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05/05/2021
Space-time multilevel quadrature methods and their application for cardiac electrophysiology
We present a novel approach which aims at high-performance uncertainty q...
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04/12/2021
On the Globalization of ASPIN Employing Trust-Region Control Strategies – Convergence Analysis and Numerical Examples
The parallel solution of large scale non-linear programming problems, wh...
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03/26/2021
Multilevel Active-Set Trust-Region (MASTR) Method for Bound Constrained Minimization
We introduce a novel variant of the recursive multilevel trust-region (R...
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03/25/2021
A Matrix-free Multigrid Preconditioner for Jacobian-free Newton-Krylov Methods
In this work, we propose a multigrid preconditioner for Jacobian-free Ne...
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02/22/2021
Learning atrial fiber orientations and conductivity tensors from intracardiac maps using physics-informed neural networks
Electroanatomical maps are a key tool in the diagnosis and treatment of ...
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02/19/2021
GEASI: Geodesic-based Earliest Activation Sites Identification in cardiac models
The personalization of cardiac models is the cornerstone of patient-spec...
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02/16/2021
Multigrid and saddle-point preconditioners for unfitted finite element modelling of inclusions
In this work, we consider the modeling of inclusions in the material usi...
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10/30/2020
Space-time shape uncertainties in the forward and inverse problem of electrocardiography
In electrocardiography, the "classic" inverse problem consists of findin...
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07/25/2020
Large scale simulation of pressure induced phase-field fracture propagation using Utopia
Non-linear phase field models are increasingly used for the simulation o...
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06/28/2020
A Multilevel Approach to Training
We propose a novel training method based on nonlinear multilevel minimiz...
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06/23/2020
An experimental comparison of a space-time multigrid method with PFASST for a reaction-diffusion problem
We consider two parallel-in-time approaches applied to a (reaction) diff...
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06/11/2020
Frontiers in Mortar Methods for Isogeometric Analysis
Complex geometries as common in industrial applications consist of multi...
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04/13/2020
Multilevel Minimization for Deep Residual Networks
We present a new multilevel minimization framework for the training of d...
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12/01/2019
A Multigrid Method for a Nitsche-based Extended Finite Element Method
We present a tailored multigrid method for linear problems stemming from...
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11/14/2019
Space-time multilevel Monte Carlo methods and their application to cardiac electrophysiology
We present a novel approach aimed at high-performance uncertainty quanti...
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03/01/2019
Recursive multilevel trust region method with application to fully monolithic phase-field models of brittle fracture
The simulation of crack initiation and propagation in an elastic materia...
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12/31/2018
A shortest-path based clustering algorithm for joint human-machine analysis of complex datasets
Clustering is a technique for the analysis of datasets obtained by empir...
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08/21/2018
Smart energy models for atomistic simulations using a DFT-driven multifidelity approach
The reliability of atomistic simulations depends on the quality of the u...
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05/17/2017