Education:

• Ph.D., 2012, Department of Computer Science, Johns Hopkins University, Baltimore, Maryland. 

  • Dissertation: Designing a Low-power Mobile Sensing System for Wireless Healthcare Applications

  • Advisor: Dr. Andreas Terzis

• B.Eng., 2007, Department of Computer Science and Engineering, Korea University, Seoul, Korea.

Research Experience / Employment History:

• Associate Professor (Sep 2021 - Current), School of Integrated Technology, College of Computing, Yonsei University, Seoul, Korea

• Associate Professor (Adjunct) (Mar 2022 - Current), Department of Biomedical Systems and Informatics, College of Medicine, Yonsei University, Seoul, Korea

• Associate Professor (Adjunct) (Sep 2023 - Current), Major in Intelligent Semiconductor Technology (BK21), College of Computing, Yonsei University, Seoul, Korea

• Sustainable Development Fellow Professor (Jul 2022 - Current), Institute for Global Engagement and Empowerment, Yonsei University, Seoul, Korea

• Affiliate Faculty (Sep 2023 - Current), Graduate School of Artificial Intelligence, Pohang University of Science and Technology (POSTECH), Pohang, Korea

• Guest Professor (Oct 2023 - Current), Graduate School of Media and Governance, Keio University, Fujisawa/Tokyo, Japan 

• Associate Vice President for Information and Communications (Mar 2022 - Feb 2024), Yonsei University, Seoul, Korea

• Visiting Faculty (Jan 2023), School of Computing and Information Systems, Singapore Management University, Singapore

• Assistant Professor (Sep 2019 - Aug 2021), School of Integrated Technology, College of Engineering, Yonsei University, Seoul, Korea

• Assistant Professor (Sep 2015 - Aug 2019), Department of Software and Computer Engineering, College of Information Technology, Ajou University, Suwon, Korea

• Adjunct Professor (Apr 2016 - Aug 2019), Department of Biomedical Informatics, School of Medicine, Ajou University, Suwon, Korea

• Senior Researcher (Jun 2012 - Aug 2015), Electronics and Telecommunications Research Institute (ETRI), Daejeon, Korea

• Visiting Researcher (Jan 2010 - Apr 2010), Stanford Information Networks Group, Department of Computer Science, Stanford University, Stanford, CA

• Graduate Research Assistant (Sep 2007 - Apr 2012), Hopkins interNetworking Research Group, Department of Computer Science, Johns Hopkins University, Baltimore, MD

• Undergraduate Research Intern (Dec 2005 - Feb 2007), Wireless Data Communications Lab, Department of Computer Science and Engineering, Korea University, Seoul, Korea

Research Community Services:

• Technical Program Committee (TPC): 

  • 2025: AAAI, ACM CHI (Associate Chair), ACM SenSys, IEEE PerCom, IEEE ICDCS, IEEE SECON, ACM CHASE, EWSN

  • 2024: AAAI, ACM SenSys, IEEE PerCom, ACM CSCW (Associate Chair), IEEE ICDCS, IEEE DCOSS-IoT, ACM/IEEE IoTDI, ACM FMSys

  • 2023: AAAI, ACM SenSys, IEEE PerCom, ACM CSCW (Associate Chair), WWW, IEEE SECON, IEEE DCOSS-IoT, EWSN, SmartComp

  • 2022: ACM MobiCom, ACM SenSys, IEEE PerCom,  ACM UbiComp (Technical Program Chair), IEEE MASS (Systems and Applications Track Chair), IEEE SECON, EWSN,  IEEE/ACM CHASE, SmartComp

  • 2021: ACM SenSys, ACM/IEEE IPSN, ACM CSCW (Associate Chair), IEEE SECON, IEEE MASS, EWSN, ICOIN, IEEE PerHealth, WellComp (Co-Chair)

  • 2020: ACM SenSys, IEEE SECON, IEEE ICDCS, IEEE/ACM COMSNETS (PC Co-chair), IEEE WCNC, ICOIN, ICTC, WellComp (Co-Chair)

