Does the Appearance of Autonomous Conversational Robots Affect User Spoken Behaviors in Real-World Conference Interactions?

• URL: http://arxiv.org/abs/2503.13625v1
• Date: Mon, 17 Mar 2025 18:20:30 GMT
• Title: Does the Appearance of Autonomous Conversational Robots Affect User Spoken Behaviors in Real-World Conference Interactions?
• Authors: Zi Haur Pang, Yahui Fu, Divesh Lala, Mikey Elmers, Koji Inoue, Tatsuya Kawahara,
• Abstract summary: We compare a human-like android, ERICA, with a less anthropomorphic humanoid, TELECO.<n>The results show that participants produced fewer disfluencies and employed more complex syntax when interacting with ERICA.<n>We conclude that designing robots to elicit more structured and fluent user speech can enhance their communicative alignment with humans.
• Score: 19.873188667424024
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We investigate the impact of robot appearance on users' spoken behavior during real-world interactions by comparing a human-like android, ERICA, with a less anthropomorphic humanoid, TELECO. Analyzing data from 42 participants at SIGDIAL 2024, we extracted linguistic features such as disfluencies and syntactic complexity from conversation transcripts. The results showed moderate effect sizes, suggesting that participants produced fewer disfluencies and employed more complex syntax when interacting with ERICA. Further analysis involving training classification models like Na\"ive Bayes, which achieved an F1-score of 71.60\%, and conducting feature importance analysis, highlighted the significant role of disfluencies and syntactic complexity in interactions with robots of varying human-like appearances. Discussing these findings within the frameworks of cognitive load and Communication Accommodation Theory, we conclude that designing robots to elicit more structured and fluent user speech can enhance their communicative alignment with humans.

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