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Hamoui, 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.
Pełny tekst źródłaHome 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
Ouarnoughi, Hamza. "Placement autonomique de machines virtuelles sur un système de stockage hybride dans un cloud IaaS". Thesis, Brest, 2017. http://www.theses.fr/2017BRES0055/document.
Pełny tekst źródłaIaaS cloud providers offer virtualized resources (CPU, storage, and network) as Virtual Machines(VM). The growth and highly competitive nature of this economy has compelled them to optimize the use of their data centers, in order to offer attractive services at a lower cost. In addition to investments related to infrastructure purchase and cost of use, energy efficiency is a major point of expenditure (2% of world consumption) and is constantly increasing. Its control represents a vital opportunity. From a technical point of view, the control of energy consumption is mainly based on consolidation approaches. These approaches, which exclusively take into account the CPU use of physical machines (PM) for the VM placement, present however many drawbacks. Indeed, recent studies have shown that storage systems and disk I/O represent a significant part of the data center energy consumption (between 14% and 40%).In this thesis we propose a new autonomic model for VM placement optimization based on MAPEK (Monitor, Analyze, Plan, Execute, Knowledge) whereby in addition to CPU, VM I/O and related storage systems are considered. Our first contribution proposes a multilevel VM I/O tracer which overcomes the limitations of existing I/O monitoring tools. In the Analyze step, the collected I/O traces are introduced in a cost model which takes into account the VM I/O profile, the storage system characteristics, and the cloud environment constraints. We also analyze the complementarity between the two main storage classes, resulting in a hybrid storage model exploiting the advantages of each. Indeed, Hard Disk Drives (HDD) represent energy-intensive and inefficient devices compared to compute units. However, their low cost per gigabyte and their long lifetime may constitute positive arguments. Unlike HDD, flash-based Solid-State Disks (SSD) are more efficient and consume less power, but their high cost per gigabyte and their short lifetime (compared to HDD) represent major constraints. The Plan phase has initially resulted in an extension of CloudSim to take into account VM I/O, the hybrid nature of the storage system, as well as the implementation of the previously proposed cost model. Secondly, we proposed several heuristics based on our cost model, integrated and evaluated using CloudSim. Finally, we showed that our contribution improves existing approaches of VM placement optimization by a factor of three
Sawma, Gilbert. "Un système de pilotage autonomique pour la distribution de charge dans les réseaux sans fil Wi-Fi". Paris 6, 2009. http://www.theses.fr/2009PA066755.
Pełny tekst źródłaHouzé, Etienne. "A generic and adaptive approach to explainable AI in autonomic systems : the case of the smart home". Electronic Thesis or Diss., Institut polytechnique de Paris, 2022. http://www.theses.fr/2022IPPAT022.
Pełny tekst źródłaSmart homes are Cyber-Physical Systems where various components cooperate to fulfill high-level goals such as user comfort or safety. These autonomic systems can adapt at runtime without requiring human intervention. This adaptation is hard to understand for the occupant, which can hinder the adoption of smart home systems. Since the mid 2010s, explainable AI has been a topic of interest, aiming to open the black box of complex AI models. The difficulty to explain autonomic systems does not come from the intrinsic complexity of their components, but rather from their self-adaptation capability which leads changes of configuration, logic or goals at runtime. In addition, the diversity of smart home devices makes the task harder. To tackle this challenge, we propose to add an explanatory system to the existing smart home autonomic system, whose task is to observe the various controllers and devices to generate explanations. We define six goals for such a system. 1) To generate contrastive explanations in unexpected or unwanted situations. 2) To generate a shallow reasoning, whose different elements are causaly closely related to each other. 3) To be transparent, i.e. to expose its entire reasoning and which components are involved. 4) To be self-aware, integrating its reflective knowledge into the explanation. 5) To be generic and able to adapt to diverse components and system architectures. 6) To preserve privacy and favor locality of reasoning. Our proposed solution is an explanatory system in which a central component, name the ``Spotlight'', implements an algorithm named D-CAS. This algorithm identifies three elements in an explanatory process: conflict detection via observation interpretation, conflict propagation via abductive inference and simulation of possible consequences. All three steps are performed locally, by Local Explanatory Components which are sequentially interrogated by the Spotlight. Each Local Component is paired to an autonomic device or controller and act as an expert in the related knowledge domain. This organization enables the addition of new components, integrating their knowledge into the general system without need for reconfiguration. We illustrate this architecture and algorithm in a proof-of-concept demonstrator that generates explanations in typical use cases. We design Local Explanatory Components to be generic platforms that can be specialized by the addition of modules with predefined interfaces. This modularity enables the integration of various techniques for abduction, interpretation and simulation. Our system aims to handle unusual situations in which data may be scarce, making past occurrence-based abduction methods inoperable. We propose a novel approach: to estimate events memorability and use them as relevant hypotheses to a surprising phenomenon. Our high-level approach to explainability aims to be generic and paves the way towards systems integrating more advanced modules, guaranteeing smart home explainability. The overall method can also be used for other Cyber-Physical Systems
Wailly, Aurélien. "End-to-end security architecture for cloud computing environments". Thesis, Evry, Institut national des télécommunications, 2014. http://www.theses.fr/2014TELE0020/document.
