1 code implementation • 1 Feb 2024 • Andres Pulido, Kyle Volle, Kristy Waters, Zachary I. Bell, Prashant Ganesh, Jane Shin
This neural network (NN)-based motion model serves as the prediction step in a particle filter for target state estimation and uncertainty quantification.
no code implementations • 18 Jan 2024 • Tochukwu Elijah Ogri, Muzaffar Qureshi, Zachary I. Bell, Kristy Waters, Rushikesh Kamalapurkar
This paper presents an integral concurrent learning (ICL)-based observer for a monocular camera to accurately estimate the Euclidean distance to features on a stationary object, under the restriction that state information is unavailable.
no code implementations • 6 Nov 2023 • Goutam Das, Michael Dorothy, Zachary I. Bell, Daigo Shishika
This paper studies a target-defense game played between a slow defender and a fast attacker.
no code implementations • 14 Oct 2023 • Zachary Lamb, Zachary I. Bell, Matthew Longmire, Jared Paquet, Prashant Ganesh, Ricardo Sanfelice
Recent literature in the field of machine learning (ML) control has shown promising theoretical results for a Deep Neural Network (DNN) based Nonlinear Adaptive Controller (DNAC) capable of achieving trajectory tracking for nonlinear systems.
no code implementations • 4 Apr 2023 • Tochukwu Elijah Ogri, Zachary I. Bell, Rushikesh Kamalapurkar
Real-world control applications in complex and uncertain environments require adaptability to handle model uncertainties and robustness against disturbances.
no code implementations • 13 Oct 2022 • Tochukwu Elijah Ogri, S. M. Nahid Mahmud, Zachary I. Bell, Rushikesh Kamalapurkar
Real-world control applications in complex and uncertain environments require adaptability to handle model uncertainties and robustness against disturbances.
Model-based Reinforcement Learning reinforcement-learning +1
no code implementations • 19 Sep 2022 • Goutam Das, Michael Dorothy, Zachary I. Bell, Daigo Shishika
In this paper we consider a target-guarding differential game where the defender must protect a linearly translating line-segment by intercepting an attacker who tries to reach it.
no code implementations • 6 Sep 2022 • Zifan Wang, Yi Shen, Zachary I. Bell, Scott Nivison, Michael M. Zavlanos, Karl H. Johansson
Specifically, the agents use the conditional value at risk (CVaR) as a risk measure and rely on bandit feedback in the form of the cost values of the selected actions at every episode to estimate their CVaR values and update their actions.
no code implementations • 4 Apr 2022 • S M Nahid Mahmud, Moad Abudia, Scott A Nivison, Zachary I. Bell, Rushikesh Kamalapurkar
Safe model-based reinforcement learning techniques based on a barrier transformation have recently been developed to address this problem.
Model-based Reinforcement Learning reinforcement-learning +1
no code implementations • 1 Oct 2021 • S M Nahid Mahmud, Moad Abudia, Scott A Nivison, Zachary I. Bell, Rushikesh Kamalapurkar
The ability to learn and execute optimal control policies safely is critical to realization of complex autonomy, especially where task restarts are not available and/or the systems are safety-critical.
Model-based Reinforcement Learning reinforcement-learning +1
no code implementations • 24 Jul 2020 • S M Nahid Mahmud, Scott A Nivison, Zachary I. Bell, Rushikesh Kamalapurkar
In recent years, reinforcement learning approaches that rely on persistent excitation have been combined with a barrier transformation to learn the optimal control policies under state constraints.
Model-based Reinforcement Learning reinforcement-learning +2