no code implementations • 19 Nov 2023 • Leonardo D. González, Victor M. Zavala
We show that this simple approach (which we call BOIS) enables the exploitation of structural knowledge, such as that arising in interconnected systems as well as systems that embed multiple GP models and combinations of physics and GP models.
1 code implementation • 19 Jul 2023 • Shengli Jiang, Shiyi Qin, Reid C. Van Lehn, Prasanna Balaprakash, Victor M. Zavala
To that end, we introduce AutoGNNUQ, an automated uncertainty quantification (UQ) approach for molecular property prediction.
1 code implementation • 17 Mar 2023 • Weiqi Zhang, Victor M. Zavala
The power grid is undergoing significant restructuring driven by the adoption of wind/solar power and the incorporation of new flexible technologies that can shift load in space and time (e. g., data centers, battery storage, and modular manufacturing).
1 code implementation • 10 Feb 2023 • David L. Cole, Gerardo J. Ruiz-Mercado, Victor M. Zavala
We demonstrate the capabilities of our framework by using case studies in the State of Wisconsin; here, we aim to identify upstream nutrient pollutant sources that arise from agricultural practices and trace downstream impacts to waterbodies, rivers, and streams.
no code implementations • 22 Dec 2022 • Alexander Engelmann, Sungho Shin, François Pacaud, Victor M. Zavala
The real-time operation of large-scale infrastructure networks requires scalable optimization capabilities.
no code implementations • 14 Oct 2022 • Shengli Jiang, Shiyi Qin, Joshua L. Pulsipher, Victor M. Zavala
We discuss basic concepts of convolutional neural networks (CNNs) and outline uses in manufacturing.
1 code implementation • 3 Oct 2022 • Leonardo D. González, Victor M. Zavala
However, a key limitation of BO is that it is an inherently sequential algorithm (one experiment is proposed per round) and thus cannot directly exploit high-throughput (parallel) experiments.
1 code implementation • 15 Apr 2022 • Weiqi Zhang, Philip A. Tominac, Victor M. Zavala
Ambitious renewable portfolio standards motivate the incorporation of energy storage resources (ESR) as sources of flexibility.
no code implementations • 13 Apr 2022 • Weiqi Zhang, Line A. Roald, Victor M. Zavala
An obstacle that arises here is the lack of computationally-tractable DC operation models that can capture objectives, constraints, and information flows that arise at the interface of DCs and the power grid.
no code implementations • 3 Feb 2022 • Joshua L. Pulsipher, Luke D. J. Coutinho, Tyler A. Soderstrom, Victor M. Zavala
We show that this framework enables the safe use of computer vision sensors in process control architectures.
no code implementations • 24 May 2021 • Weiqi Zhang, Victor M. Zavala
Central to our study is the concept of virtual links, which provide non-physical pathways that can be used by DaCes to shift power loads (by shifting computing loads) across space and time.
1 code implementation • 13 Jan 2021 • Shengli Jiang, Victor M. Zavala
CNNs highlight features from the grid data by performing convolution operations with different types of operators.
no code implementations • 8 Jan 2021 • Sungho Shin, Mihai Anitescu, Victor M. Zavala
We study solution sensitivity for nonlinear programs (NLPs) whose structures are induced by graphs.
Stochastic Optimization Optimization and Control
no code implementations • 22 Dec 2020 • Haeun Yoo, Victor M. Zavala, Jay H. Lee
We first examine the ability of a neural network to represent a value function when uniform, linear, or DP functions are added to prevent constraint violation.
no code implementations • 11 Dec 2020 • Yue Shao, Yicheng Hu, Victor M. Zavala
We study logistical investment flexibility provided by modular processing technologies for mitigating risk.
Optimization and Control
1 code implementation • 5 Nov 2020 • Paul F. Lang, Sungho Shin, Victor M. Zavala
Motivation: Estimating model parameters from experimental observations is one of the key challenges in systems biology and can be computationally very expensive.
no code implementations • 29 Sep 2020 • Qiugang Lu, Ranjeet Kumar, Victor M. Zavala
The approach is motivated by the observation that evaluating the closed-loop performance of MPC by trial-and-error is time-consuming (e. g., every closed-loop simulation can involve solving thousands of optimization problems).
no code implementations • 11 Jun 2020 • Qiugang Lu, Victor M. Zavala
We show that the dynamics of this high-dimensional space can be accurately predicted by using a 40-dimensional DMD model and we show that the field can be manipulated satisfactorily by using an MPC controller that embeds the low-dimensional DMD model.
2 code implementations • 9 Jun 2020 • Jordan Jalving, Sungho Shin, Victor M. Zavala
We present a general graph-based modeling abstraction for optimization that we call an OptiGraph.
Optimization and Control
no code implementations • 14 May 2020 • Sen Na, Sungho Shin, Mihai Anitescu, Victor M. Zavala
We study the convergence properties of an overlapping Schwarz decomposition algorithm for solving nonlinear optimal control problems (OCPs).
1 code implementation • 16 Mar 2020 • Sungho Shin, Qiugang Lu, Victor M. Zavala
This paper presents unifying results for subspace identification (SID) and dynamic mode decomposition (DMD) for autonomous dynamical systems.
no code implementations • 12 Mar 2020 • Sungho Shin, Alex D. Smith, S. Joe Qin, Victor M. Zavala
In this work, we show that this algorithm is a specialized variant of a coordinate maximization algorithm.
4 code implementations • 12 Dec 2018 • Jordan Jalving, Yankai Cao, Victor M. Zavala
We present graph-based modeling abstractions to represent cyber-physical dependencies arising in complex systems.
Optimization and Control