Managing uncertainty in data-driven simulation-based optimization
Optimization using data from complex simulations has become an attractive decision-
making option, due to ability to embed high-fidelity, non-linear understanding of processes …
making option, due to ability to embed high-fidelity, non-linear understanding of processes …
Set-valued state estimation of nonlinear discrete-time systems with nonlinear invariants based on constrained zonotopes
This paper presents new methods for set-valued state estimation of discrete-time nonlinear
systems whose trajectories are known to satisfy nonlinear equality constraints, called …
systems whose trajectories are known to satisfy nonlinear equality constraints, called …
Efficient interaction-aware interval analysis of neural network feedback loops
S Jafarpour, A Harapanahalli… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
In this paper, we propose a computationally efficient framework for interval reachability of
systems with neural network controllers. Our approach leverages inclusion functions for the …
systems with neural network controllers. Our approach leverages inclusion functions for the …
Comparison of advanced set-based fault detection methods with classical data-driven and observer-based methods for uncertain nonlinear processes
Automated fault detection (FD) methods are essential for safe and profitable operation of
complex engineered systems. Both data-driven and model-based methods have been …
complex engineered systems. Both data-driven and model-based methods have been …
Tight remainder-form decomposition functions with applications to constrained reachability and interval observer design
M Khajenejad, SZ Yong - arXiv preprint arXiv:2103.08638, 2021 - arxiv.org
This paper proposes a tractable family of remainder-form mixed-monotone decomposition
functions that are useful for over-approximating the image set of nonlinear mappings in …
functions that are useful for over-approximating the image set of nonlinear mappings in …
Global optimization of stiff dynamical systems
ME Wilhelm, AV Le, MD Stuber - AIChE Journal, 2019 - Wiley Online Library
We present a deterministic global optimization method for nonlinear programming
formulations constrained by stiff systems of ordinary differential equation (ODE) initial value …
formulations constrained by stiff systems of ordinary differential equation (ODE) initial value …
Tight remainder-form decomposition functions with applications to constrained reachability and guaranteed state estimation
M Khajenejad, SZ Yong - IEEE Transactions on Automatic …, 2023 - ieeexplore.ieee.org
In this article, we propose a tractable family of remainder-form mixed-monotone
decomposition functions that are useful for overapproximating the image set of nonlinear …
decomposition functions that are useful for overapproximating the image set of nonlinear …
Set-based fault diagnosis for uncertain nonlinear systems
Automated fault diagnosis algorithms aim to identify the root cause of a fault after it is
detected, which is crucial for determining a safe and effective response. Set-based methods …
detected, which is crucial for determining a safe and effective response. Set-based methods …
Accurate uncertainty propagation for discrete-time nonlinear systems using differential inequalities with model redundancy
This article presents new methods for computing tight interval enclosures of the reachable
sets of discrete-time nonlinear systems subject to bounded uncertainties. These methods …
sets of discrete-time nonlinear systems subject to bounded uncertainties. These methods …
Extended McCormick relaxation rules for handling empty arguments representing infeasibility
J Ye, JK Scott - Journal of Global Optimization, 2023 - Springer
McCormick's relaxation technique is one of the most versatile and commonly used methods
for computing the convex relaxations necessary for deterministic global optimization. The …
for computing the convex relaxations necessary for deterministic global optimization. The …