Classification

On basis of the nature of the learning signal or feedback available to a learning system

• Supervised learning
• Unsupervised learning
• Semi-supervised learning
• Reinforcement learning

On the basis of output desired from a machine learned system

• Classification
• Regression
• Clustering
• Density estimation
• Dimensionality reduction

Terminologies of Machine Learning

• Model
• Feature
• Target (Label)
• Training
• Prediction