Search Results for author: Chuangchuang Sun

Found 13 papers, 4 papers with code

Towards an Adaptable and Generalizable Optimization Engine in Decision and Control: A Meta Reinforcement Learning Approach

no code implementations4 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.

Imitation Learning Meta Reinforcement Learning +2

Constrained Meta-Reinforcement Learning for Adaptable Safety Guarantee with Differentiable Convex Programming

1 code implementation15 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.

Autonomous Driving Meta-Learning +1

Distributionally Safe Reinforcement Learning under Model Uncertainty: A Single-Level Approach by Differentiable Convex Programming

no code implementations3 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.

Safe Reinforcement Learning

Wasserstein Distributionally Robust Control Barrier Function using Conditional Value-at-Risk with Differentiable Convex Programming

no code implementations15 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.

On the Optimality, Stability, and Feasibility of Control Barrier Functions: An Adaptive Learning-Based Approach

no code implementations5 May 2023 Alaa Eddine Chriat, Chuangchuang Sun

Safety has been a critical issue for the deployment of learning-based approaches in real-world applications.

An efficient approach for nonconvex semidefinite optimization via customized alternating direction method of multipliers

no code implementations7 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).

Community Detection Image Segmentation +1

Influencing Long-Term Behavior in Multiagent Reinforcement Learning

1 code implementation7 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.

reinforcement-learning Reinforcement Learning (RL)

ROMAX: Certifiably Robust Deep Multiagent Reinforcement Learning via Convex Relaxation

no code implementations14 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.

reinforcement-learning Reinforcement Learning (RL)

Reachability Analysis of Neural Feedback Loops

1 code implementation9 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.

Temporal-Logic-Based Intermittent, Optimal, and Safe Continuous-Time Learning for Trajectory Tracking

no code implementations6 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.

Reinforcement Learning (RL) Safe Reinforcement Learning

A Policy Gradient Algorithm for Learning to Learn in Multiagent Reinforcement Learning

1 code implementation31 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.

reinforcement-learning Reinforcement Learning (RL)

FISAR: Forward Invariant Safe Reinforcement Learning with a Deep Neural Network-Based Optimize

no code implementations19 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.

reinforcement-learning Reinforcement Learning (RL) +1

Scaling Up Multiagent Reinforcement Learning for Robotic Systems: Learn an Adaptive Sparse Communication Graph

no code implementations2 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.

Reinforcement Learning (RL)

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