Дисертації з теми "Système de multi-agents"
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся з топ-50 дисертацій для дослідження на тему "Système de multi-agents".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Переглядайте дисертації для різних дисциплін та оформлюйте правильно вашу бібліографію.
Nkoghe, Jean-Marc. "Système de filtrage multi-agents." Thèse, Université de Sherbrooke, 2002. http://savoirs.usherbrooke.ca/handle/11143/1748.
Повний текст джерелаMeftouh, Fouad. "Système de commande temps-réel multi-agents." Toulouse, ENSAE, 1993. http://www.theses.fr/1993ESAE0029.
Повний текст джерелаChator, Olivier. "Système multi-agents centré sur les compétences." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0009/document.
Повний текст джерелаIn France, the “Conseil Général de la Gironde” is a local authority that promotes various sustainable development policies and practices. One of its missions is to coordinate and stimulate public and private partnerships in the framework of green building projects.Whatever the sector of professional activities and the thematic addressed, the concrete projects’ feedbacks show all the complexity to succeed in managing efficiently the collaboration of involved actors. Indeed, each of them has only a partial knowledge ofthe others’ skills. To answer to the problematic, and in order to improve the management of the projects, we propose an online collaborative tool that allows actors to share skills. According to the “Multi-Agent” theory, "skill agents" have been defined.The key idea is to consider that a skill is an agent of the system, and the actors are only its resources.Skill agents are dynamic and autonomous, have learning abilities, and have their ownlife cycle. They pursue four main goals: building their own definition, identifying actorswho can concretize them across projects, setting up links with other skill agents, and beeing candidates to new projects. Skill agents interact with human actors to stimulate their cooperation.This work shows that our model is appropriate for complex collaborative projects,giving results in various areas. For example, a case study based on the selection of players to form a rugby team has been given
Gâteau, Benjamin. "Modélisation et Supervision d'Institutions Multi-Agents." Phd thesis, Ecole Nationale Supérieure des Mines de Saint-Etienne, 2007. http://tel.archives-ouvertes.fr/tel-00777825.
Повний текст джерелаAlmeida, James de. "Emergence de l'organisation fonctionnelle d'un système multi-agents." Nancy 2, 1997. http://www.theses.fr/1997NAN21038.
Повний текст джерелаThe thesis presents a research part of a largest project supported by psychologists, ethnologists and automata designers. This research propose a methodology to design a multi-agents system working as a multi-humans system working; more exactly, in the course of activities, without pacification and without optimality systematic search. From ethologic models with the notions of emergence and self-organization in animal societies, from natural language interaction analysis techniques developed in the” groupe de recherche sur les communications”(Nancy 2), we systematize the parallel multi-robots socio-cognitive dynamic resolution problem from its interlocutionnary activity. The peculiarity of this designing process is twofold: on the one hand, the approach is bottom-up - i. E. We determine the pilot's model from the results of inductive and interlocutionary analyses of a conversational corpus; on the other hand, we use a methodology and theories coming from an interactional and constructivist psycho-sociological approach
Gaud, Nicolas A. "Systèmes multi--agents holoniques : de l'analyse à l'implantation : méta-modèle, méthodologie, et simulation multi-niveaux." Besançon, 2007. http://www.theses.fr/2007BESA2014.
Повний текст джерелаThe work, presented in this PhD thesis, is concerned with the study of complex systems and aims at provinding a full set of abstractions and the associated methodological guidelines for the analysis, design, implementation and simulation of Holonic MultiAgent Systems (HMAS). HMAS offers a promising software engineering approach for developing complex open software systems. This kind of systems consists in self-similar structures called holons. A set of holons maybe seen, depending on the level of observation, as a unique entity or as a group of holons in interaction. A complex system is made up of a large number of parts that have many interactions. In such systems, the behavior of the whole cannot be directly understood only by knowing the behavior of the parts and their interactions. Complex systems often exhibit a hierarchical structure. The foundation of this thesis consist in exploiting the intrinsic hierarchical structure of complex systems toa analyse and decompose them. In order to conceive modular and reusable models, an organizational approacg is adopted. The principle of the analysis is based on the identification of a hierarchy of organizations, which the global behavior may represent the system under the chosen perspective. The behaviors of the system are recursively decomposed into a set on interacting sub-behaviors, each of these latter being in turn decomposed until we reach some lowest level of elementary sub-behaviors. At a given level, the composed behavior is modeled unsing an organization, and the associated sub-behaviors using roles. The hierarchical organization structure is then mapped to holarchy (hierarchy of holons) in charge of its execution. The concepts presented are then used to study the issues related to the multilevel multiagent simulation. The resulting model is finally applied th the pedestrians simulation in virtual environment
Buguellou, Jean-Baptiste. "Micro-simulation des déplacements par système multi-agents : exploration multi-niveaux." Thesis, Tours, 2012. http://www.theses.fr/2012TOUR1801/document.
