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Research Article Open access CC BY 4.0

Ridge Estimator in Logistic Regression under Stochastic Linear Restrictions

Nagarajah Varathan, Pushpakanthie Wijekoon

Journal of Advances in Mathematics and Computer Science · pp. 1–14 · Published 12 Mar 2016

10.9734/BJMCS/2016/24585

Abstract

In the logistic regression, it is known that multicollinearity affects the variance of Maximum Likelihood Estimator (MLE). To overcome this issue, several researchers proposed alternative estimators when exact linear restrictions are available in addition to sample model. In this paper, we propose a new estimator called Stochastic Restricted Ridge Maximum Likelihood Estimator (SRRMLE) for the logistic regression model when the linear restrictions are stochastic. Moreover, the conditions for superiority of SRRMLE over some existing estimators are derived with respect to Mean Square Error (MSE) criterion. Finally, a Monte Carlo simulation is conducted for comparing the performances of the MLE, Ridge Type Logistic Estimator (LRE) and Stochastic Restricted Maximum Likelihood Estimator (SRMLE) for the logistic regression model by using Scalar Mean Squared Error (SMSE).

Logistic regression multicollinearity stochastic restricted ridge maximum likelihood Estimator mean square error scalar mean squared error

References (14)

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Cited by 28

On the stochastic restricted Liu-type maximum likelihood estimator in logistic regression model

Ji-Bo Wu, Yasin Asar · Communications Faculty Of Science University of Ankara Series A1Mathematics and Statistics · 2017

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