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Jean-Pierre Nadal: Modeling urban social dynamics | |
| Auteur(s) : NADAL JEAN-PIERRE
25-09-2013
Éditeur(s) : Direction de l'audiovisuel de l'EHESS (Dir. Jean-Claude Penrad) ; Philippe KERGRAISSE; Description : Premier atelier de l'ERC « Reaction-Diffusion Equations, Propagations and Modelling » Journées d'étude organisées par Henri Berestycki et Jean-Michel Roquejoffre EHESS, 24-25 septembre 2013 Jean-Pierre Nadal Modeling urban social dynamics I will present models recently introduced for the modeling of social dynamics in urban context: social segregation, diffusion of criminality. In both cases, individual decisions (such as, respectively, to buy an appartment at a particular location, to commit a crime), may strongly depend on the behaviour/decisions of others. Based on social theories and empirical data, we consider family of models in which agents behaviour is coupled to a spatio-temporal field (representing, e.g., the attractiveness of the appartments, the local expected payoff of a theft or local propensity to commit a crime), which depends itself on the agents behaviours/choices (the social composition of the neighborhood, the local criminality level). We instantiate these models as either agent-based systems or a set of partial diffusion equations. The goal is to explain collective patterns. I will present results for specific cases, a model of the housing market in Paris, and/or a model for the formation of criminal hotspots. References : Laetitia Gauvin, Annick Vignes and Jean-Pierre Nadal Modeling urban housing market dynamics: can the socio-spatial segregation preserve some social diversity? Journal of Economic Dynamics and Control (JEDC), Volume 37, Issue 7, July 2013, Pages 1300-1321. Henri Berestycki and Jean-Pierre Nadal "Self-Organized Critical Hot Spots of Criminal Activity" European Journal of Applied Mathematics, Volume 21, Special Double Issue 4-5, Oct 2010, pp 371-399. Mots-clés libres : combinatoire, Informatique, Probabilité, EHESS Classification générale : Mathématiques Accès à la ressource : http://www.canal-u.tv/video/ehess/jean_pierre_nada... rtmp://fms2.cerimes.fr:80/vod/ehess/jean.pierre.na... Conditions d'utilisation : Droits réservés à l'éditeur et aux auteurs© Direction de l'Audiovisuel / EHESS / 2013 | DONNEES PEDAGOGIQUES Type pédagogique : cours / présentation DONNEES TECHNIQUES Format : video/x-flv Taille : 170.33 Mo Durée d'exécution : 40 minutes 5 secondes |
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