Effects of Communication Channels on Explainable Food Recommendation Systems
Berkecan Koçyiğit (Özyeğin University)
Berk Buzcu (University of Applied Sciences and Arts Western Switzerland)
Davide Calvaresi (University of Applied Sciences and Arts Western Switzerland)
Zehra Kesemen (Özyeğin University)
Joris Hulstijn (Universiteit Utrecht)
Igor Tchappi (Université du Luxembourg)
Reyhan Aydoğan (TU Delft - Interactive Intelligence, Özyeğin University)
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Abstract
This chapter examines the effects of communication channels on user engagement, acceptance, and satisfaction within a personalized food recommendation system, which provides explanations. We tested two conditions: a tablet web interface and a humanoid robot along with a tablet. Our findings demonstrate that, despite occasional user frustrations with the robot’s slower response time and overall interaction style, the robot’s presence enhances the social perception of the interaction. Overall, the results suggest potential for socially interactive robots.
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File under embargo until 06-03-2026