Pełny tekst źródłaSince several years the virtualization of infrastructures became one of the major research challenges, consuming less energy while delivering new services. However, many attacks hinder the global adoption of Cloud computing. Self-protection has recently raised growing interest as possible element of answer to the cloud computing infrastructure protection challenge. Yet, previous solutions fall at the last hurdle as they overlook key features of the cloud, by lack of flexible security policies, cross-layered defense, multiple control granularities, and open security architectures. This thesis presents VESPA, a self-protection architecture for cloud infrastructures. Flexible coordination between self-protection loops allows enforcing a rich spectrum of security strategies. A multi-plane extensible architecture also enables simple integration of commodity security components.Recently, some of the most powerful attacks against cloud computing infrastructures target the Virtual Machine Monitor (VMM). In many case, the main attack vector is a poorly confined device driver. Current architectures offer no protection against such attacks. This thesis proposes an altogether different approach by presenting KungFuVisor, derived from VESPA, a framework to build self-defending hypervisors. The result is a very flexible self-protection architecture, enabling to enforce dynamically a rich spectrum of remediation actions over different parts of the VMM, also facilitating defense strategy administration. We showed the application to three different protection scheme: virus infection, mobile clouds and hypervisor drivers. Indeed VESPA can enhance cloud infrastructure security
Wailly, Aurélien. "End-to-end security architecture for cloud computing environments". Electronic Thesis or Diss., Evry, Institut national des télécommunications, 2014. http://www.theses.fr/2014TELE0020.
Pełny tekst źródłaSince several years the virtualization of infrastructures became one of the major research challenges, consuming less energy while delivering new services. However, many attacks hinder the global adoption of Cloud computing. Self-protection has recently raised growing interest as possible element of answer to the cloud computing infrastructure protection challenge. Yet, previous solutions fall at the last hurdle as they overlook key features of the cloud, by lack of flexible security policies, cross-layered defense, multiple control granularities, and open security architectures. This thesis presents VESPA, a self-protection architecture for cloud infrastructures. Flexible coordination between self-protection loops allows enforcing a rich spectrum of security strategies. A multi-plane extensible architecture also enables simple integration of commodity security components.Recently, some of the most powerful attacks against cloud computing infrastructures target the Virtual Machine Monitor (VMM). In many case, the main attack vector is a poorly confined device driver. Current architectures offer no protection against such attacks. This thesis proposes an altogether different approach by presenting KungFuVisor, derived from VESPA, a framework to build self-defending hypervisors. The result is a very flexible self-protection architecture, enabling to enforce dynamically a rich spectrum of remediation actions over different parts of the VMM, also facilitating defense strategy administration. We showed the application to three different protection scheme: virus infection, mobile clouds and hypervisor drivers. Indeed VESPA can enhance cloud infrastructure security
Ludwig, Marie. "Autonomie et reconfiguration des systèmes de systèmes tactiques". Phd thesis, Université de Bretagne occidentale - Brest, 2013. http://tel.archives-ouvertes.fr/tel-00965813.
Pełny tekst źródłaPatsias, Sylvie. "Système central et autonomie locale en Grèce". Montpellier 1, 2002. http://www.theses.fr/2002MON10037.
Pełny tekst źródłaAyeb, Neil. "Administration autonomique et décentralisée de flottes d'équipements de l'Internet des Objets". Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALM054.
Pełny tekst źródłaWith the expansion of Internet of Things (IoT) that relies on heterogeneous; dynamic; and massively deployed devices; Device Management (DM), which consists of firmware update, configuration, troubleshooting and tracking, is required for proper quality of service and user experience, deployment of new functions, bug fixes and distribution of security patches.Existing Home and IoT industrial DM platforms are already showing their limits with a few static home and IoT devices (e.g., routers, TV Decoders). Currently, these platforms are mainly manually operated by experts such as system administrators, and require extensive knowledge and skills. Heterogeneity implies that devices have diverse compute and network capabilities. Dynamicity translates to variation of devices environments (e.g., network quality, running services, nearby devices). The massive aspect is reflected in fleets composed of billions of devices as opposed to millions currently.Therefore, IoT device administration requires launching administration operations that assure the well-functioning of device fleets. These operations are to be adapted in terms of nature, speed, target, accordingly to devices current service requirements, computing capabilities and network conditions. Existing manually operated approaches cannot be applied on these massive and diverse devices forming the IoT.To tackle these issues, our work in an industrial research context, at Orange Labs, proposes applying autonomic computing to platform operation and distribution. It aims to ensure that administration requirements of a device fleet are automatically fulfilled using the optimal amount of resources and with the least amount of execution errors.Specifically, our contribution relies on four coordinated autonomic loops. The first two loops are responsible for handling fleet variation and update operations dispatching, while the remaining two others focus on vertical and horizontal scalability. Our approach allows automatic administration platform operation, more accurate and faster error diagnosis, vertical and horizontal scaling along with simpler IoT DM platform administration.For experimental validation, we developed two prototypes: one that demonstrates the usability of our approach with Orange's industrial IoT platform for its piloting, while the other one demonstrates vertical scalability using extended open-source remote administration software. Our prototypes show encouraging results, such as two times faster firmware upgrade operation execution speed, compared to existing legacy telecommunication operator approaches
Movahedi, Zeinab. "Une architecture autonomique pour les réseaux sans-fil : proposition et méthodologie d'évaluation". Paris 6, 2011. http://www.theses.fr/2011PA066537.
Pełny tekst źródłaMedeiros, Adelardo Adelino Dantas de. "Contrôle d'exécution pour robots mobiles autonomes : architecture, spécification et validation". Toulouse 3, 1997. http://www.theses.fr/1997TOU30027.
Pełny tekst źródłaMelekhova, Olga. "Coordination dans la décision pour les architectures autonomiques à grande échelle". Paris 6, 2013. http://www.theses.fr/2013PA066538.
