Description: Logistic regression with regularization is a machine learning technique that combines logistic regression, used for binary classification problems, with regularization methods to improve the model’s generalization. Basic logistic regression estimates the probability that an instance belongs to a specific class using a sigmoid function. However, in complex datasets or those with many features, it is common for the model to overfit the training data, a phenomenon known as overfitting. To mitigate this issue, regularization techniques such as L1 (Lasso) and L2 (Ridge) are incorporated, which penalize the magnitude of the model’s coefficients. This not only helps reduce the model’s variance but can also lead to automatic feature selection, eliminating those that do not provide significant value. Regularization allows the model to maintain its predictive capability on unseen data, which is crucial in real-world applications where accuracy is paramount. In summary, logistic regression with regularization is a powerful tool in the machine learning arsenal, providing a balance between model complexity and its ability to generalize to new data.