Dissertations / Theses on the topic 'Basé sur la route'
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Lahlou, Omar. "Routage multi-chemin basé sur la fiabilité des routes dans les réseaux mobiles Ad Hoc." Mémoire, Université de Sherbrooke, 2005. http://savoirs.usherbrooke.ca/handle/11143/1286.
Full textNguyen, Duy Tuyen. "Approach for a Global Route-Based Energy Management System forElectric Vehicles with a Hybrid Energy Storage System." Electronic Thesis or Diss., Bourgogne Franche-Comté, 2023. http://www.theses.fr/2023UBFCA014.
Full textBoth research and development in the area of electric cars have started putting a greater focus on the use of batteries and supercapacitors. A combined battery and supercapacitor system has the potential to be advantageous as a result of the complimentary benefits that are offered by the two systems, which include high energy density and high power density. An intelligent energy management system, also referred to as an EMS, is required in order to make full use of the capabilities offered by a hybrid energy storage system (HESS). The Electrical Management System (EMS) is in charge of directing the flow of electrical power between the battery and the supercapacitor in order to ensure that the necessary power can be properly distributed at all times (both currently and in the future). This function ensures that the needed power can be optimally distributed. In order to achieve this goal, the energy management system makes use of information on the driving route, then, on the basis of this information, it ought to calculate a global strategy for the continuous distribution of power. The regulated distribution of energy should take place in real time and be resistant to inconsistencies, so that unpredictability or unreliability in the prediction of upcoming events does not severely impact the functioning. In order to put the idea into practice, a rule-based power distribution and a predictive energy management system are both put in work. In this case, energy management is coupled with the calculation of a rule-based approach based on data about the route that is to be driven alongside with a global optimization for the objective of producing a route-specific strategy. The performance of the power control may be optimized in such a way that it maximizes, for example, the increase in energy efficiency or the lifespan of the battery. Because of the separation of functions, the continuous power control is able to operate in real time, while the calculations of the power management strategy can take more computing time and, as a result, do not have to be carried out in real time. This frees up the continuous power control to work as intended.In a next step, the presented approach was taken and extended by a route discretization. The objective is to segment the route to be driven into corresponding sections considering the condition in terms of power requirements and to generate an operating strategy that takes into account the different requirements of the individual route sections in the form of section strategies, so that an improvement in efficiency can be achieved compared to the previous energy management system.The findings indicate that a considerable impact on the energy efficiency and/or battery lifespan can be obtained by using the proposed EMS
Geraudie, Vincent. "Système d'aide à la conduite des procédés viticoles et oenologiques, basé sur l'utilisation d'un capteur piéton de suivi de maturité." Montpellier SupAgro, 2009. http://www.theses.fr/2009NSAM0025.
Full textMykhailenko, Hlib. "Partitionnement réparti basé sur les sommets." Thesis, Université Côte d'Azur (ComUE), 2017. http://www.theses.fr/2017AZUR4042/document.
Full textIn distributed graph computation, graph partitioning is an important preliminary step because the computation time can significantly depend on how the graph has been split among the different executors. In this thesis we explore the graph partitioning problem. Recently, edge partitioning approach has been advocated as a better approach to process graphs with a power-law degree distribution, which are very common in real-world datasets. That is why we focus on edge partition- ing approach. We start by an overview of existing metrics, to evaluate the quality of the graph partitioning. We briefly study existing graph processing systems: Hadoop, Giraph, Giraph++, Distributed GrahpLab, and PowerGraph with their key features. Next, we compare them to Spark, a popular big-data processing framework with its graph processing APIs — GraphX. We provide an overview of existing edge partitioning algorithms and introduce partitioner classification. We conclude that, based only on published work, it is not possible to draw a clear conclusion about the relative performances of these partitioners. For this reason, we have experimentally compared all the edge partitioners currently avail- able for GraphX. Results suggest that Hybrid-Cut partitioner provides the best performance. We then study how it is possible to evaluate the quality of a parti- tion before running a computation. To this purpose, we carry experiments with GraphX and we perform an accurate statistical analysis using a linear regression model. Our experimental results show that communication metrics like vertex-cut and communication cost are effective predictors in most of the cases. Finally, we propose a framework for distributed edge partitioning based on distributed simulated annealing which can be used to optimize a large family of partitioning metrics. We provide sufficient conditions for convergence to the optimum and discuss which metrics can be efficiently optimized in a distributed way. We implemented our framework with GraphX and performed a comparison with JA-BE-JA-VC, a state-of-the-art partitioner that inspired our approach. We show that our approach can provide significant improvements
Knotek, Michal. "Diagnostic de fautes basé sur l'analyse temporelle." Phd thesis, Université Joseph Fourier (Grenoble), 2006. http://tel.archives-ouvertes.fr/tel-00110429.
Full textun rôle primordial dans l'amélioration de la disponibilité opérationnel le
des équipements. Dans les systèmes industriels, une part importante
(jusqu'à 80%) est consacrée à la maintenance, test et diagnostic. Pour
des systèmes complexes, la résolution des problèmes liés au diagnostic
et d'une manière générale de la supervision nécessite la mise en oeu-
vre d'une approche générique. Le diagnostic concerne les deux phases
indissociables de détection et de localisation. Dans cette thèse nous
proposons une approche dynamique de diagnostic pour les systèmes à
événements discrets. L'approche proposée basée sur l'exploitation du
temps, est applicable à tout système dont l'évolution dynamique dépend
non seulement de l'ordre des événements discrets mais aussi de la durée
des tâches associées comme pour les processus de communication ou les
processus batch. Dans cette thèse, le diagnostic des fautes est réalisé
grâce à l'implémentation d'un modèle basé sur l'utilisation des auto-
mates temporisés. L'objectif est de concevoir un observateur pour un
système donné, qui permet de détecter et localiser les éventuel les dé-
fail lances du procédé. Cet observateur est appelé “diagnoser”. Une
défail lance est constatée lorsque le séquencement temporel en sortie est
incorrect. Nous présentons donc les différentes étapes de la démarche
de diagnostic : la construction du diagnoser, la vérification du modèle
ainsi qu'une l'application de la démarche sur un exemple réel avec son
extension aux systèmes hybrides.
