collaborators

7 papers

math.PR2025

Stein's method for Fréchet approximation: a regularly varying functions approach

Paul Mansanarez, Guillaume Poly, Yvik Swan

We develop a variant of Stein's method of comparison of generators to bound the Kolmogorov, total variation, and Wasserstein-1 distances between distributions on the real line. Our…

math.PR2025

Edgeworth expansion on Wiener chaos

Paul Mansanarez, Guillaume Poly, Yvik Swan

Consider an element of the -th Wiener chaos $\WW_p$, and denote by $\prob_F$ its law. For a positive integer , let be the Radon measure with density…

math.ST2025

Normal approximation for the posterior in exponential families

Adrian Fischer, Robert E. Gaunt, Gesine Reinert +1

In this paper, we obtain quantitative, non-asymptotic, and data-dependent \textit{Bernstein-von Mises type} bounds on the normal approximation of the posterior distribution in expo…

math.ST2024

Stein's Method of Moments

Bruno Ebner, Adrian Fischer, Robert E. Gaunt +2

Stein operators allow to characterise probability distributions via differential operators. Based on these characterisations, we develop a new method of point estimation for margin…

math.ST2024

Stein's Method of Moments on the Sphere

Adrian Fischer, Robert E. Gaunt, Yvik Swan

We use Stein characterizations to obtain new moment-type estimators for the parameters of three classical spherical distributions (namely the Fisher-Bingham, the von Mises-Fisher,…

math.ST2024

Stein's method of moments for truncated multivariate distributions

Adrian Fischer, Robert E. Gaunt, Yvik Swan

We use Stein characterisations to derive new moment-type estimators for the parameters of several truncated multivariate distributions in the i.i.d. case; we also derive the asympt…