Search Results for author: Donggun Lee

Found 5 papers, 0 papers with code

A Forward Reachability Perspective on Robust Control Invariance and Discount Factors in Reachability Analysis

no code implementations26 Oct 2023 Jason J. Choi, Donggun Lee, Boyang Li, Jonathan P. How, Koushil Sreenath, Sylvia L. Herbert, Claire J. Tomlin

We also formulate a zero-sum differential game between the control and disturbance, where the inevitable FRT is characterized by the zero-superlevel set of the value function.

Infinite-Horizon Reach-Avoid Zero-Sum Games via Deep Reinforcement Learning

no code implementations18 Mar 2022 Jingqi Li, Donggun Lee, Somayeh Sojoudi, Claire J. Tomlin

We address this problem by designing a new value function with a contracting Bellman backup, where the super-zero level set, i. e., the set of states where the value function is evaluated to be non-negative, recovers the reach-avoid set.

Q-Learning reinforcement-learning +1

A Computationally Efficient Hamilton-Jacobi-based Formula for State-Constrained Optimal Control Problems

no code implementations25 Jun 2021 Donggun Lee, Claire J. Tomlin

Based on the Lax formula [2], this paper proposes an HJ formula for the state-constrained optimal control problem for nonlinear systems.

Robust Control Barrier-Value Functions for Safety-Critical Control

no code implementations6 Apr 2021 Jason J. Choi, Donggun Lee, Koushil Sreenath, Claire J. Tomlin, Sylvia L. Herbert

This paper works towards unifying two popular approaches in the safety control community: Hamilton-Jacobi (HJ) reachability and Control Barrier Functions (CBFs).

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