Results 241 to 250 of about 2,495,910 (283)

Liu-Type Multinomial Logistic Estimator

Sankhya B, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mohamed R Abonazel
exaly   +2 more sources

Liu-type estimator for the gamma regression model

Communications in Statistics - Simulation and Computation, 2018
In this paper, we propose a new biased estimator called Liu-type estimator in gamma regression models in the presence of collinearity.
Zakariya Yahya Algamal, Yasin Asar
openaire   +3 more sources

Robust Liu estimator for regression based on an M-estimator

Journal of Applied Statistics, 2000
Consider the regression model y = beta 0 1 + Xbeta + epsilon. Recently, the Liu estimator, which is an alternative biased estimator beta L (d) = (X'X + I) -1 (X'X + dI)beta OLS , where ...
Arslan O., Billor N.
openaire   +2 more sources

Evaluation of the predictive performance of the Liu type estimator

Communications in Statistics - Simulation and Computation, 2016
Multiple linear regression models are frequently used in predicting (forecasting) unknown values of the response variable y. In this case, a regression model ability to produce an adequate prediction equation is of prime importance. This paper discusses the predictive performance of the Liu estimator compared to ordinary least squares, as well as to ...
Dawoud I., Kaçiranlar S.
openaire   +4 more sources

Evaluation of the Predictive Performance of the Liu Estimator

Communications in Statistics - Theory and Methods, 2013
Multiple linear regression models are frequently used in predicting (forecasting) unknown values of the response variable y. In this case, a regression model ability to produce an adequate prediction equation is of prime importance. This paper discusses the predictive performance of the Liu estimator compared to ordinary least squares, as well as to ...
Özbey F., Kaçiranlar S.
openaire   +3 more sources

On the Stein-Type Liu Estimator and Positive-Rule Stein-Type Liu Estimator in Multiple Linear Regression Models

Communications in Statistics - Theory and Methods, 2012
In this article, the Stein-type Liu estimator and positive-rule Stein-type Liu estimator are constructed for the parameter vector in a multiple linear model under a multicollinearity situation when it is suspected that the regression coefficients may be restricted to a subspace.
Hu Yang, Jianwen Xu
exaly   +2 more sources

More on the restricted Liu estimator in the logistic regression model

Communications in Statistics - Simulation and Computation, 2015
ABSTRACTSiray et al. proposed a restricted Liu estimator to overcome multicollinearity in the logistic regression model. They also used a Monte Carlo simulation to study the properties of the restricted Liu estimator. However, they did not present the theoretical result about the mean squared error properties of the restricted estimator compared to MLE,
Jibo Wu, Yasin Asar
openaire   +3 more sources

Liu-type estimator in semiparametric regression models

Journal of Statistical Computation and Simulation, 2010
In this paper, we introduced a Liu-type estimator for the vector of parameters in a semiparametric regression model. We also obtained the semiparametric restricted Liu-type estimator for the parametric component in a semiparametric regression model.
Esra Akdeniz Duran
exaly   +3 more sources

Robust Liu‐type estimator based on GM estimator

Statistica Neerlandica, 2023
Ordinary Least Squares Estimator (OLSE) is widely used to estimate parameters in regression analysis. In practice, the assumptions of regression analysis are often not met. The most common problems that break these assumptions are outliers and multicollinearity problems. As a result of these problems, OLSE loses efficiency.
Melike Işılar, Y. Murat Bulut
openaire   +3 more sources

Applications of resampling methods in multivariate Liu estimator

Computational Statistics, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Shima Pirmohammadi, Hamid Bidram
openaire   +3 more sources