  • 2019: ACM MobiSys, ACM Digital Public Health, IEEE BSN, WellComp (Co-Chair), EarComp, ICTC

  • 2018: ACM MobiSys (ERC), EWSN, IEEE ICDCS, IEEE ICII, IEEE DCOSS, IEEE ICCCN, ACM Digital Health, IEEE MiSeNet, CitiFog, WellComp (Co-Chair)

  • 2017: ACM MobiSys (ERC), ACM SenSys (EPC), ACM HotMobile , IEEE INFOCOM, EWSN, ICCCN, IEEE ICDCS, ACM Digital Health 

  • 2016: IEEE INFOCOM, IEEE SECON, EWSN, ACM Digital Health 

  • 2015: IEEE SECON, IEEE ICDCS , BodyNets , ACM Digital Health, ACM MCSS , IoT-App 

  • 2014: IEEE SECON, BodyNets, ACM SmartHealthSys, IEEE MASS, IEEE VTC 

  • 2013: IEEE SECON, BodyNets 

  • 2012: IEEE IoTech 

• Journal Editorial Board

  • Editor, IEEE Transactions on Quantum Engineering (TQE): 2024-Current

  • Associate Editor, IEEE Transactions on Mobile Computing (TMC): 2022-Current

  • Associate Editor, Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT): 2018-Current

  • Editor, ICT Express: 2021-Current

  • Publication Editorial Board, ICT Express: 2018-Current

  • Vice Executive Director, ICT Express: 2023-Current

  • Editor and Area-Editor, KSII Transactions on Internet and Information Systems: 2020-2022

• General Chair / Organizer:

  • ACM ASSET 2016/2018, WellComp 2018/2019/2020/2021, ACM MobiSys 2024 

• Steering Committee:

  • WellComp 2022/2023

• Local Arrangements Chair: 

  • ACM SenSys 2015, ACM BuildSys 2015, ACM MobiSys 2019

• Poster/Demo Chair:

  • IEEE SECON 2020, ACM/IEEE IPSN 2020/2022, IEEE WoWMoM 2024

• Publicity Chair: 

  • HotSmartCity 2013, ACM MobileHealth 2015, ACM MobiSys 2017, ACM HotMobile 2018, ACM MobiCom 2017/2021, EWSN 2019/2021/2022, ACM SenSys 2022

• Publications Chair: 

  • IEEE SECON 2013

• Web Chair: 

  • S-Cube 2011

• Work in Progress Chair

  • IEEE RTCSA 2016

• Workshop Chair

  • IEEE MDM 2017, ACM Ubicomp 2018, ACM ISWC 2018

• Special Event Chair

  • ACM SenSys 2020

• Student Travel Grants Chair

  • ACM MobiSys 2022

• Board of Directors 

  • Korean Institute of Communication and Information Sciences (한국통신학회 이사/집행이사/상임이사): 2017- Current

  • Korean Society for Digital Therapy (대한디지털치료학회 이사): 2022-Current

  • Institute of Embedded Engineering of Korea (대한임베디드공학회 상임이사): 2016-2021

  • Korean Institute of Medical Informatics (대한의료정보학회 이사): 2017-2018

Selected Recent (5-year window) Publications (Full List and Articles) (Google Scholar):

• Yujin Shin, Kichang Lee, Sungmin Lee, Yu Rim Choi, Hyung-sin Kim, JeongGil Ko. "Effective Heterogeneous Federated Learning via Efficient Hypernetwork-based Weight Generation", ACM SenSys 2024.

• Shuai Zhu, Thiemo Voigt, Fatemeh Rahimian, JeongGil Ko. "On-device Training: A First Overview on Existing Systems", ACM Transactions on Sensor Networks, 2024.

• Jonghyuk Yun, Kyoosik Lee, Kichang Lee, Bangjie Sun, Jaeho Jeon, JeongGil Ko, Inseok Hwang, Jun Han. "PowDew: Detecting Counterfeit Powdered Food Products using a Commodity Smartphone", ACM MobiSys 2024 (Best Paper Award).

