<p>Reinforcement learning (RL) faces significant challenges when deployed in real-world scenarios with potential adversarial perturbations. The Intrinsic State-Adversarial Markov Decision Process (ISA-MDP) framework considers state perturbation to enhance policy robustness while preserving its natural performance. Building upon ISA-MDP, this paper proposes the first policy optimization framework and develops two distinct algorithms for different scenarios: Deterministic Adversarially Robust Policy Gradient (DARPG) and stochastic adversarially robust policy optimization, which effectively solve our formulated optimization problem. Furthermore, we provide a convergence analysis for both algorithms under specified theoretical assumptions.</p>

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ARPO: Optimal Robust Policy Optimization Models from Intrinsic State-Adversarial Markov Decision Process

  • Jia-Yu Lv,
  • Hao-Ran Li,
  • Cong-Ying Han,
  • Tian-De Guo

摘要

Reinforcement learning (RL) faces significant challenges when deployed in real-world scenarios with potential adversarial perturbations. The Intrinsic State-Adversarial Markov Decision Process (ISA-MDP) framework considers state perturbation to enhance policy robustness while preserving its natural performance. Building upon ISA-MDP, this paper proposes the first policy optimization framework and develops two distinct algorithms for different scenarios: Deterministic Adversarially Robust Policy Gradient (DARPG) and stochastic adversarially robust policy optimization, which effectively solve our formulated optimization problem. Furthermore, we provide a convergence analysis for both algorithms under specified theoretical assumptions.