Ridge Regression
Ridge regression is a type of regularized regression model. This means it is a variation of the standard linear regression model that includes a regularized term in the cost function. The purpose of this is to prevent Overfitting. Ridge Regression adds an L2 regularization term to the linear equation. That’s why it is also known as L2 Regularization or L2 Norm.
The main aim of Ridge Regression is to reduce Overfitting.
Graphical Intuition of Ridge Regression
Let’s say we built a linear regression model with the best-fit line passing through all the train data points.