Feliachi, Abderrahmane. "Test basé sur la sémantique pour Circus." Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00821836.
Full textGarcia, Emmanuel. "Tatouage d'objets 3D basé sur la texture." Nice, 2004. http://www.theses.fr/2004NICE4025.
Full textThe goal of all current 3D object watermarking algorithms is to protect either the computer data representing an object's geometry or the intrinsic shape of a 3D object. Observing that these methods cannot protect the use of 3D objects in terms of visual representation, we propose a completely different approach, based on the texture of 3D objects. The idea is to watermark the texture of a 3D object and then be able to retrieve the watermark from any 2D representation of the object. This method works by reconstructing the object's texture from a given 2D view of it. For this, the rendering parameters must be known or estimated. After evaluating our algorithm in a controlled environment we thus propose a projective registration algorithm allowing us to accurately estimate the perspective projection used to produce a given 2D view. The last part of this thesis presents an algorithm for hiding the geometry of a 3D object into its texture image. The originality of this data-hiding algorithm is that the hidden information is intimately linked to the host information. We want to preserve this link of spatial coherence as well as ensure that the retrieved data degrades progressively when the host information is degraded. This is achieved through a spatio-frequential representation of geometry and texture, which are both represented as a function of cylindrical coordinates
Ma, Tai-Yu. "Modèle dynamique de transport basé sur les activités." Phd thesis, Ecole des Ponts ParisTech, 2007. http://pastel.archives-ouvertes.fr/pastel-00003309.
Full textSilveira, Netto Nunes Maria Augusta. "Système de Recommendation basé sur Traits de Personnalité." Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2008. http://tel.archives-ouvertes.fr/tel-00348370.
Full textChihaoui, Takwa. "Système d'identification de personnes basé sur la rétine." Thesis, Paris Est, 2018. http://www.theses.fr/2018PESC1145/document.
Full textOur work is part of the retina biometrics. The retina is the sensory layer of the eye; it has a rich and unique texture even in twins. Its properties have made the retina biometrics an active research area. Indeed, numerous methods have been proposed for the various stages of the biometric method, from pretreatment of the retinal image to its analysis, through its characterization, in order to identify and authenticate an individual. We are interested in this work in these thesis works, the study, design, development and evaluation of a new biometric method based on the retina. This thesis presents our contributions for each stage of the proposed biometric method. Our first contribution lies in the proposition of a healthy and pathological retinal image analysis method, followed by a selection of a region of interest around the optical disc. This method improves the quality of the retinal image and extracts a more stable region of interest from the retina to maintain a satisfactory information density, to ensure a better quality of recognition. Our second contribution consists in proposing a new method for extracting local characteristics based on the standard SIFT descriptor. It applies a new method based on the removal of non-informative points of interest extracted by the standard SIFT descriptor. This new method of extracting local features reduces the number of redundant points of interest while maintaining the quality of the description. We validated, the proposed biometric method on different bases including healthy and pathological images. This biometric method has yielded encouraging results on healthy and pathological retinal images. The results obtained show encouraging performances. These results indicate that the method we have proposed, correctly locates the retinal region of interest. In identification mode, a correct identification rate of approximately 99.8% is reached. In verification mode, we obtained 0.12% as FRR error rate and 0% for the FAR and EER error rates. The comparative study showed that our method is more discriminative than other state-of-the-art methods, especially those based on segmentation and extraction of the vascular tree
Ngo, Ba Hung. "Système de fichiers sémantique basé sur le contexte." Evry, Institut national des télécommunications, 2009. http://www.theses.fr/2009TELE0008.
Full textOrganizing the information that we call personal files such as files in a home directory, web pages found on the Internet, images, emails for later revisiting is currently required by many computer users. Several information retrieval models are proposed to fullfil this requirement. Each model is characterized by the types of personal files, their organization and the searching method used. Traditional file systems let a user organize his files into a directory tree and retrieve them later by browsing the directory tree. Desktop seach tools such as Google Desktop or Beagle automatically index file properties and file content (keywords) to provide the user with file retrieval by querying on file properties or on file content. Semantic file systems propose a searching method that combines querying with browsing to give to the users the advantages of both searching methods. For informations on the Internet, tagging systems are more and more used to facilitate the re-finding of these Internet ressources. Among personal file characteristics (properties, content, context) exploited by the above retrieval models, the working context of the user has been proved to be relevant to help a user to successfully retrieve his personal files. This work proposes a model for personal file retrieval, called « context-based model for personal file retrieval ». Our model allows a user to associate his personal files with a working context using tags. To retrieve a personal file, the user must describe the working context corresponding to each file. The searching method in our model gives to the users the advantages of both searching methods: browsing and querying. We develop our model by improving traditional tagging models. Based on tag relationships and popularities, we organize tags created by a user into a directed acyclic graph (DAGoT). This DAGoT is used as the basic data model to realize our context-based model for personal file retrieval. We use this graph to recognize working contexts associated to personal files, guide a user to reconstruct his working contexts, refine the searching requests, and retrieve personal files by context
Ma, Ta-Yu. "Modèle dynamique de transport basé sur les activités." Marne-la-vallée, ENPC, 2007. https://pastel.archives-ouvertes.fr/pastel-00003309.
