headshot
headshot

Yoonchang Sung

yooncs8 [@] cs.utexas.edu
yooncs8 [@] cs.utexas.edu


I am an incoming Assistant Professor in the College of Computing and Data Science at Nanyang Technological University, Singapore, starting in Summer 2025.

I am recruiting several highly motivated PhD students for Fall 2025 at NTU!

I am a researcher passionate about developing intelligent robots with the ability to plan efficiently, learn from past experiences, and reason about their decisions and interactions with other agents. In particular, I design algorithms for task and motion planning, as well as multi-robot systems, aiming for solutions that are both theoretically sound and practically valuable.

Currently I am a postdoctoral fellow in the Learning Agents Research Group within the Computer Science Department at the University of Texas at Austin, hosted by Prof. Peter Stone. Previously, I was a postdoctoral associate at MIT CSAIL, hosted by Prof. Tomás Lozano-Pérez and Prof. Leslie Pack Kaelbling. I received my Ph.D. degree from Virginia Tech under Prof. Pratap Tokekar in 2019.

My favorite quote from David Blackwell:
"Basically, I'm not interested in doing research and I never have been... I'm interested in understanding, which is quite a different thing. And often to understand something you have to work it out yourself because no one else has done it."


Research Areas


Long-horizon planning and decision-making

Achieving long-horizon planning and decision-making capabilities, such as cooking a meal or cleaning a messy room, is essential for building intelligent robots. However, these tasks are challenging because they require selecting appropriate high-level actions, such as picking up a cup, and effectively planning how to execute those actions while satisfying physical and geometric constraints. We design task and motion planning algorithms to effectively address such challenges. Additionally, we are interested in exploring new problem classes by introducing practically relevant constraints and objectives.

Robot learning

We aim for robots to learn from past experiences and adapt their behaviors in a generalizable and robust manner to handle novel tasks. Recent advancements in deep learning and foundation models offer significant opportunities for robotics to embrace data-driven approaches by leveraging breakthroughs in computer vision and natural language processing. Robot learning encompasses, but is not limited to, the development of robot foundation models, the use of LLMs, and the learning of representations, symbols, skills, policies, and heuristics. In designing the learning pipeline, we often consider approaches such as few-shot learning, lifelong learning, and curriculum learning.

Interaction with other agents

Robots are often deployed in environments where they coexist with other robots or humans, working collaboratively toward a common goal. Interactions with other robots involve challenges such as task decomposition, allocation, and multi-robot planning. In contrast, interactions with humans require inferring human intentions or behaviors and dynamically adapting the robot's strategy based on these inferences. Ad-hoc teamwork aims to address these challenges, enabling effective and seamless human-robot collaboration.