Who Is the Agent Talking To? Participant-Aware Role Switching for Embodied Student-Support Dialogue
Iro Samuel · Filip Janik · Ewa Olton · Robert Smales · Harris Spratt · Shea Tait · et al.
RPO-PDT 是一个具身对话智能体（embodied conversational agent），能根据当前参与者调整对话角色：支持学生时担任个人发展导师（Personal Development Tutor, PDT），教师演练辅导策略时则扮演模拟学生。自愿的闭集参与者验证（closed-set participant verification）驱动一个置信度控制的角色管理器：稳定的已注册教师匹配激活学生角色，已注册学生与未匹配参与者使用默认 PDT 角色，不确定观测不触发切换。系统整合 Furhat 交互、Rasa 编排、机构检索、安全防护与基于 LLM 的生成。用户控制通过手动角色覆盖、基于同意的面部注册、临时交互标识符以及已注册档案的显式保留或删除来保障。演示在交互中同时展示角色切换行为与这些隐私控制。
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arXiv:2606.09255v2 Announce Type: replace Abstract: We present RPO-PDT, an embodied conversational agent that adapts its conversational role to the current participant. It acts as a Per- sonal Development Tutor (PDT) when supporting students and as a simulated student when faculty rehearse tutoring strategies. Voluntary closed-set participant verification informs a confidence- controlled role manager: stable enrolled-faculty matches activate the Student role, while enrolled students and unmatched partici- pants use the default PDT role and uncertain observations cause no transition. The system combines Furhat interaction, Rasa or- chestration, institutional retrieval, safeguarding, and LLM-based generation. User control is preserved through manual role override, consent-based facial enrolment, temporary interaction identifiers, and explicit retention or deletion of enrolled profiles. The demon- stration exposes both role-switching behaviour and these privacy controls in interaction.
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