Speaker Hand-Offs In Collaborative Human-Agent Oral Presentations
18TH ACM INTERNATIONAL CONFERENCE ON INTELLIGENT VIRTUAL AGENTS (IVA'18)(2018)
摘要
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.
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关键词
Human-centered computing, Natural language interfaces, Turn-taking
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