Hi, I am Chunjong “CJ” Park. I am a software enginner at Google DeepMind, working at the intersection of multimodal LLMs and health.

Prior to Google, I received PhD in Computer Science and Engineering at the University of Washington, where I worked with Shwetak Patel in the Ubiquitous Computing Lab. I recieved BS and MS in Computer Science at KAIST, where I worked with Sung-Ju Lee, Juho Kim, Junehwa Song, and Sue Moon.

Publications

Capabilities of Gemini Models in Medicine
Khaled Saab, Tao Tu, Wei-Hung Weng, Ryutaro Tanno, David Stutz, Ellery Wulczyn, Fan Zhang, Tim Strother, Chunjong Park, Elahe Vedadi, Juanma Zambrano Chaves, Szu-Yeu Hu, Mike Schaekermann, Aishwarya Kamath, Yong Cheng, David G.T. Barrett, Cathy Cheung, Basil Mustafa, Anil Palepu, Daniel McDuff, Le Hou, Tomer Golany, Luyang Liu, Jean-baptiste Alayrac, Neil Houlsby, Nenad Tomasev, Jan Freyberg, Charles Lau, Jonas Kemp, Jeremy Lai, Shekoofeh Azizi, Kimberly Kanada, SiWai Man, Kavita Kulkarni, Ruoxi Sun, Siamak Shakeri, Luheng He, Ben Caine, Albert Webson, Natasha Latysheva, Melvin Johnson, Philip Mansfield, Jian Lu, Ehud Rivlin, Jesper Anderson, Bradley Green, Renee Wong, Jonathan Krause, Jonathon Shlens, Ewa Dominowska, S. M. Ali Eslami, Katherine Chou, Claire Cui, Oriol Vinyals, Koray Kavukcuoglu, James Manyika, Jeff Dean, Demis Hassabis, Yossi Matias, Dale Webster, Joelle Barral, Greg Corrado, Christopher Semturs, S. Sara Mahdavi, Juraj Gottweis, Alan Karthikesalingam, Vivek Natarajan
arxiv, April, 2024 [pdf]

A Bag of Tricks for Few-Shot Class-Incremental Learning
Shuvendu Roy, Chunjong Park, Aldi Fahrezi, Ali Etemad
arxiv, March, 2024 [pdf]

CAPAPP: Smartphone-Based Capillary Refill Index Assessment in Healthy Children
Jonathan Strutt, Girish Narayanswamy, Chunjong Park, Devesh Sarda, Sixuan Wu, Matthew Thompson, Lauren Harvey, Rachel Hedstrom, Amy Kodet, Shwetak Patel, Alex Mariakakis
Frontiers in Biomedical Devices, April, 2023 [pdf]

Reliable and Trustworthy Machine Learning for Health Using Dataset Shift
Chunjong Park, Anas Awadalla, Tadayoshi Kohno, Shwetak Patel
Conference on Neural Information Processing Systems (NeurIPS), December, 2021 [pdf]

Air Constellations: In-Air Device Formations for Cross-Device Interaction via Multiple Spatially-Aware Armatures
Nicolai Marquardt, Nathalie Henry Riche, Christian Holz, Hugo Romat, Michel Pahud, Frederik Brudy, David Ledo, Chunjong Park, Molly Jane Nicholas, Teddy Seyed, Eyal Ofek, Bongshin Lee, William A. S. Buxton, and Ken Hinckley
ACM Symposium on User Interface Software and Technology (UIST), October, 2021 [pdf]

RDTCheck: A Smartphone App for Monitoring Rapid Diagnostic Test Administration
Devesh Sarda, Chunjong Park, Hung Ngo, Alex Mariakakis, Shwetak Patel
ACM Conference on Human Factors in Computing Systems (CHI) Late-Breaking Work, May, 2021 [pdf]

