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Enhancing affective communication in embodied conversational agents through personality-based hidden conversational goals

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Enhancing affective communication in embodied conversational agents through personality-based hidden conversational goals

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Título Enhancing affective communication in embodied conversational agents through personality-based hidden conversational goals
Autor Leonhardt, Michelle Denise
Orientador Vicari, Rosa Maria
Co-orientador Pesty, Sylvie
Data 2012
Nível Doutorado
Instituição Universidade Federal do Rio Grande do Sul. Instituto de Informática. Programa de Pós-Graduação em Computação.
Assunto Ambiente : Aprendizagem
Inteligência artificial
Microeletronica
Tutores inteligentes
[en] Artificial intelligence
[en] Cognitive systems
[en] Embodied conversational agents
[en] Personality traits
Abstract Embodied Conversational Agents (ECAs) are intelligent software entities with an embodiment used to communicate with users, using natural language. Their purpose is to exhibit the same properties as humans in face-to-face conversation, including the ability to produce and respond to verbal and nonverbal communication. Researchers in the field of ECAs try to create agents that can be more natural, believable and easy to use. Designing an ECA requires understanding that manner, personality, emotion, and appearance are very important issues to be considered. In this thesis, we are interested in increasing believability of ECAs by placing personality at the heart of the human-agent verbal interaction. We propose a model relating personality facets and hidden communication goals that can influence ECA behaviors. Moreover, we apply our model in agents that interact in a puzzle game application. We develop five distinct personality oriented agents using an expressive communication language and a plan-based BDI approach for modeling and managing dialogue according to our proposed model. In summary, we present and test an innovative approach to model mental aspects of ECAs trying to increase their believability and to enhance human-agent affective communication. With this research, we hope to improve the understanding on how ECAs with expressive and affective characteristics can establish and maintain long-term human-agent relationships.
Tipo Tese
URI http://hdl.handle.net/10183/49756
Arquivos Descrição Formato
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