Yongjin Choi, Ph.D.

About Me

I received my Ph.D. in civil engineering at the University of Texas at Austin with the thesis titled "Forward and Inverse Modeling of Granular Flows Using Differentiable Graph Neural Network Simulator". Currently, I am working as a postdoctoral fellow in the geosystems engineering group at Georgia Institute of Technology.  

My Research

My research focuses on AI-enhanced simulation, modeling, and automation for natural hazards, leveraging scientific machine learning (SciML), numerical simulation, computer vision, and high-performance computing. Specifically, I am actively using graph neural networks (GNNs) to learn to simulate complex soil interactions and fluid flows in an accurate, fast, and generalizable way, for solving forward and inverse problems, and for material property extraction. In addition, I explore AI-driven automation techniques for infrastructure health monitoring.

More details about my current and past research can be found here.