• JaeYeon Park, Kichang Lee, Sungmin Lee, Mi Zhang, JeongGil Ko. "AttFL: A Personalized Federated Learning Framework for Time-series Mobile and Embedded Sensor Data Processing", ACM UbiComp 2023.

• JaeYeon Park, Kichang Lee, Noseong Park, Seng Chan You, JeongGil Ko. "Self-Attention LSTM-FCN Model for Arrhythmia Classification and Uncertainty Assessment", Artificial Intelligence in Medicine, 2023. 

• Jaewon Choi, Seungchan Jeong, JeongGil Ko. "Emulating Your eXtended World: An Emulation Environment for XR App Development", IEEE MASS 2022 (Invited Paper).

• In Gim, JeongGil Ko. "Memory-efficient DNN Training on Mobile Devices", ACM MobiSys 2022.

• Hyunjun Kim, JeongGil Ko. "Fast Monte-Carlo Approximation of the Attention Mechanism", AAAI 2022.

• Sinh Huynh, Rajesh Krishna Balan, JeongGil Ko. "iMon: Appearance-based Gaze Tracking System on Mobile Devices", ACM UbiComp 2022.

• HyeonJung Park, Youngki Lee, JeongGil Ko. "Enabling Real-time Sign Language Translation on Mobile Platforms with On-board Depth Cameras", ACM UbiComp 2021.

• Jaewon Choi, JeongGil Ko. "Low Quality for High Quality: Exploiting 2K Frames for Supporting Efficient 4K-Quality Pervasive Video Streaming Applications", IEEE Pervasive Computing, Special Issue on Pervasive Video and Audio, 2021.

• Eunseong Boo, Joongheon Kim, JeongGil Ko. "LiteZKP: Lightening Zero-Knowledge Proof-based Blockchains for IoT and Edge Platforms", IEEE Systems Journal, 2021.

• Taewook Heo, Woojin Nam, Jeongyeup Paek, JeongGil Ko. "Autonomous Reckless Driving Detection Using Deep Learning on Embedded GPUs", IEEE MASS 2020.

• Jaeyeon Park, Hyeon Cho, Rajesh Krishna Balan, JeongGil Ko. "HeartQuake: Accurate Low-Cost Non-Invasive ECG Monitoring Using Bed-Mounted Geophones", ACM UbiComp 2020 (PACM IMWUT Distinguished Paper Award).

• Joongyum Kim, Taesik Gong, Kyungsik Han, Juho Kim, JeongGil Ko, Sung-Ju Lee. "Messaging Beyond Texts with Real-time Image Suggestions'', ACM MobileHCI 2020.

• Joon-Gyum Kim, Taesik Gong, Bogoan Kim, JaeYeon Park, Woojeong Kim, Evey Huang, Kyungsik Han, Juho Kim, JeongGil Ko, Sung-Ju Lee. "No More One Liners: Bringing Context into Emoji Recommendations", ACM Transactions on Social Computing, 2020.

• Huynh Nguyen Phan Sinh, Rajesh Balan, JeongGil Ko, Youngki Lee. "VitaMon: Measuring Heart Rate Variability Using the Smartphone Front Camera'', ACM SenSys 2019. 

• Eunseong Boo, Shahid Raza, Joel Höglund, JeongGil Ko. "FDTLS: Supporting DTLS-based Combined Storage and Communication Security for IoT Devices", IEEE MASS 2019.

• Jaewon Choi, HyeonJung Park, Jeongyeup Paek, Rajesh Balan, JeongGil Ko. "LpGL: Low-power Graphics Library for Mobile AR Headsets", ACM MobiSys 2019.

• Jungmo Ahn, Hyungi Kim, Eunha Kim, JeongGil Ko. "Designing a Low-Cost IoT Sensing Platform for VOC Material Classification", IEEE DCOSS 2019.

Awards and Honors:

• Best Poster Award, Korean Society of Medical Informatics Spring Conference, 2024

• Best Paper Award, ACM MobiSys 2024

• Best Poster Runner-up Award, ACM MobiSys 2024

• Outstanding Teaching Award, Yonsei University (연세대학교 우수강의교수상), 2023.

