Results 31 to 40 of about 43,564 (255)

The efficiency of modified jackknife and ridge type regression estimators: a comparison [PDF]

open access: yesSurveys in Mathematics and its Applications, 2008
A common problem in multiple regression models is multicollinearity, which produces undesirable effects on the least squares estimator. To circumvent this problem, two well known estimation procedures are often suggested in the literature.
Sharad Damodar Gore   +2 more
doaj  

To tune or not to tune, a case study of ridge logistic regression in small or sparse datasets

open access: yesBMC Medical Research Methodology, 2021
Background For finite samples with binary outcomes penalized logistic regression such as ridge logistic regression has the potential of achieving smaller mean squared errors (MSE) of coefficients and predictions than maximum likelihood estimation.
Hana Šinkovec   +3 more
doaj   +1 more source

Metode Regresi Ridge Untuk Mengatasi Kasus Multikolinear

open access: yesComTech, 2011
Multicolinear is a case that occurs in multi-linear regression analysis. Using multicolinear, it will be difficult to separate the influence of each independent variable towards the response variables.
Margaretha Ohyver
doaj   +1 more source

Continuum Regression and Ridge Regression

open access: yesJournal of the Royal Statistical Society Series B: Statistical Methodology, 1993
SUMMARY We demonstrate the close relationship between first-factor continuum regression and standard ridge regression. The difference is that continuum regression inserts a scalar compensation factor for that part of the shrinkage in ridge regression that has no connection with tendencies towards collinearity.
openaire   +2 more sources

Ridge Regression and PLS Regression

open access: yesAmerican Review of Mathematics and Statistics, 2023
A brief review of Ridge Regression (RR) and PLS Regression (PLS) is presented. Process and Spectral data are used in the analysis. Both are low-rank data, which is common in chemometric work. The Ridge constant k is determined by minimizing the size of the residuals in Leave-one-out RR.
openaire   +1 more source

Responsibility division method of harmonic sources in coal mine power system

open access: yesGong-kuang zidonghua, 2018
In view of the problem of collinearity of harmonic emission level evaluating method of coal mine power system based on multivariate linear regression, which leaded to the problem that evaluation result was greatly affected by abnormal value problem ...
GAO Yun, SU Jingwei
doaj   +1 more source

Study of Some Kinds of Ridge Regression Estimators in Linear Regression Model

open access: yesTikrit Journal of Pure Science, 2020
In linear regression model, the biased estimation is one of the most commonly used methods to reduce the effect of the multicollinearity. In this paper, a simulation study is performed to compare the relative efficiency of some kinds of biased ...
Mustafa Nadhim Lattef, Mustafa I ALheety
doaj   +1 more source

Robust weighted ridge regression based on S – estimator

open access: yesAfrican Scientific Reports, 2023
Ordinary least squares (OLS) estimator performance is seriously threatened by correlated regressors often called multicollinearity. Multicollinearity is a situation when there is strong relationship between any two exogenous variables.
Taiwo Stephen Fayose   +3 more
doaj   +1 more source

Enhanced ridge regressions

open access: yesMathematical and Computer Modelling, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

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   +1 more source

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