Expertise et système de recherche d'informations en dialogue naturel : vers une considération des connaissances utilisateur

This paper proposes a general principle to adapt the reactions of a rational dialogue agent to a user by taking into account this user's profile. Based on the theory of interaction, the model we introduce first represents the knowledge the user has on his search domain. In a second time, this model implements agent behaviour rules based on experimental results in cognitive ergonomy. We illustrate user model consideration on the case of information retrieval on the Web. MOTS CLÉS: Agent, Interface homme-Machine, Modèle utilisateur, Recherche d'Information