Machine Learning, Deep Learning, Artificial Intelligence, NLP, AI.
summation? To do this, we multiply and divide by 𝜋(a | S_t, 𝜃). 𝜋(a | S_t, 𝜃) is the probability distribution over the actions at state S_t. So again, the summation looks like an expectation and we can reduce it to: That’s it! We can estimate this form of the gradient using just the one sample