Please visit our research group's website [Embedded Intelligent Systems Lab] for up-to-date information on me and my group's research.
I am searching for talented and enthusiastic students to work with! Feel free to contact me if you are interested in embedded and intelligent computing systems research. Before you do so, please take a look at my specific research areas and publications. Preference will be given to students with strong programming skills and some level of knowledge in embedded systems and/or machine learning. I currently have open positions for Postdocs, Ph.D., masters degree students and undergraduate research students. Note: If you are wishing to pursue a graduate degree, contacting me will not assure you admission to the Yonsei University graduate program.
JeongGil Ko is an assistant professor in the School of Integrated Technology, College of Engineering at Yonsei University. He received his Bachelors in Engineering (B.Eng.) degree in computer science and engineering from Korea University in 2007 and received his Doctor of Philosophy (Ph.D.) degree in Computer Science from the Johns Hopkins University in 2012. At Johns Hopkins, JeongGil Ko was a member of the Hopkins interNetworking Research Group (HiNRG) led by Dr. Andreas Terzis. In 2010, he was at the Stanford Information Networking Group (SING) with Dr. Philip Levis at Stanford University as a visiting researcher. From June 2012 to August 2015, JeongGil Ko was a senior researcher at the Electronics and Telecommunications Research Institute (ETRI) and he was an assistant professor at the Department of Software and Computer Engineering at Ajou University from September 2015 to August 2019. He is a recipient of the Abel Wolman Fellowship awarded by the Whiting School of Engineering at the Johns Hopkins University in 2007 and a senior member of the IEEE since 2017. His research interests are in the general area of developing embedded and mobile computing systems with ambient intelligence.
Mobile and ubiquitous computing systems
Mobile and embedded sensor data-based machine learning system design
Deep learning model compression and optimization for mobile and embedded platforms
Healthcare applications using mobile and embedded computing systems
Human interfacing with mobile sensing systems
Dissertation: Designing a Low-power Mobile Sensing System for Wireless Healthcare Applications
Advisor: Dr. Andreas Terzis
Research Experience / Employment History:
Assistant Professor (Sep 2019 - ), School of Integrated Technology, College of Engineering, Yonsei University
Adjunct Professor (Apr 2016 - Aug 2019), Department of Biomedical Informatics, School of Medicine, Ajou University
Senior Researcher (Jun 2012 - Aug 2015), Electronics and Telecommunications Research Institute (ETRI)
Research Community Services:
Technical Program Committee (TPC):
2022: IEEE WCNC
2021: ACM SenSys, ACM/IEEE IPSN, ACM CSCW (Associate Chair), IEEE SECON, IEEE MASS, EWSN, ICOIN, IEEE PerHealth, WellComp (Co-Chair)
2020: IEEE COMSNETS (PC Co-chair), ACM SenSys, IEEE SECON, IEEE ICDCS, 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
Associate Editor, Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT): 2018-Current
Editor and Area-Editor, KSII Transactions on Internet and Information Systems: 2020-Current
Associate Editor, Frontiers in Communications and Networks: 2020-Current
Editorial Board (IoT), Sensors Journal: 2018-Current
Publication Editorial Board, ICT Express: 2018-Current
ACM ASSET 2016/2018, WellComp 2018/2019/2020
Local Arrangements Chair:
ACM SenSys 2015, ACM BuildSys 2015, ACM MobiSys 2019
ACM/IEEE IPSN 2020, IEEE SECON 2020
HotSmartCity 2013, ACM MobileHealth 2015, ACM MobiSys 2017, ACM HotMobile 2018, ACM MobiCom 2017/2021, EWSN 2019/2021
IEEE SECON 2013
Work in Progress Chair
IEEE RTCSA 2016
IEEE MDM 2017, ACM Ubicomp 2018, ACM ISWC 2018
Special Event Chair
ACM SenSys 2020
Board of Directors
Korean Institute of Communication and Information Sciences (KICS; 한국통신학회 이사): 2017- Current
Korean Institute of Medical Informatics (대한의료정보학회 이사): 2017-2018
Board of Executive Directors
Institute of Embedded Engineering of Korea (IEMEK; 대한임베디드공학회 상임이사): 2016-Current
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.
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.
Jungmo Ahn, Huynh Nguyen Loc, Rajesh K. Balan, Youngki Lee, JeongGil Ko. "Finding Small Bowel Lesions: Challenges in Endoscopy Image-based Learning Systems", IEEE Computer, 2018.
Huynh Nguyen Phan Sinh, Seungmin Kim, JeongGil Ko, Rajesh K. Balan, Youngki Lee. "EngageMon: Multi-Modal Engagement Sensing for Mobile Games", ACM UbiComp 2018.
