Riemannian Proximal Policy Optimization

Autor: Wang, Shijun, Zhu, Baocheng, Li, Chen, Wu, Mingzhe, Zhang, James, Chu, Wei, Qi, Yuan
Rok vydání: 2020
Předmět:
Druh dokumentu: Working Paper
Popis: In this paper, We propose a general Riemannian proximal optimization algorithm with guaranteed convergence to solve Markov decision process (MDP) problems. To model policy functions in MDP, we employ Gaussian mixture model (GMM) and formulate it as a nonconvex optimization problem in the Riemannian space of positive semidefinite matrices. For two given policy functions, we also provide its lower bound on policy improvement by using bounds derived from the Wasserstein distance of GMMs. Preliminary experiments show the efficacy of our proposed Riemannian proximal policy optimization algorithm.
Comment: 12 pages, 1 figures
Databáze: arXiv