Logistic Regression, Stochastic Gradient, Regularization.
https://www.youtube.com/watch?v=3qzWeokRYTA&list=PLupD_xFct8mEYg5q8itrFDuDaWKDtjSj_&index=5 Distance of a point and a plane: https://www.youtube.com/watch?v=HNYjp4HP0T8&list=PLupD_xFct8mEYg5q8itrFDuDaWKDtjSj_&index=6 Logistic Regression intuition: