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Can we also estimate $V_{\pi}$ with SARSA?

What you suggest will work, the main restriction is needing to know $\pi$ fully in order to perform the conversion. If you know that you are going to be estimating $V_{\pi}$ from the start, and have a ...
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How is policy iteration capable of improving on a deterministic policy?

These statements are not true for policy iteration and dynamic programming: Since the policy is stochastic and the initial state is the same, we'll always take the same path and evaluate the same ...
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