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What is reinforcement learning in AI?

Reinforcement learning (RL) is a type of machine learning where an agent learns to make decisions by interacting with an environment. The agent takes actions, receives feedback in the form of rewards or penalties, and uses this feedback to improve its future decisions.

How does reinforcement learning work?

Reinforcement learning works by using a trial-and-error approach. The agent takes actions in the environment, observes the resulting state and reward, and updates its policy, which is a strategy for choosing actions. The goal is to learn a policy that maximizes the sum of rewards over time.

Reinforcement learning can be used to solve complex problems where the optimal solution is not known in advance and needs to be learned through interaction with the environment.

What are the applications and challenges of reinforcement learning?

Reinforcement learning has many applications, including game playing, robotics, resource management, and more. However, it also faces challenges. It requires a lot of data and computation, it can be difficult to specify the right reward function, and it can be sensitive to the choice of hyperparameters.

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