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相关论文: Estimates for non-leading distribution functions

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Non-parametric estimation of a convex discrete distribution may be of interest in several applications, such as the estimation of species abundance distribution in ecology. In this paper we study the least squares estimator of a discrete…

统计方法学 · 统计学 2012-02-29 Cécile Durot , François Koladjo , Sylvie Huet , Stéphane Robin

The paper develops new methods of non-parametric estimation a compound Poisson distribution. Such a problem arise, in particular, in the inference of a Levy process recorded at equidistant time intervals. Our key estimator is based on…

统计理论 · 数学 2015-10-19 Alexey Lindo , Sergei Zuyev , Serik Sagitov

We are interested in the threshold phenomena for propagation in nonlocal diffusion equations with some compactly supported initial data. In the so-called bistable and ignition cases, we provide the first quantitative estimates for such…

偏微分方程分析 · 数学 2022-01-06 Matthieu Alfaro , Arnaud Ducrot , Hao Kang

This letter presents a non-parametric modeling approach for forecasting stochastic dynamical systems on low-dimensional manifolds. The key idea is to represent the discrete shift maps on a smooth basis which can be obtained by the diffusion…

动力系统 · 数学 2015-03-25 Tyrus Berry , Dimitrios Giannakis , John Harlim

Recently, many studies have shed light on the high adaptivity of deep neural network methods in nonparametric regression models, and their superior performance has been established for various function classes. Motivated by this…

统计理论 · 数学 2023-07-04 Akihiro Oga , Yuta Koike

This paper deals with a copies-based continuously differentiable and strictly decreasing estimator of the drift function for stochastic differential equations defining recurrent diffusion processes. The first part of our paper deals with…

统计理论 · 数学 2026-03-17 Nicolas Marie

Estimating function inference is indispensable for many common point process models where the joint intensities are tractable while the likelihood function is not. In this paper we establish asymptotic normality of estimating function…

统计理论 · 数学 2019-11-18 Frédéric Lavancier , Arnaud Poinas , Rasmus Waagepetersen

In this paper, we consider the robust adaptive non parametric estimation problem for the drift coefficient in diffusion processes. An adaptive model selection procedure, based on the improved weighted least square estimates, is proposed.…

统计理论 · 数学 2019-09-24 Evgeny Pchelintsev , Svyatoslav Perelevskiy , Irina Makarova

We consider a simple mean reverting diffusion process, with piecewise constant drift and diffusion coefficients, discontinuous at a fixed threshold. We discuss estimation of drift and diffusion parameters from discrete observations of the…

统计理论 · 数学 2024-03-12 Sara Mazzonetto , Paolo Pigato

Inferring a diffusion equation from discretely-observed measurements is a statistical challenge of significant importance in a variety of fields, from single-molecule tracking in biophysical systems to modeling financial instruments.…

机器学习 · 统计学 2023-12-12 Yinuo Ren , Yiping Lu , Lexing Ying , Grant M. Rotskoff

The noncentral $t$-distribution is a generalization of the Student's $t$-distribution. In this paper we suggest an alternative approach for computing the cumulative distribution function (CDF) of the noncentral $t$-distribution which is…

统计计算 · 统计学 2014-10-24 Viktor Witkovsky

In the present paper new light is shed on the non-central extensions of the Dirichlet distribution. Due to several probabilistic and inferential properties and to the easiness of parameter interpretation, the Dirichlet distribution proves…

统计理论 · 数学 2021-08-02 Carlo Orsi

It is pointed out that the Tsallis entropy functional represented in terms of the escort distribution is not concave of the entropic index $q$ is less than unity. It is emphasized that the escort distribution is a secondary object…

统计力学 · 物理学 2009-10-31 Sumiyoshi Abe

The task of state estimation in active distribution systems faces a major challenge due to the integration of different measurements with multiple reporting rates. As a result, distribution systems are essentially unobservable in real time,…

最优化与控制 · 数学 2024-05-13 J. G. De la Varga , S. Pineda , J. M. Morales , Á. Porras

We discuss nonparametric estimation of the trend coefficient in models governed by a stochastic differential equation driven by a multiplicative stochastic volatility.

统计理论 · 数学 2024-11-12 B. L. S. Prakasa Rao

We propose a novel method for estimating nonseparable selection models. We show that, for a given selection function, the potential outcome distributions are nonparametrically identified from the selected outcome distributions and can be…

计量经济学 · 经济学 2026-05-05 Fan Wu , Yi Xin

In complex systems, crucial parameters are often subject to unpredictable changes in time. Climate, biological evolution and networks provide numerous examples for such non-stationarities. In many cases, improved statistical models are…

统计金融 · 定量金融 2015-12-09 Frederik Meudt , Martin Theissen , Rudi Schäfer , Thomas Guhr

The statistical analysis of covariance matrices occurs in many important applications, e.g. in diffusion tensor imaging and longitudinal data analysis. We consider the situation where it is of interest to estimate an average covariance…

统计方法学 · 统计学 2010-10-20 Ian L. Dryden , Alexey Kolydenko , Diwei Zhou , Bai Li

A group theoretical procedure for parametrizing non-forward matrix elements of non-local QCD operators is introduced. The related (two-variable) distribution amplitudes are given as sum over power corrections of the double distributions.…

高能物理 - 唯象学 · 物理学 2009-11-07 Bodo Geyer , Markus Lazar , Dieter Robaschik

This paper is devoted to the estimation of the shift parameter in a semiparametric regression model when the distribution of the observation times is unknown. Hence, we propose to use a stochastic algorithm which takes into account the…

统计理论 · 数学 2013-12-23 Philippe Fraysse