From the 1 of 668 papers with an AI index.
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5 papers · 2 filters
Efficiency of the Wang-Landau algorithm: a simple test case
G. Fort, B. Jourdain, E. Kuhn +2
We analyze the efficiency of the Wang-Landau algorithm to sample a multimodal distribution on a prototypical simple test case. We show that the exit time from a metastable state is…
A nonintrusive method to approximate linear systems with nonlinear parameter dependence
Fabien Casenave, Alexandre Ern, Tony Lelièvre +1
We consider a family of linear systems with system matrix depending on a parameter and for simplicity parameter-independent right-hand side . These linear sys…
A convergent scheme for Hamilton-Jacobi equations on a junction: application to traffic
Guillaume Costeseque, Jean-Patrick Lebacque, Régis Monneau
In this paper, we consider first order Hamilton-Jacobi (HJ) equations posed on a ``junction'', that is to say the union of a finite number of half-lines with a unique common point.…
Greedy algorithms for high-dimensional eigenvalue problems
Eric Cancès, Virginie Ehrlacher, Tony Lelièvre
In this article, we present two new greedy algorithms for the computation of the lowest eigenvalue (and an associated eigenvector) of a high-dimensional eigenvalue problem, and pro…
Coupled BEM-FEM for the convected Helmholtz equation with non-uniform flow in a bounded domain
Fabien Casenave, Alexandre Ern, Guillaume Sylvand
We consider the convected Helmholtz equation modeling linear acoustic propagation at a fixed frequency in a subsonic flow around a scattering object. The flow is supposed to be uni…