{"id":965,"date":"2021-12-14T23:58:39","date_gmt":"2021-12-14T22:58:39","guid":{"rendered":"https:\/\/pageperso.lis-lab.fr\/bernard.espinasse\/nouveausite\/?page_id=965"},"modified":"2021-12-15T22:44:09","modified_gmt":"2021-12-15T21:44:09","slug":"these-nathalie-franchesquin","status":"publish","type":"page","link":"https:\/\/pageperso.lis-lab.fr\/bernard.espinasse\/index.php\/these-nathalie-franchesquin\/","title":{"rendered":"These Nathalie Franchesquin"},"content":{"rendered":"

Nathalie Franchesquin<\/strong>, \u00ab Mod\u00e9lisation et simulation multi-agents d\u2019\u00e9cosyst\u00e8mes anthropis\u00e9s : une application \u00e0 la gestion hydraulique en Grande Camargue \u00bb, soutenue le 12 d\u00e9cembre 2001.<\/span><\/p>\n

Manuscrit partie 1<\/a>, Manuscrit partie 2<\/a>, Manuscrit partie 3<\/a><\/span><\/p>\n

R\u00e9sum\u00e9<\/strong><\/span><\/p>\n

Cette \u00e9tude porte sur la mod\u00e9lisation et la simulation d’ \u00e9cosyst\u00e8mes fortement anthropis\u00e9s selon une approche multi-agents et traite plus particuli\u00e8rement de la gestion hydraulique de la Camargue. Cette r\u00e9gion, connue pour la qualit\u00e9 et la diversit\u00e9 de ses \u00e9cosyst\u00e8mes humides est soumise \u00e0 des pressions anthropiques cons\u00e9quence de la valorisation, initialement agricole, du territoire. Pour appr\u00e9hender la dynamique de cet \u00e9cosyst\u00e8me et apporter une aide \u00e0 sa gestion nous proposons d’en construire un mod\u00e8le et de le simuler. Notre mod\u00e9lisation repose sur deux mod\u00e8les en interaction le mod\u00e8le de l’\u00e9cosyst\u00e8me et le mod\u00e8le de la gestion hydraulique. La phase d’analyse du mod\u00e8le de l’\u00e9cosyst\u00e8me d\u00e9crit la discr\u00e9tisation de l’espace retenue et les diff\u00e9rentes entit\u00e9s n\u00e9cessaires \u00e0 la mod\u00e9lisation de l’eau sur cet espace. La gestion hydraulique de cet \u00e9cosyst\u00e8me est formalis\u00e9e comme l’\u00e9laboration et la r\u00e9alisation d’un contrat entre agents. Lors de l’\u00e9laboration du contrat les agents n\u00e9gocient des objectifs communs pour l’\u00e9cosyst\u00e8me, et, lors de sa r\u00e9alisation, ils d\u00e9finissent les actions \u00e0 mener pour respecter ce contrat. Pour chacune de ces deux phases du contrat nous avons d\u00e9fini les mod\u00e8les de n\u00e9gociation associ\u00e9s. La mod\u00e9lisation multi-agents s’appuie sur une m\u00e9thodologie sp\u00e9cifique structur\u00e9e en deux \u00e9tapes. A partir de la description des r\u00f4les n\u00e9cessaires \u00e0 la gestion de l’\u00e9cosyst\u00e8me, la premi\u00e8re \u00e9tape conduit \u00e0 l’\u00e9laboration de l’architecture du syst\u00e8me multi-agents en d\u00e9finissant les diff\u00e9rents types d’agents et leurs interactions. La seconde \u00e9tape sp\u00e9cifie de fa\u00e7on d\u00e9taill\u00e9e les plans comportementaux et les connaissances de chacun de ces agents. Cette mod\u00e9lisation a permis le d\u00e9veloppement d’un prototype r\u00e9alis\u00e9e sur une plateforme multi-agents int\u00e9grant le moteur d’inf\u00e9rences CLIPS\/JESS. Diff\u00e9rents jeux de simulations obtenus avec ce prototype sont pr\u00e9sent\u00e9s et permettent de mesurer l’influence relative des d\u00e9cisions de gestion sur l’\u00e9tat de l’\u00e9cosyst\u00e8me. <\/span><\/p>\n

Abstract<\/em><\/span><\/p>\n

This study deals with the modelling and simulation of highly anthropised ecosystems using a multi-agent approach and deals more specifically with the hydraulic management of the Camargue. This region, known for the quality and diversity of its wetland ecosystems, is subject to anthropic pressures as a result of the development, initially agricultural, of the territory. In order to understand the dynamics of this ecosystem and to provide assistance in its management, we propose to build a model and to simulate it. Our model is based on two interacting models: the ecosystem model and the hydraulic management model. The analysis phase of the ecosystem model describes the discretization of the selected space and the different entities necessary to model the water in this space. The hydraulic management of this ecosystem is formalised as the development and implementation of a contract between agents. During the elaboration of the contract, the agents negotiate common objectives for the ecosystem, and during its realisation, they define the actions to be carried out in order to respect this contract. For each of these two phases of the contract we have defined the associated negotiation models. The multi-agent modelling is based on a specific methodology structured in two steps. From the description of the roles necessary for the management of the ecosystem, the first step leads to the elaboration of the architecture of the multi-agent system by defining the different types of agents and their interactions. The second step specifies in detail the behavioural plans and knowledge of each of these agents. This modelling allowed the development of a prototype on a multi-agent platform integrating the CLIPS\/JESS inference engine. Different sets of simulations obtained with this prototype are presented and allow us to measure the relative influence of management decisions on the state of the ecosystem.<\/em><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Nathalie Franchesquin, \u00ab Mod\u00e9lisation et simulation multi-agents d\u2019\u00e9cosyst\u00e8mes anthropis\u00e9s : une application \u00e0 la gestion hydraulique en Grande Camargue \u00bb, soutenue le 12 d\u00e9cembre 2001. Manuscrit partie 1, Manuscrit partie 2, Manuscrit partie 3 R\u00e9sum\u00e9 Cette \u00e9tude porte sur la mod\u00e9lisation et la simulation d’ \u00e9cosyst\u00e8mes fortement anthropis\u00e9s selon une approche multi-agents et traite plus … <\/p>\n

Continuer la lecture \u00ab\u00a0These Nathalie Franchesquin\u00a0\u00bb<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_crdt_document":"","footnotes":""},"class_list":["post-965","page","type-page","status-publish","hentry","entry"],"_links":{"self":[{"href":"https:\/\/pageperso.lis-lab.fr\/bernard.espinasse\/index.php\/wp-json\/wp\/v2\/pages\/965","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pageperso.lis-lab.fr\/bernard.espinasse\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/pageperso.lis-lab.fr\/bernard.espinasse\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/pageperso.lis-lab.fr\/bernard.espinasse\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/pageperso.lis-lab.fr\/bernard.espinasse\/index.php\/wp-json\/wp\/v2\/comments?post=965"}],"version-history":[{"count":10,"href":"https:\/\/pageperso.lis-lab.fr\/bernard.espinasse\/index.php\/wp-json\/wp\/v2\/pages\/965\/revisions"}],"predecessor-version":[{"id":1136,"href":"https:\/\/pageperso.lis-lab.fr\/bernard.espinasse\/index.php\/wp-json\/wp\/v2\/pages\/965\/revisions\/1136"}],"wp:attachment":[{"href":"https:\/\/pageperso.lis-lab.fr\/bernard.espinasse\/index.php\/wp-json\/wp\/v2\/media?parent=965"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}