Pełny tekst źródłaThough autonomic computing has received a lot of attention since itsinception in the early 2000, to date the research has mainlyconsidered relatively small-scale systems. But Kephart recentlyreminded that the main challenges in this area revolve around facingthe inherent decentralisation when going large-scale, which greatlycomplicates often interdependent adaptation decisions. Especially asautonomic computing imposes inevitable time constraints as it de factoimplies a reactive control for adapting. In this paper, we propose adecentralised approach for coordinating the decision-making thatuncouples the exchange and gathering of coordination information onone hand from the coordinated local decision-making on the other hand. This uncoupling allows for these local decisions to be made withoutdelays as they are based upon information gathered previously. Thisapproach is illustrated by a geotracking application for large fleetsof trucks from the SALTY ANR project, and validated through a seriesof simulations demonstrating the adequacy and the good performances ofits various algorithms
Ravestein, Jean. "Autonomie et régulation dans un système didactique : à l'étude de la complexité du rapport au savoir des élèves à l'école élémentaire : systèmes d'apprentissage et systèmes d'évaluation". Aix-Marseille 1, 1994. http://www.theses.fr/1994AIX10062.
Pełny tekst źródłaThe aim of this thesis is to answer the general question : what the autonomy of pupils in classes of primary school depends on? the principal target of the "reforme des cycles" is to put children at the core of educative system, this is our practical problematisation. Our theorical problematisation requires four distinct referents - sociology, psychology, didactic, and complex anthropology which combine to produce three operational hypothesises. These hypothesises concern the regulation, its goals, its organisation, its connections with the memory of the didactic system. Experimentations are made on ordinary classes, using notions of mathematics : classification of problems (perception of the difficulty), the cube pattern, chance and probabilities. We have shown that if each pupil had his own way of perceiving difficulty of the tasks, this perception is capital for the system and is mainly determined by it. We have noticed that a task is all the better done since its solution is made possible though symbols (codes) which put a certain distance between the aim itself and the task. We have underlined the fact that if we want the pupils to built some meaning from a new knowledge already settled in the didactic memory of the system. We have concluded that the pupil's autonomy in an ordinary class, cannot be independence but the institution of a new relationship with the rules he must be taught to integrate in his own project. The pupil's autonomy cannot be decreed but must be organised, especially by organising its regulation
Denoyelle, Jacques. "Autonomie et systèmes économiques : essai sur les formes de l'ordre". Paris 10, 1989. http://www.theses.fr/1989PA100082.
Pełny tekst źródłaBoujbel, Raja. "Déploiement de systèmes répartis multi-échelles : processus, langage et outils intergiciels". Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30016/document.
Pełny tekst źródłaDue to increased connected objects, multiscale systems are more and more widespread. Those systems are highly distributed, heterogeneous, dynamic and open. They can be composed of hundreds of software components deployed into thousands of devices. Deployment of software systems is a complex post-production process that consists in making software available for use and then keeping it operational. For multiscale systems, deployment plan expression just as deployment realization and management are tasks impossible for a human stakeholder because of heterogeneity, dynamics, number, and also because the deployment domain is not necessarily known in advance. The purpose of this thesis is to study and propose solutions for the deployment of distributed multiscale software systems. Firstly, we provide an up-to-date terminology and definitions related to software deployment, plus a state of the art on automatic deployment of distributed software systems. The rest of the contribution lies in the proposition of: a complete process for autonomic deployment of multiscale systems ; a domain specific language, MuScADeL, which simplifies the deployment conceptor task and allows the expression of deployment properties such as informations for the domain state probing ; and a middleware, MuScADeM, which insures the automatic generation of a deployment plan according the domain state, its realization and finally the maintenance in an operational condition of the system
Mourcou, Quentin. "Conception et validation d’un système ubiquitaire centré autour du Smartphone et dédié à l’amélioration de l’autonomie de la personne". Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAS009/document.
Pełny tekst źródłaLoss of mobility and independence for a person increase his isolation, anxiety and can lead to depression. This doctoral work was introduced and motivated by the goal to maintain, even to improve, the autonomy of the people. The decrease of the mobility is directly connected to the decrease of the autonomy. By occurring on mobility, with the help of new technologies, we are capable of proposing innovative solutions to this problem. We noticed that the Smartphone is a tool composed of a set of sensors allowing us to intervene on the evaluation and the rehabilitation of capacities connected to the mobility.The main objective of this doctoral work is to conceive and to estimate an ubiquitous system, based on Smartphone and dedicated to the improvement of the autonomy of the person by rehabilitation at home and the mobility aid. To reach this general goal, we tried at first to know if the Smartphone and its embedded sensors brought the reliability necessary for the conception of such a system. So, to improve the autonomy, we had to answer secondary objectives which are, from a Smartphone, to be able to realize assessment, monitoring and improvement of the 1) proprioceptive capacities of the person and of 2) travels and movements of the person with reduced mobility, which are both of them essential in the preservation of the autonomy.As a whole, the results presented in this doctoral work demonstrate that:• The Smartphone is reliable within the domain of the clinical measurement• The Smartphone is a tool for assessment, monitoring, improving and training a movement or a posture.• The Smartphone is capable of collecting kinematic data to raise the accessibility of the public road network.These results opens the prospect of the use of an ubiquitous tool, the Smartphone, within the framework of the assessment, monitoring, improving and training of a movement, a posture or a displacement, in an autonomous way. To cross the stage of proof of concept, clinical trials can be right now led to determine the impact of our system on the health and the well-being of the person
Frey, Sylvain. "Architectures génériques pour des systèmes autonomiques multi-objectifs ouverts : application aux micro-grilles intelligentes". Thesis, Paris, ENST, 2013. http://www.theses.fr/2013ENST0077/document.
