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Paquette, Gilbert; Pachet, François; Giroux, Sylvain et Girard, Jean (1996). ÉpiTalk, generating advisor agents for existing information systems. International Journal of Artificial Intelligence in Education, 7 (3-4), 349-379.
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| Catégorie de document : | Articles de revues |
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| Évaluation par un comité de lecture : | Oui |
| Étape de publication : | Publié |
| Résumé : | Advisor components play an important role in intelligent tutoring systems and learning environments, as well as in electronic performance support systems and help components of commercial applications. A complete advisor should go beyond mere contextual help wired in an information system. It should achieve good balance between the user’s and the advisor’s initiative. It should be able to offer suggestions at different levels of abstraction, from very domain-specific suggestions to more abstract generic problem solving methods. Finally, it should use various viewpoints on the user’s tasks, and support collaborative as well as individual activities. Indeed, this is not trivial. We present here the research results of the first phase of the ÉpiTalk project. ÉpiTalk is a generic tool designed to facilitate the development of advisor systems. It is based on a design process that formalizes task analysis results in the form of a tasks tree, further structured by progression links between progress levels associated with each task. A model of the application needs to be built and used to define the terms that will be used to trigger the individual actions that the advisor system will provide. These are distributed into advisor agents, each assigned to a specific task in the tasks tree. Each agent has components to analyze the user’s activity and select relevant pieces of advise or actions. Then an intervention strategy must be defined and used to select the actual actions that will be proposed to the user. The ÉpiTalk system has been implemented using a multi-agent architecture. It aims to free the designers from technical preoccupation, encouraging focus on the elicitation of the knowledge needed for the definition of the advisor system. The “epiphyte” property insures independence towards the application, thus favoring reusability and maintenance of advisor components ÉpiTalk has been used to develop the advisor for a course design workbench (AGD), as well as is two other application domains. These applications demonstrate the feasibility and the generality of the approach. Furthermore various types of advice content and initiative patterns have been implemented. Other issues demanding further research are also discussed. |
| Déposant: | Paquette, Gilbert |
| Responsable : | Gilbert Paquette |
| Dépôt : | 30 avr. 2025 17:11 |
| Dernière modification : | 30 avr. 2025 17:11 |
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