Learning Control Policies for Region Stabilization in Stochastic Systems

Matin Ansaripour, Mathias Lechner, Đorđe Žikelić, Krishnendu Chatterjee, Thomas A Henzinger

Keywords: Stability, learning for control, martingale, verification

TL;DR: We learn policies and certificates for proving region stabilization in control systems

Abstract: We consider the problem of learning control policies in stochastic systems which guarantee that the system stabilizes within some specified stabilization region with probability 1. Our approach is based on the novel notion of stabilizing ranking supermartingales (sRSMs) that we introduce in this work. Our sRSMs overcome the limitation of methods proposed in previous works whose applicability is restricted to systems in which the stabilizing region cannot be left once entered under any control policy. We present a learning procedure that learns a control policy together with an sRSM that formally certifies probability 1 stability, both learned as neural networks. Our experimental evaluation shows that our learning procedure can successfully learn provably stabilizing policies in practice.

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