Teaching an AI to walk
Full video: • Teaching an AI to walk
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#programming #ai #reinforcementlearning
Reinforcement Learning (RL) is a subfield of machine learning and artificial intelligence that focuses on training algorithms or agents to make optimal decisions in dynamic environments. It is inspired by the principles of learning and decision-making in humans and animals, and revolves around the core concepts of states, actions, rewards, and policies.
In reinforcement learning, an agent interacts with an environment by taking actions, receiving feedback in the form of rewards or penalties, and updating its knowledge to improve future decision-making. The goal of the agent is to maximize the cumulative rewards over time, also known as the return, by learning an optimal policy—a mapping of states to actions that yields the highest possible rewards.
The learning process typically involves exploration and exploitation. Exploration is the phase where the agent tries out various actions to gather information about the environment and potential rewards. Exploitation, on the other hand, involves using the acquired knowledge to choose actions that maximize the expected rewards.
Reinforcement learning algorithms can be categorized into model-based and model-free methods. Model-based methods rely on learning an explicit model of the environment, which is then used to derive optimal actions. Model-free methods, such as Q-learning and policy gradient algorithms, directly learn the optimal policy or action-values without the need for an explicit model.
Reinforcement learning has been successfully applied to various domains, including robotics, game playing, recommendation systems, natural language processing, and autonomous vehicles. Its ability to learn from interactions with the environment and to adapt to changing circumstances makes it a promising approach for developing intelligent systems that can tackle complex, real-world problems.
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