Learning Agent

Performance element

Takes in percepts and decides on actions. What is meant by “agent” until now.

Critic

Evaluates how the agent is performing and gives feedback.

Learning element

Takes feedback from the critic and modifies the performance element to do better in the future.

Problem generator

Suggests exploratory actions leading to new and informative experiences. These actions may be suboptimal, but will lead to the discovery of better actions. Learn through mistakes.