Повний текст джерелаFrom the perspective of best practice assessment of daily mobility, it should refocus the methods and tools for decision aid around the actors in travel: users. In this logic MICROBILIS model was developed to evaluate the adaptation strategies of users relative to their environmental transport. Three streams have been mobilized: the micro-simulation of assignment models, graph theory and multi-agent systems. The environment is modeled from a microscopic simulator of movements and a cellular graph, defining the network capacity. The simulations allow to find the empirical relationships of the dynamics of traffic on the sections and highlight upper capacity constraints at intersections. The transition to the simulation of a large network induces the complexity of the environment and the multiplication of particular cases. It was not possible to make this transition without reducing the initial assumptions, making it unrepresentative of reality
Grislin, Emmanuelle. "Une méthodologie d'auto-adaptation d'un système multi-agents cognitifs." Valenciennes, 1995. https://ged.uphf.fr/nuxeo/site/esupversions/85df931f-7139-4323-95d6-0f5b56346d69.
Повний текст джерелаMorge, Maxime. "Système dialectique multi-agents pour l'aide à la concertation." Saint-Etienne, EMSE, 2005. http://tel.archives-ouvertes.fr/docs/00/79/73/76/PDF/2005_Morge_Maxime.pdf.
Повний текст джерелаThe goal of this research work is the formalization of a justified and collective de- cision by a Multi-Agent System (MAS). Such a system consists of autonomous, congitive and social agents communicating by messages. In this thesis, we assert that the dialogue could be considered as an argumentative process in which parties play and arbitrate to reach an agreement. We propose here a dialectics multiagent system to formalize such a process. This system, entitled DIAL (DIALogue Is an Argumentative Labour), is used to provide a group decision support system
Breil, Romaric. "Système multi-agents pour l'auto-structuration du trafic aérien." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30359/document.
Повний текст джерелаAir Traffic Flow Management (ATFM) aims at structuring traffic in order to reduce congestion in airspace. Congestion being linked to aircraft located at the same position at the same time, ATFM organizes traffic in the spatial dimension (e.g. route network) and in the time dimension (e.g. sequencing and merging of aircraft flows taking off or landing at airports). The objective of this thesis is to develop a methodology that allows the traffic to self-organize in the time and space dimensions when demand is high. This structure disappears when the demand diminishes. In order to reach this goal, a multi-agent system has been developed, in which aircraft cooperate to structure traffic. Multi-agent systems have several advantages, including a good resilience when confronted with disruptive events, resilience being the ability of the system to adapt its decisions in order to get back to a stable state when confronted to a disruption in its environment. In this system, three algorithms have been implemented, aiming at reducing traffic complexity in three different ways. The first algorithm allows aircraft agents flying on a route network to regulate speed in order to reduce the number of conflicts, a conflict occurring when two aircraft do not respect separation norms. The second algorithm allows aircraft to solve conflicts when the traffic is not structured by a route network. The third algorithm creates temporary local route networks allowing to structure traffic. The three algorithms implemented in this multi-agent system allow to decrease overall traffic complexity, which becomes easier to manage by air traffic controllers. This algorithm was applied on realistic examples and was able to structure traffic in a resilient way
Joumaa, Hussein. "Analyse des performances d'un système multi-agents par visualisation." Phd thesis, Grenoble, 2010. https://theses.hal.science/tel-00651829.
Повний текст джерелаThe analysis and understanding of computer systems behaviour is an important part in the development cycle. Performance visuali:zation is one of the techniques that can be used to perform a global analysis of a system's behaviour. This technique supports performance debugging. It is essential to identify where and when the ressources are consumed during running time. It pro vides the programmer performance indices and the internai behaviour of the entities in the system. Due to the recent interest in using multi-agent systems in a wide variety of application domains, the analysis and understanding of the internai complex characteristics (interaction, distribution of intelligence, cooperation, coordination, decentralization,. . . ) ofmulti¬agent systems has become a priority. Usually, the behaviour ofa multi-agent system is studied from a global point ofview. The multi-agent system is viewed as a black box where entities interact one with the other in oerder to reach a global goal. Unfortunately, this approach does not provide sufficier information for a complete study ofthe multi-agent system behaviour. A study at the level of the entities composing the multi-agent system is necessar: The performance visualization of a multi-agent system application can be an approach to deal with this problem. Ln this work, we propose an approach to evaluate and to understand the internai behaviour of a multi-agent system application using visualization. We apply this approach on a transport multi-agent application
Joumaa, Hussein. "Analyse des performances d'un système multi-agents par visualisation." Phd thesis, Grenoble, 2010. http://tel.archives-ouvertes.fr/tel-00651829.
