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The Poisson multinomial distribution (PMD) describes the distribution of the sum of $n$ independent but non-identically distributed random vectors, in which each random vector is of length $m$ with 0/1 valued elements and only one of its…

统计计算 · 统计学 2022-01-13 Zhengzhi Lin , Yueyao Wang , Yili Hong

This paper introduces Schur-constant equilibrium distribution models of dimension n for arithmetic non-negative random variables. Such a model is defined through the (several orders) equilibrium distributions of a univariate survival…

概率论 · 数学 2017-09-29 Anna Castañer , M Mercè Claramunt

We present a new and general method of weighted least square univariate regression where the dependent variable is expanded as a series of suitably chosen functions of the independent variables. Each term of the series is obtained by an…

数值分析 · 数学 2021-03-26 Nilotpal Kanti Sinha

We propose estimating the scale parameter (mean of the eigenvalues) of the scatter matrix of an unspecified elliptically symmetric distribution using weights obtained by solving Tyler's M-estimator of the scatter matrix. The proposed…

统计方法学 · 统计学 2023-05-09 Esa Ollila , Daniel P. Palomar , Frederic Pascal

We consider a nonparametric Bayesian approach to estimate the diffusion coefficient of a stochastic differential equation given discrete time observations over a fixed time interval. As a prior on the diffusion coefficient, we employ a…

统计理论 · 数学 2020-07-22 Shota Gugushvili , Frank van der Meulen , Moritz Schauer , Peter Spreij

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

Polynomial approximations to boolean functions have led to many positive results in computer science. In particular, polynomial approximations to the sign function underly algorithms for agnostically learning halfspaces, as well as…

计算复杂性 · 计算机科学 2014-12-09 Mark Bun , Thomas Steinke

We propose a fast bivariate smoothing approach for symmetric surfaces that has a wide range of applications. We show how it can be applied to estimate the covariance function in longitudinal data as well as multiple additive covariances in…

统计计算 · 统计学 2016-09-23 Jona Cederbaum , Fabian Scheipl , Sonja Greven

In a variety of problems originating in supervised, unsupervised, and reinforcement learning, the loss function is defined by an expectation over a collection of random variables, which might be part of a probabilistic model or the external…

机器学习 · 计算机科学 2016-01-06 John Schulman , Nicolas Heess , Theophane Weber , Pieter Abbeel

In this note we consider the distribution of values of weighted sums of the von Mangoldt arithmetical function. By using a formula for the distribution of values of trigonometric polynomials, we are able to present evidence supporting the…

数论 · 数学 2024-11-12 Eugenio P. Balanzario

In this article we derive an unbiased expression for the expected mean-squared error associated with continuously differentiable estimators of the noncentrality parameter of a chi-square random variable. We then consider the task of…

应用统计 · 统计学 2012-10-15 Florian Luisier , Thierry Blu , Patrick J. Wolfe

This letter presents an improved version of diffusion least mean ppower (LMP) algorithm for distributed estimation. Instead of sum of mean square errors, a weighted sum of mean square error is defined as the cost function for global and…

机器学习 · 统计学 2016-08-09 H. Zayyani , M. Korki

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

Histogram-valued variables are a particular kind of variables studied in Symbolic Data Analysis where to each entity under analysis corresponds a distribution that may be represented by a histogram or by a quantile function. Linear…

统计方法学 · 统计学 2013-03-26 Sónia Dias , Paula Brito

The aim of this paper is to extend Azzalini's method. This extension is done in two stages: consider two dependent and non-identically distributed random variables say $X_1$ and $X_2$; model the dependence between $X_1$ and $X_2$ by a…

统计理论 · 数学 2018-03-06 Filippo Domma , Božidar V. Popović , Saralees Nadarajah

We present a class of diffusion-based algorithms to draw samples from high-dimensional probability distributions given their unnormalized densities. Ideally, our methods can transport samples from a Gaussian distribution to a specified…

机器学习 · 计算机科学 2025-02-04 Anand Jerry George , Nicolas Macris

We review some probabilistic properties of the sum-of-digits function of random integers. New asymptotic approximations to the total variation distance and its refinements are also derived. Four different approaches are used: a classical…

概率论 · 数学 2014-10-14 Louis H. Y. Chen , Hsien-Kuei Hwang , Vytas Zacharovas

In the present paper we generate binary pseudorandom sequences using generalized polynomials. A generalized polynomial is a function in whose description we not only allow addition and product (as it is the case in usual polynomials) but…

数论 · 数学 2025-09-25 Manfred G. Madritsch , Robert F. Tichy

The exact distribution of the square sum of Dirichlet random variables is given by two different univariate integral representations. Alternatively, three representations by orthogonal series with Jacobi or Legendre polynomials are derived.…

统计理论 · 数学 2010-08-25 Thomas Royen

In this paper, we show that the halfspace depth random variable for samples from a univariate distribution with a notion of center is distributed as a uniform distribution on the interval [0,1/2]. The simplicial depth random variable has a…

统计方法学 · 统计学 2023-04-27 Rui Ding