PCA: https://www.cs.princeton.edu/picasso/mats/PCA-Tutorial-Intuition_jp.pdf
KMeans: https://youtu.be/qg_M37WGKG8
KNN: https://youtu.be/PNglugooJUQ
Ordinary Least Squared Method (OLS)
Stocastic Gradient Descent (SGD)
Linear Regression: https://towardsdatascience.com/linear-regression-detailed-view-ea73175f6e86
Logistic Regression: https://www.youtube.com/watch?v=yIYKR4sgzI8
Artificial Neural Network (ANN)
Radial Basis Function (RBF)