Results 1 to 10 of about 25,397 (329)

Ridge regression estimator: combining unbiased and ordinary ridge regression methods of estimation [PDF]

open access: yesSurveys in Mathematics and its Applications, 2009
Statistical literature has several methods for coping with multicollinearity. This paper introduces a new shrinkage estimator, called modified unbiased ridge (MUR).
Sharad Damodar Gore, Feras Sh. M. Batah
doaj   +4 more sources

New ridge parameter estimators for the quasi-Poisson ridge regression model [PDF]

open access: goldScientific Reports
The quasi-Poisson regression model is used for count data and is preferred over the Poisson regression model in the case of over-dispersed count data.
Aamir Shahzad   +3 more
doaj   +4 more sources

A Poisson Ridge Regression Estimator [PDF]

open access: yesEconomic Modelling, 2011
The standard statistical method for analyzing count data is the Poisson regression model, which is usually estimated using maximum likelihood (ML). The ML method is very sensitive to multicollinearity. Therefore, we present a new Poisson ridge regression
Månsson, Kristofer, Shukur, Ghazi
core   +3 more sources

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   +4 more sources

Condition-index based new ridge regression estimator for linear regression model with multicollinearity

open access: goldKuwait Journal of Science, 2023
Ridge regression is employed to estimate the regression parameters while circumventing the multicollinearity among independent variables. The ridge parameter plays a vital role as it controls bias-variance tradeoff. Several methods for choosing the ridge
Irum Sajjad Dar   +3 more
doaj   +2 more sources

Two-Parameter Modified Ridge-Type M-Estimator for Linear Regression Model [PDF]

open access: goldThe Scientific World Journal, 2020
The general linear regression model has been one of the most frequently used models over the years, with the ordinary least squares estimator (OLS) used to estimate its parameter.
Adewale F. Lukman   +3 more
doaj   +2 more sources

Stochastic Restricted Biased Estimators in Misspecified Regression Model with Incomplete Prior Information

open access: yesJournal of Probability and Statistics, 2018
The analysis of misspecification was extended to the recently introduced stochastic restricted biased estimators when multicollinearity exists among the explanatory variables. The Stochastic Restricted Ridge Estimator (SRRE), Stochastic Restricted Almost
Manickavasagar Kayanan   +1 more
doaj   +3 more sources

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

open access: diamondIraqi 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   +3 more sources

A New Mixed Biased Estimator for Ill‐Conditioning Challenges in Linear Regression Model With Chemometrics Applications [PDF]

open access: yesAnalytical Science Advances
In linear regression models, the ordinary least squares (OLS) method is used to estimate the unknown regression coefficients. However, the OLS estimator may provide unreliable estimates in non‐orthogonal models.
Muhammad Amin   +3 more
doaj   +2 more sources

On the performance of some new ridge parameter estimators in the Poisson-inverse Gaussian ridge regression

open access: goldAlexandria Engineering Journal, 2023
The Poisson Inverse Gaussian Regression model (PIGRM) is used for modeling the count datasets to deal with the issue of over-dispersion. Generally, the maximum likelihood estimator (MLE) is used to estimate the PIGRM estimates.
Asia Batool   +2 more
doaj   +2 more sources

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