Full textLeborgne, Aurélie. "Appariement de formes basé sur une squelettisation hiérarchique." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI075/document.
Full textThe works performed during this thesis focuses on the matching of planar shapes based on a hierarchical skeletonisation. First, we approached the creation of a shape skeleton using an algorithm combining the tools of discrete geometry and filters. This combination allows to acquire a skeleton gathering the desired properties in the context of matching. Nevertheless, the resulting skeleton remains a representation of the shape, which does not differentiate branches representing the general shape of those coming from a detail of the shape. But when matching, it seems more interesting to pair branches of the same order of importance, but also to give more weight to associations describing an overall appearance of shapes. Our second contribution focuses on solving this problem. It concerns the prioritization of skeletal branches, previously created by assigning a weight reflecting their importance in shape. To this end, we gradually smooth a shape and study the persistence of branches to assign a weight. The final step is to match the shapes with their hierarchical skeleton modeled as a hypergraph. In other words, we associate the branches two by two to determine a dissimilarity measure between two shapes. To do this, we take into account the geometry of the shapes, the relative position of different parts of the shapes and their importance
Zerioul, Lounis. "Modélisation comportementale d'un réseau sur puce basé sur des interconnexions RF." Thesis, Cergy-Pontoise, 2015. http://www.theses.fr/2015CERG0776/document.
Full textThe development of multiprocessor systems integrated on chip (MPSoC) respondsto the growing need for intensive computation systems. However, the evolutionof their performances is hampered by their communication networks on chip(NoC) due to their energy consumption and delay. It is in this context that the wired RF network on chip (RFNoC) was emerged. In order to better manage and optimize the design of an RFNoC, it is necessary to develop a simulation platform adressing both analog and digital circuits.First, a time domaine simulation of an RFNoC with components whose modelsare ideal is used to optimize the allocation of the available spectrum resources. Where appropriate, we provide solutions to improve the quality of transmitted signal. Secondly, we have developed, in VHDL-AMS, behavioral and accurate models of all RFNoC components. The models of the low noise amplifier (LNA) and the mixer take into account the parameters for the amplification, nonlinearities, noise and bandwidth. The model of the local oscillator considers the conventional parameters, including its phase noise. Concerning the transmission line, an accurate frequency model, including the skin effect is adapted for time domaine simulations. Then, the impact of component parameters on RFNoC performances is evaluatedto anticipate constraints of the RFNoC design
Berkani, Mohammed. "Le calcul fonctionnel basé sur la transformée de Fourier." Doctoral thesis, Universite Libre de Bruxelles, 1989. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/213274.
Full textZiani, Mehdi. "Descripteur de forme basé sur la théorie de Morse." Mémoire, Université de Sherbrooke, 2011. http://savoirs.usherbrooke.ca/handle/11143/4933.
Full textCardot, Anaïs. "Rejeu basé sur des règles de transformation de graphes." Thesis, Poitiers, 2019. http://www.theses.fr/2019POIT2254.
Full textIn many modelling fields, such as architecture, archaeology or CAD, performing many variations of the same model is an expanding need. But building all those variations manually takes time. It is therefore needed to use automatic technics to revaluate some parts of a model, or even an entire model, after the user specifies the modifications. Most of the existing approaches dedicated to revaluating models are based on a system called parametric modelling. It is made of two parts, a geometric model and a parametric specification, which allows to record the series of operation that created the model, and the different parameters of those operations. This way, the user can change some parameters, or edit the list of operations to modify the model. To do so, we use a system called persistent naming, introduced during the 90ies, that allows us to identify and match the entities of an initial specification and the ones of a revaluated specification. In this thesis, our goal is to propose a persistent naming system that would be general, homogeneous and that would allow the user to edit a parametric specification (which means move, add, or delete some operations). We base our system on the Jerboa library, which uses graph transformation rules. This way, we will be able to use those rules to create our naming system, while also linking the notions of graph transformation rules and parametric specification. We will then describe how to use our naming method to revaluate or edit parametric specifications. Finally, we will compare our method with the other ones from the literature
Nguyen, Dai Tho. "Routage basé sur des agents mobiles à déplacement aléatoire." Compiègne, 2000. http://www.theses.fr/2000COMP1295.
Full textThe present thesis is about the design and performance analysis of distributed algorithms. More precisely, we are interested in embedding the mobile agent paradigm and the random walk model in designing distributed shortest path routing algorithms. We work out two randomized algorithms, one relying on independent agents, and the other on cooperative agents. Both of them are particularly suited for wireless mobile networks, but at different degrees. The size of the cooperative agents is bigger than that of independent agents. Ln exchange, we show that the agent cooperation improves the system performance when dealing with topology and link cost changes
Aussibal, Julien. "Rsids : un IDS distribué basé sur le framework CVSS." Pau, 2009. http://www.theses.fr/2009PAUU3044.
