3 citations · 6 across the 3 of their papers we have counts for
8 papers
Bayesian Dynamical System Identification With Unified Sparsity Priors And Model Uncertainty
Prem Ratan Mohan Ram, Ulrich Römer, Richard Semaan
This work is concerned with uncertainty quantification in reduced-order dynamical system identification. Reduced-order models for system dynamics are ubiquitous in design and contr…
Goal-oriented a posteriori estimation of numerical errors in the solution of multiphysics systems
Mahesh Narayanamurthi, Ulrich Römer, Adrian Sandu
This paper develops a general methodology for a posteriori error estimation in time-dependent multiphysics numerical simulations. The methodology builds upon the generalized-struct…
Yield Optimization based on Adaptive Newton-Monte Carlo and Polynomial Surrogates
Mona Fuhrländer, Niklas Georg, Ulrich Römer +1
In this paper we present an algorithm for yield estimation and optimization exploiting Hessian based optimization methods, an adaptive Monte Carlo (MC) strategy, polynomial surroga…
Uncertainty Modeling and Analysis of the European X-ray Free Electron Laser Cavities Manufacturing Process
Jacopo Corno, Niklas Georg, Shahnam Gorgi Zadeh +9
This paper reports on comprehensive efforts on uncertainty quantification and global sensitivity analysis for accelerator cavity design. As a case study object the TESLA shaped sup…
Coupled Simulation of Transient Heat Flow and Electric Currents in Thin Wires: Application to Bond Wires in Microelectronic Chip Packaging
Thorben Casper, Ulrich Römer, Sebastian Schöps +1
This work addresses the simulation of heat flow and electric currents in thin wires. An important application is the use of bond wires in microelectronic chip packaging. The heat d…
Enhanced adaptive surrogate models with applications in uncertainty quantification for nanoplasmonics
Niklas Georg, Dimitrios Loukrezis, Ulrich Römer +1
We propose an efficient surrogate modeling technique for uncertainty quantification. The method is based on a well-known dimension-adaptive collocation scheme. We improve the schem…