Hyung-sin Kim, David Culler, JeongGil Ko, Jeongyeup Paek. "Challenging the IPv6 Routing Protocol for Low-Power and Lossy Networks (RPL): A Survey", IEEE Communications Surveys & Tutorials, 2017.
Jaeyeon Park, Woojin Nam, Tae Young Kim, Jaewon Choi, Sukhoon Lee, Dukyong Yoon, Jeongyeop Paek, JeongGil Ko. "Glasses For the Third Eye: Improving the Quality of Clinical Data Analysis with Motion Sensor-based Filtering", ACM SenSys 2017.
Hee Jung Yoon, Ho-Kyeong Ra, Can Basaran, Sang Hyuk Son, Taejoon Park, JeongGil Ko. "Fuzzy Bin-based Classification for Detecting Children's Presence with 3D Depth Cameras", ACM Transactions on Sensor Networks, 2017.
Ho-Kyeong Ra, Jungmo Ahn, Hee Jung Yoon, Dukyong Yoon, Sang Hyuk Son, JeongGil Ko. "I am a Smartwatch, Smart Enough to Know the Accuracy of My Own Heart Rate Sensor", ACM HotMobile 2017.
Hyung-sin Kim, JeongGil Ko, Saewoong Bahk. "Smarter Markets for Smarter Life: Applications, Challenges and Deployment Experiences", IEEE Communications Magazine, 2017.
Major Research Projects (Project Details):
Intelligent Sensing Systems
HeartQuake: Contactless ECG sensing using bed-mounted geophones
VOCkit: VOC-recognizing IoT system development
EngageMon: Multi-modal engagement sensing for mobile games
SmartEndo: Real-time data analysis for smart capsule endoscopy
SmartHR: Self-classifying smartwatch hear 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
Mobile Computing and AR/VR Systems
4KODEC: Supporting ultra high-quality interactive video streaming with lower-quality videos
SUGO: Smartphone depth camera-based Korean Sign Language translation
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
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
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
Primarily Advised Students and Researchers
Huynh Nguyen Phan Sinh (Postdoc)
Jaeyeon Park (Ph.D. Student)
Jaewon Choi (Ph.D. Student)
Sungmin Lee (Ph.D. Student)
HyeonJung Park (MS. Student)
Jungmo Ahn (Ph.D. Student @ Ajou University)
Eunseong Boo (MS. Graduated 2020)
Seungmin Kim (MS. Graduated 2020, Initial position: RTst - military service)
Woojin Nam (MS. Graduated 2019, Initial position: KT)
Hyuksang Kwon (MS. Graduated 2018, Current position: Alchera - military service)
Nakhyun Kim (MS. Graduated 2016, Initial position: SK Hynix)
Taehwan Kim (BS Student - Buknell University)
Huynh Nguyen Phan Sinh (Ph.D Student - Singapore Management University)
Intern Students at ETRI or Collaborating Students
Jisu Ha, Ajou University (MS Thesis Committee)
Yongtae Park, Korea University
Andrew H. Park, Daegu Gyeongbuk Institute of Science and Technology (PhD Thesis Committee, Initial position: National University of Singapore)
Ho Kyeong (HK) Ra, Daegu Gyeongbuk Institute of Science and Technology (PhD Thesis Committee, Initial position: IBM Korea)
Hee Jung (Sion) Yoon, Daegu Gyeongbuk Institute of Science and Technology (PhD Thesis Committee)
Hyung-Sin Kim, Seoul National University
Awards and Honors:
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.
College Scholarship, College of Information and Communications, Korea University, 2005-2006.
Research Community Memberships:
IEEE (Senior Member), IEEE Communications Society
TinyOS Core, net2, 15.4, ZigBee Working Groups
KOCSEAA (Korean Computer Scientists and Engineers Association in America)
KIISE (Korea Institute of Information Scientists and Engineers)
Email: , jeonggil.ko [at] yonsei.ac.kr, jeonggil.ko [at] gmail.com,
jgko [at] cs.jhu.edu, jgko [at] cs.jhu.edu, jgko [at] ajou.ac.kr, jeonggil.ko [at] etri.re.kr, jgko [at] korea.ac.kr
Previous Website: @Johns Hopkins
Rm 306, Vertitas C Hall, Yonsei University, 85 Songdogwahak-Ro, Yeonsu-Gu, Incheon Metropolitan City, South Korea, 21983.
인천광역시 연수구 송도과학로 85 (연세대학교) 진리관C 306호 (우: 21983)
Office Phone: +82-32-749-5813