Zobrazeno 1 - 10
of 18 846
pro vyhledávání: '"A, Rousset"'
Autor:
Journel, Lucas, Rousset, Mathias
We study mean-field particle approximations of normalized Feynman-Kac semi-groups, usually called Fleming-Viot or Feynman-Kac particle systems. Assuming various large time stability properties of the semi-group uniformly in the initial condition, we
Externí odkaz:
http://arxiv.org/abs/2412.15820
This work proposes an adaptive sequential Monte Carlo sampling algorithm for solving inverse Bayesian problems in a context where a (costly) likelihood evaluation can be approximated by a surrogate, constructed from previous evaluations of the true l
Externí odkaz:
http://arxiv.org/abs/2410.18833
Autor:
Rousset, Frédéric, Schratz, Katharina
A large toolbox of numerical schemes for dispersive equations has been established, based on different discretization techniques such as discretizing the variation-of-constants formula (e.g., exponential integrators) or splitting the full equation in
Externí odkaz:
http://arxiv.org/abs/2405.10572
In this work, we consider the relativistic Vlasov-Maxwell system, linearized around a spatially homogeneous equilibrium, set in the whole space $\mathbb{R}^3 \times \mathbb{R}^3$. The equilibrium is assumed to belong to a class of radial, smooth, rap
Externí odkaz:
http://arxiv.org/abs/2402.11402
Autor:
Rousset, Frédéric, Sun, Changzhen
In this paper, we establish the transverse linear asymptotic stability of one-dimensional small-amplitude solitary waves of the gravity water-waves system. More precisely, we show that the semigroup of the linearized operator about the solitary wave
Externí odkaz:
http://arxiv.org/abs/2402.11115
Autor:
Rohart, S., Campiglio, P., Repain, V., Nahas, Y., Chacon, C., Girard, Y., Lagoute, J., Thiaville, A., Rousset, S.
Publikováno v:
Phys. Rev. Lett. 104, 137202 (2010)
The magnetic susceptibility of self-organized two-dimensional Co nanodots on Au(111) has been measured as a function of their size in the 2-7~nm diameter range. We show that the activation energy for the thermal reversal displays a power law behavior
Externí odkaz:
http://arxiv.org/abs/2402.04903
This paper considers the classical problem of sampling with Monte Carlo methods a target rare event distribution defined by a score function that is very expensive to compute. We assume we can build using evaluations of the true score, an approximate
Externí odkaz:
http://arxiv.org/abs/2312.15256
Publikováno v:
SIAM J. Numer. Anal., 62(5), 2071--2086 (2024)
For the numerical solution of the cubic nonlinear Schr\"{o}dinger equation with periodic boundary conditions, a pseudospectral method in space combined with a filtered Lie splitting scheme in time is considered. This scheme is shown to converge even
Externí odkaz:
http://arxiv.org/abs/2311.14366
Autor:
Xu-Darme, Romain, Benois-Pineau, Jenny, Giot, Romain, Quénot, Georges, Chihani, Zakaria, Rousset, Marie-Christine, Zhukov, Alexey
In the field of Explainable AI, multiples evaluation metrics have been proposed in order to assess the quality of explanation methods w.r.t. a set of desired properties. In this work, we study the articulation between the stability, correctness and p
Externí odkaz:
http://arxiv.org/abs/2311.12860
Autor:
Raphaël Savelli, Vincent Le Fouest, Mélanie Becker, Garance Perrois, Fabienne Rousset, Christine Dupuy, Marc Simard, Dimitris Menemenlis
Publikováno v:
Communications Earth & Environment, Vol 5, Iss 1, Pp 1-10 (2024)
Abstract Intertidal mudflats colonized by sediment-dwelling microphytobenthos deliver a wide range of ecosystem services. Here we simulate the response of microphytobenthos, located on a temperate tidal mudflat along the French Atlantic coast in Nort
Externí odkaz:
https://doaj.org/article/84965d4217904795b97a1023b5d185a9
