Mathematical description of a discrete event simulation (DEVS) using factor analytic method / J. Rodriquez in Journal of the operational research society (JORS), Vol. 63 N° 9 (Septembre 2012)  

Public ISBD [article]  inJournal of the operational research society (JORS) > Vol. 63 N° 9 (Septembre 2012) . - pp. 1179–1188 Titre : Mathematical description of a discrete event simulation (DEVS) using factor analytic method Type de document : texte imprimé Auteurs : J. Rodriquez, Auteur ; J. O. Miller, Auteur ; K. W. Bauer, Auteur Année de publication : 2012 Article en page(s) : pp. 1179–1188 Note générale : Operational research Langues : Anglais (eng) Mots-clés : Networks and graphs Simulation Statistics Index. décimale : 001.424 Résumé : Appropriately capturing the logic or results of a detailed simulation through some kind of aggregation to pass up a model hierarchy is a difficult task. This aggregation task involves two main questions: ‘what’ to aggregate and ‘how’ to perform this aggregation. This paper provides a well-defined approach for the ‘what’ portion of the aggregation process for hierarchical simulation models. We start by characterizing a simulation model in a mathematical format. We then use this mathematical description to identify what portion of a lower-level model can be aggregated, or to capture the logical flow of the full lower-level model. A useful mathematical representation of the simulation structure and logic is through the development of a network representation of the model. This, in turn, can be systematically decomposed into smaller sub-networks by performing model decomposition by means of factor analytic methods, which is the main topic of discussion. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v63/n9/abs/jors2011107a.html [article] Mathematical description of a discrete event simulation (DEVS) using factor analytic method [texte imprimé] / J. Rodriquez, Auteur ; J. O. Miller, Auteur ; K. W. Bauer, Auteur . - 2012 . - pp. 1179–1188. Operational research Langues : Anglais (eng) in Journal of the operational research society (JORS) > Vol. 63 N° 9 (Septembre 2012) . - pp. 1179–1188 Mots-clés : Networks and graphs Simulation Statistics Index. décimale : 001.424 Résumé : Appropriately capturing the logic or results of a detailed simulation through some kind of aggregation to pass up a model hierarchy is a difficult task. This aggregation task involves two main questions: ‘what’ to aggregate and ‘how’ to perform this aggregation. This paper provides a well-defined approach for the ‘what’ portion of the aggregation process for hierarchical simulation models. We start by characterizing a simulation model in a mathematical format. We then use this mathematical description to identify what portion of a lower-level model can be aggregated, or to capture the logical flow of the full lower-level model. A useful mathematical representation of the simulation structure and logic is through the development of a network representation of the model. This, in turn, can be systematically decomposed into smaller sub-networks by performing model decomposition by means of factor analytic methods, which is the main topic of discussion. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v63/n9/abs/jors2011107a.html

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