arXiv:2409.18545cs.ROcs.AI2024-09被引 2

让机器人预测人类信念,实现人机协作中的智能沟通时机选择。

An Epistemic Human-Aware Task Planner which Anticipates Human Beliefs and Decisions

  • 基于视角推理与动态信念建模,规划人机共享任务时的行动策略。
  • 在双场景实验中,有效识别人类不可控行为并预判其认知状态。
  • 适合需要高自主性人机协作的场景,如医疗或工业辅助系统。

我们提出了一种扩展版的人类感知任务规划框架,适用于存在间歇性共享执行体验及人类与机器人间显著信念差异的场景,尤其因人类行为不可控所致。目标是构建一种能考虑不可控人类行为的机器人策略,从而在非共享执行期间(例如人类短暂离开环境完成子任务)预测可能取得的进展。该预测从人类视角出发,假设人类拥有对机器人的估计模型。为此,我们设计了一种新型规划框架,并基于AND-OR搜索构建求解器,融合知识推理,包括视角切换下的情境评估。该方法动态建模潜在进展的扩展与收缩,精确追踪何时(以及何时不)代理共享执行经验。规划器系统性评估情境,排除人类认为不可能的世界。整体上,新求解器可估算人类与机器人在不同行动路径上的信念差异,实现机器人在恰当时刻进行沟通——即告知、回应询问,或推迟本体行动直至执行经验可共享。两个领域(一个全新,一个改造)的初步实验验证了该框架的有效性。

原文摘要 · Abstract (English)

We present a substantial extension of our Human-Aware Task Planning framework, tailored for scenarios with intermittent shared execution experiences and significant belief divergence between humans and robots, particularly due to the uncontrollable nature of humans. Our objective is to build a robot policy that accounts for uncontrollable human behaviors, thus enabling the anticipation of possible advancements achieved by the robot when the execution is not shared, e.g. when humans are briefly absent from the shared environment to complete a subtask. But, this anticipation is considered from the perspective of humans who have access to an estimated model for the robot. To this end, we propose a novel planning framework and build a solver based on AND-OR search, which integrates knowledge reasoning, including situation assessment by perspective taking. Our approach dynamically models and manages the expansion and contraction of potential advances while precisely keeping track of when (and when not) agents share the task execution experience. The planner systematically assesses the situation and ignores worlds that it has reason to think are impossible for humans. Overall, our new solver can estimate the distinct beliefs of the human and the robot along potential courses of action, enabling the synthesis of plans where the robot selects the right moment for communication, i.e. informing, or replying to an inquiry, or defers ontic actions until the execution experiences can be shared. Preliminary experiments in two domains, one novel and one adapted, demonstrate the effectiveness of the framework.

人机协作信念建模任务规划智能决策

Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。