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For questions related to the concept of return in reinforcement learning, which is defined as the future cumulative (discounted) reward or, in simple words, the reward in the long run.

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What is the difference between expected return and value function?

I've seen numerous mathematical explanations of reward, value functions $V(s)$, and return functions. The reward provides an immediate return for being in a specific state. … Is a value function a return function? Or are they different? …
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