Full textIntrusion detection is a method that ensures the availability concept in systems and computer networks. This availability is generally undermined by various anomalies. These anomalies can be caused either legitimately unintended result has operations working on these systems (broken link, traffic, or. . . ), so illegitimate with malicious operations designed to undermine the availability of these systems. The implementation of these various anomalies detection tools, such as IDS (Intrusion Detection System), contribute to early identification of these anomalies and to block them. This thesis has enabled us to develop a new generation platform to generate legitimate and illegitimate anomalies. This work was carried out under the project METROSEC. This platform has enabled us to obtain various traffic captures containing these anomalies. The various illegimitate anomalies were performed with classic tools to make Denial of Service like TFN2k or Trinoo. Legitimate Anormalies were also conducted with flash crowd phenomenon. All these catch real traffic were used in further research on intrusion detection for the evaluation of new methods of detection. In a second part, the implementation of a new detection tool seems necessary to improve the quality of detection of these anomalies. This new distributed IDS, called RSIDS (Risk Scored Intrusion Detection System), will retrieve the results of a multitude of heterogeneous probes. The use of probes will remove the risk of false alarms. Indeed, a probe is not able to detect all anomalies that occur on a system or network. Each alert provided by its probes will be evaluated according to their degree of dangerousness. The assessment of dangerousness based on the framework CVSS (Common Vulnerability Scoring System)
Yu, Shaohua. "Optimization models and methods for tour planning in smart urban logistics." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPAST045.
Full textUrban distribution refers to the distribution activities of goods serving urban areas and suburbs. Recent technological advances in unmanned distribution field, as well as new regulations limiting the use of combustion engine vehicles, will significantly change urban goods distribution. Besides, the new ecommerce business model also brings new opportunities and challenges to urban goods distribution. This thesis focuses on a novel distribution system to provide better services for urban logistics distribution. We first study a van-based robot urban delivery system and allow a van can carry multiple robot to make the distribution system more flexible. Then we incorporate en-route charging, and reverse charging technology into the van-based robot urban delivery system in logistics operations, to effectively use the time during which electric vans are carrying robots to recharge the robots, thereby increasing distribution systems’ efficiency. Finally, we incorporate hybrid pickup and delivery operations into the van-based robot urban distribution system to adapt to the new business model of e-commerce enterprises
Lopez, Roxane. "D' un système de management de la qualité basé sur l'amélioration à un système de management de la qualité basé sur les connaissances." Grenoble INPG, 2006. http://www.theses.fr/2006INPG0006.
Full textNowadays companies are facing an often-cited increase of their environmental complexity and dynamics that result in the necessity to cope with constant changes in their environment. Ln such circumstances it is a challenge for a company to continuously improve the efficiency of its activities. Knowledge and quality management aim this same goal. The hypothesis of this PhD is that the efficiency of the quality management system cou Id be improved by the creation of new knowledge. 50 this work focused on a case study which took piacE in an Alcan electro-metallurgy plant during four years and involved seven hundred employees. This plant has got the ISO 9001 standard since 1995 and we succeeded in using the quality synergies in order to create new knowledge thanks to a specific process. The aim of this process is to allow employees to suggest and experiment their own improvement ideas to solve daily problems. This new process allowed the suggestion of 600 new ideas, and 152 experimented ideas with a measurable added value. A critical study of the process entailed us to propose improvements
Andriamasinoro, Fenintsoa. "Proposition d'un modèle d'agents hybrides basé sur la motivation naturelle." Phd thesis, Université de la Réunion, 2003. http://tel.archives-ouvertes.fr/tel-00474542.
Full textBrini, Asma Hedia. "Un modèle de recherche d'information basé sur les réseaux possibilistes." Toulouse 3, 2005. http://www.theses.fr/2005TOU30224.
Full textWe propose an approach to Information Retrieval (IR) where relevance is flexible. The model is based on possibilistic networks where documents, index terms and query are binary variables and arcs are quantified in the theory of possibility framework. This model should provide proposition like : (i) it is plausible to a certain degree that the document is relevant ; (ii) it is necessary that the document is relevant given the query. The first kind of answer is meant to eliminate irrelevant documents (weak plausibility). The second answer focuses attention on what looks very relevant. Besides, we proposed three new discriminant factors that penalise documents not containing query important terms. These factors can be adaptable to any existing models. The results obtained show the effectiveness of our approach
Raad, Hussein. "Modélisation d'un système hypermédia adaptatif basé sur la règle active." Pau, 2002. http://www.theses.fr/2002PAUU1015.
Full textSaade, Mahmoud. "Etude du raisonnement temporel basé sur la résolution de contraintes." Artois, 2008. http://www.theses.fr/2008ARTO0409.
Full textRepresenting and reasoning about temporal and spatial information is a very important task in many applications of artificial intelligence. In the past two decades, several formalisms have been proposed for representing and reasoning about time and space by using qualitative constraint. In this thesis, we introduce and study a general definition of such formalisms considering qualitative formalisms based on basic relations of arbitrary arity. We also study the algorithms and heuristics proposed in the domain. We introduce two new notions the eligible constraints and the frozen constraints. We propose some new algorithms taking advantage of them. We compare in an empirical way our new algorithms to the previous ones. We describe our solver called QAT (for Qualitative Algebra Toolkit) which is a JAVA constraint programming library allowing to handle qualitative formalisms and constraint networks based on them. This solver is generic and it handles qualitative formalisms of any arity. We have implemented and integrated in QAT a number of specific modules about the notions proposed in this thesis
Lestiennes, Grégory. "Contributions au test de logiciel basé sur des spécifications formelles." Paris 11, 2005. http://www.theses.fr/2005PA112164.
