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arXiv 2211.00352cs.RO
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人类教师向机器人演示操作任务的声学模式研究

Understanding Acoustic Patterns of Human Teachers Demonstrating Manipulation Tasks to Robots

Microsoft Research(微软研究院);University of Texas at Austin(德克萨斯大学奥斯汀分校);Karlsruhe Institute of Technology(卡尔斯鲁厄理工学院)

Akanksha Saran, Kush Desai, Mai Lee Chang, Rudolf Lioutikov, Andrea Thomaz, Scott Niekum

摘要:

人类在向其他人教授新技能或任务时,有效地使用口头语言或口头反应形式的音频信号。虽然演示允许人类以自然的方式教授机器人,但仅从轨迹学习并不能利用其他可用的模式,包括来自人类教师的音频。为了有效地利用伴随人类演示的音频提示,首先重要的是要了解存在什么样的信息并通过这些提示传达。这项工作的特点音频从人类教师演示多步操作任务的Sawyer机器人使用三种特征类型:(1)持续时间的语音使用,(2)在语音或韵律的表现力,和(3)语音的语义内容。我们从四个维度对这些特征进行分析,发现教师在(1)演示类型、(2)音频使用说明、(3)子任务和(4)演示错误等不同情况下,通过口语传达相似的语义概念。然而,语音在持续时间和表现力方面的差异性沿着四个维度存在,突出了人类音频携带的丰富信息,潜在地有利于机器人学习从演示方法的技术进步。

英文摘要:

Humans use audio signals in the form of spoken language or verbal reactions effectively when teaching new skills or tasks to other humans. While demonstrations allow humans to teach robots in a natural way, learning from trajectories alone does not leverage other available modalities including audio from human teachers. To effectively utilize audio cues accompanying human demonstrations, first it is important to understand what kind of information is present and conveyed by such cues. This work characterizes audio from human teachers demonstrating multi-step manipulation tasks to a situated Sawyer robot using three feature types: (1) duration of speech used, (2) expressiveness in speech or prosody, and (3) semantic content of speech. We analyze these features along four dimensions and find that teachers convey similar semantic concepts via spoken words for different conditions of (1) demonstration types, (2) audio usage instructions, (3) subtasks, and (4) errors during demonstrations. However, differentiating properties of speech in terms of duration and expressiveness are present along the four dimensions, highlighting that human audio carries rich information, potentially beneficial for technological advancement of robot learning from demonstration methods.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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