Literatura académica sobre el tema "Modèles multi-Groupes"
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Artículos de revistas sobre el tema "Modèles multi-Groupes"
Genoe, M. Rebecca, Toni Liechty y Hannah R. Marston. "Retirement Transitions among Baby Boomers: Findings from an Online Qualitative Study". Canadian Journal on Aging / La Revue canadienne du vieillissement 37, n.º 4 (30 de agosto de 2018): 450–63. http://dx.doi.org/10.1017/s0714980818000314.
Texto completoMerabet, Amina, Abderrezak Ben Habib y Abderrahmane Abedou. "Intention entrepreneuriale en Algérie : mise en évidence des différences entre hommes et femmes". les cahiers du cread 38, n.º 2 (8 de julio de 2022): 49–78. http://dx.doi.org/10.4314/cread.v38i2.3.
Texto completoPoirier, Martine, Diane Marcotte, Jacques Joly y Laurier Fortin. "Évaluation de la qualité de l’implantation du programme Pare-Chocs à l’école secondaire". Mosaïque 42, n.º 1 (14 de junio de 2017): 355–77. http://dx.doi.org/10.7202/1040259ar.
Texto completoLedent, Jacques. "Vers une projection des familles selon leurs caractéristiques principales". Articles 24, n.º 1 (25 de marzo de 2004): 3–33. http://dx.doi.org/10.7202/010180ar.
Texto completoLasserre, Jean-Claude. "Pour comprendre la stagnation et les mutations des trafics sur le Saint-Laurent : une évaluation comparée des portes continentales nord-américaines." Cahiers de géographie du Québec 43, n.º 118 (12 de abril de 2005): 7–42. http://dx.doi.org/10.7202/022786ar.
Texto completoAlphs, L., D. Hough, P. B. Ryan y P. E. Stang. "Étude comparant la subtitution de la rispéridone injectable à action prolongée par la palipéridone injectable à action prolongée versus une substitution par antipsychotiques oraux". European Psychiatry 29, S3 (noviembre de 2014): 658. http://dx.doi.org/10.1016/j.eurpsy.2014.09.038.
Texto completoRAULT, Charlotte, Aurélien AUDEVARD, Nicolas BASTIDE y Jean-Yves BARNAGAUD. "Dynamiques temporelles de la diversité taxonomique des Oiseaux d’eau sur un marais salant protégé". Naturae, n.º 18 (7 de diciembre de 2022). http://dx.doi.org/10.5852/naturae2022a18.
Texto completoBlasco-Lopez, Francisca, Nuria Recuero Virto, Joaquin Aldas Manzano y Daniela Cruz Delgado. "Le pouvoir de Facebook". Balisages, n.º 2 (12 de marzo de 2021). http://dx.doi.org/10.35562/balisages.499.
Texto completoLeviten-Reid, Catherine y Brett Fairbairn. "Multi-stakeholder Governance in Cooperative Organizations: Toward a New Framework for Research?" Canadian journal of nonprofit and social economy research 2, n.º 2 (28 de noviembre de 2011). http://dx.doi.org/10.22230/cjnser.2011v2n2a78.
Texto completoYokomitsu, Kengo y Eiichi Kamimura. "Factor structure and validation of the Japanese version of the Gambling Symptom Assessment Scale (GSAS-J)". Journal of Gambling Issues, n.º 41 (13 de febrero de 2019). http://dx.doi.org/10.4309/jgi.2019.41.1.
Texto completoTesis sobre el tema "Modèles multi-Groupes"
Yacheur, Souâd. "Modélisation et étude mathématique de la propagation d’une maladie vectorielle (paludisme) au sein d’une population". Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0311.