Significant Otter: Understanding the Role of Biosignals in Communication
Fannie Liu, Chunjong Park, Yu Jiang Tham, Tsung-Yu Tsai, Laura Dabbish, Geoff Kaufman, Andrés Monroy-Hernández
ACM Conference on Human Factors in Computing Systems (CHI), May, 2021 [pdf]

Online Mobile App Usage as an Indicator of Sleep Behavior and Job Performance
Chunjong Park*, Morelle Arian*, Xin Liu, Leon Sasson, Jeffrey Kahn, Shwetak Patel, Alex Mariakakis, Tim Althoff
The Web Conference (WWW), April, 2021 [pdf]

The Design and Evaluation of a Mobile System for Rapid Diagnostic Test Interpretation
Chunjong Park, Hung Ngo, Libby Rose Lavitt, Vincent Karuri, Shiven Bhatt, Peter Lubell-Doughtie, Anuraj H. Shankar, Leonard Ndwiga, Victor Osoti, Juliana K. Wambua, Philip Bejon, Lynette Isabella Ochola-Oyier, Monique Chilver, Nigel Stocks, Victoria Lyon, Barry R. Lutz, Matthew Thompson, Alex Mariakakis, Shwetak Patel
Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), March, 2021 [pdf]

Diagnostic accuracy of an app-guided, self-administered test for influenza among individuals presenting to general practice with influenza-like illness: study protocol
Victoria Lyon, Monica Zigman Suchsland, Monique Chilver, Nigel Stocks, Barry Lutz, Philip Su, Shawna Cooper, Chunjong Park, Libby Rose Lavitt, Alex Mariakakis, Shwetak Patel, Chelsey Graham, Mark Rieder, Cynthia LeRouge, Matthew Thompson
BMJ Open, November, 2020 [pdf]

Augmenting Conversational Agents with Ambient Acoustic Contexts
Chunjong Park, Chulhong Min, Sourav Bhattacharya, Fahim Kawsar
ACM International Conference on Human-Computer Interaction with Mobile Devices and Services (MobileHCI), October, 2020 [pdf] [website]

Supporting Samrtphone-Based Image Capture of Rapid Diagnostic Tests in Low-Resource Settings
Chunjong Park, Alex Mariakakis, Jane Yang, Diego Lassala, Yasamba Djiguiba, Youssouf Keita, Hawa Diarra, Beatrice Wasunna, Fatou Fall, Marème Soda Gaye, Bara Ndiaye, Ari Johnson, Isaac Holeman, Shwetak Patel
International Conference on Information and Communication Technologies and Development (ICTD), June, 2020 [pdf]

Fire in Your Hands: Understanding Thermal Behavior of Smartphones
Soowon Kang, Hyeonwoo Choi, Soo Young Park, Chunjong Park, Jemin Lee, Uichin Lee, and Sung-Ju Lee
ACM Conference on Conference on Mobile Computing and Networking (MobiCom), October, 2019 [pdf]

Zaturi: We Put Together the 25th Hour for You. Create a Book for Your Baby
Bumsoo Kang, Chulhong Min, Wonjung Kim, Inseok Hwang, Chunjong Park, Seungchul Lee, Sung-Ju Lee, and Junehwa Song
ACM Conference on Computer-Supported Cooperative Work and Social Computing (CSCW), February, 2017 [pdf]

“Don’t Bother Me. I’m Socializing!”: A Breakpoint-Based Smartphone Notification System
Chunjong Park, Junsung Lim, Juho Kim, Sung-Ju Lee, and Dongman Lee
ACM Conference on Computer-Supported Cooperative Work and Social Computing (CSCW), February, 2017 [pdf]

DX: Accurate Latency-based Congestion Feedback for Datacenters
Changhyun Lee, Chunjong Park, Keon Jang, Sue Moon, and Dongsu Han
IEEE/ACM Transaction on Networking, February, 2017 [pdf]

Accurate Latency-based Congestion Feedback for Datacenters
Changhyun Lee, Chunjong Park, Keon Jang, Sue Moon, and Dongsu Han
USENIX Annual Technical Conference (ATC), July, 2015 [pdf]