4.1 Linear and Polynomial Regression
Linear regression is the simplest and most fundamental form of regression analysis in machine learning. This technique models the relationship between one or more input features (independent variables) and a continuous target variable (dependent variable) by fitting a straight line through the data points. The primary goal of linear regression is to find the best-fitting line that minimizes the overall prediction error.
In its simplest form, linear regression assumes a linear relationship between the input and output variables. This means that changes in the input variables result in proportional changes in the output variable. The model learns from labeled training data to determine the optimal parameters ...