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AI Technique

Reinforcement Learning

What is Reinforcement Learning?

Reinforcement Learning is a type of AI training where an agent learns by interacting with its environment and receiving rewards or penalties for its actions. The AI learns through trial and error to maximize its cumulative rewards over time. This approach is particularly effective for teaching AI systems to make sequences of decisions in complex environments.

Technical Details

Common RL algorithms include Q-learning, policy gradients, and deep reinforcement learning using neural networks. The mathematical framework typically involves Markov Decision Processes (MDPs) with states, actions, rewards, and policies.

Real-World Example

ChatGPT was trained using reinforcement learning from human feedback (RLHF), where human trainers provided feedback to help the model learn which responses were most helpful and appropriate, improving its conversational abilities over time.

AI Tools That Use Reinforcement Learning

Related Terms

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