Full textIn this thesis, we get interested in conformance testing whose goal is to check that the implementation of a system conforms to its specification w. R. T. A conformance relation between the model of the specification and the one of the implementation. We have defined the RIOLTS model standing for Restrictive Input/Output Labeled Transition System and the conformance relation rioco standing for Restrictive Input/Output COnformance. The particularity of this model is that it makes it possible to describe systems in which some inputs are forbidden in some states. In the second part of this thesis, we have worked on test generation and selection from infinite models using complex data types. These models are called symbolic models. Complex data types makes it harder the test selection problem: we must not only deal with the possible unlimited number of behaviors of systems but also with the unlimited number of values possible for the symbols appearing in symbolic actions. Moreover as guards may condition transitions, some symbolic traces are unfeasible. We propose a selection strategy that can be applied on any model based on symbolic transition systems. We use a constraint solver to determine feasible paths of the specification automata. Such paths are difficult to calculate, and to get them faster, we have had to optimize the use of the solver. Though, we have proposed and carried out experiments on many methods to reduce solving time and ensure the termination of calculations
Rabeau, Sophie. "Étude d'un procédé continu de microencapsulation basé sur un micromélangeur." Thesis, Vandoeuvre-les-Nancy, INPL, 2009. http://www.theses.fr/2009INPL096N/document.
Full textThis study focuses on the influence of the hydrodynamic and mixing conditions on the characteristics of microcapsules obtained by inversion/precipitation. This process is classically run in semi-batch stirred tank while it has been shown that the performance of chemical product manufacturing processes can be improved by using microtechnologies due to better hydrodynamic control and intensification of mass and heat exchanges. Therefore, in order to evaluate the potential benefit of these new technologies, microcapsules of perfume in PMMA have been manufactured by phase inversion/precipitation (system THF/Water) in a classical semi-batch stirred tank, in a structured mixer and in a V-Type micromixer (FZK). The three process is evaluated in term of capsules properties (size distribution, membrane thickness, encapsulation efficiency and release rate). It is shown that micromixer offers a wide range of operating conditions
Samih, Hamza. "Test basé sur les modèles appliqué aux lignes de produits." Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S109/document.
Full textSoftware product line engineering is an approach that supports developing products in family. These products are described by common and variable features. Currently, the validation activity is disjointed from the product lines development process. The effort and resources provided in the test campaigns for each product can be optimized in the context of product lines. Model-based testing is a technique for automatically generating a suite of test cases from requirements. In this thesis report, we present an approach to test a software product line with model-based testing. This technique is based on an algorithm that establishes the relationship between the variability model released with OVM and the test model, using traceability of functional requirements present in both formalisms. Our contribution is an algorithm that automatically extracts a product test model. It is illustrated with a real industrial case of automotive dashboards and experimented by an industrial of aeronautic domain in the MBAT European project context
Duculty, Florent. "Suivi automatique d'objets 3D basé sur l'apparence dans des séquences d'images." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2003. http://tel.archives-ouvertes.fr/tel-00610720.
Full textHabbas, Zineb. "Une algèbre de processus : pour un calcul basé sur la déduction." Phd thesis, Grenoble INPG, 1992. http://tel.archives-ouvertes.fr/tel-00342054.
Full textTruong, Hien Thi Thu. "Un modèle de collaboration basé sur les contrats et la confiance." Phd thesis, Université de Lorraine, 2012. http://tel.archives-ouvertes.fr/tel-00769076.
Full textGénevé, Lionel. "Système de déploiement d'un robot mobile autonome basé sur des balises." Thesis, Strasbourg, 2017. http://www.theses.fr/2017STRAD024/document.
Full textThis thesis is part of a project which aims at developing an autonomous mobile robot able to perform specific tasks in a preset area. To ease the setup of the system, radio-frequency beacons providing range measurements with respect to the robot are set up beforehand on the borders of the robot’s workspace. The system deployment consists in two steps, one for learning the environment, then a second, where the robot executes its tasks autonomously. These two steps require to solve the localization and simultaneous localization and mapping problems for which several solutions are proposed and tested in simulation and on real datasets. Moreover, to ease the setup and improve the system performances, a beacon placement algorithm is presented and tested in simulation in order to validate in particular the improvement of the localization performances
Lefebvre, Pierre-Luc. "Conception, simulation et réalisation d'un égaliseur fréquentiel basé sur l'algorithme FBLMS." Mémoire, École de technologie supérieure, 2006. http://espace.etsmtl.ca/540/1/LEFEBVRE_Pierre%2DLuc.pdf.
Full textSalameh, Nadeen. "Conception d'un système d'alerte embarqué basé sur les communications entre véhicules." Phd thesis, INSA de Rouen, 2011. http://tel.archives-ouvertes.fr/tel-00722227.
Full textEl, Ouakdi Jihene. "Le système d'incitation basé sur la valeur économique ajoutée : analyses empiriques." Thesis, Université Laval, 2007. http://www.theses.ulaval.ca/2007/24171/24171.pdf.
Full textDelgrange, Clément. "Apprentissage basé sur l’usage en interaction humaine avec un assistant adaptatif." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1290/document.
Full textToday users can interact with popular virtual assistants such as Siri to accomplish their tasks on a digital environment. In these systems, links between natural language requests and their concrete realizations are specified at the conception phase. A more adaptive approach would be to allow the user to provide natural language instructions or demonstrations when a task is unknown by the assistant. An adaptive solution should allow the virtual assistant to operate a much larger digital environment composed of multiple application domains and providers and better match user needs. We have previously developed robotic systems, inspired by human language developmental studies, that provide such a usage-based adaptive capacity. Here we extend this approach to human interaction with a virtual assistant that can first learn the mapping between verbal commands and basic action semantics of a specific domain. Then, it can learn higher level mapping by combining previously learned procedural knowledge in interaction with the user. The flexibility of the system is demonstrated as the virtual assistant can learn actions in a new domains (Email, Wikipedia,...), and can then learn how email and Wikipedia basic procedures can be combined to form hybrid procedural knowledge
Lavoie, Marc-André. "Développement et contrôle d'un bras robotique basé sur l'actionneur différentiel élastique." Mémoire, Université de Sherbrooke, 2009. http://savoirs.usherbrooke.ca/handle/11143/1494.