Pełny tekst źródłaAutonomic features, i.e. the capability of systems to manage themselves, are necessary to control complex systems, i.e. systems that are open, large scale, dynamic, comprise heterogeneous third-party sub-systems and follow multiple, sometimes conflicting objectives. In this thesis, we aim to provide generic reusable supports for designing complex autonomic systems. We propose a formalisation of management objectives, a generic architecture for designingadaptable multi-objective autonomic systems, and generic organisations integrating such autonomic systems.We apply our approach to the concrete case of smart micro-grids which is a relevant example of such complexity. We present a simulation platform we developped and illustrate our approach via several simulation scenarios
Frey, Sylvain. "Architectures génériques pour des systèmes autonomiques multi-objectifs ouverts : application aux micro-grilles intelligentes". Electronic Thesis or Diss., Paris, ENST, 2013. http://www.theses.fr/2013ENST0077.
Pełny tekst źródłaAutonomic features, i.e. the capability of systems to manage themselves, are necessary to control complex systems, i.e. systems that are open, large scale, dynamic, comprise heterogeneous third-party sub-systems and follow multiple, sometimes conflicting objectives. In this thesis, we aim to provide generic reusable supports for designing complex autonomic systems. We propose a formalisation of management objectives, a generic architecture for designingadaptable multi-objective autonomic systems, and generic organisations integrating such autonomic systems.We apply our approach to the concrete case of smart micro-grids which is a relevant example of such complexity. We present a simulation platform we developped and illustrate our approach via several simulation scenarios
Bourgue-Dupont, Madeleine. "Autonomie de sécrétion de rénine par une tumeur de l'appareil juxtaglomérulaire". Montpellier 1, 1987. http://www.theses.fr/1987MON13516.
Pełny tekst źródłaVentola, Cécile. "Prescrire, proscrire, laisser choisir : Autonomie et droits des usagers des systèmes de santé en France et en Angleterre au prisme des contraceptions masculines". Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLS082/document.
Pełny tekst źródłaContraceptive use in France and England differs strongly with regard to male methods: half of English users resort to vasectomy and condoms, compared to just15% of the French population. From the 1960s on, the medicalization of contraception has gone hand in hand with its feminization but it appears that national contraceptive norms allow for different levels of male involvement in each country.In order to understand the process leading to variously gendered contraceptive models, this research draws a comparison between the institutional contexts of contraceptive prescription, which contribute to defining possible and desirable contraceptive choices. In addition to anin-depth historical and institutional analysis, this comparison draws upon 34 semi-structured interviews with prescribers in both countries in order to unveil the logic behind their actions and their influence on contraceptive norms.This analysis underlines the consequences of contrasting political perspectives on birth control in both countries: the legacy of the British eugenicist movement proves more liberal regarding sterilization methods than the French pro-natalist context. Moreover, the National Health Service in England and the French health system address the issues of medical regulation very differently. In France, public supervision of clinical practice is low, which allows for considerable heterogeneity between professionals, and, notably, a paternalistic approach to contraceptive choice and the influence of gendered reluctance towards male methods. In England, public regulation of medical training and practices encourages the standardization of prescribers’ approaches to contraceptive choice and more respect for users’ preferences
Damiani, Sylvain. "Gestion d'une constellation de satellites de surveillance de la terre : autonomie et coordination". Toulouse, ENSAE, 2005. http://www.theses.fr/2005ESAE0025.
Pełny tekst źródłaGharbi, Ghada. "Gestion autonomique d'objets communicants dans le cadre des réseaux machine à machine sous des contraintes temporelles". Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30262.
Pełny tekst źródłaThe decrease in communication costs, the improvement of networks performance and the evolution of the dedicated services platforms managing multiple objects, led to the appearance of new practices and applications gathered under the designation of Machine-to-Machine communications (M2M). M2M systems have to integrate in a coordinated way various devices and software modules such as sensors, actuators, displays, middleware, etc. M2M expansion gives rise to extensive data exploitation, effective routing and reasoning mechanisms for an appropriate decision making and a coordinated control in a predictive and reactive way. This work aims to meet self-management challenges characterized by recent studies of autonomic computing. It deals with the modeling and the validation of M2M systems operating in a dynamic context and under a set of functional and non-functional properties, specifically temporal ones. To do so, we propose to rely on graph grammars and model checking related techniques. This allows to configure and to reconfigure a set of communicating objects by considering a set of constraints. First, we were interested in the validation at design time of M2M communications operating under temporal constraints. A verification and validation approach based on timed automata was proposed. A smart grid scenario was developed to validate the proposed model. This step is necessary, however it is not sufficient. Indeed, M2M systems are dynamic and verification at run time is important. To validate the execution of an M2M system, we focused on in its functional and temporal aspects. We referred to the European standard smartM2M to define an architectural style for M2M systems. This standard was selected for the following reasons: (1) its independence of the application domain and the objects' communication technology, (2) its broad scope and (3) its deployment on industrial systems. To validate the M2M system' functionalities, a multi-model approach was proposed: a first model, named functional, representing a real-time view of M2M system and a second model, named formal, based on a graph grammar incorporating the concepts of the functional layer. To conduct dynamic reconfiguration actions, graph transformation rules have been defined. Bi-directional communication mechanisms have been set up to maintain coherence between the real system and its models. A smart metering use case was developed to validate the proposed approach. With the aim of validating temporal properties of an M2M system during its execution, this approach has been extended with new concepts. We have defined a three-layers based approach to describe the features and temporal properties of an M2M system: an application layer which incorporates the concepts defined in the formal layer of the previous approach with extensions to express temporal properties between applications M2M, a service layer to describe the necessary components to meet the specification of the upper layer and infrastructure layer describing their deployment. An autonomic manager interacts with these layers to supervise and control the temporal behavior of the system. These layers are part of the autonomic manager knowledge base. The autonomic manager architecture and dynamic reconfiguration mechanisms were detailed. An eHealth scenario has been designed to illustrate the proposed approach
Luong, Quang-Tuan. "Matrice fondamentale et calibration visuelle sur l'environnement. Vers une plus grande autonomie des système robotiques". Phd thesis, Université Paris Sud - Paris XI, 1992. http://tel.archives-ouvertes.fr/tel-00549134.
