For algorithms based on interacting particle systems that admit a mean-field description, convergence analysis is often more accessible at the mean-field level. In order to transpose convergence results obtained at the mean-field level to the finite ensemble size setting, it is desirable to show that the particle dynamics converge in an appropriate...
Concentration inequalities, a major tool in probability theory, quantify how much a random variable deviates from a certain quantity. This paper proposes a systematic convex optimization approach to studying and generating concentration inequalities with independent random variables. Specifically, we extend the generalized problem of moments to ind...
This note is concerned with the problem of minimizing a separable, convex, composite (smooth and nonsmooth) function subject to linear constraints. We study a randomized block-coordinate interpretation of the Chambolle-Pock primal-dual algorithm, based on inexact proximal gradient steps. A specificity of the considered algorithm is its robustness, ...
The penetration of renewable energies requires additional storages to deal with intermittency. Accordingly, there is growing interest in evaluating the opportunity cost (usage value) associated with stored energy in large storages, a cost obtained by solving a multistage stochastic optimization problem. Today, to compute usage values under uncertai...
The railway track consists of two rails which are solicited the loads from passing trains. Due to the dynamic nature of these loads, the total forces applied to each rail are unequal and asymmetric. However, analytical models that simplify the track as a single beam cannot accurately describe the track responses. In this paper, we calculate the for...
Thermal tides are atmospheric planetary-scale waves with periods that are harmonics of the solar day. In the Martian atmosphere thermal tides are known to be especially significant compared to any other known planet. Based on the data set of pressure timeseries produced by the InSight lander, which is unprecedented in terms of accuracy and temporal...
Malgré la place qu’occupe la consommation dans la vie des individus et le temps passé dans les lieux marchands, la sociologie n’a pas fait du commerce de détail un domaine de recherche délimité. Les enquêtes ne sont toutefois pas inexistantes mais le commerce ne figure bien souvent qu’à l’arrière-plan d’analyses consacrées au travail, à l’emploi, à...
The Arabian Sea remained largely unexplored from the 1990's until the 2010's, and most recent studies with in situ data were focused on climatological and seasonal time scales. Thus, in-situ experiments focusing on mesoscale dynamics in this eddy rich sub-basin, are useful. The PHYSINDIEN campaign in May 2019 collected in-situ measurements of both ...
We present recent advances in path-integral formulations designed for unbiased Monte Carlo sensitivity estimation (in the form of partial derivatives) within a coupled physics model. We establish the theoretical foundation and illustrate the approach by estimating instantaneous atmospheric radiative forcings. In climate studies, these quantities am...
Over the past decade, asset managers have positioned themselves as strategic gatekeepers in the management and deployment of capital across the world. The scholarship on asset manager capitalism is increasingly examining how this industry acquires, retains and uses its power, as well as the broader repercussions of their agencies. This article cont...