Full textBergeron, Lucien Junior. "Développement d'un système d'inactivation de gènes basé sur le ribozyme delta." Thèse, Université de Sherbrooke, 2005. http://savoirs.usherbrooke.ca/handle/11143/4201.
Full textPadioleau, Yoann. "Logic file system : un système de fichier basé sur la logique." Rennes 1, 2005. ftp://ftp.irisa.fr/techreports/theses/2005/padioleau.pdf.
Full textBousbahi, Fatiha. "Sadrp : un Système d'Aide Didactique basé sur la Reconnaissance du Plan." Paris 7, 1994. http://www.theses.fr/1994PA070037.
Full textIn front of an important increasing complexity of functionalities offered by computer systems, several needs appeared in their using. User support is generally, provided by hard-copy manuals and on-line help systems. However, these traditional assistance are not sufficient, particularly to novice users, problems arise in accessing the information and in understanding it. One way to address this problem is through intelligent help systems which are supposed to provide users an adequate didactic active help and take into consideration their different skills (abilities, intentions, believes, errors, needs). In help system where the presence of tutor is very important, taking account only the task context is not sufficient. It is very important to recognise user's intention and plan to able the tutor to provide an adequate help. To achieve this goal, a previous didactic study of the application domain must be realised. The plan is a fundamental element in the interpretation of user's errors and intentions. It is the sign of his representation of problems and the proof of his performances or failure. In this way, we have analysed word processing which constitutes our application domain. We have situated specific problems of the domain and identified users' difficulties. This study ables us to class errors and their origins. This data constitute knowledge that system will use to recognise the user's plan. The plan
Dion-Routhier, Justine. "L'apprentissage par problème basé sur des questions socialement vives au primaire." Master's thesis, Université Laval, 2018. http://hdl.handle.net/20.500.11794/32269.
Full textGanet, Leslie. "Construction et catégorisation d'explication : un modèle basé sur la catégorisation contextuelle." Paris 8, 2006. http://www.theses.fr/2006PA082668.
Full textWhereas teaching explanation fulfils a determining function in the processes of comprehension and training, contrary to scientific explanation, the way in which the production of an explanation is carried out does not have a satisfactory solution up to now. The point of view defended in this research is that the context of the topics of the explanation and the context of the situation of explanation are elements which take part in the construction of the conceptual contents of the explanation which can be modelled with contextual categorization mechanisms. Within this framework, the construction of explanation is seen as an active process of construction of representa-tion in the form of a network of categories (lattice of Galois lattices) and verbalization as an ordered exhibition of categories and of implication. Exhibition follows a top-down formulation of the common, specific and relational properties. Implication is a bottom-up link towards the target category. Predictions of the model are evaluated with seven experiments and the results are discussed according to types of explana-tions and of contexts
Kornas, Jakub. "Contributions au déploiement dans les architectures réflexives basé sur les composants." Université Joseph Fourier (Grenoble), 2008. http://www.theses.fr/2008GRE10173.
Full textModern software systems are increasingly complex regarding their development and their runtime management. To address this complexity, a component-based paradigm has emerged. Components modularize development for better software engineering and promote a vision of software as a dynamic assembly of components that can be deployed and managed at runtime. One successful approach for advanced runtime management is based on the software architecture that components make explicit. This approach, called architecture-based management, has evolved from ad-hoc early solutions to generic frameworks based on reflexive component models. One such framework is the JADE framework. JADE targets autonomie management of complex distributed systems. Based on a reflexive component model, JADE captures the complete software architecture of distributed systems, including hosted distributed applications and their hosting distributed system. Ln particular, this architecture reifies the runtime behavior of the distributed system, such as node failures or performance characteristics. Using this complete architecture, autonomie managers observe and react accordingly to changing conditions. The reaction of autonomie managers is to plan an architecture reconfiguration. Forinstance, a self-repair manager observing anode failure would plan to reconstruct the lost part of the distributed system on another node. A self-protection manager would observe an intrusion and would plan reconfiguring the distributed system in order to isolate or sandbox compromised components. A self-optimizing manager could observe an availability problem in a replicated server and plan to augment the replication cardinality of the server components. Consequently, at the heart of JADE, one tinds the challenge ofcomponent deployment. Indeed, most reconfigurations of the architecture ofa distributed system rely on the ability to instantiate components on remote nodes of the distributed system. More precisely, once autonomic managers have generated a reconfiguration plan of the distributed system, the actual execution of the plan is itself distributed, essentially creating and removing components as weil as binding and unbinding them. Creating and removing components requires a local management of components on each node of the distributed system. This local management requires a distributed infrastructure to find, download, install, and remove components. The work presented in this thes. Is has provided JADE with advanced deployment capabilities in a distributed environment. Ln particular, we have approached this challenge through a recursive design where the implementation of components has been modelled using components, providing a sound and uniform deployment that follows the architecture-based principles. Ln particular, we can deploy application components as weil as middleware components. Moreover, we can not only deploy regular components but we can also deploy legacy software that are wrapped with components. Through wrapping, remotely deployed legacy software can be managed by JADE in a uniform manner. Besides providing the deployment subsystem of JADE, this work has shown that underlying reflexive component model called FRACTAL needed to be extended in order to capture implementations and their specifies. Although conceived for FRACT AL and JADE, these extensions apply to most curren: component models that focus on the functional assembly of components and not on how components are deployed. This work has also shown that autonomie architecture based management has specifie dynamic needs in terrns of deployment that makes it difficult to reuse existing dynamic component platforms such as OSGI. A first design and prototype built during this thesis, although successful in many ways, has demonstrated fundamental design and architectural tensions between OSGI and JADE. A second design and prototype has shown the feasibility ofusing the Java platforrn for supporting our extended FRACT AL as the foundation to autonomie architecture-based management of complex distributed systems
Koubaa, Mohamed. "Tatouage robuste de vidéo basé sur la notion de régions d'intérêt." Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14117/document.
