147 citations · 586 across the 23 of their papers we have counts for
24 papers
Uncertainty-aware Multi-fidelity Closure via Conditional Normalizing Flows
Jice Zeng, Shady E. Ahmed, David Barajas-Solano +1
Reduced-order models (ROMs) provide efficient surrogates for complex multiscale systems, but their predictive accuracy is often compromised by truncation errors and the inadequate…
On the dual advantage of placing observations through forward sensitivity analysis
Shady E Ahmed, Omer San, Sivaramakrishnan Lakshmivarahan +1
The four-dimensional variational data assimilation methodology for assimilating noisy observations into a deterministic model has been the workhorse of forecasting centers for over…
Forward Sensitivity Analysis and Mode Dependent Control for Closure Modeling of Galerkin Systems
Shady E. Ahmed, Omer San
Model reduction by projection-based approaches is often associated with losing some of the important features that contribute towards the dynamics of the retained scales. As a resu…
A Multifidelity deep operator network approach to closure for multiscale systems
Shady E. Ahmed, Panos Stinis
Projection-based reduced order models (PROMs) have shown promise in representing the behavior of multiscale systems using a small set of generalized (or latent) variables. Despite…
PyOED: An Extensible Suite for Data Assimilation and Model-Constrained Optimal Design of Experiments
Abhijit Chowdhary, Shady E. Ahmed, Ahmed Attia
This paper describes PyOED, a highly extensible scientific package that enables developing and testing model-constrained optimal experimental design (OED) for inverse problems. Spe…
Nonintrusive reduced order modeling of convective Boussinesq flows
Pedram H. Dabaghian, Shady E. Ahmed, Omer San
In this paper, we formulate three nonintrusive methods and systematically explore their performance in terms of the ability to reconstruct the quantities of interest and their pred…