Pełny tekst źródłaLyra, Maria de Lourdes Viana. "Centralisation, système fiscal et autonomie provinciale dans l'Empire brésilien : la province de Pernambouco : 1808-1835". Paris 10, 1985. http://www.theses.fr/1985PA100072.
Pełny tekst źródłaSylla, Adja Ndeye. "Support intergiciel pour la conception et le déploiement adaptatifs fiables, application aux bâtiments intelligents". Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAM095/document.
Pełny tekst źródłaIn the context of pervasive computing and internet of things, systems are heterogeneous,distributed and adaptive (e.g., transport management systems, building automation). Thedesign and the deployment of these systems are made difficult by their heterogeneous anddistributed nature but also by the risk of conflicting adaptation decisions and inconsistenciesat runtime. Inconsistencies are caused by hardware failures or communication errors. Theyoccur when actions corresponding to the adaptation decisions are assumed to be performedbut are not done.This thesis proposes a middleware support, called SICODAF, for the design and thedeployment of reliable adaptive systems. SICODAF combines a behavioral reliability (absenceof conflicting decisions) by means of transitions systems and an execution reliability(absence of inconsistencies) through a transactional middleware. SICODAF is based on autonomiccomputing. It allows to design and deploy an adaptive system in the form of anautonomic loop which consists of an abstraction layer, a transactional execution mechanismand a controller. SICODAF supports three types of controllers (based on rules, on continuousor discrete control theory). SICODAF also allows for loop reconfiguration, to dealwith changing objectives in the considered system, and the integration of a hardware failuredetection system. Finally, SICODAF allows for the design of multiple loops for systems thatconsist of a high number of entities or that require controllers of different types. These loopscan be combined in parallel, coordinated or hierarchical.SICODAF was implemented using the transactional middleware LINC, the abstractionenvironment PUTUTU and the language Heptagon/BZR that is based on transitionssystems. SICODAF was also evaluated using three case studies
Glotzbach, Thomas. "Ein Beitrag zur Steuerung von mobilen Systemen auf Grundlage der bioorientierten adaptiven Autonomie". Ilmenau Univ.-Verl, 2009. http://d-nb.info/1000814300/04.
Pełny tekst źródłaLyra, Maria De Lourdes Viana. "Centralisation, système fiscal et autonomie provinciale dans l'Empire brésilien la province de Pernambuco". Lille 3 : ANRT, 1985. http://catalogue.bnf.fr/ark:/12148/cb375949297.
Pełny tekst źródłaBreton, Linda. "Options méthodologiques et opérationnelles pour la mise en place d'un système d'apprentissage d'anglais niveau intermédiaire en autonomie-guidée". La Rochelle, 2001. http://www.theses.fr/2001LAROF006.
Pełny tekst źródłaSire, Cloé Claude Martine. "Décroissance volontaire et perspectives en matière d'alimentaire". Master's thesis, Faculdade de Ciências Sociais e Humanas, Universidade Nova de Lisboa, 2012. http://hdl.handle.net/10362/7666.
Pełny tekst źródłaLes signes d’une révolution paradigmatique sont aujourd’hui réunis, or la difficulté est de savoir vers quel monde nous tendons. Le déclin des ressources énergétiques fossiles, le réchauffement climatique, les crises (écologique, sociale, économique), composent une conjoncture globale, qui appuie d’une certaine manière la multiplication de l’offre de modèles de sociétés alternatifs. C’est dans ce contexte que le débat autour de la ‘Décroissance volontaire’ bénéficie d’un regain d’intérêt dans les sociétés occidentales, mais pas uniquement. Ce travail s’attache à étudier l’approche d’un mouvement écologiste singulier, sur les problématiques contemporaines liées au thème de l’alimentation. L’analyse de la presse indépendante de la Décroissance rend compte de l’approche médiatique de ce mouvement radical sur les thèmes de l’alimentation, qui vise avant tout à faire renaître une société autonome plutôt que transgressive, en déconstruisant le paradigme contemporain, pour réinventer le prochain.
Radier, Benoît. "Mobilité autonome". Paris 6, 2009. http://www.theses.fr/2009PA066707.
Pełny tekst źródłaBünte, Marco. "Regionale Autonomie in Indonesien : Wege zur erfolgreichen Dezentralisierung /". Hamburg : Inst. für Asienkunde, 2003. http://www.gbv.de/dms/sub-hamburg/379551268.pdf.
Pełny tekst źródłaJacquot, Anne-Lise Marie. "Dynamilk : un simulateur pour étudier les compromis entre performances animales, utilisation des ressources herbagères et recherche d’autonomie alimentaire dans les systèmes bovins laitiers de montagne". Thesis, Clermont-Ferrand 2, 2012. http://www.theses.fr/2012CLF22254/document.
