Modeling and simulating hierarchies using an agent-based approach

Müller Jean Pierre, Ratzé Cédric, Gillet François, Stoffel Kilian. 2005. Modeling and simulating hierarchies using an agent-based approach. In : Advances and applications for management and decision making. Proceedings of the MODSIM 2005 International Congress on Modelling and Simulation, 12-15 December 2005, Melbourne, Australia. Zerger A. (ed.), Argent R.M. (ed.). s.l. : MSSANZ, 1631-1638. ISBN 0-9758400-2-9 International Congress on Modelling and Simulation, Melbourne, Australie, 12 Décembre 2005/15 Décembre 2005.

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Url - éditeur : http://www.mssanz.org.au/modsim05/

Résumé : The notion of complex system covers many different meanings. Socio-economical and ecological systems are typically kind of 'organized complex systems', defined as a middle number of heterogeneous components interacting in an intricate manner and producing emergent properties and dynamics. The only possibility to understand and to model such complex systems is to exhibit some organizational principles behind the apparent inextricability. The hierarchy theory in ecology allows a decomposition of this kind of systems that could improve our understanding of the underlying dynamic processes. Formally, it is a view of ecological systems, which takes the scales of observation explicitly into account and which tries to conceptualize the phenomena at their proper scale. This conceptualization mostly exhibits nested hierarchical systems in the sense that a system at a given scale contains its component subsystems at the underlying scale. Socio-economical systems additionally exhibit nonnested hierarchies in which representatives of social groups (and not the groups themselves) form higher level groups or organizations. The aim of this paper is to propose a set of concepts to formalize both nested and non-nested hierarchical systems. For the first kind of systems, we will review the hierarchy theory in ecology to extract the main concepts, mainly the concept of holon. Independently, we will review the concepts of agents, groups and roles (AGR) to represent ecosociological systems as proposed in Ferber et Gutknecht (1998). Finally, we will propose a modeling and simulation formalism able to represent these concepts in a unified framework and discuss some of its advantages and disadvantages.

Mots-clés Agrovoc : modèle de simulation, analyse de système

Mots-clés complémentaires : Système multiagents

Classification Agris : U10 - Informatique, mathématiques et statistiques

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