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The first essential ingredient to build up Stein's method for a continuous target distribution is to identify a so-called \textit{Stein operator}, namely a linear differential operator with polynomial coefficients. In this paper, we…

概率论 · 数学 2022-01-11 Ehsan Azmoodeh , Dario Gasbarra , Robert E. Gaunt

Stein operators are differential operators which arise within the so-called Stein's method for stochastic approximation. We propose a new mechanism for constructing such operators for arbitrary (continuous or discrete) parametric…

概率论 · 数学 2013-05-23 Christophe Ley , Yvik Swan

In this paper we present a general framework for Stein's method for multivariate continuous distributions. The approach gives a collection of Stein characterisations, among which we highlight score-Stein operators and kernel Stein…

概率论 · 数学 2019-11-14 Guillaume Mijoule , Gesine Reinert , Yvik Swan

This article deals with Stein characterizations of probability distributions. We provide a general framework for interpreting these in terms of the parameters of the underlying distribution. In order to do so we introduce two concepts (a…

概率论 · 数学 2011-12-02 Christophe Ley , Yvik Swan

This paper provides a general framework for Stein's density method for multivariate continuous distributions. The approach associates to any probability density function a canonical operator and Stein class, as well as an infinite…

概率论 · 数学 2023-04-27 Guillaume Mijoule , Martin Raič , Gesine Reinert , Yvik Swan

We propose a new general version of Stein's method for univariate distributions. In particular we propose a canonical definition of the Stein operator of a probability distribution {which is based on a linear difference or differential-type…

概率论 · 数学 2016-03-28 Christophe Ley , Gesine Reinert , Yvik Swan

We provide a general result for finding Stein operators for the product of two independent random variables whose Stein operators satisfy a certain assumption, extending a recent result of Gaunt, Mijoule and Swan \cite{gms18}. This…

概率论 · 数学 2020-09-28 Robert E. Gaunt , Guillaume Mijoule , Yvik Swan

We build upon recent advances on the distributional aspect of Stein's method to propose a novel and flexible technique for computing Stein operators for random variables that can be written as products of independent random variables. We…

概率论 · 数学 2018-09-28 Robert E. Gaunt , Guillaume Mijoule , Yvik Swan

Stein's method compares probability distributions through the study of a class of linear operators called Stein operators. While mainly studied in probability and used to underpin theoretical statistics, Stein's method has led to…

In this paper we propose a new, simple and explicit mechanism allowing to derive Stein operators for random variables whose characteristic function satisfies a simple ODE. We apply this to study random variables which can be represented as…

概率论 · 数学 2023-07-06 Benjamin Arras , Ehsan Azmoodeh , Guillaume Poly , Yvik Swan

Stein's method for measuring convergence to a continuous target distribution relies on an operator characterizing the target and Stein factor bounds on the solutions of an associated differential equation. While such operators and bounds…

机器学习 · 统计学 2018-11-14 Jackson Gorham , Andrew B. Duncan , Sebastian J. Vollmer , Lester Mackey

We generalize the so-called density approach to Stein characterizations of probability distributions. We prove an elementary factorization property of the resulting Stein operator in terms of a generalized (standardized) score function. We…

概率论 · 数学 2011-11-11 Christophe Ley , Yvik Swan

Stein operators allow to characterise probability distributions via differential operators. Based on these characterisations, we develop a new method of point estimation for marginal parameters of strictly stationary and ergodic processes,…

统计理论 · 数学 2024-12-05 Bruno Ebner , Adrian Fischer , Robert E. Gaunt , Babette Picker , Yvik Swan

Stein's method (Stein, 1973; 1981) is a powerful tool for statistical applications and has significantly impacted machine learning. Stein's lemma plays an essential role in Stein's method. Previous applications of Stein's lemma either…

机器学习 · 统计学 2025-02-04 Wu Lin , Mohammad Emtiyaz Khan , Mark Schmidt

We present, in a unified way, a Stein methodology for infinitely divisible laws (without Gaussian component) having finite first moment. Based on a correlation representation, we obtain a characterizing non-local Stein operator which boils…

概率论 · 数学 2019-04-08 Benjamin Arras , Christian Houdré

We provide a new perspective on Stein's so-called density approach by introducing a new operator and characterizing class which are valid for a much wider family of probability distributions on the real line. We prove an elementary…

概率论 · 数学 2013-04-05 Christophe Ley , Yvik Swan

In this paper, a new method based on probability generating functions is used to obtain multiple Stein operators for various random variables closely related to Poisson, binomial and negative binomial distributions. Also, Stein operators…

概率论 · 数学 2016-05-10 N. S. Upadhye , V. Cekanavicius , P. Vellaisamy

We extend Stein's lemma for averages that explicitly contain the Gaussian random variable at a power. We present two proofs for this extension of Stein's lemma, with the first being a rigorous proof by mathematical induction. The…

概率论 · 数学 2022-06-27 Konstantinos Mamis

Stein's method has been widely used to achieve distributional approximations for probability distributions defined in Euclidean spaces. Recently, techniques to extend Stein's method to manifold-valued random variables with distributions…

统计理论 · 数学 2022-09-20 Xiaoda Qu , Baba C. Vemuri

From the distributional characterizations that lie at the heart of Stein's method we derive explicit formulae for the mass functions of discrete probability laws that identify those distributions. These identities are applied to develop…

统计方法学 · 统计学 2022-02-16 Steffen Betsch , Bruno Ebner , Franz Nestmann
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