A Convex Combination Method of Subset Selection Criterion in a Linear Regression

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SATISH BHAT

A Convex Combination Method of Subset Selection Criterion in a Linear Regression

Authors: SATISH BHAT

Unique Paper ID: 166969
Volume: 11
Issue: 3
PageNo: 113-118

Keywords: Multiple linear regression multicollinearity outliers subset selection ridge estimator.

Abstract:
In multiple linear regression analysis, problem multicollinearity and outliers are the two serious issues. Due to these problems, the ordinary least squares(OLS) method does not yield good estimates to the regression parameters. When such a situation arise, there are various methods to estimate the optimum estimates to the regression parameters and one such is called subset selection methods. Several authors have been suggested various modes of subset selection methods based on OLS methods, which are sensitive to multicollinearity, heteroscadesticity, non-normal error distribution, etc. In order to overcome the problem of these factors, here we suggest a new method of obtaining the good estimates to the regression parameters by selecting a good subset model, and we called it as Weighted Method of Subset Selection Criteria. It is obtained by shrinking the GSp and MGSp criterions using convex combination concepts. The performance of the suggested criteria is evaluated empirically and compared with some of the existing methods of subset selection criterions. Empirical results indicate that the proposed criteria performs better in presence of both multicollinearity and outliers.

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Cite This Article

ISSN: 2349-6002
Volume: 11
Issue: 3
PageNo: 113-118

A Convex Combination Method of Subset Selection Criterion in a Linear Regression

Available:https://ijirt.org/article?manuscript=166969

Impact Factor
8.01 (Year 2024)

UGC Approved
Journal no 47859

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