• Best Guest Editor Award, ICT Express, 2022.

• Outstanding Teaching Award, Yonsei University (연세대학교 우수강의교수상), 2022.

• Distinguished Paper Award, PACM IMWUT (ACM UbiComp), 2021 (Awarded to top papers published in 2020).

• Best Poster Award, Korean Otological Society Conference 2021.

• Best Reviewer Award, ICT Express, 2020.

• Best Poster Runner Up Award, COMSNETS 2020.

• Best Reviewer Award, ICT Express, 2019.

• Ajou Publication Award, Ajou University, 2019.

• Best Demo Award, ACM HotMobile 2019.

• Ajou Publication Award (Bronze),  Ajou University, 2018.

• Best Paper Award, KICS Winter Conference 2018.

• Best Demo Award, ACM SenSys, 2015.

• Best Poster Award, IEEE SECON 2012.

• Student Travel Grant, IEEE SECON 2010.

• Abel Wolman Fellowship, Whiting School of Engineering, Johns Hopkins University, 2007-2008 (Awarded to most promising incoming graduate students in engineering).

• College Scholarship, College of Information and Communications, Korea University, 2005-2006.

Major Research Projects (Project Details):

1. Intelligent Sensing Systems 

   • HeartQuake: Contactless ECG sensing using bed-mounted geophones

   • VItaMon: Ambient heart rate variability detection using smartphone front cameras

   • VOCkit: VOC-recognizing IoT system development

   • SUGO: Smartphone depth camera-based Korean Sign Language translation

   • EngageMon: Multi-modal engagement sensing for mobile games

   • SmartEndo: Real-time data analysis for smart capsule endoscopy

   • SmartHR: Self-classifying smartwatch heart rate sensor accuracy

   • MediSense: Improving clinical data quality using on-bed motion sensors

   • MarketNet: Enabling electronic price tagging in indoors marketplaces

   • ReLiSCE: Resource limited sensor-based context extraction

   • ChildSafe: Detecting children's' presence using 3D depth cameras

   • MEDiSN: A multi-tiered wireless sensing system for real-time physiological signal data collection

2.  Intelligent Mobile/Ubiquitous Computing and AR/VR Systems

   • FedHM: Federated learning framework for mobile/IoT platforms with heterogeneous models

   • AttFL: Federated learning framework for analyzing time-series sensor data

   • Sage: On-device deep neural network training framework

   • 4KODEC: Supporting ultra high-quality interactive video streaming with lower-quality videos

   • LpGL: Energy-efficient graphics support for mobile AR/VR headsets

   • XREmul: Providing an effective input emulation environment for AR/VR application development 

   • Vision Assistance Glass: Designing a wearable headset for vision therapy assistance

   • VoCell: Smartphone application development framework for vehicular networking applications 

   • Energy-aware Miracast: Improving mobile video codecs for energy efficient operations

3.  Embedded Networked Systems and Software Design

   • LiteZKP: Designing a lightweight Zero Proof Knowledge protocol for use in IoT/Edge computing platforms

   • FDTLS: Supporting DTLS-based storage and network security for IoT systems

   • SecureIoT: Certificate-based Security for Resource-constrained Internet of Things

   • iSDR: Supporting software radios on smartphones with efficient processing and energy consumption

   • PEASST: Point-to-point Packet Exchange with Asynchronous Sleep and Synchronous Transmissions

   • Egs Platform: A high-end mote platform design based on a ARM Cortex-M3 32-bit microcontoller

4. IETF Routing Protocol for Low-power and Lossy Networks (RPL) Protocol Design and Enhancements

   • Downwards RPL Enhancements:  Improving the efficiency of RPL's downwards routing capabilities 

   • DualMOP-RPL: Supporting multiple modes of operation for RPL networks

   • MoMoRo: Mobile-to-mobile routing for IPv6-based low-power and lossy wireless networks

