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Modélisation cognitive d'interactions humaines
dans un cadre de planification multi-agents

Abstract : This PhD thesis aims at improving the design of multi-agent systems, thanks to the study and the modelling of human capabilities of planning and interaction. It is based on a psychological experiment where human subjects had to solve a planning problem with incomplete information.

The protocols collected during the experiment has been analyzed from from the planning point of view and from the interaction point of view. Thus, a model of human planning and a model of human interaction are proposed.

The human planning model and the human interaction model are integrated homogeneously into a new agent architecture called BDIGGY. Among existing agent models, the BDI (Belief, Desire, Intention) one offers an interesting framework to design deliberative agents able to plan and interact according to their mental states. Therefore, the BDIGGY architecture is a merging of the IGGY system (a pre-existent human planning model) and the BDI architecture extended to a cooperative problem solving context.

The human interaction model included in BDIGGY is twofold :
1. it is based on the speech act theory to model the utterances, with a set of performatives (as in classical ACL) applied to beliefs and desires ;
2. it uses a discourse model, represented by timed automata, to describe the dynamics of human conversations, instead of rigid communication protocols.

The utterance level and the discourse level are synchronized by a semantics of the performatives. This semantics summarizes the pre-conditions and the post-conditions that should be verified when receiving and sending a message, according to knowledge of the agent.

In BDIGGY, the interaction, planning and knowledge are linked thanks to the BDI concept. The BDIGGY architecture is validated by comparing, with a "Turing-like" test, the experimental protocols from the psychological experiment and the protocols generated by the BDIGGY agents, during a simulation of the problem solving.
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Submitted on : Thursday, January 18, 2007 - 4:15:04 PM
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  • HAL Id : tel-00125259, version 1


Alexandre Pauchet. Modélisation cognitive d'interactions humaines
dans un cadre de planification multi-agents. Autre [cs.OH]. Université Paris-Nord - Paris XIII, 2006. Français. ⟨tel-00125259⟩



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