让机器人主动说明能力，对话更自然流畅。
What Can You Say to a Robot? Capability Communication Leads to More Natural Conversations
- 机器人主动或被动说明自身能力，影响用户交互方式。
- 主动说明时用户满意度更高，行为更像自然对话。
- 适合社交机器人、人机交互设计者参考。
当人类与机器人在现实场景中互动时，往往不清楚机器人的能力范围。遇到误解或问题时，机器人通常仅道歉后继续，未主动澄清。本研究通过120名参与者在餐厅场景下的面对面实验，比较了主动型、被动型能力沟通策略与无策略的机器人在用户评分和行为上的差异。结果表明，主动沟通使用户更满意，调整交互风格为更自然的对话模式，且整体体验更佳。
原文摘要 · Abstract (English)
When encountering a robot in the wild, it is not inherently clear to human users what the robot's capabilities are. When encountering misunderstandings or problems in spoken interaction, robots often just apologize and move on, without additional effort to make sure the user understands what happened. We set out to compare the effect of two speech based capability communication strategies (proactive, reactive) to a robot without such a strategy, in regard to the user's rating of and their behavior during the interaction. For this, we conducted an in-person user study with 120 participants who had three speech-based interactions with a social robot in a restaurant setting. Our results suggest that users preferred the robot communicating its capabilities proactively and adjusted their behavior in those interactions, using a more conversational interaction style while also enjoying the interaction more.
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