What are the main types of machine learning algorithms?

Machine learning algorithms are categorized into three main types based on learning approach and problem structure.\n\n• Supervised: Linear regression, SVM, Random Forest, Neural Networks\n• Unsupervised: K-means, DBSCAN, PCA, Autoencoders\n• Reinforcement: Q-learning, Policy Gradient, Actor-Critic\n\nEach type addresses different problem domains. Choose supervised for prediction tasks, unsupervised for pattern discovery, and reinforcement for sequential decision-making scenarios.