We minimize Mean Squared Error (MSE):
Regression is a supervised learning technique used to predict continuous output variables. In linear regression, we assume a linear relationship between input features ( X ) and output ( y ): machine learning by sridhar pdf
I notice you're asking about — but there's no widely known ML textbook by a single author "Sridhar" in standard academic or technical publishing (e.g., from Pearson, Wiley, O'Reilly, MIT Press, etc.). We minimize Mean Squared Error (MSE): Regression is