Zobrazeno 1 - 10
of 279
pro vyhledávání: '"Iooss, P."'
Heteroclinic for a 6-dimensional reversible system occuring in orthogonal domain walls in convection
Autor:
Iooss, Gérard
A six-dimensional reversible normal form system occurs in B{\'e}nard-Rayleigh convection between parallel planes, when we look for domain walls intersecting orthogonally (see Buffoni et al [1]). On the truncated system, we prove analytically the exis
Externí odkaz:
http://arxiv.org/abs/2410.11343
Autor:
Iooss, Gérard
In B{\'e}nard-Rayleigh convection we consider the pattern defect in orthogonal domain walls connecting a set of convective rolls with another set of rolls orthogonal to the first set. This is understood as an heteroclinic orbit of a reversible system
Externí odkaz:
http://arxiv.org/abs/2410.08594
Autor:
Ketema, Baalu Belay, Bousquet, Nicolas, Costantino, Francesco, Gamboa, Fabrice, Iooss, Bertrand, Sueur, Roman
Input variables in numerical models are often subject to several levels of uncertainty, usually modeled by probability distributions. In the context of uncertainty quantification applied to these models, studying the robustness of output quantities w
Externí odkaz:
http://arxiv.org/abs/2407.21542
Publikováno v:
36th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA '24), Jun 2024, Nantes, France
When designing an algorithm, one cares about arithmetic/computational complexity, but data movement (I/O) complexity plays an increasingly important role that highly impacts performance and energy consumption. For a given algorithm and a given I/O mo
Externí odkaz:
http://arxiv.org/abs/2404.16443
Autor:
Jaber, Edgar, Chabridon, Vincent, Remy, Emmanuel, Baudin, Michael, Lucor, Didier, Mougeot, Mathilde, Iooss, Bertrand
Long-term operation of nuclear steam generators can result in the occurrence of clogging, a deposition phenomenon that may increase the risk of mechanical and vibration loadings on tube bundles and internal structures as well as potentially affecting
Externí odkaz:
http://arxiv.org/abs/2401.05741
Autor:
Idrissi, Marouane Il, Bousquet, Nicolas, Gamboa, Fabrice, Iooss, Bertrand, Loubes, Jean-Michel
Performing an additive decomposition of arbitrary functions of random elements is paramount for global sensitivity analysis and, therefore, the interpretation of black-box models. The well-known seminal work of Hoeffding characterized the summands in
Externí odkaz:
http://arxiv.org/abs/2310.06567
Concerns have been raised about possible cancer risks after exposure to computed tomography (CT) scans in childhood. The health effects of ionizing radiation are then estimated from the absorbed dose to the organs of interest which is calculated, for
Externí odkaz:
http://arxiv.org/abs/2306.01353
In decommissioning projects of nuclear facilities, the radiological characterisation step aims to estimate the quantity and spatial distribution of different radionuclides. To carry out the estimation, measurements are performed on site to obtain pre
Externí odkaz:
http://arxiv.org/abs/2305.07314
Autor:
Cheng, Sibo, Quilodran-Casas, Cesar, Ouala, Said, Farchi, Alban, Liu, Che, Tandeo, Pierre, Fablet, Ronan, Lucor, Didier, Iooss, Bertrand, Brajard, Julien, Xiao, Dunhui, Janjic, Tijana, Ding, Weiping, Guo, Yike, Carrassi, Alberto, Bocquet, Marc, Arcucci, Rossella
Data Assimilation (DA) and Uncertainty quantification (UQ) are extensively used in analysing and reducing error propagation in high-dimensional spatial-temporal dynamics. Typical applications span from computational fluid dynamics (CFD) to geoscience
Externí odkaz:
http://arxiv.org/abs/2303.10462
Autor:
Idrissi, Marouane Il, Bousquet, Nicolas, Gamboa, Fabrice, Iooss, Bertrand, Loubes, Jean-Michel
Understanding the behavior of a black-box model with probabilistic inputs can be based on the decomposition of a parameter of interest (e.g., its variance) into contributions attributed to each coalition of inputs (i.e., subsets of inputs). In this p
Externí odkaz:
http://arxiv.org/abs/2301.02539