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A key strength of Proximal Policy Optimization (PPO) is its learned critic, which uses historical trajectories collected during reinforcement learning to estimate expected returns and reduce policy-gradient variance. However, we find that the critic is also a major source of instability in reinforcement learning for la...
It is argued that an agent system should maintain an explicit representation of how it fails, induced from its own behavior and reusable wherever failure feedback is needed, and AdaMAST builds this representation by converting a target system's traces into a compact, evidence-grounded failure taxonomy.
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