Speaker Hand-Offs in Collaborative Human-Agent Oral Presentations
Speaker Hand-Offs in Collaborative Human-Agent Oral Presentations
复制标题
人工代理口头演示中的演讲者交接
DOI：
10.1145/3267851.3267904
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
T. Bickmore
中科院分区：
文献类型：
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作者：
Prasanth Murali;Lazlo Ring;Ha Trinh;Reza Asadi;T. Bickmore
先前对公共演讲行为的研究表明，公共演讲焦虑随着共同演讲者人数的增加而单调减少，随着听众人数的增加而增加。然而，演讲者的“交接”行为——用于从一个演讲者转移到另一个演讲者的语言和非语言线索——及其对演讲者焦虑和演讲质量的影响尚未得到系统的研究。在这项工作中，我们报告了在人类共同演讲中使用的发言者移交行为的两项实证研究。我们发现，在准备和排练的演讲中，用于交接的线索与面对面对话中观察到的线索有很大不同。我们描述了两个系统，它们利用这些语言和非语言线索的自动识别，在与真人大小的虚拟代理共同演示期间驱动交接。
Prior studies of public speaking behavior have demonstrated that public speaking anxiety monotonically decreases with the number of co-presenters giving an oral presentation and increases with the size of the audience. However, speaker "hand off" behavior---the verbal and nonverbal cues used to transition from one speaker to another---and its effect on speaker anxiety and presentation quality has not been systematically studied. In this work we report on two empirical studies of speaker hand-off behavior used during human co-presentations. We find that the cues used for hand-offs during prepared and rehearsed presentations differ significantly from the cues observed in face-to-face conversational turn-taking. We describe two systems that leverage automatic recognition of these verbal and nonverbal cues to drive hand-offs during co-presentations with a life-sized virtual agent.