AI Glossary
Reinforcement learning
Also called RL
What does “Reinforcement learning” mean?
Reinforcement learning: Teaching a system through trial and error: it takes actions, receives rewards or penalties, and gradually learns which choices lead to better outcomes. It is used in game-playing and robotics, and to refine how chat models respond after their initial training.

What is an example of “Reinforcement learning”?
DeepMind's AlphaGo used reinforcement learning, playing many games against itself to improve at Go.