Texto completoThe main purpose of this thesis is to study a class of mathematical models describing some problems related to the infection by the Plasmodium falciparum parasite which causes malaria and whose vector is the mosquito.The work is divided into three main parts, the first part is related to the analysis of the spread of malaria in an isolated population. The global stability of the disease-free equilibrium is studied according to the different epidemiological parameters when the number of basic reproduction is lower than one. When this number is higher than one, the existence of a unique endemic equilibrium is proved. Inspired by the geometric approach introduced by Li and Muldowney, we provided a sufficient condition for this endemic equilibrium to be globally asymptotically stable.A state estimator was constructed to estimate the size of human populations based on the measurement of the number of newly infected humans per unit time. We also proposed two control strategies to eradicate the disease.Finally, to better understand the dynamics of the spread of the disease and to identify the most influential parameters, we have studied the local sensitivity of the number of basic reproduction with respect to each parameter.The second part is about the study of a model that describes the interaction and the spread of the disease within a human population that is divided into two subpopulations, local and non-local. The first subpopulation follows a linear growth while the non-local population follows a logistic growth among the first. We choose to study the impact of the migration of people from an endemic country to another country declared free of the disease or towards the eradication of the disease.Our analysis yielded conditions of the persistence of the disease, we studied the possibility of controlling the disease in a first step through the control of the carrying capacity, then we developed a method based on a matrix called matrix of vectorial transmission which was used to determine the link between the two subpopulations and the population of mosquitoes, according to the values of this matrix entries in order to ensure the control of the disease spread. In addition, a local and global sensitivity study of the level of local and non-local infection was performed to determine the most influential model input parameters.The last part is devoted to the study of the global dynamics of models with multiple subpopulations that are assumed to be weakly interconnected. Our work highlights a process that allows us to perform a complete analysis of many dynamical systems modeling the spread of a disease that involves different populations. The objective is to be able to determine the global stability of the disease-free equilibrium when the basic reproduction number is less than one as well as the global stability of the different types (interior or frontier) of endemic equilibria as a function of the different local basic reproduction numbers and the nature of the interconnections between the network components
Kuidjo, Kuidjo Emmanuel Vianney. "Towards a predictive model to reproduce flow regime transitions in gas-liquid flows with Neptune CFD : from a dispersed to a separated regime". Thesis, Aix-Marseille, 2019. http://www.theses.fr/2019AIXM0456.
Texto completoIn nuclear reactors, several regimes of gas-liquid flows may occur with some transitions between them. The main challenges associated with simulating these transitions in 3D CFD codes are associated with deformable interfaces of different sizes, accounting for coalescence and breakup interactions between gas structures and developing flow regime independent closure relations. This work aims at modelling and simulating the hydrodynamics of adiabatic gas-liquid flows thanks to a three-field two-fluid model in Neptune CFD. In a first step, a model with one continuous liquid field and two dispersed gas fields for small and large bubbles is used to simulate cap and churn flows with a void fraction up to 0.5 and a focus is put on the interfacial area prediction. In a second step, the second dispersed field is replaced by a hybrid continuous/dispersed field representing both large bubbles and continuous gas regions. The model is validated on several flow regimes in large diameter pipes and in confined rectangular channels
Hamze, Sandra. "Optimisation multi-objectifs inter-systèmes des groupes motopropulseurs". Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAT055.
Texto completoPowertrain systems optimization in modern automobiles relies on model-based systems engineering to cope with the complex automotive systems and challenging control design requirements. Two prerequisites for model-based powertrain optimization are the powertrain simulator and the control design, which ensures a desirable powertrain operation during driving cycles. This thesis revolves around these prerequisites and belongs to the model-in-the-loop phase of the control development lifecycle. It first aims at identifying control-oriented powertrain systems models, particularly linear black-box models because of the merits they present in terms of accessibility to linear control design and facility of integrating changes in the powertrain system technical definition. It also aims at identifying and controlling powertrain systems featuring transport time delay because integrating the delay in the model and control design is crucial on the former’s system representability and on the latter’s optimality. Based on these premises, we address the powertrain from the engine air-path perspective. We first identify a linear black-box state-space (SS) model of a gasoline engine air-path, using an identification algorithm based on subspace methods. Different model orders and algorithm parameters are tested and those yielding the best identification and validation results are made clear, which leads to an 85% time gain in future similar identifications. While this part considers the air-path as a whole, the rest of the work focuses on specific air-path components, notably the electric throttle (ET), the heat-exchanger, and the exhaust gas recirculation (EGR). Regarding the ET, we inspire from the physical laws governing the throttle functioning to construct a linear-parameter-varying (LPV) mathematical SS model, which serves to set the regression vector structure of the LPV black-box ARX model, which is representative of an ET test bench and reflects its nonlinearities and discontinuities as it varies from one functioning zone to another. To address the questions of heat and mass transport time delays in the engine air-path, we refer to the heat exchanger and the EGR respectively. Recasting the infinite-dimensional hyperbolic partial differential equations (PDEs) describing these transport phenomena as a time-delay system facilitates the adjoint system identification and control design. To that end, a space-averaging technique and the method of characteristics are used to decouple the hyperbolic PDEs describing the advective flows in a heat exchanger, and to reformulate them as a time-delay system. Reducing the error between the output temperature of the model and that of a heat exchanger test-bench is what seeks the gradient-descent method used to identify the parameters of the time-delay system, which surpasses the PDEs in terms of identification accuracy and computational efficiency. On the other hand, the EGR is addressed from a control-oriented perspective, and the PDEs describing the mass transport phenomenon in its tubular structure are recast as a SS system subject to output delay. To regulate the burned gas ratio in the intake gas, the amount of recirculated gas is controlled using two indirect optimal control approaches, taking into account the model’s infinite-dimensional nature and accompanied with the Augmented Lagrangian Uzawa method to guarantee the respect of the input and state constraints, thus resulting in a controller of superior performance than the initially existing PID. In general, this thesis is located half-way between the academic and the industrial sectors. By evaluating the eligibility of integrating existing system identification and control theories in real automotive applications, it highlights the merits and demerits of these theories and opens up new prospects in the domain of model-based powertrain systems optimization
Theurer, Wolfgang. "Une méthodologie de modélisation multi-modèles distribuée par métier pour les systèmes embarqués". Toulouse, ENSAE, 2006. https://tel.archives-ouvertes.fr/tel-00541784.
