no code implementations • 4 Jan 2024 • Sungwook Yang, Chaoying Pei, Ran Dai, Chuangchuang Sun
Many machine learning-based works proposed to improve MPC by a) learning or fine-tuning the dynamics/ cost function, or b) learning to optimize for the update of the MPC controllers.
1 code implementation • 15 Dec 2023 • Minjae Cho, Chuangchuang Sun
Despite remarkable achievements in artificial intelligence, the deployability of learning-enabled systems in high-stakes real-world environments still faces persistent challenges.
no code implementations • 3 Oct 2023 • Alaa Eddine Chriat, Chuangchuang Sun
This end-to-end differentiable framework with safety constraints, to the best of our knowledge, is the first tractable single-level solution to address distributional safety.
no code implementations • 15 Sep 2023 • Alaa Eddine Chriat, Chuangchuang Sun
Control Barrier functions (CBFs) have attracted extensive attention for designing safe controllers for their deployment in real-world safety-critical systems.
no code implementations • 5 May 2023 • Alaa Eddine Chriat, Chuangchuang Sun
Safety has been a critical issue for the deployment of learning-based approaches in real-world applications.
no code implementations • 7 Sep 2022 • Chuangchuang Sun
We investigate a class of general combinatorial graph problems, including MAX-CUT and community detection, reformulated as quadratic objectives over nonconvex constraints and solved via the alternating direction method of multipliers (ADMM).
1 code implementation • 7 Mar 2022 • Dong-Ki Kim, Matthew Riemer, Miao Liu, Jakob N. Foerster, Michael Everett, Chuangchuang Sun, Gerald Tesauro, Jonathan P. How
An effective approach that has recently emerged for addressing this non-stationarity is for each agent to anticipate the learning of other agents and influence the evolution of future policies towards desirable behavior for its own benefit.
no code implementations • 14 Sep 2021 • Chuangchuang Sun, Dong-Ki Kim, Jonathan P. How
In a multirobot system, a number of cyber-physical attacks (e. g., communication hijack, observation perturbations) can challenge the robustness of agents.
1 code implementation • 9 Aug 2021 • Michael Everett, Golnaz Habibi, Chuangchuang Sun, Jonathan P. How
While the solutions are less tight than previous (semidefinite program-based) methods, they are substantially faster to compute, and some of those computational time savings can be used to refine the bounds through new input set partitioning techniques, which is shown to dramatically reduce the tightness gap.
no code implementations • 6 Apr 2021 • Aris Kanellopoulos, Filippos Fotiadis, Chuangchuang Sun, Zhe Xu, Kyriakos G. Vamvoudakis, Ufuk Topcu, Warren E. Dixon
In this paper, we develop safe reinforcement-learning-based controllers for systems tasked with accomplishing complex missions that can be expressed as linear temporal logic specifications, similar to those required by search-and-rescue missions.
1 code implementation • 31 Oct 2020 • Dong-Ki Kim, Miao Liu, Matthew Riemer, Chuangchuang Sun, Marwa Abdulhai, Golnaz Habibi, Sebastian Lopez-Cot, Gerald Tesauro, Jonathan P. How
A fundamental challenge in multiagent reinforcement learning is to learn beneficial behaviors in a shared environment with other simultaneously learning agents.
no code implementations • 19 Jun 2020 • Chuangchuang Sun, Dong-Ki Kim, Jonathan P. How
To drive the constraint violation monotonically decrease, we take the constraints as Lyapunov functions and impose new linear constraints on the policy parameters' updating dynamics.
no code implementations • 2 Mar 2020 • Chuangchuang Sun, Macheng Shen, Jonathan P. How
Through this sparsity structure, the agents can communicate in an effective as well as efficient way via only selectively attending to agents that matter the most and thus the scale of the MARL problem is reduced with little optimality compromised.