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What Am I? Evaluating the Effect of Language Fluency and Task Competency on the Perception of a Social Robot

Shahira Ali, Haley N. Green, Tariq Iqbal

TL;DR

A large-scale HRI study to investigate the combined impact of both language fluency and task competency on the perception of a robot suggests that while language fluency may play a more significant role than task competency in the perception of the verbal competency of a robot, both language fluency and task competency contribute to the perception of the intelligence and reliability of the robot.

Abstract

Recent advancements in robot capabilities have enabled them to interact with people in various human-social environments (HSEs). In many of these environments, the perception of the robot often depends on its capabilities, e.g., task competency, language fluency, etc. To enable fluent human-robot interaction (HRI) in HSEs, it is crucial to understand the impact of these capabilities on the perception of the robot. Although many works have investigated the effects of various robot capabilities on the robot's perception separately, in this paper, we present a large-scale HRI study (n = 60) to investigate the combined impact of both language fluency and task competency on the perception of a robot. The results suggest that while language fluency may play a more significant role than task competency in the perception of the verbal competency of a robot, both language fluency and task competency contribute to the perception of the intelligence and reliability of the robot. The results also indicate that task competency may play a more significant role than language fluency in the perception of meeting expectations and being a good teammate. The findings of this study highlight the relationship between language fluency and task competency in the context of social HRI and will enable the development of more intelligent robots in the future.

What Am I? Evaluating the Effect of Language Fluency and Task Competency on the Perception of a Social Robot

TL;DR

A large-scale HRI study to investigate the combined impact of both language fluency and task competency on the perception of a robot suggests that while language fluency may play a more significant role than task competency in the perception of the verbal competency of a robot, both language fluency and task competency contribute to the perception of the intelligence and reliability of the robot.

Abstract

Recent advancements in robot capabilities have enabled them to interact with people in various human-social environments (HSEs). In many of these environments, the perception of the robot often depends on its capabilities, e.g., task competency, language fluency, etc. To enable fluent human-robot interaction (HRI) in HSEs, it is crucial to understand the impact of these capabilities on the perception of the robot. Although many works have investigated the effects of various robot capabilities on the robot's perception separately, in this paper, we present a large-scale HRI study (n = 60) to investigate the combined impact of both language fluency and task competency on the perception of a robot. The results suggest that while language fluency may play a more significant role than task competency in the perception of the verbal competency of a robot, both language fluency and task competency contribute to the perception of the intelligence and reliability of the robot. The results also indicate that task competency may play a more significant role than language fluency in the perception of meeting expectations and being a good teammate. The findings of this study highlight the relationship between language fluency and task competency in the context of social HRI and will enable the development of more intelligent robots in the future.

Paper Structure

This paper contains 22 sections, 2 figures, 1 table.

Figures (2)

  • Figure 1: A NAO robot plays the "What Am I?" game with a human. The participant sits opposite the robot during the game and guesses the identity of the animal that the robot is assuming from the list provided to them.
  • Figure 2: Bar graphs showing participants' perceptions of verbal competence, intelligence, and reliability as well as their ratings of expectations being met, the robot as a teammate, and their willingness to work with the robot again across four varying robot conditions (the robot being fluent and task competent, fluent and task incompetent, disfluent and task competent, and disfluent and task incompetent). Error bars 95% CI. The significant values are shown in * ($* = p < .05$, $** = p < .01$, $*** = p < .001$).