Machine Learning: From Fundamentals to Real-World Applications Introduction Machine learning (ML) has transformed how we approach problem-solving across industries, from healthcare to finance. This guide explores core ML concepts based on Princeton University’s COS 324 course notes, covering supervised learning, unsupervised learning, deep learning, and reinforcement learning. Whether you’re a student or a professional, understanding these fundamentals will help you leverage data effectively. 1. Supervised Learning: Learning from Labeled Data 1.1 Linear Regression: Predicting Continuous Values What it is: A method to model the relationship between variables using a straight line. Equation: y = a₀ + a₁x₁ + a₂x₂ + …