Reinforcement Learning
Reinforcement Learning (RL) is a machine learning paradigm where agents learn to make decisions through interaction with environments, receiving rewards or penalties. Key concepts include rewards, policies, and value functions essential for guiding the agent's behavior. Q-learning and deep Q-networks represent significant advancements in RL, enabling effective learning in complex tasks like robotics and gaming. Mastery of RL principles facilitates the development of autonomous systems that improve decision-making through experience.
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What we have learnt
- Reinforcement Learning is about learning to make decisions via interactions with environments and feedback in the form of rewards.
- Policies define the behavior of an agent, translating states into actions, while value functions assess the quality of states or actions.
- Q-learning and Deep Q-Networks are key algorithms that enhance RL applications, with implications in robotics and gaming.
Key Concepts
- -- Reinforcement Learning (RL)
- A type of machine learning where an agent learns to make decisions by receiving feedback in the form of rewards or penalties after actions taken in an environment.
- -- Reward
- A scalar signal received after taking an action in a given state, guiding an agent towards desired outcomes.
- -- Policy
- Defines how an agent behaves, mapping states to actions, which can be deterministic or stochastic.
- -- Value Function
- Estimates the value of being in a given state or taking an action in a state; includes state-value and action-value functions.
- -- QLearning
- A model-free algorithm that learns the optimal action-value function without requiring a model of the environment.
- -- Deep QNetworks (DQN)
- Combines Q-learning with deep neural networks to approximate the Q-function, enabling the handling of large state spaces.
Additional Learning Materials
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