Patrick BRÉZILLON: Research project

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Since 1991, our research activity is ascribed in the framework of the project on the Study of Context-based Intelligent Assistant Systems (CIASs). The study is based on a fusion of the approaches "Knowledge-Based Systems" and "Decision Support Systems". They also tackle the explicit integration of the notion of context and its use in computer systems. The CIASs have a multi-agent architecture and their functionality are developed in the frame work of industrial applications. Indeed, a given functionality has not the same importance from one application to another. Basis of CIASs have been established from several applications (EDF, Banque de France, CEA, RATP).

The SEPT application for Electricité de France (the French power company) leads us to point out that the architecture of a CIAS must (1) rely on a multi-agent platform with a unique agent (the communication agent) to manage interaction among computer agents and with the user; (2) have, as a minimal structure, three agents, namely the agent for the task at hand (disgnosis, monitoring, etc.), an agent for the knowledge configuration, and an agent for the simulation of the dynamic of the domain; and (3) make context explicit in the software. About ten persons worked on this application.

The SART application for RATP, the subway company in Paris (http://www.lip6.fr/SART), leads us, in the one hand, to the development of a domain-knowledge representation based on the metaphor, and, in the other hand, to the development of a context-based formalism called contextual graphs.

Moreover, we are dealing with new applications, the more advanced ones being with Cegelec for the Proteus project (context and e-maintenance)


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