," in Proceedings of the 22nd Annual International Conference on Mobile Systems, Applications, and Services (ACM MobiSys 2024), Tokyo, Japan, Jun. 2024, to be published.

16. K. Kai, H. Choi, Y. Nakamura, Y. Arakawa, "Poster: Annotation Assist System Using Backscatter Tags for WiFi CSI-based Indoor Activity Recognition," in Proceedings of the 22nd Annual International Conference on Mobile Systems, Applications, and Services (ACM MobiSys 2024), Tokyo, Japan, Jun. 2024, to be published.

15. T. Hayashida, Y. Nakamura, H. Choi, Y. Arakawa, "Privacy-aware Quantitative Measurement of Psychological State in Meetings based on Non-verbal Cues," in 2024 IEEE International Conference on Pervasive Computing and Communications Workshops and other Affiliated Events (PerCom Workshops), Biarritz, France, Mar. 2024, to be published.

14. N. Eguchi, H. Choi, Y. Nakamura, S. Fukushima, Y. Arakawa, "Design and Implementation of Persuasive Public Wi-Fi to Derive Prosocial Network Usage," in The 38th International Conference on Information Networking (ICOIN 2024), Ho Chi Minh City, Vietnam, Jan. 2024, to be published.

13. G. Li, Y. Arakawa, Y. Nakamura, H. Choi, S. Fukushima, W. Wang "WatchLogger: Keyboard Typing Words Recognition Based on Smartwatch," in The 14th International Conference on Mobile Computing and Ubiquitous Networking (ICMU 2023), Kyoto, Japan, Nov. 2023, pp. 1-6.

12. M. Bastwesy, H. Choi, Y. Arakawa "Tracking On-Desk Gestures Based on WiFi CSI on Low-Cost Microcontroller," in The 14th International Conference on Mobile Computing and Ubiquitous Networking (ICMU 2023), Kyoto, Japan, Nov. 2023, pp. 1-6.

11. K. Kai, Y. Arakawa, H. Choi, "Investigation on Deployment Pattern of Wi-Fi Transceivers for CSI-Based Indoor Localization and Activity Recognition," in The 14th International Conference on Mobile Computing and Ubiquitous Networking (ICMU 2023), Kyoto, Japan, Nov. 2023, pp. 1-4.

10. T. Hayashida, Y. Nakamura, H. Choi, Y. Arakawa, "Design and Implementation of Nodding Recognition System Based on Chair Sway," in The 14th International Conference on Mobile Computing and Ubiquitous Networking (ICMU 2023), Kyoto, Japan, Nov. 2023, pp. 1-4.

9. T. Hayashida, Y. Nakamura, H. Choi, Y. Arakawa, "Counting Nods from Chair Rocking," in The 13th International Conference on the Internet of Things (IoT 2023), Nagoya, Japan, Nov. 2023, pp. 208-210. (Demo) [Best Demonstration Runner-up Award]

8. M. Bastwesy, K. Kai, H. Choi, S. Ishida, and Y. Arakawa, "Wi-Nod: Head Nodding Recognition by Wi-Fi CSI Toward Communicative Support for Quadriplegics," in IEEE Wireless Communications and Networking Conference (WCNC 2023), Glasgow, UK, Mar. 2023, pp. 1-6.

7. H. Choi, T. Matsui, S. Misaki, A. Miyaji, M. Fujimoto, and K. Yasumoto, "Simultaneous Crowd Estimation in Counting and Localization using WiFi CSI," in 2021 International Conference on Indoor Positioning and Indoor Navigation (IPIN 2021), Lloret de Mar, Spain, Nov. 2021, pp. 1-8.

6. A. Miyaji, T. Matsui, Z. Zhang, H. Choi, M. Fujimoto, and K. Yasumoto, "Analysis on Nursing Care Activity Related Stress Level for Reduction of Caregiving Workload," in 50th International Conference on Parallel Processing Workshop (ICPP Workshops 2021), Lemont, IL, USA, Aug. 2021, pp. 1-8.

5. K. Umakoshi, T. Matsui, M. Yoshida, H. Choi, M. Fujimoto, H. Suwa, and K. Yasumoto, "Non-contact Person Identification by Piezoelectric-Based Gait Vibration Sensing," in Proceedings of the 35th International Conference on Advanced Information Networking and Applications (AINA 2021), Toronto, Canada, May. 2021, pp. 745-757.

4. S. Misaki, K. Umakoshi, T. Matsui, H. Choi, M. Fujimoto, and K. Yasumoto, "Non-Contact In-Home Activity Recognition System Utilizing Doppler Sensors," in Adjunct Proceedings of the 2021 International Conference on Distributed Computing and Networking (ICDCN 2021), Nara, Japan, Jan. 2021, pp. 169-174.