Full textThe work presented in this thesis aims to develop new approaches to introduce, in a robust way, a marks in a video. The areas of the images which are most appropriate to the introduction of the tattoo should be selected. For that, several criteria must be taken into account. Firstly, when a mark is introduced into an area of the image, it is necessary to introduce the same mark at the same location on all images in the sequence. It is also important to detect an invisible areas where changes could be introduced easily without being seen. These are areas where the human eye is less sensitive to changes, such as shadows region of moving objects. To achieve the e#ective detection of such regions, a phase of analysis including the creation of mosaic images and the detection of shadows of moving objects will be realized
Bourotte, Marc. "Générateur stochastique de temps multisite basé sur un champ gaussien multivarié." Thesis, Avignon, 2016. http://www.theses.fr/2016AVIG0415/document.
Full textStochastic weather generators are numerical models able to simulate sequences of weather data with similar statistical properties than observed data. However, few of them are able to simulate several variables (with precipitation) at different sites from one region. In this thesis, we propose an original model of stochastic generator based on a spatio-temporal multivariate Gaussian random field. A first methodological work was needed to develop a completely non separable cross-covariance function suitable for the spatio-temporal multivariate nature of studied data. This cross-covariance function is a generalization to the multivariate case of spatio-temporal non-separable Gneiting covariance in the case of the family of Matérn. The proof of the validity of the model and the estimation of its parameters by weighted pairwise maximum likelihood are presented. An application on weather data shows the interest of this new model compared with existing models. The multivariate Gaussian random field allows the modeling of weather variables residuals (excluding precipitation). Residuals are obtained after normalization of variables by seasonal means and standard deviations, themselves modeled by sinusoidal functions. The integration of precipitation in the stochastic generator requires the transformation of a component of the Gaussian random field by an anamorphosis function. This anamorphosis function can manage both the occurrence and intensity of precipitation. The corresponding component of the Gaussian random field corresponds to a rain potential, correlated with other variables by the cross-covariance function developed in this thesis. Our stochastic weather generator was tested on a set of 18 stations distributed over the Mediterranean area (or close) in France. The conditional and non-conditional simulation of daily weather variables (maximum and minimum temperature, average wind speed, solar radiation and precipitation) for these 18 stations show good result for a number of statistics
Royer, Mickaël. "Routage basé sur le contenu dans les réseaux ad-hoc aéronautiques." Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30047/document.
Full textIn a context of growing needs of communication means to increase ight safety and meet the expectations of companies and passengers, the world of civil aviation seeks new communication systems that can meet these objectives. The Aeronautical Ad-Hoc Networks, AANETs represent an innovative approach to address this problem. It is self-configured networks, using no fixed infrastructure where the nodes are commercial aircraft. The AANETs can be seen as a subset of the VANET (Vehicular Ad-Hoc Networks) since they share many features as the constraints imposed on the trajectories. In order to use these mobile networks more eficiently while meeting the needs of new applications, such as the transmission of weather information in real time, requiring air to air communications. , we propose in this thesis to use the paradigm of content based routing above AANET. In this kind of routing, it is not a destination address that is used to identify the recipients, but the message content itself. In this paradigm, a transmitter sends a message having attributes and the message is then transmitted by the network to nodes interested by the content of the message. Applied to weather information update, this approach allows an aircraft detecting a dangerous phenomenon such as a thunderstorm to only prevent interested nodes, ie those whose the trajectorycome close to the storm during the lifetime of the event. In this thesis, we have chosen to rely on the popular Publish / Subscribe (P/S) paradigm to provide a content based routing service. In this approach, publishers publish events. On the other side, nodes send subscriptions to declare their interest and the system is then in charge of forward events to nodes that match their needs. After a state of the art about existing P / S systems, particularly those adapted to VANETs, we choose to test the solutions seemed interesting in a AANET context. To accomplish this, we have developed as a Omnet ++ mobility model using real position reports to replay a full day of trafic of aircraft and several aeronautical applications based on a P / S system to generate realistic data. The results show that these solutions are not completely suitable for AANET context. Therefore, in a second step, we proposed a new P / S system which is more eficient on a AANET. This solution is based on an overlay network built thanks to a new of 1-hopping clustering algorithm suitable for AANET. In order to increase the stability of the overlay architecture, this algorithm is based on the number of neighbors and the relative mobility between the nodes to define groups. The tests show that the P/S system based on this overlay provides better results than the previously tested solutions, whether in terms of network load or percentage of transmitted events
Boudreau, Dany. "Développement et implantation d'un programme de maintenance basé sur la fiabilité." Thèse, Université du Québec à Trois-Rivières, 2005. http://depot-e.uqtr.ca/1313/1/000128397.pdf.
Full textSalameh, Nadeen. "Conception d’un système d’alerte embarqué basé sur les communications entre véhicules." Thesis, Rouen, INSA, 2011. http://www.theses.fr/2011ISAM0016/document.
