Iβm a fourth-year B.S. student at Sungkyunkwan University, advised by Prof. Sungeun Hong in the AI and Media Lab, where I am also enrolled in the B.S.βM.S. integrated program. My research interests lie in Efficient Model Learning, Model Merging, and Multimodal Learning.
Iβm especially excited about building large multimodal models that are efficient to train and adapt, and about understanding how independently trained models can be combined into a single, more capable one. More broadly, my goal is to develop methods that make powerful AI models more practical and accessible under limited compute. Feel free to reach out if youβd like to chat about research or potential collaboration.
π₯ News
- 2026.06 ππ Our poster was accepted to RespMultimodal 2026, a KDD 2026 Workshop.
- 2026.05 ππ Awarded the Sungkyunkwan University Graduate School Scholarship Type 1 β a full-tuition scholarship.
- 2026.02 ππ I was selected to receive the IPIU 2026 Best Poster Presentation Award
π Publications
*Denotes equal contribution
Where to Adapt for MLLM Merging? A Module-Level Analysis
Hyunjae Ra*, Aecheon Jung, Sungeun Hong
KDD Workshop on Responsible Multimodal Foundation Models for Knowledge Discovery (KDDW 2026) (2026. 8)
Analysis of Model Integration Performance according to Training Scope in Multimodal Large Language Models
Hyunjae Ra*, Aecheon Jung, Sungeun Hong
The Korean Institute of Broadcast and Media Engineers(KIBME) Summer Conference (2026. 6)
Clustering-Based Task Vector Quantization for Ultra-Low-Bit Model Merging
Hyunjae Ra*, Aecheon Jung, Seunghwan Lee, Sungeun Hong
Workshop on Image Processing and Image Understanding (IPIU) 2026 (2026. 2)
π₯ Outstanding Poster Presentation Award
Comparison of VGGT and SfM in Generating Initial Points for 3D Gaussian Splatting
Reagan Koo*, Jun-Hyeong Park, Hyunjae Ra, Eun-Seok Ryu
Journal of Broadcasting Engineering (JBE), Letters (2025. 8)
Point Cloud Augmentation via 3D Gaussian Splatting and Mesh Reconstruction using NKSR
Hyunjae Ra*, Jun-Hyeong Park, Minsu Park, Eun-Seok Ryu
The Korean Institute of Broadcast and Media Engineers(KIBME) Summer Conference (2025. 6)
LoD Mesh Generation Based on Object Density Using 3D Gaussian Splatting
Minsu Park*, Jun-Hyeong Park, Hyunjae Ra, Yeong-Gyu Kim, Eun-Seok Ryu
The Korean Institute of Broadcast and Media Engineers(KIBME) Summer Conference (2025. 6)
π‘ Project
Multimodal Framework for Depression Diagnosis
Development and Commercialization of a Multimodal AI Digital Therapeutic for Depression and Anxiety
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Funded by Ministry of Trade, Industry and Energy (MOTIE) / Korea Planning & Evaluation Institute of Industrial Technology (KEIT) (2025.04 ~ 2026.12)
π Honors and Awards
- 2026.06 Graduate School Scholarship Type 1 (Full-tuition Scholarship) - Sungkyunkwan University
- 2026.02 Best Poster Presentation Award - IPIU 2026
- 2026.01 Encouragement Award - Seoul AI Living Lab Project
- 2025.10 Grand Prize (1rd place) - 2025 SKKU AI Hackathon
- 2024.12 Silver Prize (3rd place) - 2024 SKKU Capstone Design Competition & ComEdunion
- 2024.10 Silver Prize (3rd place) - 2024 SKKU AI Hackathon
π Educations
- 2023.03 - present Sungkyunkwan University, B.S. Student, Department of Computer Education
π» Internships
- 2025.09 - present Artificial Intelligence and Media Lab @ Sungkyunkwan Univ
- 2024.07 - 2025.08 Intelligent Multimedia Computing Laboratory (IMCLab) @ Sungkyunkwan Univ
π¨βπ« Teaching Experience
- 2026.05β2026.06 Teaching Practicum Student - Computer Education, Hagye Middle School
