Results 11 to 20 of about 2,638,357 (294)

A stochastic restricted ridge regression estimator

open access: yesJournal of Multivariate Analysis, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Özkale M.R.
openaire   +2 more sources

Improving generalized ridge estimator for the gamma regression model. [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية
It has been consistently proven that the ridge estimator is an effective shrinking strategy for reducing the effects of multicollinearity. An effective model to use when the response variable is positively skewed is the Gamma Regression Model (GRM ...
AVAN Al-Saffar, Zakaria Y. Algamal
doaj   +2 more sources

Modified Ridge Estimator for Poisson Regression

open access: yesCumhuriyet Science Journal
Poisson regression is a statistical model used to model the relationship between a count-valued-dependent variable and one or more independent variables. A frequently encountered problem when modeling such relationships is multicollinearity, which occurs
Shuaib Mursal Ibrahim, Aydın Karakoca
doaj   +2 more sources

Performance of a new ridge regression estimator [PDF]

open access: yesJournal of the Association of Arab Universities for Basic and Applied Sciences, 2010
AbstractRidge regression estimator has been introduced as an alternative to the ordinary least squares estimator (OLS) in the presence of multicollinearity. Several studies concerning ridge regression have dealt with the choice of the ridge parameter. Many algorithms for the ridge parameter have been proposed in the statistical literature.
Al-Hassan, Yazid M.,   +2 more
openaire   +2 more sources

Robust modified jackknife ridge estimator for the Poisson regression model with multicollinearity and outliers

open access: yesScientific African, 2022
The parameters in the Poisson regression model are usually estimated using the maximum likelihood estimator (MLE). MLE suffers a breakdown when there is either multicollinearity or outliers in the Poisson regression model.
Kingsley C Arum   +2 more
doaj   +1 more source

Modified Jackknifed Ridge Estimator in Bell Regression Model: Theory, Simulation and Applications

open access: yesIraqi Journal for Computer Science and Mathematics, 2023
Regression models explore the relationship between the response variable and one or more explanatory variables. It becomes practically challenging in real-life applications to model this relationship when the explanatory variables are linearly dependent.
Zakariya Algamal   +3 more
doaj   +1 more source

Predictive efficiency of ridge regression estimator [PDF]

open access: yesYugoslav Journal of Operations Research, 2017
In this article we have considered the problem of prediction within and outside the sample for actual and average values of the study variables in case of ordinary least squares and ridge regression estimators.
Tiwari Manoj, Sharma Amit
doaj   +1 more source

Ridge regression and its applications in genetic studies.

open access: yesPLoS ONE, 2021
With the advancement of technology, analysis of large-scale data of gene expression is feasible and has become very popular in the era of machine learning. This paper develops an improved ridge approach for the genome regression modeling.
M Arashi   +3 more
doaj   +1 more source

Superiority of the MCRR Estimator Over Some Estimators In A Linear Model [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2011
Modified (r, k) class ridge regression (MCRR) which includes unbiased ridge regression (URR), (r, k) class, principal components regression (PCR) and the ordinary least squares (OLS) estimators is proposed in regression analysis, to overcome the problem ...
Feras Sh. M. Batah
doaj   +1 more source

Correlation Based Ridge Parameters in Ridge Regression with Heteroscedastic Errors and Outliers [PDF]

open access: yesJournal of Statistical Theory and Applications (JSTA), 2015
This paper introduces some new estimators for estimating ridge parameter, based on correlation between response and regressor variables for ridge regression analysis.
A.V. Dorugade
doaj   +1 more source

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