Results 31 to 40 of about 172,938 (287)

Statistical Modeling and Estimation of Censored Pathloss Data [PDF]

open access: yes, 2015
Pathloss is typically modeled using a log-distance power law with a large-scale fading term that is log-normal. However, the received signal is affected by the dynamic range and noise floor of the measurement system used to sound the channel, which can ...
Abbas, Taimoor   +3 more
core   +2 more sources

Multilevel Richardson-Romberg extrapolation [PDF]

open access: yes, 2016
We propose and analyze a Multilevel Richardson-Romberg (MLRR) estimator which combines the higher order bias cancellation of the Multistep Richardson-Romberg method introduced in [Pa07] and the variance control resulting from the stratification ...
Lemaire, Vincent, Pagès, Gilles
core   +3 more sources

On Estimation Following Subset Selection from Truncated Poisson Distributions under Stein Loss Function

open access: yesRevstat Statistical Journal, 2010
In this paper, we consider the problem of estimating the parameters of a subset selected from p (p ≥ 2) left-truncated Poisson distributions under Stein loss function. Two problems of estimations are considered; average worth and simultaneous estimation.
A. Shanubhogue, Riyadh R. Al-Mosawi
doaj   +1 more source

New Stochastic Restricted Biased Regression Estimators

open access: yesMathematics
In this paper, we propose three stochastic restricted biased estimators for the linear regression model. These new estimators generalize the least squares estimator, mixed estimator, and biased estimator. We derive the necessary and sufficient conditions
Issam Dawoud, Hussein Eledum
doaj   +1 more source

Modified Maximum Likelihood Estimation of the Inverse Weibull Model

open access: yesAxioms, 2023
The inverse Weibull model is a simple and flexible model used for survival analysis, reliability theory, and other scientific fields. The main problem in this context is the estimation of the model parameters.
Mohamed Kayid, Mashael A. Alshehri
doaj   +1 more source

Analyzing weak lensing of the cosmic microwave background using the likelihood function [PDF]

open access: yes, 2002
Future experiments will produce high-resolution temperature maps of the cosmic microwave background (CMB) and are expected to reveal the signature of gravitational lensing by intervening large-scale structures.
Hirata, Christopher M., Seljak, Uroš
core   +2 more sources

A new modified ridge-type estimator for the beta regression model: simulation and application

open access: yesAIMS Mathematics, 2022
The beta regression model has become a popular tool for assessing the relationships among chemical characteristics. In the BRM, when the explanatory variables are highly correlated, then the maximum likelihood estimator (MLE) does not provide reliable ...
Muhammad Nauman Akram   +3 more
doaj   +1 more source

A New Kibria-Lukman-Type Estimator for Poisson Regression Models

open access: yesActa Infologica
One of the most important models for the analysis of count data is the Poisson Regression Model (PRM). The parameter estimates of the PRM are obtained by the Maximum Likelihood Estimator (MLE).
Cemal Çiçek, Kadri Ulaş Akay
doaj   +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

The method of moments ratio estimator for the tail shape parameter [PDF]

open access: yes, 1996
The so-called Hill estimator for the shape parameter of the tail distribution is known to be downwardly biased. The Hill estimator is a moment estimator, based on the first conditional moment of the highest logarithmically transformed data.
Daníelsson, J. (Jón)   +1 more
core   +2 more sources

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