Ridge Robust Regression Improves Health Services in Central Java 2017.
The researchers used a method called Ridge Robust-MM Regression to handle problems of multicollinearity and outliers in a study on factors influencing AKB in Central Java in 2017. They found that this method improved parameter estimation and showed that most predictor variables had a significant effect on AKB. The predictor variables influenced AKB by 47.68%, with a mean squared error value of 0.01538.