Where Should Robots Talk? Spatial Arrangement Study from a Participant Workload Perspective

Takahiro Matsumoto, Mitsuhiro Goto, Ryo Ishii, Tomoki Watanabe, Tomohiro Yamada, Michita Imai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Several benefits obtained using multiple robots in conversation have been reported in the human-robot interaction field. This paper first presents pre-trial results by which elderly people assigned a lower rating to a conversation with two robots than to one with a single robot. Observations of the trial suggest the hypothesis that an inappropriate spatial arrangement between robots and humans increases the workload in a conversation. Reducing the workload is important, especially when robots are used by elderly people. Therefore, we specifically examine the workload that is influenced by the spatial arrangement in group conversation. To verify the hypothesis, we use a NASA-TLX and a dual-task method to evaluate the workload and to conduct a comparative experiment in which the participant talks with two robots in two spatial arrangements. We also conduct a case study for elderly people in the same conversational conditions. From these experiments, we demonstrate that the spatial arrangement in which people cannot see both robots simultaneously increases their conversational workload and decreases their evaluation of the dialogue compared to a spatial arrangement by which people can see both robots simultaneously. We also show that the primary cause of the workload by positioning is not physical but mental.

Original languageEnglish
Title of host publicationHRI 2018 - Proceedings of the 2018 ACM/IEEE International Conference on Human-Robot Interaction
PublisherIEEE Computer Society
Pages270-278
Number of pages9
VolumePart F135041
ISBN (Electronic)9781450349536
DOIs
Publication statusPublished - 2018 Feb 26
Event13th Annual ACM/IEEE International Conference on Human-Robot Interaction, HRI 2018 - Chicago, United States
Duration: 2018 Mar 52018 Mar 8

Other

Other13th Annual ACM/IEEE International Conference on Human-Robot Interaction, HRI 2018
CountryUnited States
CityChicago
Period18/3/518/3/8

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Keywords

  • F-formation
  • Multi-robot conversation
  • Workload in conversation

ASJC Scopus subject areas

  • Artificial Intelligence
  • Human-Computer Interaction
  • Electrical and Electronic Engineering

Cite this

Matsumoto, T., Goto, M., Ishii, R., Watanabe, T., Yamada, T., & Imai, M. (2018). Where Should Robots Talk? Spatial Arrangement Study from a Participant Workload Perspective. In HRI 2018 - Proceedings of the 2018 ACM/IEEE International Conference on Human-Robot Interaction (Vol. Part F135041, pp. 270-278). IEEE Computer Society. https://doi.org/10.1145/3171221.3171265