3. H. Choi, T. Matsui, M. Fujimoto, and K. Yasumoto, "Simultaneous Crowd Counting and Localization by WiFi CSI," in Adjunct Proceedings of the 2021 International Conference on Distributed Computing and Networking (ICDCN 2021), Nara, Japan, Jan. 2021, pp. 239-240.

2. S. Fukuda, H. Choi, Y. Matsuda, and K. Yasumoto, "Fishing Activity Sensing and Visualization System using Sensor-equipped Fishing Rod: Demo Abstract," in Proceedings of the 18th Conference on Embedded Networked Sensor Systems (SenSys 2020), Japan (virtual), Nov. 2020, pp. 615-616.

1. H. Choi, H. Jin, and S. Kim, "RSS Bias Compensation in BLE Beacon Based Positioning System," in 2017 Ninth International Conference on Ubiquitous and Future Networks (ICUFN 2017), Milan, Italy, Jul. 2017, pp. 494-497.

Domestic Conference ・ Workshops

13. 崔赫秦, 中村優吾, 福嶋政期, 荒川豊, "軽量Wi-Fiセンシングによるデスクワーク行動認識システムの検討", 第111回モバイルコンピューティングと新社会システム研究発表会 (MBL研究会), 沖縄, 2024年5月.

12. 楊子毅, 崔赫秦, 中村優吾, 荒川豊, "ChatGPT-based Application of Text Message Integration and Prioritization for Smartphone Push Notifications", 情報処理学会第86回全国大会, 横浜, 2024年3月.

11. 酒井鴻, 正井克俊, 崔赫秦, 中村優吾, 峯恒憲, 荒川豊, 福嶋政期, "単語記憶力向上のための適応的瞳孔径操作の基礎検討", INTERACTION 2024, 東京, 2024年3月.

10. 島﨑大翠, 正井克俊, 崔赫秦, 中村優吾, 峯恒憲, 福嶋政期, 荒川豊, "ウェアラブル微表情検出のための筋電図分析の基礎検討", INTERACTION 2024, 東京, 2024年3月.

9. 森登志樹, 正井克俊, 崔赫秦, 中村優吾, 峯恒憲, 福嶋政期, 荒川豊, "瞬目誘発のための眼の乾燥を考慮した空気圧式眼鏡型デバイスの基礎検討", INTERACTION 2024, 東京, 2024年3月.

8. 田中宏昌, 正井克俊, 崔赫秦, 中村優吾, 峯恒憲, 福嶋政期, 荒川豊, "呼吸状態の誘導が認知的な笑いに与える影響の調査", INTERACTION 2024, 東京, 2024年3月.

7. 江口直輝, 崔赫秦, 中村優吾, 福嶋政期, 荒川豊, "向社会的なネットワーク利用を説得的に促す公衆Wi-Fiの設計と実装", 情報処理学会IoT行動変容学研究グループ第6回研究会 (BTI6), 東京, 2023年12月.

6. 林田宗樹, 中村優吾, 崔赫秦, 荒川豊, "椅子の揺れに基づく頷き認識システムの設計と構築", 第31回マルチメディア通信と分散処理ワークショップ (DPSWS2023), 富山, 2023年10月. [Encouragement Paper Award]

5. M. Bastwesy, 甲斐貴一朗, 崔赫秦, 荒川豊, "四肢麻痺患者の意思疎通サポートに向けた無線センシングによる頭部モーション推定", マルチメディア、分散、協調とモバイル (DICOMO 2023) シンポジウム, 富山, 2023年7月.

4. 江口直輝, 崔赫秦, 中村優吾, 福嶋政期, 荒川豊, "DNSクエリログを活用した国籍判定手法による多言語デジタルサイネージシステムの提案", マルチメディア、分散、協調とモバイル (DICOMO 2023) シンポジウム, 富山, 2023年7月.

3. 甲斐貴一朗, 崔赫秦, 荒川豊, "Wi-Fi CSI を用いた住居全体の位置・活動推定に適した送受信機設置パターンの調査", 第107回モバイルコンピューティングと新社会システム研究会 (MBL), 沖縄, 2023年5月.

2. S. Fukuda, S. Hong, H. Oh, H. Choi, Y. Matsuda, and K. Yasumoto, "A proposal for a new method of fish species and size prediction by recognizing fishing vibration pattern using machine learning," in 情報処理学会関西支部大会講演論文集. 2019, p. 6p.

1. 최혁진, 펑윤판, 김석찬, "메디안 필터를 적용한 블루투스 비콘 기반 셀-ID 측위 기법", 한국통신학회 2017년도 동계종합학술발표회, 2017년 1월. [Best Paper Award]