74 citations · 156 across the 28 of their papers we have counts for
4 papers · 1 filter
Automated Local Fourier Analysis (aLFA)
Karsten Kahl, Nils Kintscher
Local Fourier analysis is a commonly used tool to assess the quality and aid in the construction of geometric multigrid methods for translationally invariant operators. In this pap…
Deep Bayesian Active Semi-Supervised Learning
Matthias Rottmann, Karsten Kahl, Hanno Gottschalk
In many applications the process of generating label information is expensive and time consuming. We present a new method that combines active and semi-supervised deep learning to…
Schur complement solver for Quantum Monte-Carlo simulations of strongly interacting fermions
Maksim Ulybyshev, Nils Kintscher, Karsten Kahl +1
We present a non-iterative solver based on the Schur complement method for sparse linear systems of special form which appear in Quantum Monte-Carlo (QMC) simulations of strongly i…
Least Angle Regression Coarsening in Bootstrap Algebraic Multigrid
Karsten Kahl, Matthias Rottmann
The bootstrap algebraic multigrid framework allows for the adaptive construction of algebraic multigrid methods in situations where geometric multigrid methods are not known or not…