Повний текст джерелаDubois, Michel. "MASL, langage de contrôle multi-agents robotiques." Phd thesis, Université de Bretagne Sud, 2008. http://tel.archives-ouvertes.fr/tel-00502455.
Повний текст джерелаLucas, Iris. "Dynamique et contrôle d'un marché financier avec une approche système multi-agents." Thesis, Normandie, 2018. http://www.theses.fr/2018NORMLH39/document.
Повний текст джерелаThis thesis suggests reflection in studying financial markets through complex systems prism.First, an original mathematic description for describing agents' decision-making process in case of problems affecting by both individual and collective behavior is introduced. The proposed method is particularly applicable when studied system is characterized by non-linear, path dependent and self-organizing interactions. An application to financial markets is proposed by designing a multi¬agent system based on the proposed formalization.In this application, we propose to implement a computational agent-based financial market in which the system is described in both a microscopie and macroscopic levels are proposed. The agents' decision-making process is based on fuzzy logic rules and the price dynamic is purely deten-ninistic according to the basis matching rules of a central order book as in NYSE-Euronext-Paris. We show that, while putting most parameters under evolutionary control, the computational agent- based system is able to replicate several stylized facts of financial time series (distributions of stocks returns showing a heavy tau l with positive excess kurtosis and volatility clustering phenomenon).Thereafter, with numerical simulations we propose to study three system's properties: self-organization, resilience and robustness. First a method is introduced to quantify the degree of selforganization which ernerges in the system and shows that the capacity of self-organization is maximized when the agents' behaviors are heterogeneous. Secondly, we propose to study the system's response when market shock is simulated. in both cases, numerical results are presentedI and analyzed, showing how the global market behavior emerges from specific individual behavior interactions.Our results notably show that the emergence of collective herding behavior when market shock occurs leads to a temporary disruption on the system self-organization. Finaily, numerical simulations highlight that our artificial financial market can be able to absorb strong mono-shock but be lead to the rupture by low but repeated perturbations
Monier, Pierre. "DBS multi-variables pour des problèmes de coordination multi-agents." Phd thesis, Université de Valenciennes et du Hainaut-Cambresis, 2012. http://tel.archives-ouvertes.fr/tel-00716275.
Повний текст джерелаRiberio, Alexandre Moretto. "Un modèle d'interaction dynamique pour les systèmes multi-agents." Université Joseph Fourier (Grenoble), 2000. http://www.theses.fr/2000GRE10035.
Повний текст джерелаMahdjoub, Jason. "Vers un système de vision auto-adaptatif à base de systèmes multi-agents." Phd thesis, Université de Reims - Champagne Ardenne, 2011. http://tel.archives-ouvertes.fr/tel-00937422.
Повний текст джерелаGraja, Zaineb. "Vérification formelle des systèmes multi-agents auto-adaptatifs." Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30105/document.
Повний текст джерелаA major challenge for the development of self-organizing MAS is to guarantee the convergence of the system to the overall function expected by an external observer and to ensure that agents are able to adapt to changes. In the literature, several works were based on simulation and model-checking to study self-organizing MAS. The simulation allows designers to experiment various settings and create some heuristics to facilitate the system design. Model checking provides support to discover deadlocks and properties violations. However, to cope with the complexity of self-organizing MAS, the designer also needs techniques that support not only verification, but also the development process itself. Moreover, such techniques should support disciplined development and facilitate reasoning about various aspects of the system behavior at different levels of abstraction. In this thesis, three essential contributions were made in the field of formal development and verification of self-organizing MAS: a formalization with the Event-B language of self-organizing MAS key concepts into three levels of abstraction, an experimentation of a top-down refinement strategy for the development of self-organizing MAS and the definition of a bottom-up refinement process based on refinement patterns
Chevrier, Vincent. "Etude et mise en oeuvre du paradigme multi-agents." Nancy 1, 1993. http://www.theses.fr/1993NAN10112.
Повний текст джерелаBoissier, Olivier. "Problème du contrôle dans un système intégré de vision : utilisation d'un système multi-agents." Phd thesis, Grenoble INPG, 1993. http://tel.archives-ouvertes.fr/tel-00005123.
