SensHRPS: Sensing Comfortable Human-Robot Proxemics and Personal Space With Eye-Tracking

Fuente: arXiv
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Autori principali: Kushina, Nadezhda, Watanabe, Ko, Kannan, Aarthi, Ashok, Ashita, Dengel, Andreas, Berns, Karsten
Natura: Preprint
Pubblicazione: 2025
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author Kushina, Nadezhda
Watanabe, Ko
Kannan, Aarthi
Ashok, Ashita
Dengel, Andreas
Berns, Karsten
author_facet Kushina, Nadezhda
Watanabe, Ko
Kannan, Aarthi
Ashok, Ashita
Dengel, Andreas
Berns, Karsten
contents Social robots must adjust to human proxemic norms to ensure user comfort and engagement. While prior research demonstrates that eye-tracking features reliably estimate comfort in human-human interactions, their applicability to interactions with humanoid robots remains unexplored. In this study, we investigate user comfort with the robot "Ameca" across four experimentally controlled distances (0.5 m to 2.0 m) using mobile eye-tracking and subjective reporting (N=19). We evaluate multiple machine learning and deep learning models to estimate comfort based on gaze features. Contrary to previous human-human studies where Transformer models excelled, a Decision Tree classifier achieved the highest performance (F1-score = 0.73), with minimum pupil diameter identified as the most critical predictor. These findings suggest that physiological comfort thresholds in human-robot interaction differ from human-human dynamics and can be effectively modeled using interpretable logic.
format Preprint
id arxiv_https___arxiv_org_abs_2512_08518
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle SensHRPS: Sensing Comfortable Human-Robot Proxemics and Personal Space With Eye-Tracking
Kushina, Nadezhda
Watanabe, Ko
Kannan, Aarthi
Ashok, Ashita
Dengel, Andreas
Berns, Karsten
Robotics
Artificial Intelligence
Human-Computer Interaction
Social robots must adjust to human proxemic norms to ensure user comfort and engagement. While prior research demonstrates that eye-tracking features reliably estimate comfort in human-human interactions, their applicability to interactions with humanoid robots remains unexplored. In this study, we investigate user comfort with the robot "Ameca" across four experimentally controlled distances (0.5 m to 2.0 m) using mobile eye-tracking and subjective reporting (N=19). We evaluate multiple machine learning and deep learning models to estimate comfort based on gaze features. Contrary to previous human-human studies where Transformer models excelled, a Decision Tree classifier achieved the highest performance (F1-score = 0.73), with minimum pupil diameter identified as the most critical predictor. These findings suggest that physiological comfort thresholds in human-robot interaction differ from human-human dynamics and can be effectively modeled using interpretable logic.
title SensHRPS: Sensing Comfortable Human-Robot Proxemics and Personal Space With Eye-Tracking
topic Robotics
Artificial Intelligence
Human-Computer Interaction
url https://arxiv.org/abs/2512.08518