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A doubly type-II censored scheme is an important sampling scheme in the life testing experiment and reliability engineering. In the present commutation, we have considered estimating ordered scale parameters of two exponential distributions…

统计理论 · 数学 2024-12-09 Shrajal Bajpai , Lakshmi Kanta Patra

Estimation of the ordered scale parameter of a two scale mixture of the exponential distribution is considered under Stein loss and symmetric loss. Under certain conditions, we prove that the inadmissibility equivariant estimator exhibits…

统计理论 · 数学 2025-12-11 Somnath Mondal , Lakshmi Kanta Patra

The present manuscript is concerned with component-wise estimation of the positive power of ordered restricted standard deviation of two normal populations with certain restrictions on the means. We propose several improved estimators under…

统计理论 · 数学 2025-08-26 Somnath Mondal , Lakshmi Kanta Patra

We consider component-wise equivariant estimation of order restricted location/scale parameters of a general bivariate distribution under quite general conditions on underlying distributions and the loss function. This paper unifies various…

统计理论 · 数学 2022-07-05 Naresh Garg , Neeraj Misra

We consider the problem of estimating the error variance in a general linear model when the error distribution is assumed to be spherically symmetric, but not necessary Gaussian. In particular we study the case of a scale mixture of…

统计理论 · 数学 2013-03-18 Yuzo Maruyama , William E. Strawderman

In various applied areas such as reliability engineering, molecular biology, finance, etc., the measure of uncertainty of a probability distribution plays an important role. In the present work, we consider the estimation of a function of…

统计理论 · 数学 2023-02-09 Lakshmi Kanta Patra , Shrajal Bajpai , Neeraj Misra

Due to measurement noise, a common problem in in various fields is how to estimate the ratio of two functions. We consider this problem of estimating the ratio of two functions in a nonparametric regression model. Assuming the noise is…

统计方法学 · 统计学 2013-11-28 Jelena Markovic , Lie Wang

The problem of estimating location (scale) parameters $\theta_1$ and $\theta_2$ of two distributions when the ordering between them is known apriori (say, $\theta_1\leq \theta_2$) has been extensively studied in the literature. Many of…

统计理论 · 数学 2022-07-05 Naresh Garg , Neeraj Misra

We present estimators for entropy and other functions of a discrete probability distribution when the data is a finite sample drawn from that probability distribution. In particular, for the case when the probability distribution is a joint…

comp-gas · 物理学 2008-02-03 David R. Wolf , David H. Wolpert

In the usual statistical inference problem, we estimate an unknown parameter of a statistical model using the information in the random sample. A priori information about the parameter is also known in several real-life situations. One such…

The problem of nonlinear functional of parameters, such as differential entropy, has received much attention in information theory and statistics. In many situations, prior information about the parameters is available in the form of order…

统计理论 · 数学 2026-03-10 Somnath Mandal , Lakshmi Kanta Patra

The Unit Weibull distribution with parameters $\alpha$ and $\beta$ is considered to study in the context of dual generalized order statistics. For the analysis purpose, Bayes estimators based on symmetric and asymmetric loss functions are…

统计方法学 · 统计学 2025-02-06 Qazi J. Azhad , Abdul Nasir Khan , Bhagwati Devi , Jahangir Sabbir Khan , Ayush Tripathi

In this work, the estimation of the multivariate normal mean by different classes of shrinkage estimators is investigated. The risk associated with the balanced loss function is used to compare two estimators. We start by considering…

统计理论 · 数学 2021-07-30 Abdelkader Benkhaled , Mekki Terbeche , Abdenour Hamdaoui

We present estimators for entropy and other functions of a discrete probability distribution when the data is a finite sample drawn from that probability distribution. In particular, for the case when the probability distribution is a joint…

comp-gas · 物理学 2008-02-03 David H. Wolpert , David R. Wolf

This paper proposes a unified class of generalized location-scale mixture of multivariate elliptical distributions and studies integral stochastic orderings of random vectors following such distributions. Given a random vector…

统计理论 · 数学 2023-02-28 Tong Pu , Yiying Zhang , Chuancun Yin

We consider component-wise estimation of order restricted location/scale parameters $\theta_1$ and $\theta_2$ ($\theta_1\leq \theta_2$) of a general bivariate distribution under the squared error loss function. To find improvements over the…

统计理论 · 数学 2022-07-05 Naresh Garg , Neeraj Misra

The relative performance of competing point forecasts is usually measured in terms of loss or scoring functions. It is widely accepted that these scoring function should be strictly consistent in the sense that the expected score is…

统计理论 · 数学 2019-04-08 Tobias Fissler , Johanna F. Ziegel

The problem of simultaneous estimation of order restricted location parameters $\theta_1$ and $\theta_2$ ($-\infty<\theta_1\leq \theta_2<\infty$) of a bivariate location symmetric distribution, under a general loss function, is being…

统计理论 · 数学 2023-09-26 Naresh Garg , Neeraj Misra

An exact, closed form, and easy to compute expression for the mean integrated squared error (MISE) of a kernel estimator of a normal mixture cumulative distribution function is derived for the class of arbitrary order Gaussian-based…

统计方法学 · 统计学 2020-03-04 Vitaliy Oryshchenko

Normal variance mixtures are a class of multivariate distributions that generalize the multivariate normal by randomizing (or mixing) the covariance matrix via multiplication by a non-negative random variable W. The multivariate t…

统计计算 · 统计学 2020-06-16 Erik Hintz , Marius Hofert , Christiane Lemieux
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