Full textDuring the last recent years, ADAS systems such as collision warning, tracking, night vision and navigation systems have been developed. The development of these systems has witness eda growing importance, as they are expected to help improving both road safety and traffic efficiency. More over, they have an ability to enhance the communication between the road infrastructure and the vehicle or between vehicles for safer and efficient transportation services such as : embedded advance collision, collision avoidance and automatic control. In addition,given the rapidly increasing interest in wireless communications, cooperative ADAS define anew framework of autonomous inter vehicular communication which operates on the assumption that such vehicles consist of a multitude of coordinated advanced sensory technologies.Sensors acquire real-time data about road conditions to help the driver respond effectively by sending appropriate messages between vehicles. In addition, these data help to assess the performance of ADAS in the context of improving driver behavior. It is necessary to set some main metrics such as inter-vehicle distance, driver reaction time and time to collision. The messages are transmitted to drivers using vehicular Ad-hoc networks (VANETs) which are a specific type of Mobile Ad-hoc Networks hold the promise to contribute to safe and more efficient roadways.In this thesis we proposed a new methodology of development to prototype ADAS. This methodology dedicated to cooperative ADAS drove us to implement a new simulated frameworkof prototyping system. This framework combines the data from three models : Geo-localizationGPS, vision and V2V communication towards an application of anti-collision warning system. A major problem in communicating ADAS systems is the quality and robustness of the communication.It depends on a large number of parameters that must be modeled to assess there liability of these systems. We developed a new prototyping system based on the principle ofaugmenting the reality in which we can replay actual data and change settings of communication environment. The GPS data and routing protocols were crucial elements for V2V model simulation into ns-2 simulator. We have performed real tests on the experimental prototyping platform LaRA. Multiple results are presented to show up the constancy of the method and the performance efficiency of real-time multi sensors in an integrated framework for collision avoidance applications. Results of this research have shown that IVCs simulations system provides enhanced data for the verification of features of new ADAS. The results of routing protocols simulation with real-time location data are integrated in the new developed prototype. The implementation of the system warning was used to estimate the number of pre-collisions detected in both real and simulated situations. The difference between these two situations was studied and analyzed for several scenarios corresponding to different road situations
Ould, Ouali Lydia. "Modèle de négociation collaborative basé sur la relation interpersonnelle de dominance." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS470/document.
Full textThe rise of work in affective computing sees the emergence of various research questions to study agent / human interactions. Among them raises the question of the impact of interpersonal relations on the strategies of communication. Human/agent interactions usually take place in collaborative environments in which the agent and the user share common goals. The interpersonal relations which individuals create during their interactions affects their communications strategies. Moreover, individuals who collaborate to achieve a common goal are usually brought to negotiate. This type of negotiation allows the negotiators to efficiently exchange information and their respective expertise in order to better collaborate. The objective of this thesis is to study the impact of the interpersonal relationship of dominance on collaborative negotiation strategies between an agent and a human. This work is based on studies from social psychology to define the behaviours related to the manifestation of dominance in a negotiation. We propose a collaborative negotiation model whose decision model is governed by the interpersonal relation of dominance. Depending on its position in the dominance spectrum, the agent is able to express a specific negotiation strategy. In parallel, the agent simulates an interpersonal relationship of dominance with his interlocutor. To this aim, we provided the agent with a model of theory of mind that allows him to reason about the behaviour of his interlocutor in order to predict his position in the dominance spectrum. Afterwards, the agent adapts his negotiation strategy to complement the negotiation strategy detected in the interlocutor. Our results showed that the dominance behaviours expressed by our agent are correctly perceived by human participants. Furthermore, our model of theory of mind is able de make accurate predictions of the interlocutor behaviours of dominance with only a partial representation of the other's mental state. Finally, the simulation of the interpersonal relation of dominance has a positive impact on the negotiation: the negotiators reach a good rate of common gains and the negotiation is perceived comfortable which increases the liking between the negotiators
Carocci, Margot. "Sur la route d'un virus recombinant EMCV-FMDV." Paris 7, 2011. http://www.theses.fr/2011PA077186.
Full textFoot and Mouth Disease is a highly contagious animal disease with important economic impacts. The causative agent, FMDV, a picornavirus, replicates and spreads extremely rapidly. The recent outbreaks in countries previously FMD-free demonstrated the need to develop control strategies to stop or at least slow the spread of the virus. The aim of this project is to develop a safe recombinant virus that would be made of FMDV capsid proteins, and the non structural proteins of the Encephalomyocarditis virus (EMCV). This recombinant virus will serve as a marker vaccine against FMD. In order to attenuate EMCV virulence, a deletion in the 2A protein was introduced. Study of EMCV1. 26 Δ 2A virus showed that it causes cell death by apoptosis in contrast to the wild type, suggesting that the EMCV 2A protein is necessary to inhibit apoptosis. Moreover, we have shown that EMCV1. 26 Δ 2A virus was strongly attenuated in vitro as in vivo, and efficiently protected mice after challenge with a lethal dose of wild type virus. Our results indicate that this virus is a good candidate for a live attenuated vaccine against EMCV and a safe base for the production of the EMCV-FMDV chimera virus. The production of this recombinant chimera virus required several cloning steps, leading to the construction of the EMC VA2 Δ -PI FMDV genomic cDNA (pMCl). The first attempts to produce recombinant virus EMC V Δ 2A-P1 FMDV allowed detection of FMDV capsid antigens, but did not succeed yet to produce infections recombinant virus. The formation of recombinant viral particles or the eventual limiting steps of the viral cycle remain to be determined. However, the results obtained up to now are heartening and promising