Texto completoBaugé, Florie-Anne. "Approche géométrique multi-symplectique pour la synthèse sonore par modèles physiques dans les environnements virtuels 3D interactifs". Electronic Thesis or Diss., Paris 6, 2015. http://www.theses.fr/2015PA066759.
Texto completoPas de résumé en anglais
Callebert, Lucile. "Activités collaboratives et génération de comportements d'agents : moteur décisionnel s'appuyant sur un modèle de confiance". Thesis, Compiègne, 2016. http://www.theses.fr/2016COMP2299/document.
Texto completoWhen working in teams, humans rarely display optimal behaviors: they sometimes make mistakes, lack motivation or competence. In virtual environments or in multi-agent systems, many studies have tried to reproduce human teamwork: each agent acts as a team member. However, the main objective in those studies is the performance of the team: each agent should display optimal behavior, and the realism of those simulated behaviors is not a concern. To train someone in a virtual environment to pay attention to and to adapt to their teammates, we built a decision-making system for agents to display realistic and non-optimal behaviors. More specifically, we are interested in self-organized teams (i.e. teams where the decision power is decentralized among its members) and in implicit organization (i.e. when team members do not interact through communications but rather through the observation of others’ behaviors). In such a team, each agent has to think about what it should do given what others could do. Agents then have to ask themselves questions such as Do I trust my teammate’s competence to perform this task? Trust relationships therefore allow agents to take others into account. We propose a system that allows agents to reason, on the first hand, on models of the activity they have to do, and on the other hand, on trust relationships they share with others. In that context, we first augmented the Activity-Description Language so that it supports the description of collective activities. We also defined mechanisms for constraint generation that facilitates agent reasoning, by giving them the answer to questions like Do we have the required abilities to perform the task which will achieve our goal? We then proposed an agent model based on the model of interpersonal trust of Mayer et al. (1995) that we selected after a study of trust in social science. This model describes trust relationship with three dimensions: the trustor trusts the trustee’s integrity, benevolence and abilities. An agent is therefore defined through those three dimensions, and has a mental model of each other agent; i.e. has trust beliefs about others’ integrity, benevolence and abilities. Moreover each agent has both personal and collective goals (i.e. goals that are shared with other members of the team), and thus will have to decide which goal to focus on. Finally we proposed a decision-making system that allows an agent to compute the importance it gives to its goals and then to select a task. When computing goal importance, the agent is influenced by its trust beliefs about others, and to select a task, it reasons on the activity models and on its expectations about what others could do. Those expectations are generated from the agents’ trust beliefs. We implemented our system and observed that it produces realistic and non-optimal behaviors. We also conducted a preliminary perceptive evaluation which showed that participants were able to recognize one agent’s trust or lack of trust in another through the behaviors of the first one
Bennis, Mohammed. "Un Modèle multiphasique pour le calcul des ouvrages renforcés par inclusions, avec prise en compte de l'interaction matrice-inclusions". Marne-la-vallée, ENPC, 2002. http://www.theses.fr/2002ENPC0221.
Texto completoGarcia, Thomas. "Déterminants évolutionnistes de la socialité : le rôle de la formation de groupe". Phd thesis, Université Pierre et Marie Curie - Paris VI, 2013. http://tel.archives-ouvertes.fr/tel-01018209.
Texto completoInformes sobre el tema "Modèles multi-Groupes"
Introduction aux modèles multi-niveaux avec SPSS. Instats Inc., 2023. http://dx.doi.org/10.61700/zso05tsbfzey1469.
Texto completoIntroduction aux modèles multi-niveaux avec SPSS. Instats Inc., 2023. http://dx.doi.org/10.61700/nf9h0jhj185vz469.
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