William June Suk Choi
Graduate student at KAIST
KAIST AI
w_choi [AT] kaist.ac.kr / wchoi403 [AT] gmail.com
About
I am a Ph.D. student at KAIST, advised by Kimin Lee and Jinwoo Shin, and a research intern at Adobe Research working with Long Mai. My research focuses on building generative models that capture real-world dynamics, with a focus on learning expressive and efficient representations for video generation.
Publications
[C7] Improving Motion in Image-to-Video Models via Adaptive Low-Pass Guidance
June Suk Choi, Kyungmin Lee, Sihyun Yu, Yisol Choi, Jinwoo Shin, Kimin Lee
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2026
Highlight Presentation
[C6] MobileSafetyBench: Evaluating Safety of Autonomous Agents in Mobile Device Control
Juyong Lee*, Dongyoon Hahm*, June Suk Choi*, W. Bradley Knox, Kimin Lee
AAAI Conference on Artificial Intelligence, Special Track on AI Alignment (AAAI), 2026
[C5] Enhancing LLM Agent Safety via Causal Influence Prompting
Dongyoon Hahm, Woogyeol Jin, June Suk Choi, Sungsoo Ahn, Kimin Lee
Findings of the Association for Computational Linguistics (ACL Findings), 2025
[C4] Silent Branding Attack: Trigger-free Data Poisoning Attack on Text-to-Image Diffusion Models
Sangwon Jang, June Suk Choi, Jaehyeong Jo, Kimin Lee^, Sung Ju Hwang^
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2025
[C3] DiffusionGuard: A Robust Defense Against Malicious Diffusion-based Image Editing
June Suk Choi, Kyungmin Lee, Jongheon Jeong, Saining Xie, Jinwoo Shin, Kimin Lee
International Conference on Learning Representations (ICLR), 2025
[C2] DiffExp: Efficient Exploration in Reward Fine-tuning for Text-to-Image Diffusion Models
Daewon Chae*, June Suk Choi*, Jinkyu Kim^, Kimin Lee^
AAAI Conference on Artificial Intelligence (AAAI), 2025
Oral Presentation (547/12957=4.2%)
[C1] Collaborative Score Distillation for Consistent Visual Editing
Subin Kim*, Kyungmin Lee*, June Suk Choi, Jongheon Jeong, Kihyuk Sohn, Jinwoo Shin
Conference on Neural Information Processing Systems (NeurIPS), 2023
[C7] Improving Motion in Image-to-Video Models via Adaptive Low-Pass Guidance
June Suk Choi, Kyungmin Lee, Sihyun Yu, Yisol Choi, Jinwoo Shin, Kimin Lee
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2026
Highlight Presentation
[C6] MobileSafetyBench: Evaluating Safety of Autonomous Agents in Mobile Device Control
Juyong Lee*, Dongyoon Hahm*, June Suk Choi*, W. Bradley Knox, Kimin Lee
AAAI Conference on Artificial Intelligence, Special Track on AI Alignment (AAAI), 2026
[C5] Enhancing LLM Agent Safety via Causal Influence Prompting
Dongyoon Hahm, Woogyeol Jin, June Suk Choi, Sungsoo Ahn, Kimin Lee
Findings of the Association for Computational Linguistics (ACL Findings), 2025
[C4] Silent Branding Attack: Trigger-free Data Poisoning Attack on Text-to-Image Diffusion Models
Sangwon Jang, June Suk Choi, Jaehyeong Jo, Kimin Lee^, Sung Ju Hwang^
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2025
[C3] DiffusionGuard: A Robust Defense Against Malicious Diffusion-based Image Editing
June Suk Choi, Kyungmin Lee, Jongheon Jeong, Saining Xie, Jinwoo Shin, Kimin Lee
International Conference on Learning Representations (ICLR), 2025
[C2] DiffExp: Efficient Exploration in Reward Fine-tuning for Text-to-Image Diffusion Models
Daewon Chae*, June Suk Choi*, Jinkyu Kim^, Kimin Lee^
AAAI Conference on Artificial Intelligence (AAAI), 2025
Oral Presentation (547/12957=4.2%)
[C1] Collaborative Score Distillation for Consistent Visual Editing
Subin Kim*, Kyungmin Lee*, June Suk Choi, Jongheon Jeong, Kihyuk Sohn, Jinwoo Shin
Conference on Neural Information Processing Systems (NeurIPS), 2023
Education
Korea Advanced Institute of Science and Technology (KAIST)Sep. 2023 - Present
Ph.D. Student in Artificial Intelligence
Korea Advanced Institute of Science and Technology (KAIST)Mar. 2019 - Aug. 2023
B.S. in Computer Science (summa cum laude)
Graduated with Rank 1 out of 75 students in the School of Computing
Experience
Adobe Research - Video AI Lab (San Jose, CA)Apr. 2026 - Jul. 2026
Research Scientist/Engineer Intern Host: Dr. Long Mai
PLUME.D (Seoul, South Korea) Jan. 2022 - Jan. 2023
Chief Technology Officer and Co-founder
- Led the development of AvaKit, the company's core product, securing approx. USD 700K in funding.
- 1st place (of 876 teams), 11th Chung Ju-Young Startup Competition (largest private startup contest in Korea).
- 2nd place (of 5,420 teams), K-Startup Grand Challenge 2022 (largest government startup contest in Korea).
Academic Services
Reviewer, NeurIPS, ICML, CVPR, ECCV, ACL, TMLR
Honors & Awards
Dean's List, KAIST College of Engineering (2020F)Jan. 2021
Recipient, National Science and Engineering Undergraduate ScholarshipMay. 2020