The Effects of Embodiment and Personality Expression on Learning in LLM-based Educational Agents

• URL: http://arxiv.org/abs/2407.10993v1
• Date: Mon, 24 Jun 2024 09:38:26 GMT
• Title: The Effects of Embodiment and Personality Expression on Learning in LLM-based Educational Agents
• Authors: Sinan Sonlu, Bennie Bendiksen, Funda Durupinar, Uğur Güdükbay,
• Abstract summary: This work investigates how personality expression and embodiment affect personality perception and learning in educational conversational agents. We extend an existing personality-driven conversational agent framework by integrating LLM-based conversation support tailored to an educational application. For each personality style, we assess three models: (1) a dialogue-only model that conveys personality through dialogue, (2) an animated human model that expresses personality solely through dialogue, and (3) an animated human model that expresses personality through both dialogue and body and facial animations.
• Score: 0.7499722271664147
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This work investigates how personality expression and embodiment affect personality perception and learning in educational conversational agents. We extend an existing personality-driven conversational agent framework by integrating LLM-based conversation support tailored to an educational application. We describe a user study built on this system to evaluate two distinct personality styles: high extroversion and agreeableness and low extroversion and agreeableness. For each personality style, we assess three models: (1) a dialogue-only model that conveys personality through dialogue, (2) an animated human model that expresses personality solely through dialogue, and (3) an animated human model that expresses personality through both dialogue and body and facial animations. The results indicate that all models are positively perceived regarding both personality and learning outcomes. Models with high personality traits are perceived as more engaging than those with low personality traits. We provide a comprehensive quantitative and qualitative analysis of perceived personality traits, learning parameters, and user experiences based on participant ratings of the model types and personality styles, as well as users' responses to open-ended questions.

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