Search Results for author: WeiYe Zhao

Found 8 papers, 4 papers with code

Learning Predictive Safety Filter via Decomposition of Robust Invariant Set

no code implementations12 Nov 2023 Zeyang Li, Chuxiong Hu, WeiYe Zhao, Changliu Liu

This paper presents a theoretical framework that bridges the advantages of both RMPC and RL to synthesize safety filters for nonlinear systems with state- and action-dependent uncertainty.

Model Predictive Control Reinforcement Learning (RL)

Absolute Policy Optimization

1 code implementation20 Oct 2023 WeiYe Zhao, Feihan Li, Yifan Sun, Rui Chen, Tianhao Wei, Changliu Liu

In recent years, trust region on-policy reinforcement learning has achieved impressive results in addressing complex control tasks and gaming scenarios.

Atari Games Continuous Control

Safety Index Synthesis with State-dependent Control Space

no code implementations21 Sep 2023 Rui Chen, WeiYe Zhao, Changliu Liu

This paper introduces an approach for synthesizing feasible safety indices to derive safe control laws under state-dependent control spaces.

State-wise Constrained Policy Optimization

1 code implementation21 Jun 2023 WeiYe Zhao, Rui Chen, Yifan Sun, Tianhao Wei, Changliu Liu

In particular, we introduce the framework of Maximum Markov Decision Process, and prove that the worst-case safety violation is bounded under SCPO.

Autonomous Driving reinforcement-learning +2

GUARD: A Safe Reinforcement Learning Benchmark

1 code implementation23 May 2023 WeiYe Zhao, Rui Chen, Yifan Sun, Ruixuan Liu, Tianhao Wei, Changliu Liu

Due to the diversity of algorithms and tasks, it remains difficult to compare existing safe RL algorithms.

Autonomous Driving reinforcement-learning +2

State-wise Safe Reinforcement Learning: A Survey

no code implementations6 Feb 2023 WeiYe Zhao, Tairan He, Rui Chen, Tianhao Wei, Changliu Liu

Despite the tremendous success of Reinforcement Learning (RL) algorithms in simulation environments, applying RL to real-world applications still faces many challenges.

Autonomous Driving reinforcement-learning +3

AutoCost: Evolving Intrinsic Cost for Zero-violation Reinforcement Learning

no code implementations24 Jan 2023 Tairan He, WeiYe Zhao, Changliu Liu

Results show that the converged policies with intrinsic costs in all environments achieve zero constraint violation and comparable performance with baselines.

reinforcement-learning Reinforcement Learning (RL)

Provably Safe Tolerance Estimation for Robot Arms via Sum-of-Squares Programming

1 code implementation18 Apr 2021 WeiYe Zhao, Suqin He, Changliu Liu

Tolerance estimation problems are prevailing in engineering applications.

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