Zobrazeno 1 - 10
of 911
pro vyhledávání: '"Levy, Bruno"'
This article revolves around shape and topology optimization, in the applicative context where the objective and constraint functionals depend on the solution to a physical boundary value problem posed on the optimized domain. We introduce a novel fr
Externí odkaz:
http://arxiv.org/abs/2409.07873
Autor:
Lévy, Bruno
In this article, I propose a numerical method to solve semi-discrete optimal transport problems for gigantic pointsets ($10^8$ points and more). By pushing the limits by several orders of magnitude, it opens the path to new applications in cosmology,
Externí odkaz:
http://arxiv.org/abs/2406.04192
Autor:
Lévy, Bruno
This article introduces a general mesh intersection algorithm that exactly computes the so-called Weiler model and that uses it to implement boolean operations with arbitrary multi-operand expressions, CSG (constructive solid geometry) and some mesh
Externí odkaz:
http://arxiv.org/abs/2405.12949
We study Monge-Amp\`ere gravity (MAG) as an effective theory of cosmological structure formation through optimal transport theory. MAG is based on the Monge-Amp\`ere equation, a nonlinear version of the Poisson equation, that relates the Hessian dete
Externí odkaz:
http://arxiv.org/abs/2404.07697
We demonstrate the effectiveness of one of the many multi-tracer analyses enabled by Optimal Transport (OT) reconstruction. Leveraging a semi-discrete OT algorithm, we determine the displacements between initial and observed positions of biased trace
Externí odkaz:
http://arxiv.org/abs/2403.11951
Autor:
Levy, Bruno do Prado Costa
O objetivo deste trabalho é averiguar a existência de incremento de acurácia nos modelos de previsão das diferentes categorias de consumo das famílias nos EUA ao se considerar a incerteza macroeconômica como variável explicativa. Grande parte
Recent research has emphasized the benefits of accurately reconstructing the initial Lagrangian positions of biased tracers from their positions at a later time, to gain cosmological information. A weighted semi-discrete optimal transport algorithm c
Externí odkaz:
http://arxiv.org/abs/2307.03671
Interpolating between measures supported by polygonal or polyhedral domains is a problem that has been recently addressed by the semi-discrete optimal transport framework. Within this framework, one of the domains is discretized with a set of samples
Externí odkaz:
http://arxiv.org/abs/2206.04529
A weighted, semi-discrete, fast optimal transport (OT) algorithm for reconstructing the Lagrangian positions of proto-halos from their evolved Eulerian positions is presented. The algorithm makes use of a mass estimate of the biased tracers and of th
Externí odkaz:
http://arxiv.org/abs/2203.01868
Autor:
Reynette, Nathan, Sagnières, Luc, Pequignot, Benjamin, Levy, Bruno, Zuily, Stephane, Chenuel, Bruno, Birnbaum, Ron, Sandoz, Baptiste, Lescroart, Mickael
Publikováno v:
In Resuscitation October 2024 203
