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Algorithm Taxonomy

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Algorithm Taxonomy

Deep RL algorithms can be classified into a family tree based on their methods / functions they learn, such as the one shown below.
Source: Foundations of Deep Reinforcement Learning, Graesser & Keng.
Algorithms often extends an existing one by modifying or adding components. Most model-free algorithms are descended from SARSA and REINFORCE. The figure below shows some of the algorithms in SLM Lab, and their relationships.
Source: Foundations of Deep Reinforcement Learning, Graesser & Keng.
Naturally, implementations can be consistent with this theoretical taxonomy by using class inheritance and modular components. This is precisely what SLM Lab does.
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