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Changrak Choi


4800 Oak Grove Drive
M/S 198-219

Pasadena, CA 91101

Member of:

347N - Maritime and Multi-Agent Autonomy

Changrak Choi

Robotics Technologist


Dr. Changrak Choi is a Robotics Technologist at Jet Propulsion Lab. His research focuses on trajectory and motion planning for autonomous systems that are dynamically interesting, drawing upon algorithms, optimization and controls. The systems of interest include autonomous helicopters, rovers, legged robots, on-water vehicles, and soft robots.

Changrak earned his PhD from MIT as a member of Laboratory for Information and Decision Systems (LIDS) in Aerospace Robotics and Embedded Systems group. He received M.S. from MIT and B.S. from Seoul National University, both in Mechanical Engineering and has been recipient of Korean Government Scholarship and Kwanjeong Scholarship during M.S. and PhD respectively.


PhD, Mechanical Engineering, Massachusetts Institute of Technology, 2018
MS, Mechanical Engineering, Massachusetts Institute of Technology, 2012
BS, Mechanical Engineering, Seoul National University, 2010

Research Interests

- Motion planning for dynamical systems
- Multi-agent motion planning
- Trajectory planning via optimization
- Optimization and Control
- Swarms
- Soft Robotics


  1. J. Briden, C. Choi, K. S. Yun, R. Linares, and A. Cauligi, "Constraint-Informed Learning for Warm Starting Trajectory Optimization," pp. 1-13, 21 December 2023.