Повний текст джерелаBothorel, Cécile. "Système multi-agents pour l'auto-organisation de communautés d'intérêts dynamiques et distribuées." Toulouse 3, 1999. http://www.theses.fr/1999TOU30222.
Повний текст джерелаBenhajji, Noura. "Système multi-agents de pilotage réactif des parcours patients au sein des systèmes hospitaliers." Thesis, Université de Lorraine, 2017. http://www.theses.fr/2017LORR0245/document.
Повний текст джерелаThrough our research, we offer a support tool for the managers in Robert Pax hospital in Sarreguemine (France), and more generally any hospital center wishing to develop a patient centered approach. We were inspired by « product centered » approaches emerging from industrial domain which were proposed to answer the increasing requirements of products management. By analogy, health care systems patient centered can be assimilated to production systems product centered. However, it is important not to lose sight of the specificities of health care systems which is the human factor. This specificity makes this system complex, random and unpredictable. Besides, the approaches used in industrial or hospital environment, are mainly mathematical models and simulation approaches centered on one ore several resources categorized as critical. In that sense, it seemed judicious to choose a patient centered approach based on a multi-agent paradigm. We proposed a Reactive multi-agent control system of the patient flow in healthcare system. The proposed alternative is a patient centered approach allowing to minimize the patients waiting time and the length of their stay and consequently the care costs. The proposed approach also ensures the care quality and an optimal use of the hospital resources
Poulet, Cyril. "Coordination dans les systèmes multi-agents : Le problème de la patrouille en système ouvert." Paris 6, 2013. http://www.theses.fr/2013PA066152.
Повний текст джерелаThe timed multi-agent patrolling task is an interesting problem to test and compare coordination strategies on a cooperative task: visiting repetitively and frequently areas of interest in a graph. However, until now this task was limited by strong hypothesis: the system is closed, and the communications are synchronous. These hypotheses limit strongly both its complexity and applicability. In this thesis, we propose to lift these hypotheses and study the behaviour of various coordination strategies on the new task. In a first time, we propose a framework for the new problem: formal description, metrics, and strategies to use as references. In a second time, we show the impact of lifting these hypotheses on auction-based, decentralized strategies. We propose various mechanisms to cope with the open system setting and decrease its impact. We also show that it is possible to apply computational social choice theory concepts to the patrolling task and create cooperative, decentralized auction-based strategies that perform as well as centralized, reference strategies. Finally, we open the patrolling problem on the scaling perspective, both in terms of graph size and population size
Benhajji, Noura. "Système multi-agents de pilotage réactif des parcours patients au sein des systèmes hospitaliers." Electronic Thesis or Diss., Université de Lorraine, 2017. http://www.theses.fr/2017LORR0245.
Повний текст джерелаThrough our research, we offer a support tool for the managers in Robert Pax hospital in Sarreguemine (France), and more generally any hospital center wishing to develop a patient centered approach. We were inspired by « product centered » approaches emerging from industrial domain which were proposed to answer the increasing requirements of products management. By analogy, health care systems patient centered can be assimilated to production systems product centered. However, it is important not to lose sight of the specificities of health care systems which is the human factor. This specificity makes this system complex, random and unpredictable. Besides, the approaches used in industrial or hospital environment, are mainly mathematical models and simulation approaches centered on one ore several resources categorized as critical. In that sense, it seemed judicious to choose a patient centered approach based on a multi-agent paradigm. We proposed a Reactive multi-agent control system of the patient flow in healthcare system. The proposed alternative is a patient centered approach allowing to minimize the patients waiting time and the length of their stay and consequently the care costs. The proposed approach also ensures the care quality and an optimal use of the hospital resources
Morge, Maxime. "Syst'eme dialectique multi-agents pour l'aide 'a la concertation." Phd thesis, Ecole Nationale Supérieure des Mines de Saint-Etienne, 2005. http://tel.archives-ouvertes.fr/tel-00797376.
Повний текст джерелаAbras, Shadi. "Système domotique multi-agents pour la gestion de l'énergie dans l'habitat." Grenoble INPG, 2009. http://www.theses.fr/2009INPG0049.