Pełny tekst źródłaDairy systems based on grasslands are sensitive towards environmental variations (climatic events) and production constraints changes. A better match between dynamic of dairy cattle needs and herbage supply could enable the farming system to lean towards a better forage self-sufficiency at farm-scale and to be more resilient to changes. Modeling approach is used to study, over many years, several scenarios with contrasted strategies of biotechnical subsystems management in order to test different calving distributions, cattle and grasslands characteristics, or practices on pastures and meadows. Such a dynamic model, called Dynamilk, has been created and implemented. Dynamilk is focused on relationships among dairy cattle, management and resources. This model is based on a bio-technical approach focused on grassland use by animals. Grassland sub model which consists in biodiversity characteristics and grass growth components has been developed by Jouven (2006). Dairy cattle sub model consists in 2 units: demographic structure unit and intake, milk production and body reserve use unit. This model considers calving period and distribution, dairy cattle characteristics (ability of animals to produce milk and use its body reserve) in order to test the match between animal needs and feed supply. Milk production according to herbage and feed supply is the main output of Dynamilk. Decisional sub-system describe the main practices to rule the production system which are forage system management with mowing practices, forage stores, winter diet, concentrate distribution and grazing management. Validation of dairy cattle sub model and whole model has been carried out by comparison against experimental data and case-study data of real farms. Two systems has been simulated with Dynamilk, the first one based on calving distribution from august to february, called GA, and the second one from march to june, called GP (stocking rate 0.94 LU.ha-1 and concentrate amount 1200 kg.cow-1.year-1). Simulation results have pointed out that both system achieved forage self-sufficiency and grass offer is underused. Several simulations has been accomplished to evaluate impacts of stocking rate increase and concentrate decrease on animal production, herbage utilisation and forage self-suficiency rate. The simulation have indicated that matching animal needs with feed and herbage supply to better cope with climatic events and constraints changes
Romito, Benoit. "Stockage décentralisé adaptatif : autonomie et mobilité des données dans les réseaux pair-à-pair". Caen, 2012. http://www.theses.fr/2012CAEN2072.
Pełny tekst źródłaVenelle, Benjamin. "Contrôle d'accès obligatoire pour systèmes à objets : défense en profondeur des objets Java". Thesis, Orléans, 2015. http://www.theses.fr/2015ORLE2023/document.
Pełny tekst źródłaObjects based systems are presents everywhere in our life. When such a system presents vulnerabilities, confidentiality and integrity are thus widely compromised. For example, Java is an object language authorizing many cyber-attacks between 2012 and 2013 leading the US department of homeland security to recommend its abandon. This thesis proposes to limit the relations between the objects thanks to a mandatory access control. First, a general model of objects supporting objects and prototypes languages is defined. Second, the elementary relations are formalized in order to control them. Those relations include the reference, interaction and three types of flow (activity, information and data). Automata authorize a logic that enables to compute the required mandatory policy. At the same time, the computation of the MAC policy and the efficiency are solved since the policy is reduced. Experimentations use the JAAS security objectives existing in the Java language. Thus, one year of Java vulnerabilities is prevented thanks to the Metasploit framework
KONE, TIEKOURA. "L'integration de la cote d'ivoire dans le systeme national mondial hierarchise : a la recherche d'une autonomie sous contrainte". Paris 8, 1989. http://www.theses.fr/1990PA080478.
Pełny tekst źródłaThe ability of getting autonomy by cote d'ivoire is in relation with the constraints linked witch its integration in the hierarchical national world economic system. Throngh the analysis of these constraints, cote d'ivoire appears as a dominated national economy, caugh in a game rules of which are defined by stronger partiners. Ivorian state autonomy to make decision is particularly limited today, in spite of its efficiency observed in the past. A less pretentions way would be an alternative development strategy, the one of negociated interdependance
Gottstein, Raphaël. "Système délibératif d'un robot autonome : planification probabiliste hiérarchique basée sur des motivations et prise en compte de ressources". Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066412/document.
Pełny tekst źródłaIf the litterature of decision-making has addressed a variety of problems, the ability to make an agent autonomous in the choice of its goals remains a difficult issue to address. This capacity is nevertheless essential for an agent in order to be automous in its environment. This thesis aims at allowing a robot to plan its own actions for multiple concurrent objectives, in a probabilistic environment and with resources. The first contribution of this work is the proposal of a new model for the objectives, the motivations, constituted from an automaton. Motivations describe the evolution of each objective using states and transitions corresponding to the realisation of tasks, and define the reward gains. The second contribution concerns a planning method that makes use the motivations. This method is hierarchical and proposes at first to solve the realisation of the tasks that are relevant for the motivations. By exploiting the specific context of each task, we can quickly compute their policy and calculate their execution model, which we call macro-action. We then use these macro-actions in a high-level local planning process, allowing us to return a conditional plan of the macro-actions to be executed, which we call macro-actions agenda. To solve a problem over time, we propose to include this planning system in a deliberative architecture that will control the execution of the agenda and produce new ones
Mpawenimana, Innocent. "Modélisation et conception d’objets connectés au service des maisons intelligentes : Évaluation et optimisation de leur autonomie et de leur QoS". Thesis, Université Côte d'Azur, 2020. http://www.theses.fr/2020COAZ4107.
Pełny tekst źródłaThis PhD thesis is in the field of smart homes, and more specifically in the energy consumption optimization process for a home having an ambient energy source harvesting and storage system. The objective is to propose services to handle the household energy consumption and to promote self-consumption. To do so, relevant data must be first collected (current, active and reactive power consumption, temperature and so on). In this PhD, data have been first sensed using an intrusive load approach. Despite our efforts to build our own data base, we decided to use an online available dataset for the rest of this study. Different supervised machine learning algorithms have been evaluated from this dataset to identify home appliances with accuracy. Obtained results showed that only active and reactive power can be used for that purpose. To further optimize the accuracy, we proposed to use a moving average function for reducing the random variations in the observations. A non-intrusive load approach has been finally adopted to rather determine the global household active energy consumption. Using an online existing dataset, a machine learning algorithm based on Long Short-Term Memory (LSTM) has then been proposed to predict, over different time scale, the global household consumed energy. Long Short-Term Memory was also used to predict, for different weather profiles, the power that can be harvested from solar cells. Those predictions of consumed and harvested energy have been finally exploited by a Home Energy Management policy optimizing self-consumption. Simulation results show that the size of the solar cells as well as the battery impacts the self-consumption rate and must be therefore meticulously chosen
Carabelea, Cosmin. "Raisonner sur l'autonomie d'un agent au sein de systèmes multi-agents ouverts : une approche basée sur les relations de pouvoir". Phd thesis, Ecole Nationale Supérieure des Mines de Saint-Etienne, 2007. http://tel.archives-ouvertes.fr/tel-00786141.
