Deep Q-Network

Fact

A reinforcement learning method with a neural network for scoring actions.

In Plain Words

DQN is like a tiny coach inside a game controller. It gives each button a secret score, then yells, “Stop hugging the wall.”

It learns those scores by trying moves and seeing what happens. You meet it in games and control tasks.

Related Concepts

• Q-Learning
• Deep Reinforcement Learning
• Bellman Equation
• Temporal-Difference Learning

Q-Learning
DQN is Q-Learning with a neural network instead of a table.

Deep RL
DQN is a classic early Deep RL method.

Bellman Equation
DQN uses the Bellman Equation to build its value update target.

TD Learning
DQN uses TD Learning, so it updates scores while it plays.