Повний текст джерелаReducing housing energy costs is a major challenge of the 21st century. In the near future, the main issue for civil engineering is the thermal insulation of buildings, but in the longer term, the issues are those of "renewable energy" (solar, wind, etc) and "smart buildings". This PhD thesis contributes to the design of intelligent buildings. A Multi-Agents Home Automation System (MAHAS) is proposed which controls appliances and energy consumption/production in buildings. The proposed MAHAS system is characterized by its openness, its scability and its capability to manage diversity. This system proposes a multi-level control architecture composed of three mechanisms : local, reactive, and anticipative. The results are compared to those obtained by a centralized system using algorithms coming from Operational Research
Chamekh, Fatma. "L’évolution du web de données basée sur un système multi-agents." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSE3083/document.
Повний текст джерелаIn this thesis, we investigate the evolution of RDF datasets from documents and LOD. We identify the following issues : the integration of new triples, the proposition of changes by taking into account the data quality and the management of differents versions.To handle with the complexity of the web of data evolution, we propose an agent based argumentation framework. We assume that the agent specifications could facilitate the process of RDF dataset evolution. The agent technology is one of the most useful solution to cope with a complex problem. The agents work as a team and are autonomous in the sense that they have the ability to decide themselves which goals they should adopt and how these goals should be acheived. The Agents use argumentation theory to reach a consensus about the best change alternative. Relatively to this goal, we propose an argumentation model based on the metric related to the intrinsic dimensions.To keep a record of all the occured modifications, we are focused on the ressource version. In the case of a collaborative environment, several conflicts could be generated. To manage those conflicts, we define rules.The exploited domain is general medecine
Buron, Cédric. "Un système multi-agents pour une place de marché de facture." Electronic Thesis or Diss., Sorbonne université, 2018. http://www.theses.fr/2018SORUS314.
Повний текст джерелаFor most companies, the time gap between the moment when they begin to spend money and the moment when they receive payment from their customer generates a working capital requirement. The latter may create issues such as contract lost or bankruptcy. In the current context, getting credits from banks may be either costly or even impossible for Small and Medium Enterprises. Indeed, many banks refuse to lend money for small companies or when they estimate that there is a risk. It is then possible to rely on other solutions as factoring and get immediate credit from the invoices. In this thesis, we propose a factoring marketplace based on related to curious agents that try to infer private information from their partners. This kind of behavior is harmful both for the agents and for the platform more generally. We thus propose to design a negotiation protocol resistant to such behavior by endowing the agents with an incentive to negotiate only when they really try to get a good. We then propose an automated negotiation agent which relies on Monte Carlo Tree Search techniques. Those techniques have proved to be quite efficient in AI for games. Our agent is able to learn information from its partner, though it is not its main objective in order to get to a beneficial agreement. For this purpose, it relies on opponent modeling techniques and machine learning such as Bayesian Learning and Gaussian Process Regression
Chatty, Abdelhak. "Apport du couplage entre dynamique d’apprentissage et propriétés collectives dans l’optimisation multi-contraintes par un système multi-agents et multi-robots." Thesis, Cergy-Pontoise, 2014. http://www.theses.fr/2014CERG0709.
Повний текст джерелаIn this work, we propose a self-organized system composed by agents-robots, controlled by a subsumption architecture with probabilistic local rules of deposits and taking. These agents-robots are able, thanks to the development of their cognitive abilities to create a cognitive map, to learn various goals' locations and to plan the return to these goals. Although formally the algorithm does not allow each agent to « mix or merge or optimize » several objectives, we show that the overall system is able to perform a multi-objective optimization. Specifically, the fusion of local learning with the accumulation of the individual decisions allows to emerge (i) structures in the environment and (ii) several dynamics such as specialization behavior or those that we can consider as « selfish » or « altruistic ». We show that the imitation strategy contributes to the improvement of the performance of our SMAC and our SMRC, namely the optimization of time to explore the various resources, the average planning time, the overall satisfaction level of agents and finally the the average time of convergence to a stable solution. Specifically, the addition of an imitation ability improves the construction of cognitive maps for each agent and stimulates the implicit sharing of informations in an unknown environment. Indeed, individual discoveries can affect the social level and therefore include learning new behaviors at the individual level. Finally, we compare the emergent properties of our SMAC with a mathematical model based on linear programming (LP). This evaluation shows the good performance of our SMAC which allows to obtain solutions close to the solution of the PL for a low cost of computation. In a final series of experiments, we study our aggregation system in a real environment. We set up a SMRC, composed by robots that are able to perform taking operations, deposits operations and refueling operations. We show through the first tests of aggregation that the results are promising
Soyez, Jean-Baptiste. "Conception et modélisation de systèmes de systèmes : une approche multi-agents multi-niveaux." Thesis, Lille 1, 2013. http://www.theses.fr/2013LIL10184/document.
