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Academic literature on the topic 'Réplication de la machine d'état'
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Journal articles on the topic "Réplication de la machine d'état"
Krtolica, Igor. "Secret d'état et machine de guerre secrète chez Gilles Deleuze." Theoria, Beograd 50, no. 2 (2007): 47–64. http://dx.doi.org/10.2298/theo0702047k.
Full textTremblay, Klaire. "La technologie langagière au Secrétariat d’État du Canada : une réalité quotidienne." Meta 37, no. 4 (September 30, 2002): 761–69. http://dx.doi.org/10.7202/004506ar.
Full textVaudour, Emmanuelle, Paul-Emile Noirot-Cosson, and Olivier Membrive. "Apport des images satellitaires de très haute résolution spatiale Pléiades à la caractérisation des cultures et des opérations culturales en début de saison." Revue Française de Photogrammétrie et de Télédétection, no. 208 (September 5, 2014): 97–103. http://dx.doi.org/10.52638/rfpt.2014.106.
Full textDissertations / Theses on the topic "Réplication de la machine d'état"
Nehme, Mohamad Jaafar. "Next generation state-machine replication protocols for data centers." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAM077/document.
Full textMany uniform total order broadcast protocols have been designed in the last 30 years. They can be classified into two categories: those targeting low latency, and those targeting high throughput. Latency measures the time required to complete a single message broadcast without contention, whereas throughput measures the number of broadcasts that the processes can complete per time unit when there is contention. All the protocols that have been designed so far make the assumption that the underlying network is not shared by other applications running. This is a major concern provided that in modern data centers (aka Clouds), the networking infrastructure is shared by several applications. The consequence is that, in such environments, uniform total order broadcast protocols exhibit unstable behaviors.In this thesis, I provide two contributions. The first contribution is MDC-Cast a new protocol for total order broadcasts in which it optimizes the performance of distributed systems when executed in multi-data center environments. MDC-Cast combines the benefits of IP-multicast in cluster environments and TCP/IP unicast to get a hybrid algorithm that works perfectly in between datacenters.The second contribution is an algorithm designed for debugging performance in black-box distributed systems. The algorithm is not published yet due to the fact that it needs more tests for a better generalization
Tonkikh, Andrei. "Distributed computing for blockchains and beyond." Electronic Thesis or Diss., Institut polytechnique de Paris, 2024. http://www.theses.fr/2024IPPAT041.
Full textIn this dissertation, we address three major challenges in the design of blockchain systems in particular and large-scale fault-tolerant distributed systems in general. This work aims at improving the performance of such systems directly, as well as providing useful tools for future development of distributed algorithms.First, we explore the limits of what can be done with minimal synchronization by designing CryptoConcurrency—an asset transfer system that, instead of totally ordering all users' requests, processes concurrent requests in parallel as much as possible. Unlike other similar systems, in CryptoConcurrency, we allow the users to have shared accounts and do not make the unrealistic assumption that an honest user's account is never accessed from two devices concurrently. CryptoConcurrency explores novel theoretical grounds by addressing transaction conflicts in a dynamic, non-pairwise manner, allowing the owners of each account to independently choose their preferred mechanism for conflict resolution. Then, we improve the performance of consensus—the synchronization problem at the heart of most practical distributed systems. We build the first consensus protocol that manages to combine two desirable properties: extremely fast termination in favorable conditions and graceful recovery when such conditions are not met. The design involves a novel type of cryptographic proofs, with an efficient practical implementation.Finally, we set out to tackle the problem of designing efficient distributed protocols with weighted participation. To this end, we define several new optimization problems, related to reducing or, in other words, quantizing the weights of the participants in a way that preserves important structural properties. We show how to apply them to make weighted-model variants of a large class of distributed protocols with very little overhead compared to their counterparts in the simpler non-weighted model. For these optimization problems, we prove upper bounds, provide a practical open-source approximate solver that satisfies these upper bounds, and perform an empirical study on the weight distributions from real-world blockchain systems
Salloum, Georges. "Contribution à la commande robuste de la machine asynchrone à double alimentation." Phd thesis, Toulouse, INPT, 2007. http://oatao.univ-toulouse.fr/7534/1/salloum.pdf.
Full textWesterholt, Eckart Graf von. "Commande non linéaire d'une machine asynchrone : filtrage étendu du vecteur d'état : contrôle de la vitesse sans capteur mécanique." Toulouse, INPT, 1994. http://www.theses.fr/1994INPT050H.
Full textQuéma, Vivien. "Contributions to Building Efficient and Robust State-Machine Replication Protocols." Habilitation à diriger des recherches, Université de Grenoble, 2010. http://tel.archives-ouvertes.fr/tel-00540897.
Full textChampagne, Roger. "Simulation en temps réel à l'aide de la représentation d'état : application à un entraînement électrique basé sur une machine asynchrone." Mémoire, École de technologie supérieure, 2001. http://espace.etsmtl.ca/838/1/CHAMPAGNE_Roger.pdf.
Full textRatel, Christophe. "Définition et réalisation d'un outil de vérification formelle de programmes LUSTRE." Phd thesis, Grenoble 1, 1992. http://tel.archives-ouvertes.fr/tel-00341223.
Full textDib, Abdou. "Observation et Commande de la Machine Asynchrone." Phd thesis, Université de Caen, 2012. http://tel.archives-ouvertes.fr/tel-01064016.
Full textHajji, Sofien. "Modélisation, observation et commande de la machine asynchrone." Phd thesis, Université de Caen, 2009. http://tel.archives-ouvertes.fr/tel-01058792.
Full textBouderbala, Kamélia. "Mise en oeuvre d'une régulation thermique sur une machine de mesure dimensionnelle de très haute exactitude. Utilisation d'un modèle d'ordre faible en boucle fermée." Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2015. http://www.theses.fr/2015ESMA0017/document.
Full textThis thesis describes the modelling and real-time regulation of the temperature inside an apparatus developed to validate the design principles of a cylindricity measurement machine at the Laboratoire Commun de Métrologie du Laboratoire national de métrologie et d’essais – Conservatoire national des arts et métiers. To study the effect of internal and external perturbations on the behaviour of the system, the apparatus is equipped with 19 platinum resistance thermometers calibrated with respect to the national standard. The effect of perturbations on the behaviour of capacitive displacement sensors has also been studied. The effect of internal perturbations generated by the mechanical guide rails was simulated using three film resistive heaters. Finite element modeling of the system temperature was carried out and the numerical results compared with experiment. The offsets about 0.1°C are too large for the model to be used for real-time temperature control. Subsequently, a reduced model wasdeveloped based on experimental data using the modal identification method (MIM). The residual obtained when its results are compared with experiment is 0.003°C. Finally, a temperature servo implemented using predictive control combined with a Kalman filter