Application of LASSO and its extended method in variable selection of regression analysis.
10.3760/cma.j.cn112150-20220117-00063
- Author:
Li Jing XI
1
;
Zhao Yan GUO
1
;
Xue Ke YANG
1
;
Zhi Guang PING
1
Author Information
1. College of Public Health, Zhengzhou University, Zhengzhou 450001, China.
- Publication Type:Journal Article
- MeSH:
Humans;
Regression Analysis
- From:
Chinese Journal of Preventive Medicine
2023;57(1):107-111
- CountryChina
- Language:Chinese
-
Abstract:
Multicollinearity is an important issue affecting the results of regression analysis. LASSO developed in recent years has great advantages in selecting explanatory variables, processing high-dimensional data, and solving multicollinearity problems. This method adds a penalty term to the model estimation, which can compress the regression coefficients of some unnecessary variables to zero and then remove them from the model to achieve the purpose of variable screening. This paper focuses on the LASSO method and compares it with optimal subsets, ridge regression, adaptive LASSO, and elastic net results. It is found that both LASSO and adaptive LASSO have good performance in solving independent variable multicollinearity problems and enhancing model interpretation and prediction accuracy.
