Learning risk-aware costmaps for traversability in challenging environments

DD Fan, AA Agha-Mohammadi… - IEEE robotics and …, 2021 - ieeexplore.ieee.org
One of the main challenges in autonomous robotic exploration and navigation in unknown
and unstructured environments is determining where the robot can or cannot safely move. A …

A general framework for learning-based distributionally robust MPC of Markov jump systems

M Schuurmans, P Patrinos - IEEE Transactions on Automatic …, 2023 - ieeexplore.ieee.org
In this article, we present a data-driven learning model predictive control (MPC) scheme for
chance-constrained Markov jump systems with unknown switching probabilities. Using …

Data-driven distributionally robust iterative risk-constrained model predictive control

A Zolanvari, A Cherukuri - 2022 European Control Conference …, 2022 - ieeexplore.ieee.org
This paper considers a risk-constrained infinite-horizon optimal control problem and
proposes to solve it in an iterative manner. Each iteration of the algorithm generates a …

Wasserstein distributionally robust control of partially observable linear stochastic systems

A Hakobyan, I Yang - IEEE Transactions on Automatic Control, 2024 - ieeexplore.ieee.org
Distributionally robust control (DRC) aims to effectively manage distributional ambiguity in
stochastic systems. While most existing works address inaccurate distributional information …

Wasserstein distributionally robust control of partially observable linear systems: Tractable approximation and performance guarantee

A Hakobyan, I Yang - 2022 IEEE 61st Conference on Decision …, 2022 - ieeexplore.ieee.org
Wasserstein distributionally robust control (WDRC) is an effective method for addressing
inaccurate distribution information about disturbances in stochastic systems. It provides …

Data-driven risk-sensitive model predictive control for safe navigation in multi-robot systems

A Navsalkar, AR Hota - 2023 IEEE International Conference on …, 2023 - ieeexplore.ieee.org
Safe navigation is a fundamental challenge in multi-robot systems due to the uncertainty
surrounding the future trajectory of the robots that act as obstacles for each other. In this …

Infusing model predictive control into meta-reinforcement learning for mobile robots in dynamic environments

J Shin, A Hakobyan, M Park, Y Kim… - IEEE Robotics and …, 2022 - ieeexplore.ieee.org
The successful operation of mobile robots requires them to adapt rapidly to environmental
changes. To develop an adaptive decision-making tool for mobile robots, we propose a …

Distributionally robust optimization with unscented transform for learning-based motion control in dynamic environments

A Hakobyan, I Yang - 2023 IEEE International Conference on …, 2023 - ieeexplore.ieee.org
Safety is one of the main challenges when applying learning-based motion controllers to
practical robotic systems, especially when the dynamics of the robots and their surrounding …

Contraction-Based Stochastic Model Predictive Control for Nonlinear Systems With Input Delay Using Multidimensional Taylor Network

GB Wang, HS Yan, XY Zheng - IEEE Transactions on Automatic …, 2023 - ieeexplore.ieee.org
For nonlinear systems with stochastic uncertainties and input delay, the existing control
approaches based on the robust mechanism are generally conservative in most practical …

Predictor-based constrained fixed-time sliding mode control of multi-UAV formation flight

M Khodaverdian, S Hajshirmohamadi… - Aerospace Science and …, 2024 - Elsevier
In this work, a predictor-based fixed-time sliding mode control is designed to tackle the
problem of achieving precise trajectory tracking control of multiple unmanned aerial vehicle …