Повний текст джерелаThe main problematic of this thesis, which takes place in the context of the european project InTraDE (Intelligent Transportation for Dynamic Environment), deals with the modeling of systems of systems (SoS). A SoS is a system composed of a hierarchy of autonomous systems present in several representation levels. This thesis answers the need of generic modeling tools respecting the fundamental characteristics of SoS, proposing a multi-level multi-agent formalism and algorithms wich insure their respect. The use of a multi-agent model allows to take advantage of the natural autonomy of agents and the multi-level aspect of our model permits to modeled entities to reason about the organisational hierarchy of the system, carrying the explicit notion of level. Besides the modeling of complex systems, this thesis also deals with the problematic related to their simulations, particularly, the fact that computer resources (used memory and microchips) needed to simulate with precision such systems are truly important. We propose a methodology to benefit from the muli-level simulations capacity to produce compromise between the simulation precision and the used computer resources
Laville, Guillaume. "Exécution efficace de systèmes Multi-Agents sur GPU." Thesis, Besançon, 2014. http://www.theses.fr/2014BESA2016/document.
Повний текст джерелаThese last years have seen the emergence of parallelism in many fields of computer science. This is explainedby the stagnation of the frequency of execution units at the hardware level and by the increasing usage ofparallel platforms at the software level. A form of parallelism is present in multi-agent systems, that facilitatethe description of complex systems as a collection of interacting entities. If the similarity between this softwareand this logical parallelism seems obvious, the parallelization process remains difficult in this case because ofthe numerous dependencies encountered in many multi-agent systems.In this thesis, we propose a common solution to facilitate the adaptation of these models on a parallel platformsuch as GPUs. Our library, MCMAS, provides access to two programming interface to facilitate this adaptation:a low-level layer providing direct access to OpenCL, MCM, and a high-level set of plugins not requiring anyGPU-related knowledge.We study the usage of this library on three existing multi-agent models : predator-prey,MIOR and Collembola. To prove the interest of the approach we present a performance study for each modeland an analysis of the various factors contributing to an efficient execution on GPUs. We finally conclude on aoverview of the work and results presented in the report and suggest future directions to enhance our solution
Nguyen, Vu Quang-Anh. "Cohérence et robustesse dans un système multiagent perturbé : application à un système décentralisé de collecte d’information distribué." Thesis, Lyon 1, 2012. http://www.theses.fr/2012LYO10232/document.
Повний текст джерелаThis thesis addresses the issue of maintaining information coherence and its robustness in a multiagent system, that collectively gathers information from distributed sources and where some sources may be defective (deliberately or not). In this context, the collective information gathered by the system is a progressive (possibly non-linear) aggregation of information collected individually by each agent. Therefore, each agent has direct information, collected by itself, and indirect information, obtained through communication with other agents. System coherence is defined by the compatibility of collected information about the explored environment and its actual information. System robustness is defined by the capability to maintain information coherence, despite the existence and increase of faulty agents within the system. To ensure the system coherence, this thesis proposes a trust model named TrustSets, allowing agents themselves to reason about collected information to ensure its consistency by using the calculation of the information reliability. Each agent maintains a trust network and can recognize direct (collected from the environment) and indirect (collected by exchanging information with other agents) information, not only in its stored data, but also in the data transmitted by agents it encounters. Then, the agents develop their own local and global communication strategies to ensure the system robustness against the effects of dissonance agents. To ensure the system robustness, we construct a multi-agent system which brings out dynamically strategies of movement and communication automatically adapted to the perturbation. For this purpose, we propose a self-organizational approach, based on a systemic view in which we consider a structural coupling between two levels: direct information gathering and communication. This mechanism acts as a guide for communicating and for limiting the propagation of dissonant information in the system. Consequently, it reduces the impact of dissonant information on the process of gathering information collectively. Various experiments were conducted as the part of a collaborative mapping application to show the interest of our approach
Slodzian, Aurélien. "Une méthodologie componentielle pour la modélisation de la coopération multi-agents." Paris 6, 1998. http://www.theses.fr/1998PA066624.
Повний текст джерелаRamos, Corchado Félix Francisco. "Une approche multi-agents pour le placement dynamique de requêtes dans les systèmes globaux." Compiègne, 1997. http://www.theses.fr/1997COMP1026.
Повний текст джерелаLahoud, Inaya. "Un système multi-agents pour la gestion des connaissances hétérogènes et distribuées." Phd thesis, Université de Technologie de Belfort-Montbeliard, 2013. http://tel.archives-ouvertes.fr/tel-00977758.
