Yuyang Ji

吉宇阳  ·  CS PhD Student @ Drexel University

I am a first-year CS PhD student at Drexel University, advised by Prof. Feng Liu. Before that, I was a Research Associate at the School of Information Sciences, University of Illinois Urbana-Champaign. I received my M.S. in Computer Engineering from New York University and my B.E. from Southwest Jiaotong University.

My research interest is 3D computer vision.

Photo of Yuyang Ji

News

Jul 2026 One paper has been accepted at SIGGRAPH Asia 2026.
Jun 2026 Serving as a reviewer for NeurIPS 2026.
May 2026 One paper is provisionally accepted at MICCAI 2026 (acceptance rate: 9%).
Mar 2026 One paper is accepted by AIED 2026.
Feb 2026 Two papers are accepted by CVPR 2026.
Jan 2026 Serving as a reviewer for IJCV.
Oct 2025 Serving as a reviewer for CVPR 2026.
Jun 2025 One paper is accepted by ICCV 2025.
Feb 2025 One paper is accepted by CVPR 2025.

Publications

2026

BioGait-VLM: A Tri-Modal Vision-Language-Biomechanics Framework for Interpretable Clinical Gait Assessment
Yuyang Ji*, Erdong Chen*, Jacob K. Greenberg, Benjamin Steel, Faraz Arkam, Abigail Lewis, Pranay Singh, Feng Liu
Provisionally accepted at MICCAI 2026 (Acceptance rate: 9%)
arXiv PDF
From 3D Pose to Prose: Biomechanics-Grounded Vision–Language Coaching
Yuyang Ji, Yixuan Shen, Shengjie Zhu, Yu Kong, Feng Liu
CVPR 2026
PDF
Can Multimodal LLMs See Science Instruction? Benchmarking Pedagogical Reasoning in K-12 Classroom Videos
Yixuan Shen, Peng He, Honglu Liu, Jinxuan Fan, Yuyang Ji, Tingting Li, Tianlong Chen, Kaidi Xu, Feng Liu
AIED 2026
arXiv PDF
Learning to Select Visual Tools from Experience
Zeyi Huang, Yuyang Ji, Anirudh Sundara Rajan, Zefan Cai, Wen Xiao, Haohan Wang, Junjie Hu, Yong Jae Lee
CVPR 2026
PDF
Non-Colliding Biometric Identities for Digital Entities: Geometry, Capacity, and Million-Scale Virtual Identity Provisioning
Yuyang Ji, Yixuan Shen, Anil Jain, Xiaoming Liu, Feng Liu
arXiv preprint
arXiv PDF
IDSelect: A RL-Based Cost-Aware Selection Agent for Video-based Multi-Modal Person Recognition
Yuyang Ji, Yixuan Shen, Kien Nguyen, Lifeng Zhou, Feng Liu
arXiv preprint
arXiv PDF

2025

Customizing Domain Adapters for Domain Generalization
Yuyang Ji*, Zeyi Huang*, Haohan Wang†, Yong Jae Lee†
ICCV 2025
PDF
Building a Mind Palace: Structuring Environment-Grounded Semantic Graphs for Effective Long Video Analysis with LLMs
Zeyi Huang, Yuyang Ji, Xiaofang Wang, Nikhil Mehta, Tong Xiao, Donghyun Lee, Sigmund Vanvalkenburgh, Shengxin Zha, Bolin Lai, Licheng Yu, Ning Zhang, Yong Jae Lee†, Miao Liu†
CVPR 2025
arXiv PDF
VisualToolAgent (VisTA): A Reinforcement Learning Framework for Visual Tool Selection
Zeyi Huang, Yuyang Ji, Anirudh Sundara Rajan, Zefan Cai, Wen Xiao, Haohan Wang, Junjie Hu, Yong Jae Lee
arXiv preprint
arXiv PDF
Socratic Chart: Cooperating Multiple Agents for Robust SVG Chart Understanding
Yuyang Ji, Haohan Wang
arXiv preprint
arXiv PDF
IMPROVE: Iterative Model Pipeline Refinement and Optimization Leveraging LLM Experts
Eric Xue, Ke Chen, Zeyi Huang, Yuyang Ji, Haohan Wang
arXiv preprint
arXiv PDF
Do Vision Models Develop Human-Like Progressive Difficulty Understanding?
Zeyi Huang, Utkarsh Ojha, Yuyang Ji, Donghyun Lee, Yong Jae Lee
arXiv preprint
arXiv PDF

2024

LDNET: Semantic Segmentation of High-Resolution Images via Learnable Patch Proposal and Dynamic Refinement
Yuyang Ji, Lianlei Shan
ICME 2024
PDF
* equal contribution    † equal advising

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