ACTER: Diverse and Actionable Counterfactual Sequences for Explaining and Diagnosing RL Policies

Understanding how failure occurs and how it can be prevented in reinforcement learning (RL) is necessary to enable debugging, maintain user trust, and develop personalized policies. Counterfactual reasoning has often been used to assign blame and understand failure by searching for the closest possible world in which the failure is avoided. However, current counterfactual state explanations in RL can only explain an outcome using just the current state features and offer no actionable recourse on how a negative outcome could …

counterfactual cs.ai cs.lg debugging diverse failure personalized reasoning reinforcement reinforcement learning searching trust understanding user trust world