Types of Machine Learning - Reinforcement Learning
- Paulina Niewińska
- May 21
- 1 min read

Reinforcement Learning (RL) stands apart from both Supervised and Unsupervised Learning. It’s a unique approach where an agent learns by interacting with its environment, making decisions that maximize rewards over time.
🔍 How It Works:
In RL, the agent takes actions in an environment to achieve a goal. Each action results in a reward (positive or negative), and the agent’s objective is to learn a policy—a strategy for choosing actions that maximize cumulative rewards. Think of it like training a dog: you reward good behavior and discourage bad behavior, helping the dog learn the desired actions.
🔍 Real-World Applications:
Reinforcement Learning is behind some of the most advanced AI systems today. It’s used in autonomous vehicles, where the car learns to navigate safely by maximizing its reward (e.g., staying on the road, avoiding collisions). It’s also the technology behind many game-playing AIs, like those that have mastered chess or Go, by learning the best strategies through trial and error.
Reinforcement Learning is dynamic and complex, but incredibly powerful. In the next post, we’ll shift focus to the essential role of data in Machine Learning.
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