Search Results for author: Sifa Zheng

Found 5 papers, 2 papers with code

Zeroth-Order Actor-Critic

no code implementations29 Jan 2022 YuHeng Lei, Jianyu Chen, Shengbo Eben Li, Sifa Zheng

Zeroth-order optimization methods and policy gradient based first-order methods are two promising alternatives to solve reinforcement learning (RL) problems with complementary advantages.

Continuous Control

Learn Zero-Constraint-Violation Policy in Model-Free Constrained Reinforcement Learning

no code implementations25 Nov 2021 Haitong Ma, Changliu Liu, Shengbo Eben Li, Sifa Zheng, Wenchao Sun, Jianyu Chen

Existing methods mostly use the posterior penalty for dangerous actions, which means that the agent is not penalized until experiencing danger.

reinforcement-learning

Joint Synthesis of Safety Certificate and Safe Control Policy using Constrained Reinforcement Learning

no code implementations15 Nov 2021 Haitong Ma, Changliu Liu, Shengbo Eben Li, Sifa Zheng, Jianyu Chen

This paper proposes a novel approach that simultaneously synthesizes the energy-function-based safety certificate and learns the safe control policy with CRL.

reinforcement-learning

Feasible Actor-Critic: Constrained Reinforcement Learning for Ensuring Statewise Safety

1 code implementation22 May 2021 Haitong Ma, Yang Guan, Shegnbo Eben Li, Xiangteng Zhang, Sifa Zheng, Jianyu Chen

The safety constraints commonly used by existing safe reinforcement learning (RL) methods are defined only on expectation of initial states, but allow each certain state to be unsafe, which is unsatisfying for real-world safety-critical tasks.

reinforcement-learning Safe Exploration +1

Model-based Constrained Reinforcement Learning using Generalized Control Barrier Function

1 code implementation2 Mar 2021 Haitong Ma, Jianyu Chen, Shengbo Eben Li, Ziyu Lin, Yang Guan, Yangang Ren, Sifa Zheng

Model information can be used to predict future trajectories, so it has huge potential to avoid dangerous region when implementing reinforcement learning (RL) on real-world tasks, like autonomous driving.

Autonomous Driving reinforcement-learning +1

Cannot find the paper you are looking for? You can Submit a new open access paper.