Повний текст джерелаKenfack, Dongmo Clauvice Viliane. "Un système multi-agents comme outil d'intermédiation pour les communautés de pratiques." Lyon 3, 2010. https://scd-resnum.univ-lyon3.fr/out/theses/2010_out_dongmo_c.pdf.
Повний текст джерелаIn this thesis, we propose to model an intermediation system based on agents to promote the knowledge emergence in communities of practice (CoPs). For that we use as a basis the concept of CoPs, emergence, intermediation, and the technology of multi-agent systems. The overall objective of the system is to promote cooperation between members sharing that knowledge. Interest is focused on cognitive agents, especially when they deal with issues of knowledge management. The multi-agent systems have intrinsic characteristics that require the establishment of a methodology incorporating both organizational facet than individual tools and enterprise technology (tools used by members belonging to the community) to propose methods of knowledge engineering based on conceptual cooperation models among agents adapted to the context. A theoretical approach to the concept of cooperation, and how it takes place within a community of practice, we distinguish a virtual community is discussed. Based on a needs analysis of future system from several case studies, we derive functional and technical specificity that be considered to implement the system. We have been led to explore how cognitive agents would approach the process of knowledge dissemination, sharing and exchange through technological devices used by members of the CoPs. Then subsequently we have identified several phases in the process development of our system. These phases start from the identification to the analysis leading to the conceptualization of the system. The heart of the work consisted, after identifying the need to specify the phase of analysis models to meet the needs of the system to develop. Thus, this phase includes the organizational model that combines the knowledge model and the role model and the model which includes the SMA model agent and the communication model. Ultimately, we came out on representation of a generic model based on an agent platform, which will be characterized by the introduction of several "intermediation agents" to ensure different levels, both the collaboration and cooperation between community members
Lewkovicz, Zach. "Modélisation et simulation du marché du travail avec un système multi-agents." Paris 6, 2010. http://www.theses.fr/2010PA066472.
Повний текст джерелаOlaru, Andrei. "Un système multi-agents sensible au contexte pour les environnements d'intelligence ambiante." Paris 6, 2011. http://www.theses.fr/2011PA066639.
Повний текст джерелаAyari, Iskander. "Fusion multi-capteurs dans un cadre multi-agents : application à un robot mobile." Nancy 1, 1996. http://www.theses.fr/1996NAN10001.
Повний текст джерелаDe, Azevedo Hilton. "Contribution à la modélisation des connaissances à l'aide des systèmes multi-agents." Compiègne, 1997. http://www.theses.fr/1997COMP1016.
Повний текст джерелаSohier, Christophe. "Pilotage des cellules adaptatives de production : apport des systèmes multi-agents." Cachan, Ecole normale supérieure, 1996. http://www.theses.fr/1996DENS0001.
Повний текст джерелаAtohoun, Béthel Christian A. R. K. "Architecture logique d'un système multi agents de suivi multi caméra distribué : exploitation du modèle de croyance transférable." Thesis, Littoral, 2013. http://www.theses.fr/2013DUNK0373/document.
Повний текст джерелаThis thesis presents the joint use of the theory of evidence and multiple hypothesis tracking for modeling and managing a system for monitoring multiple cameras in a motorway. The tracking is based on the re-identification of objects (vehicles) on the basis of visuals and times informations. A realization of these concepts results in the design and implementation of a software architecture for multiple agents management of multiple camera tracking system. After presenting the state of the art on the frameworks of uncertainty management and that on information fusion for the matching, and the multi-agent systems, our contribution in this work is on two or three levels. The first was an adaptation of the decision phase of the transferable belief model to incorporate the use of multi-hypotheses tracking as a tool of ambiguity survey in case of indecision in matching situation. The second contribution was a proposition of agent-based software architecture for management of a multiple cameras tracking system. We have proposed the global system modeling as well as agents and their interactions modeling using a personal analysis method but nevertheless inspired by modelisation languages and tolls such as Agent UML, MaSE and others, because there is not yet a standard and normalized tool on the subject. Our third contribution was to begin an implementation of our agent-based software architecture using JADE (Java Agent Development Framework). Some experiment and discussions are presented at the end to lead to our conclusions and perspectives
Isfoula, Fayrouz. "Une approche du suivi de consensus pour les systèmes multi-agents." Thesis, Poitiers, 2019. http://www.theses.fr/2019POIT2303.
