Ensemble quantile networks: Uncertainty-aware reinforcement learning with applications in autonomous driving

CJ Hoel, K Wolff, L Laine - IEEE Transactions on Intelligent …, 2023 - ieeexplore.ieee.org
Reinforcement learning (RL) can be used to create a decision-making agent for autonomous
driving. However, previous approaches provide black-box solutions, which do not offer …

Risk-averse model uncertainty for distributionally robust safe reinforcement learning

J Queeney, M Benosman - Advances in Neural Information …, 2024 - proceedings.neurips.cc
Many real-world domains require safe decision making in uncertain environments. In this
work, we introduce a deep reinforcement learning framework for approaching this important …

Safe control for nonlinear systems with stochastic uncertainty via risk control barrier functions

A Singletary, M Ahmadi… - IEEE Control Systems …, 2022 - ieeexplore.ieee.org
Guaranteeing safety for robotic and autonomous systems in real-world environments is a
challenging task that requires the mitigation of stochastic uncertainties. Control barrier …

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 …

Risk-aware motion planning in partially known environments

FS Barbosa, B Lacerda, P Duckworth… - 2021 60th IEEE …, 2021 - ieeexplore.ieee.org
Recent trends envisage robots being deployed in areas deemed dangerous to humans,
such as buildings with gas and radiation leaks. In such situations, the model of the …

Constrained risk-averse Markov decision processes

M Ahmadi, U Rosolia, MD Ingham, RM Murray… - Proceedings of the …, 2021 - ojs.aaai.org
We consider the problem of designing policies for Markov decision processes (MDPs) with
dynamic coherent risk objectives and constraints. We begin by formulating the problem in a …

Mean-variance policy iteration for risk-averse reinforcement learning

S Zhang, B Liu, S Whiteson - Proceedings of the AAAI Conference on …, 2021 - ojs.aaai.org
We present a mean-variance policy iteration (MVPI) framework for risk-averse control in a
discounted infinite horizon MDP optimizing the variance of a per-step reward random …

Risk-sensitive motion planning using entropic value-at-risk

A Dixit, M Ahmadi, JW Burdick - 2021 European Control …, 2021 - ieeexplore.ieee.org
We consider the problem of risk-sensitive motion planning in the presence of randomly
moving obstacles. To this end, we adopt a model predictive control (MPC) scheme and pose …

Robust task scheduling for heterogeneous robot teams under capability uncertainty

B Fu, W Smith, DM Rizzo, M Castanier… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
This article develops a stochastic programming framework for multiagent systems, where
task decomposition, assignment, and scheduling problems are simultaneously optimized …

Temporal robustness of stochastic signals

L Lindemann, A Rodionova, G Pappas - Proceedings of the 25th ACM …, 2022 - dl.acm.org
We study the temporal robustness of stochastic signals. This topic is of particular interest in
interleaving processes such as multi-agent systems where communication and individual …