Pełny tekst źródłaHolguín, Weber Eduardo Javier. "IP for electrostatic MEMS-based integrated energy harvester in GaN-on-Sitechnology". Electronic Thesis or Diss., Sorbonne université, 2023. http://www.theses.fr/2023SORUS672.
Pełny tekst źródłaThis study involves a comprehensive research and design of an energy harvesting system using a electrostatic transducer based on microelectromechanical system (MEMS). The research focuses on integrating autonomous systems, with an emphasis on developing efficient techniques to power them using MEMS energy harvesters. The research extensively investigates the potential of GaN and Silicon technologies for energy harvesting, including a detailed analysis of its material properties, optimization of fabrication techniques, and characterization of device performance. In addition, the study undertakes an evaluation of various wafer substrates, with a special focus on their microscaling capabilities, while emphasizing the critical importance of wafer selection.This study presents a detailed analysis of the selection, characterization, and behavior of a special MEMS device designed for energy harvesting. This selected MEMS device, termed a comb drive resonator with linear springs that closes the gap, exhibits exceptional characteristics. Significantly, it has a wide operating bandwidth that spans the low-frequency spectrum from 10-100 Hz, allowing electrical energy to be harvested even at excitation amplitudes below 1g.The fabrication of MEMS is typically performed in a clean-room environment using silicon-on-glass (SOG) wafers as the base. This approach offers the advantage of reducing parasitic capacitance and increasing motional capacitance due to the thick layers of material. Additionally, in this work, we utilize an analytical model to explain the behavior of MEMS, including the assumptions, parameters, and techniques used, without directly fabricating them.The performance evaluation of the study uncovers innovative opportunities for autonomous systems, thereby establishing a fundamental platform for the design and optimization of vibration-based energy harvesting devices. The investigation includes extensive simulation and response analysis of the system, providing a holistic representation of the computational model. Specifically, the study describes the design of a charge pump and the careful selection of system components, incorporating both discrete methods and the use of commercially available components.Particular focus of the research focuses on the electronic design of a vibrational energy harvester, particularly the charge pump system based on an electrostatic MEMS device. The circuit's capability to convert the transducer's dynamic capacitance changes into electrical energy makes it suitable for low-power energy harvesting applications. Furthermore, the relationship between load resistance and system performance is thoroughly examined. These findings demonstrate the advantages of incorporating gallium nitride (GaN) technology and optimizing component integration to improve energy efficiency and system performance.This paper presents a comprehensive approach to the design and implementation of a power management unit (PMU) tailored for vibrational energy harvesting MEMS systems. This PMU consists of two key components: an isolation unit and an ultra-low-power comparator. It is implemented using two different technologies: a 180nm silicon PDK and a GaN PDK in SOI for high-voltage applications. The voltage comparator, the foundation of the system, guarantees a constant DC output voltage between 2 and 5 volts for silicon and 1.9V to 2.4 volts for GaN. It also controls the charging and discharging cycles of the system, which fulfills the needs of the downstream circuits. This operating profile makes it suitable for applications that require specific operating parameters. Through a sophisticated analysis, optimal performance is achieved for two different technology paradigms: silicon-based and GaN-based harvester systems, each with its own set of advantages and limitations
Rispoli, Raphaël. "Éléments d'une méthodologie computationnelle pour la construction autonome des représentations : application à l'élaboration de descriptions avec le système FADA". Paris 6, 2002. http://www.theses.fr/2002PA066315.
Pełny tekst źródłaGottstein, Raphaël. "Système délibératif d'un robot autonome : planification probabiliste hiérarchique basée sur des motivations et prise en compte de ressources". Electronic Thesis or Diss., Paris 6, 2017. http://www.theses.fr/2017PA066412.
Pełny tekst źródłaIf the litterature of decision-making has addressed a variety of problems, the ability to make an agent autonomous in the choice of its goals remains a difficult issue to address. This capacity is nevertheless essential for an agent in order to be automous in its environment. This thesis aims at allowing a robot to plan its own actions for multiple concurrent objectives, in a probabilistic environment and with resources. The first contribution of this work is the proposal of a new model for the objectives, the motivations, constituted from an automaton. Motivations describe the evolution of each objective using states and transitions corresponding to the realisation of tasks, and define the reward gains. The second contribution concerns a planning method that makes use the motivations. This method is hierarchical and proposes at first to solve the realisation of the tasks that are relevant for the motivations. By exploiting the specific context of each task, we can quickly compute their policy and calculate their execution model, which we call macro-action. We then use these macro-actions in a high-level local planning process, allowing us to return a conditional plan of the macro-actions to be executed, which we call macro-actions agenda. To solve a problem over time, we propose to include this planning system in a deliberative architecture that will control the execution of the agenda and produce new ones
Pires, Ferreira Ana Cristina. "La prise de décisions, participation et autonomie dans la gestion de l'éducation au Cap-Vert". Caen, 2004. http://www.theses.fr/2004CAEN1401.
Pełny tekst źródłaBoutaud, Benoit. "Un modèle énergétique en transition ? Centralisme et décentralisation dans la régulation du système énergétique". Thesis, Paris Est, 2016. http://www.theses.fr/2016PESC1173/document.
