Risk-averse autonomous systems: A brief history and recent developments from the perspective of optimal control

Y Wang, MP Chapman - Artificial Intelligence, 2022 - Elsevier
We present an historical overview about the connections between the analysis of risk and
the control of autonomous systems. We offer two main contributions. Our first contribution is …

Step: Stochastic traversability evaluation and planning for risk-aware off-road navigation

DD Fan, K Otsu, Y Kubo, A Dixit, J Burdick… - arXiv preprint arXiv …, 2021 - arxiv.org
Although ground robotic autonomy has gained widespread usage in structured and
controlled environments, autonomy in unknown and off-road terrain remains a difficult …

Multi-robot coordination and planning in uncertain and adversarial environments

L Zhou, P Tokekar - Current Robotics Reports, 2021 - Springer
Abstract Purpose of Review Deploying a team of robots that can carefully coordinate their
actions can make the entire system robust to individual failures. In this report, we review …

Uncertainties in onboard algorithms for autonomous vehicles: Challenges, mitigation, and perspectives

K Yang, X Tang, J Li, H Wang, G Zhong… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
Autonomous driving is considered one of the revolutionary technologies shaping humanity's
future mobility and quality of life. However, safety remains a critical hurdle in the way of …

Risk-aware motion planning and control using CVaR-constrained optimization

A Hakobyan, GC Kim, I Yang - IEEE Robotics and Automation …, 2019 - ieeexplore.ieee.org
We propose a risk-aware motion planning and decision-making method that systematically
adjusts the safety and conservativeness in an environment with randomly moving obstacles …

Rmix: Learning risk-sensitive policies for cooperative reinforcement learning agents

W Qiu, X Wang, R Yu, R Wang, X He… - Advances in …, 2021 - proceedings.neurips.cc
Current value-based multi-agent reinforcement learning methods optimize individual Q
values to guide individuals' behaviours via centralized training with decentralized execution …

Chance-constrained sequential convex programming for robust trajectory optimization

T Lew, R Bonalli, M Pavone - 2020 European Control …, 2020 - ieeexplore.ieee.org
Planning safe trajectories for nonlinear dynamical systems subject to model uncertainty and
disturbances is challenging. In this work, we present a novel approach to tackle chance …

Risk-aware motion planning for autonomous vehicles with safety specifications

T Nyberg, C Pek, L Dal Col, C Norén… - 2021 IEEE intelligent …, 2021 - ieeexplore.ieee.org
Ensuring the safety of autonomous vehicles (AV s) in uncertain traffic scenarios is a major
challenge. In this paper, we address the problem of computing the risk that AV s violate a …

Quantile qt-opt for risk-aware vision-based robotic grasping

C Bodnar, A Li, K Hausman, P Pastor… - arXiv preprint arXiv …, 2019 - arxiv.org
The distributional perspective on reinforcement learning (RL) has given rise to a series of
successful Q-learning algorithms, resulting in state-of-the-art performance in arcade game …

Risk-averse control via CVaR barrier functions: Application to bipedal robot locomotion

M Ahmadi, X Xiong, AD Ames - IEEE Control Systems Letters, 2021 - ieeexplore.ieee.org
Enforcing safety in the presence of stochastic uncertainty is a challenging problem.
Traditionally, researchers have proposed safety in the statistical mean as a safety measure …