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We study the weak convergence of iterates of so-called centred kernel quadratic stochastic operators. These iterations, in a population evolution setting, describe the additive perturbation of the arithmetic mean of the traits of an…

概率论 · 数学 2020-11-23 Krzysztof Bartoszek , Joachim Domsta , Małgorzata Pułka

Our article is concerned with adaptive sampling schemes for Bayesian inference that update the proposal densities using previous iterates. We introduce a copula based proposal density which is made more efficient by combining it with…

统计方法学 · 统计学 2010-02-26 Ralph Silva , Robert Kohn , Paolo Giordani , Xiuyan Mun

In this paper, we analyze the relative errors in various reliability measures due to the tacit assumption that the components associated with a $n$-component series system or a parallel system are independently working where the components…

统计理论 · 数学 2025-03-28 Subarna Bhattacharjee , Aninda Kumar Nanda , Subhashree Patra

A copula of continuous random variables $X$ and $Y$ is called an \emph{implicit dependence copula} if there exist functions $\alpha$ and $\beta$ such that $\alpha(X) = \beta(Y)$ almost surely, which is equivalent to $C$ being factorizable…

统计理论 · 数学 2016-06-29 Songkiat Sumetkijakan

Over the last couple of decades, several copula based methods have been proposed in the literature to test for the independence among several random variables. But these existing tests are not invariant under monotone transformations of the…

统计理论 · 数学 2019-11-15 Angshuman Roy , Anil Ghosh , Alok Goswami , C. A. Murthy

Several collective risk models have recently been proposed by relaxing the widely used but controversial assumption of independence between claim frequency and severity. Approaches include the bivariate copula model, random effect model,…

应用统计 · 统计学 2019-06-11 Rosy Oh , Jae Youn Ahn , Woojoo Lee

Bayesian inference is attractive for its coherence and good frequentist properties. However, it is a common experience that eliciting a honest prior may be difficult and, in practice, people often take an {\em empirical Bayes} approach,…

统计理论 · 数学 2012-04-09 Sonia Petrone , Judith Rousseau , Catia Scricciolo

This monograph aims at presenting the core weak convergence theory for sequences of random vectors with values in $\mathbb{R}^k$. In some places, a more general formulation in metric spaces is provided. It lays out the necessary foundation…

概率论 · 数学 2016-11-14 Gane Samb Lo

Regression analysis is one of the most popularly used statistical technique which only measures the direct effect of independent variables on dependent variable. Path analysis looks for both direct and indirect effects of independent…

统计方法学 · 统计学 2024-06-26 Alam Ali , Ashok Kumar Pathak , Mohd Arshad , Ayyub Sheikhi

Deheuvels [J. Multivariate Anal. 11 (1981) 102--113] and Genest and R\'{e}millard [Test 13 (2004) 335--369] have shown that powerful rank tests of multivariate independence can be based on combinations of asymptotically independent…

统计理论 · 数学 2009-09-29 Christian Genest , Jean-François Quessy , Bruno Rémillard

A random coefficient autoregressive process is deeply investigated in which the coefficients are correlated. First we look at the existence of a strictly stationary causal solution, we give the second-order stationarity conditions and the…

统计理论 · 数学 2018-03-29 Frédéric Proïa , Marius Soltane

We give an introduction to a notion of weak dependence which is more general than mixing and allows to treat for example processes driven by discrete innovations as they appear with time series bootstrap. As a typical example, we analyze…

概率论 · 数学 2008-12-18 Paul Doukhan , Michael H. Neumann

A weak measurement on a system is made by coupling a pointer weakly to the system and then measuring the position of the pointer. If the initial wavefunction for the pointer is real, the mean displacement of the pointer is proportional to…

量子物理 · 物理学 2009-11-13 Graeme Mitchison

Uncertain information on input parameters of reliability models is usually modeled by considering these parameters as random, and described by marginal distributions and a dependence structure of these variables. In numerous real-world…

应用统计 · 统计学 2018-04-30 Nazih Benoumechiara , Bertrand Michel , Philippe Saint-Pierre , Nicolas Bousquet

In this paper the nonparametric quantile regression model is considered in a location-scale context. The asymptotic properties of the empirical independence process based on covariates and estimated residuals are investigated. In particular…

统计理论 · 数学 2016-09-27 Melanie Birke , Natalie Neumeyer , Stanislav Volgushev

We show that all multivariate Extreme Value distributions, which are the possible weak limits of the $K$ largest order statistics of iid sequences, have the same copula, the so called K-extremal copula. This copula is described through…

概率论 · 数学 2015-03-13 Glauco Valle , Marco Aurelio Sanfins

In the last decade, simplified vine copula models have been an active area of research. They build a high dimensional probability density from the product of marginals densities and bivariate copula densities. Besides parametric models,…

统计方法学 · 统计学 2017-06-29 Thomas Nagler , Christian Schellhase , Claudia Czado

The difficulties of estimating and representing the distributions of functional data mean that principal component methods play a substantially greater role in functional data analysis than in more conventional finite-dimensional settings.…

统计理论 · 数学 2016-08-16 Peter Hall , Céline Vial

In this paper, we obtain general representations for the joint distributions and copulas of arbitrary dependent random variables absolutely continuous with respect to the product of given one-dimensional marginal distributions. The…

统计理论 · 数学 2016-08-16 Victor H. de la Peña , Rustam Ibragimov , Shaturgun Sharakhmetov

Given $n$ independent random vectors with common density $f$ on $\mathbb{R}^d$, we study the weak convergence of three empirical-measure based estimators of the convex $\lambda$-level set $L_\lambda$ of $f$, namely the excess mass set, the…

统计理论 · 数学 2020-06-04 Philippe Berthet , John H. J. Einmahl