Pełny tekst źródłaEnergy transition finds itself high on the political agenda, with electricity occupying its own specific place. The aim of this thesis is to reflect on the emergence of a new electricity model, and to determine its features and whether it offers an alternative to the centralised model. Using three perspectives for analysis – institutional, technological and regional – this thesis demonstrate that this model has had its day. An accumulation of changes has transformed the electricity system, both materially and in relation to its organisation: liberalisation, rise of distributed generation, political decentralisation, and so on. The new configuration currently under production is the result of contradictory socio-technical pressures; these are creating a hybrid system between a general trend towards decentralisation on one side and mechanisms for political-administrative centralisation and technico-economic concentration on the other.The state has lost its monopoly but not its central position, even though the sector has diversified in terms of actors and technologies and become more open to society (access to production, legislative process, etc.). Neither the frustrated progression of EU operations, liberalisation, nor the greater presence of local authorities has thus far been able to entirely undermine the state's ability to position itself at the centre of operational control of the sector. It acts in different ways: withdrawal from operational matters, integration of renewables, finance, R&D, legislation, etc. On occasions it is also interventionist (shareholders, price structures, networks, etc.). In a liberal climate, the state is adapting by undertaking pragmatic reform of its activities and controlling the integration of socio-technical alternatives. This adaptation equates to a greater role for the regional authorities in public energy policy, as local areas continue to gain in importance. These regions and areas are currently defining themselves as indispensable partners of the state – largely on the basis of the bodies for intercommunal cooperation and the regional councils – for the management and implementation of a multitude of processes and technical measures at sub-national level. In parallel, they wish to assert their importance in the sector and can make use of their levers for operational control (planning, support for renewables, etc.) Today, they have still only appropriated the terrain partially and unevenly, but this strong trend means that local is the sector's new horizon, including for the state, which is adapting the organisation of its administration around the regions. And so a process, which is legal in nature and organised by the state is at work, whereby the administrations gain in autonomy to form an unhindered energy administration which cannot be reduced to a capacity to produce energy. The new boundary lines resulting from this growing autonomy are ultimately drawing up institutional territories which pose no challenge to the national scale or the role of the state.This hybrid character arises from technico-economic concentration mechanisms which are specific to the electricity network industry and its context and from rationales concerning space and territories which are connected to infrastructural factors. They result in particular from the counterintuitive deployment of distributed generation carried out in a mixed centralised/decentralised manner, highlighting the interaction between forms of control and socio-technical conditions (spatialisation conditions, concentration of actors, etc).With regard to regulation, the configuration currently emerging presents a balance between shortage/decentralisation and continuity/centralisation. Account taken of developments to come in the areas of storage and new information and communication technologies, it is nevertheless probable that this configuration will only be a long progression towards a new energy model
Gérard, Jean-François. "Autonomie des systèmes biologiques et évolution. Considérations théoriques et application à l'éco-éthologie des ongulés sauvages : [thèse en partie soutenue sur un ensemble de travaux]". Toulouse 3, 1993. http://www.theses.fr/1993TOU30278.
Pełny tekst źródłaCadieux-Pinsonnault, Eugénie. "Développement d'une dimension sociale au Système de mesure de L'autonomie fonctionnelle". Sherbrooke : Université de Sherbrooke, 2001.
Znajdź pełny tekst źródłaRudametkin, Ivey Walter Andrew. "Robusta : une approche pour la construction d'applications dynamiques". Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-00957942.
Pełny tekst źródłaKahboub, Abdelkrim. "Pour un enseignement/apprentissage en autodirection dans le système universitaire algérien". Thesis, Bourgogne Franche-Comté, 2018. http://www.theses.fr/2018UBFCC021/document.
Pełny tekst źródłaFor the sake of this research, we intend to reflect upon the materials that we can establish in order to enhance autonomy in language teaching /learning within the context of FOS (Français sur objectifs spécifiques : French specific pruposes). The existing concepts do not seem to coordinate with the first year technology and sciences students’ needs.The main objective of our research is to bring a contribution to the principle of self-directed learning. We aimed to go beyond theory and to reflect upon the feasibility and the practice of the concepts that create the bound between learners autonomy and FOS ; focus on learning, contribution of neurosciences and cognitivism.The research findings have enabled us to:- review/ reconsider some key concepts of autonomy and self-directed learning through the experiment conducted with our students.- present some practical applications of the principles that we have examined
Camus, Mickaël. "Système auto-adaptatif générique pour le contrôle de robots ou d'entités logicielles". Paris 6, 2007. http://www.theses.fr/2007PA066308.
Pełny tekst źródłaKhomiakoff, René. "Handicap moteur et système d'aide robotisé : une approche psychologique de la personne en situation de handicap". Amiens, 2007. http://www.theses.fr/2007AMIE0021.
Pełny tekst źródłaBéranger, Jérôme. "Modèle d'analyse éthique des systèmes d'information en santé appliqué à la Cancérologie". Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM5017.
Pełny tekst źródłaNew information and communication technologies (NICT) are transforming the practice of medicine. Information systems (IS) appear complexes to most of users. What are the data hosted? Who can I transfer them? It is clear that patients as well as health professionals are struggling to locate in these new devices sprawling computerized exchanges. Physicians have to communicate through electronic media with patients? How do they communicate with each other? The health information circulating on the networks are secure? Certainly, development of communication tools is a chance to improve the quality of monitoring and management of patients. However, we still lack a step back and readability. However, this relative electronic opacity presents, at the end, risks to the practice of medicine need to know ahead, starting with the suspicion cast on medical confidentiality is the cornerstone of the special dialogue. On a methodological level, this research defines its object of study, being confined to the "patient circuit" of the cancer sector. Survey work on the needs of health professionals was conducted in health facilities in the Bouches-du-Rhone. He served in the implementation of an ethical model of IS based on the basis of four principles of biomedical ethics: autonomy, beneficence, non-maleficence, justice. The interest of this model is generating scores and ethical charter on initial expectations, the final realization and the means involved in the development of an IS in oncology. This thesis attempts to show that it is possible to reconcile ethics and technology by converting the technical language in the terminology of ethics