   • TinyRPL: TinyOS implementations of the IPv6 RPL routing protocol

Advised Students / Researchers:

Primarily Advised Students and Researchers

• Jaewon Choi (Ph.D. Candidate)  

• Sungmin Lee (Ph.D. Candidate)

• Yujin Shin (Ph.D. Student)

• Kichang Lee (Ph.D. Student)

• Hanju Jang (Ph.D. Student)

• Minju Kang (Ph.D. Student)

• Yongun Choi (M.S. Student)

• Soobin Lee (M.S. Student)

• Heewon Lee (M.S. Student)

• Jaehee Choi (M.S. Student - On leave)

• Dr. Jaeyeon Park (Ph.D. Graduated 2023, Now at: Dankook University - Assistant Professor)  

  • Dissertation title: Intelligent Physiological Sensing Systems for Digital Healthcare

• Dr. Jungmo Ahn (Ph.D. Graduated 2022; Co-advised with Prof. Jeongseob Ahn @ Ajou University, Now at: Hyundai MOBIS)

  • Dissertation title: Towards Efficient Collaborative Deep Learning Inference for Image-based Sensing Systems

• Hyunjun Kim (In Gim) (Affiliated Researcher and Undergraduate Research Student 2020-2022, Now at: Yale University - Ph.D. student)

• HyeonJung Park (MS. Graduated 2022, Now at: Hyundai MOBIS)

• Dr. Sinh Huynh (Visiting Ph.D. Student 2019, Postdoc 2020-2021, Now at: Torus.AI)

• Eunseong Boo (MS. Graduated 2020, Now at: Theori)

• Seungmin Kim (MS. Graduated 2020, Now at: RTst)

• Woojin Nam (MS. Graduated 2019, Now at: KT)

• Hyuksang Kwon (MS. Graduated 2018, Now at: Alchera Inc.)

• Nakhyun Kim (MS. Graduated 2016, Now at: SK Hynix)

Interns and Co-advised Students while at ETRI

• Dr. Yongtae Park, Korea University (Now at: Ettifos Co.)

• Dr. Homin (Andrew) Park, DGIST (PhD Thesis Committee, Now at: Singapore University of Social Science - Assistant Professor)

• Dr. Ho Kyeong (HK) Ra, DGIST (PhD Thesis Committee, Now at: CVS Health)

• Dr. Hee Jung (Sion) Yoon, DGIST (PhD Thesis Committee, Now at: City University of Seattle  - Assistant Professor)

Media Coverage on My Research:

• IEEE Press Release, "Wireless Sensor Networks Get Real with Real-World Applications in the November Issue of the Proceedings of the IEEE". Dec 01 2010 [link]

• Discovery Channel Technology Video, "Emergency Rooms Go Wireless". Apr 10 2010 [link]

Research Community Memberships:

• ACM (Senior Member), IEEE (Senior Member), ACM SIGMOBILE, IEEE Communications Society

• Korean Institute of Communication and Information Sciences (Life Member), Korean Institute of Information Scientists and Engineers (Life Member)

• TinyOS Core, net2, 15.4, ZigBee Working Groups

• KOCSEAA (Korean Computer Scientists and Engineers Association in America)

Contact:

• Email: , jeonggil.ko [at] yonsei.ac.kr (preferred), jeonggil.ko [at] eis-lab.org, jeonggil.ko [at] gmail.com, jeonggil.ko@keio.jp, jko13@alumni.jh.edu

• Previous Emails (no longer functional/used): jeonggil.ko [at] eis.yonsei.ac.kr, jgko [at] cs.jhu.edu, jgko [at]jhu.edu, jgko [at] ajou.ac.kr, jeonggil.ko [at] etri.re.kr, jgko [at] korea.ac.kr

• Office Address: 

  • 306 Vertitas C Hall, Yonsei University, 85 Songdogwahak-Ro, Yeonsu-Gu, Incheon, South Korea, 21983

  • 인천광역시 연수구 송도과학로 85 연세대학교 진리관C 306호 (우: 21983)

  • Office Phone: +82-32-749-5813