Results 31 to 40 of about 74,320 (358)

On sequential estimation of a normal distribution having equal mean and variance

open access: yesStatistica, 2017
Mukhopadhyay and Cicconetti \cite{mc2004} derived the Maximum Likelihood Estimator (MLE) and the Uniformly Minimum Variance Unbiased Estimator (UMVUE) of $\theta$ in $N (\theta, \theta)$ and discussed their application to purely sequential and two-stage ...
Saralees Nadarajah, Idika E. Okorie
doaj   +1 more source

A Bayesian Shrinkage Approach in Weibull Type -II Censored Data Using Prior Point Information

open access: yesRevstat Statistical Journal, 2009
In the present paper we study the performance of the Bayes Shrinkage estimators for the scale parameter of the Weibull distribution under the squared error loss and the LINEX loss functions in the presence of a prior point information of the scale ...
Gyan Prakash , D.C. Singh
doaj   +1 more source

COMPARISON OF MINQUE AND SIMPLE ESTIMATOR OF THE ERROR VARIANCE IN THE GAUSS MARKOFF MODEL

open access: yesJournal of Kufa for Mathematics and Computer, 2010
The problem of estimation of variance components occurs in many areas of research. This paper is devoted to study the comparison between Minimum Norm Quadratic Unbiased Estimator (MINQUE) and Ordinary Least Square Estimator (OLSE) of s 2 in the Gauss ...
Abdul-Hussein Saber AL-MOUEL
doaj   +1 more source

Can we define a best estimator in simple one-dimensional cases?

open access: yes, 2013
International audienceWhat is the best estimator for assessing a parameter of a probability distribution from a small number of measurements? Is the same answer valid for a location parameter like the mean as for a scale parameter like the variance?
Lantz, Éric, Vernotte, François
core   +3 more sources

On Estimation of Reliability Functions using Record values from Proportional Hazard Rate Model

open access: yesAustrian Journal of Statistics, 2019
Two measures of reliability functions, namely R(t)=P(X>t) and P=P ...
Ajit Chaturvedi, Ananya Malhotra
doaj   +1 more source

A Robust Solution to Variational Importance Sampling of Minimum Variance

open access: yesEntropy, 2020
Importance sampling is a Monte Carlo method where samples are obtained from an alternative proposal distribution. This can be used to focus the sampling process in the relevant parts of space, thus reducing the variance. Selecting the proposal that leads
Jerónimo Hernández-González   +1 more
doaj   +1 more source

Optimal Determination of the Equilibrium Displacement of a Damped Harmonic Oscillator in the Presence of Thermal Noise

open access: yes, 2004
Using a matched filter technique, we derive the minimum variance, unbiased estimator for the equilibrium displacement of a damped harmonic oscillator in thermal equilibrium when interactions with the thermal bath are the leading source of noise.
Boynton, P. E.   +2 more
core   +1 more source

Mobility State Detection of Cellular-Connected UAVs Based on Handover Count Statistics

open access: yesIEEE Open Journal of Vehicular Technology, 2023
Estimating the speed of aerial user equipment (UE) is critically important to provide reliable mobility management for cellular-connected unmanned aerial vehicles (UAVs) since this can enhance the quality of service.
Md Moin Uddin Chowdhury   +3 more
doaj   +1 more source

Some equalities for estimations of variance components in a general linear model and its restricted and transformed models [PDF]

open access: yes, 2010
For the unknown positive parameter σ2 in a general linear model ℳ={y,Xβ,σ2Σ}, the two commonly used estimations are the simple estimator (SE) and the minimum norm quadratic unbiased estimator (MINQUE).
Liu, Chunmei, Tian, Yongge
core   +1 more source

Establishment of Preliminary Test Estimators and Preliminary Test Confidence Intervals for Measures of Reliability of an Exponentiated Distribution Based on Type-II Censoring

open access: yesStatistica, 2019
The present paper has developed the preliminary test estimators (PTEs) of the model parameter raised to certain power, σp, and the two measures of reliability, namely, the reliability function, R(t ) and the reliability of an item or a system, P of an ...
Ajit Chaturvedi, Anshika Bhatnagar
doaj   +1 more source

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