Explain what is meant by Reinforcement Learning in relation to Artificial Intelligence.

Mark scheme

Marking points from the official mark scheme (May/June 2024). The mark or mark type is shown in brackets.

1. [3] One mark per mark point (Max 3)
2. [3] MP1 Reinforcement learning is a machine learning technique based on feedback / rewards / punishment.
3. [3] MP2 ... in which an agent learns to behave in an environment by performing the actions and seeing the results of the actions.
4. [3] MP3 ... for each good action, the agent gets positive feedback / reward and each bad action receives negative feedback / punishment.
5. [3] MP4 The agent learns automatically using feedback without any labelled data / specific instructions.
6. [3] MP5 Adjust node weightings to achieve the correct outcome. // Using feedback to improve its performance at accomplishing similar tasks.