Portrait
Hahyeon Choi
Integrated M.S./Ph.D. student
Seoul National University
About Me

Hi! šŸ‘‹ I’m Hahyeon Choi, a graduate student at Seoul National University, advised by Prof. Nojun Kwak at the Machine Intelligence and Pattern Analysis Lab (MIPAL). Prior to my graduate studies, I earned my Bachelor's degree in Electrical and Computer Engineering at Seoul National University.

I’m broadly interested in multimodal representation learning and video understanding, with a focus on how machines can learn to perceive and reason about the world through diverse modalities such as vision, audio, and language.

News
2026
šŸŽ‰ Our S3 paper was accepted to ICML 2026! See you in Seoul! šŸ‡°šŸ‡·
Apr 30
2025
šŸ™Œ Our AVATAR benchmark was publicly released! Explore it on Hugging Face šŸ¤—
Jul 07
šŸŽ‰ Our AVATAR paper was accepted to ICCV 2025! See you in Hawaii! 🌺
Jun 25
šŸš€ Started research at MIPAL under Prof. Nojun Kwak.
Mar 03
Selected Publications (view all )
Toward Structural Multimodal Representations: Specialization, Selection, and Sparsification via Mixture-of-Experts
Toward Structural Multimodal Representations: Specialization, Selection, and Sparsification via Mixture-of-Experts

Hahyeon Choi, Nojun Kwak

International Conference on Machine Learning (ICML) 2026

Toward Structural Multimodal Representations: Specialization, Selection, and Sparsification via Mixture-of-Experts

Hahyeon Choi, Nojun Kwak

International Conference on Machine Learning (ICML) 2026

What's Making That Sound Right Now? Video-centric Audio-Visual Localization
What's Making That Sound Right Now? Video-centric Audio-Visual Localization

Hahyeon Choi, Junhoo Lee, Nojun Kwak

International Conference on Computer Vision (ICCV) 2025

What's Making That Sound Right Now? Video-centric Audio-Visual Localization

Hahyeon Choi, Junhoo Lee, Nojun Kwak

International Conference on Computer Vision (ICCV) 2025

GrowOVER: How Can LLMs Adapt to Growing Real-World Knowledge?
GrowOVER: How Can LLMs Adapt to Growing Real-World Knowledge?

Dayoon Ko, Jinyoung Kim, Hahyeon Choi, Gunhee Kim

Annual Meeting of the Association for Computational Linguistics (ACL) 2024

GrowOVER: How Can LLMs Adapt to Growing Real-World Knowledge?

Dayoon Ko, Jinyoung Kim, Hahyeon Choi, Gunhee Kim

Annual Meeting of the Association for Computational Linguistics (ACL) 2024

VLAAD: Vision and Language Assistant for Autonomous Driving
VLAAD: Vision and Language Assistant for Autonomous Driving

SungYeon Park, MinJae Lee, JiHyuk Kang, Hahyeon Choi, Yoonah Park, Juhwan Cho, Adam Lee, DongKyu Kim

WACV 2024 Workshops on Large Language and Vision Models for Autonomous Driving (LLVM-AD) 2024

VLAAD: Vision and Language Assistant for Autonomous Driving

SungYeon Park, MinJae Lee, JiHyuk Kang, Hahyeon Choi, Yoonah Park, Juhwan Cho, Adam Lee, DongKyu Kim

WACV 2024 Workshops on Large Language and Vision Models for Autonomous Driving (LLVM-AD) 2024

All publications