Повний текст джерелаAn agent is an autonomous dynamics system that can coordinate with the environment as well as with other agents. A group of these autonomous agents working in coordination is called a Multi-agent system (MAS). A MAS has several advantages over single agent operation. The main objective of MAS is to achieve a complex goal which is hard to achieve by a single agent. In MAS, each agent shares its information (states) to the neighbors only to complete the task hence no centralized monitoring systems is required. We can define a multi-agent system as a network in which information is distributed. The interest of researchers in the study of distributed control and distributed coordination of autonomous agent networks is motivated by the fact that it has the ability to cope with the problems associated with centralized communication network and also allow the switching network topologies.The algorithms for distributed networks only use local information, and are robust to variations of network topology and can accommodate network with large size.One of the most studied problems in the field of MAS is the consensus, which can be defined as: for any initial conditions for all agent, what are the conditions that should hold in order that the agents agree on a common value asymptotically while only information is exchanged between neighboring agents.This thesis deals with the development of control law to achieve the consensus for fixed and switching topologies, with or without a leader (consensus tracking). It also investigates the problem of the quality of information in the network. In consensus tracking, the notion of perceptive leader is developed and a control law is proposed for a fixed and switching topology
Jin, Zhe Kun. "Système multi-agents appliqué à la navigation d'un robot mobile dans un environnement inconnu." Cachan, Ecole normale supérieure, 1997. http://www.theses.fr/1997DENS0008.
Повний текст джерелаSimonnot, Brigitte. "Modélisation multi-agents d'un système de recherche d'information multimédia à forte composante vidéo." Nancy 1, 1996. http://docnum.univ-lorraine.fr/public/SCD_T_1996_0017_SIMONNOT.pdf.
Повний текст джерелаIffenecker, Christophe. "Un système multi-agents pour le support des activités de conception de produtis." Paris 6, 1992. http://www.theses.fr/1992PA066513.
Повний текст джерелаKlaimi, Joelle. "Gestion multi-agents des smart grids intégrant un système de stockage : cas résidentiel." Thesis, Troyes, 2017. http://www.theses.fr/2017TROY0006/document.
Повний текст джерелаThis thesis focuses on the decentralized management using multi-agent systems of energy, including renewable energy sources, in the smart grid context. Our research aims to minimize consumers’ energy bills by answering two key challenges: (1) handle the problem of intermittency of renewable energy sources; (2) reduce energy losses. To overcome the problem of renewable resources intermittency and in order to minimize energy costs even during peak hours, we integrated an intelligent storage system. To this end, we propose many algorithms in order to use intelligent storage systems and multi-agent negotiation algorithm to reduce energy cost while maintaining a minimal discharge rate of the battery and minimal energy loss. The validation of our contributions has shown that our proposals respond to the identified challenges, including reducing the cost of energy for consumers, in comparison to the state of the art
Mazyad, Hanaa. "Une approche Multi-agents à Architecture P2P pour l'apprentissage collaboratif." Phd thesis, Université du Littoral Côte d'Opale, 2013. http://tel.archives-ouvertes.fr/tel-00845225.
Повний текст джерелаLattaud, Claude. "Approche adaptative de systèmes multi-agents dans un contexte vie artificielle." Paris 5, 1998. http://www.theses.fr/1998PA05S021.
Повний текст джерелаHamoui, Mohamad Fady. "Un système multi-agents à base de composants pour l’adaptation autonomique au contexte – Application à la domotique." Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20088/document.
Повний текст джерелаHome automation environments are ubiquitous environments where domestic devices, scattered throughout a home, provide services that can be used remotely over a network. Home automation systems are proposed to enable the users of controlling the devices according to their needs. Ideally, these systems orchestrate the execution of the services provided by the devices to achieve complex services. Even more, these systems must adapt to the variety of environments in terms of devices and users needs. They must also be able to adapt dynamically, if possible in an autonomous manner, to the changes of their execution context (appearance or disappearance of a device, changing needs).In this thesis, we provide an answer to this problematic with SAASHA, a multi-agent home automation system based on components. The combination of these two paradigms enables managing the adaptation on three levels: presentation (user interface), organization (system architecture) and behavior (internal architecture of agents). The agents perceive their context and its changes. The Users are offered a dynamic view of the context allowing them to define custom scenarios as rules. The agents divide the roles among them to realize the scenarios. They modify dynamically their internal architecture throughout the generation, deployment and assembly of components to adopt new device control behaviors and scenarios. The agents collaborate to execute the scenarios. In case of a change, these three levels of adaptation are updated dynamically and autonomously to maintain the service continuity. A SAASHA prototype, based on UPnP and OSGi industry standards, has been developed to assess the feasibility of our proposal