Stochastic Restricted Maximum Likelihood Estimator in Logistic Regression Model

• 作者: Pushpakanthie Wijekoon Varathan Nagarajah
• 来源期刊: 统计学期刊(英文)
• 学科: 数学
• 关键词: Logistic Regression MULTICOLLINEARITY Stochastic RESTRICTED MAXIMUM LIKELIHOOD ESTIMATOR SCALAR Mean Squared Error
• 年，卷（期）: 2015,（7）
• 页码范围: 837-851
• 页数: 15页
• 分类号: O1

摘要

In the presence of multicollinearity in logistic regression, the variance of the Maximum Likelihood Estimator (MLE) becomes inflated. Siray et al. (2015) [1] proposed a restricted Liu estimator in logistic regression model with exact linear restrictions. However, there are some situations, where the linear restrictions are stochastic. In this paper, we propose a Stochastic Restricted Maximum Likelihood Estimator (SRMLE) for the logistic regression model with stochastic linear restrictions to overcome this issue. Moreover, a Monte Carlo simulation is conducted for comparing the performances of the MLE, Restricted Maximum Likelihood Estimator (RMLE), Ridge Type Logistic Estimator(LRE), Liu Type Logistic Estimator(LLE), and SRMLE for the logistic regression model by using Scalar Mean Squared Error (SMSE).