Numerical analysis of the Monte-Carlo noise for the resolution of the deterministic and uncertain linear Boltzmann equation (comparison of non-intrusive gPC and MC …

G Poëtte - Journal of Computational and Theoretical Transport, 2022 - Taylor & Francis
Abstract Monte Carlo-generalized Polynomial Chaos (MC-gPC) has already been
thoroughly studied in the literature. MC-gPC both builds a gPC based reduced model of a …

Efficient uncertain keff computations with the Monte Carlo resolution of generalised Polynomial Chaos based reduced models

G Poëtte, E Brun - Journal of Computational Physics, 2022 - Elsevier
In this paper, we are interested in taking into account uncertainties for k eff computations in
neutronics. More generally, the material of this paper can be applied to propagate …

Multigroup-like MC resolution of generalised Polynomial Chaos reduced models of the uncertain linear Boltzmann equation (+ discussion on hybrid intrusive/non …

G Poëtte - Journal of Computational Physics, 2023 - Elsevier
In this paper, we are interested in propagating uncertainties through the linear Boltzmann
equation. Such model is intensively used in neutronics, photonics, socio-economics …

Uncertainty benchmarks for time-dependent transport problems

W Bennett, RG McClarren - Nuclear Science and Engineering, 2024 - Taylor & Francis
Verification solutions for uncertainty quantification (UQ) are presented for time-dependent
transport problems where, the scattering ratio, is uncertain. The method of polynomial chaos …

An analogy between solving Partial Differential Equations with Monte-Carlo schemes and the Optimisation process in Machine Learning (and few illustrations of its …

G Poëtte, D Lugato, P Novello - 2021 - hal.science
In this document, we revisit classical Machine Learning (ML) notions and algorithms under
the point of view of the numerician, ie the one who is interested in the resolution of partial …

Séminaire SISMA

G POËTTE - www-lihpc.cea.fr
Many physical applications rely on Monte-Carlo (MC) codes to solve partial differential
equations. The MC resolution implies the sampling of the variables $\mathscr (x, t, v) …

SISMA Seminar

G POËTTE - www-lihpc.cea.fr
Many physical applications rely on Monte-Carlo (MC) codes to solve partial differential
equations. The MC resolution implies the sampling of the variables $\mathscr (x, t, v) …