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Weak Convergence Analysis of Online Neural Actor-Critic Algorithms
March 26, 2024, 4:42 a.m. | Samuel Chun-Hei Lam, Justin Sirignano, Ziheng Wang
cs.LG updates on arXiv.org arxiv.org
Abstract: We prove that a single-layer neural network trained with the online actor critic algorithm converges in distribution to a random ordinary differential equation (ODE) as the number of hidden units and the number of training steps $\rightarrow \infty$. In the online actor-critic algorithm, the distribution of the data samples dynamically changes as the model is updated, which is a key challenge for any convergence analysis. We establish the geometric ergodicity of the data samples under …
abstract actor actor-critic algorithm algorithms analysis arxiv convergence cs.lg differential differential equation distribution equation hidden layer math.oc math.pr network neural network ordinary prove random stat.ml training type units
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