让自动驾驶车通过可信赖的信号引导人类司机减速,提升交通安全性与效率。
Trust-Aware Embodied Bayesian Persuasion for Mixed-Autonomy
- 用贝叶斯劝说模型设计可解释的车辆交互信号,避免策略性操纵。
- 证明了维持影响所需的最低信任阈值,并推导出最优动作幅度为前向轻推。
- 在混合交通仿真中验证,能零碰撞地引导人类驾驶,优于不考虑信任或无沟通的基线。
自动驾驶车辆(AV)与人类驾驶车辆(HV)之间的安全高效交互是未来交通系统的关键挑战。传统博弈论模型虽能描述AV对HV的影响,但常因长期影响衰减和被视为操纵而削弱人类信任,反而导致人类驾驶行为更冒险。本文提出可信感知的具身贝叶斯劝说框架(TA-EBP),实现三方面贡献:首先,将贝叶斯劝说用于交通交叉口通信,提供比传统博弈模型更透明的替代方案;其次,引入信任参数,推导出维持影响力的最小信任水平;第三,将抽象信号转化为连续且物理可实现的动作空间,推导出最优信号强度,表现为AV的前向轻推。我们在混合自主交通仿真中验证该框架,结果表明TA-EBP成功促使HV更谨慎驾驶,实现零碰撞,同时改善交通流,优于忽略信任或缺乏通信的基线方法。本工作为人类-机器人交互中的影响提供了透明、非策略性框架,兼顾安全与效率。
原文摘要 · Abstract (English)
Safe and efficient interaction between autonomous vehicles (AVs) and human-driven vehicles (HVs) is a critical challenge for future transportation systems. While game-theoretic models capture how AVs influence HVs, they often suffer from a long-term decay of influence and can be perceived as manipulative, eroding the human's trust. This can paradoxically lead to riskier human driving behavior over repeated interactions. In this paper, we address this challenge by proposing the Trust-Aware Embodied Bayesian Persuasion (TA-EBP) framework. Our work makes three key contributions: First, we apply Bayesian persuasion to model communication at traffic intersections, offering a transparent alternative to traditional game-theoretic models. Second, we introduce a trust parameter to the persuasion framework, deriving a theorem for the minimum trust level required for influence. Finally, we ground the abstract signals of Bayesian persuasion theory into a continuous, physically meaningful action space, deriving a second theorem for the optimal signal magnitude, realized as an AV's forward nudge. Additionally, we validate our framework in a mixed-autonomy traffic simulation, demonstrating that TA-EBP successfully persuades HVs to drive more cautiously, eliminating collisions and improving traffic flow compared to baselines that either ignore trust or lack communication. Our work provides a transparent and non-strategic framework for influence in human-robot interaction, enhancing both safety and efficiency.
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