Literatura académica sobre el tema "Calcul distribué codé"
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Artículos de revistas sobre el tema "Calcul distribué codé"
Leonov, Denis V., Roman V. Reshetnikov, Nikolas S. Kulberg, Anastasia A. Nasibullina y Alexandr I. Gromov. "DOPPLER TWINKLING ARTIFACT OBSERVATIONS: AN OPEN-ACCESS DATABASE OF RAW ULTRASONIC SIGNALS". Digital Diagnostics, 27 de septiembre de 2021. http://dx.doi.org/10.17816/dd76511.
Texto completoTesis sobre el tema "Calcul distribué codé"
Parrinello, Emanuele. "Fundamental Limits of Shared-Cache Networks". Electronic Thesis or Diss., Sorbonne université, 2021. http://www.theses.fr/2021SORUS491.
Texto completoIn the context of communication networks, the emergence of predictable content has brought to the fore the use of caching as a fundamental ingredient for handling the exponential growth in data volumes. This thesis aims at providing the fundamental limits of shared-cache networks where the communication to users is aided by a small set of caches. Our shared-cache model, not only captures heterogeneous wireless cellular networks, but it can also represent a model for users requesting multiple files simultaneously, and it can be used as a simple yet effective way to deal with the so-called subpacketization bottleneck of coded caching. Furthermore, we will also see how our techniques developed for caching networks can find application in the context of heterogeneous coded distributed computing
Brunero, Federico. "Unearthing the Impact of Structure in Data and in Topology for Caching and Computing Networks". Electronic Thesis or Diss., Sorbonne université, 2022. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2022SORUS368.pdf.
Texto completoCaching has shown to be an excellent expedient for the purposes of reducing the traffic load in data networks. An information-theoretic study of caching, known as coded caching, represented a key breakthrough in understanding how memory can be effectively transformed into data rates. Coded caching also revealed the deep connection between caching and computing networks, which similarly show the same need for novel algorithmic solutions to reduce the traffic load. Despite the vast literature, there remain some fundamental limitations, whose resolution is critical. For instance, it is well-known that the coding gain ensured by coded caching not only is merely linear in the overall caching resources, but also turns out to be the Achilles heel of the technique in most practical settings. This thesis aims at improving and deepening the understanding of the key role that structure plays either in data or in topology for caching and computing networks. First, we explore the fundamental limits of caching under some information-theoretic models that impose structure in data, where by this we mean that we assume to know in advance what data are of interest to whom. Secondly, we investigate the impressive ramifications of having structure in network topology. Throughout the manuscript, we also show how the results in caching can be employed in the context of distributed computing
Smith, Guillaume. "Concevoir des applications temps-réel respectant la vie privée en exploitant les liens entre codes à effacements et les mécanismes de partages de secrets". Thesis, Toulouse, ISAE, 2014. http://www.theses.fr/2014ESAE0045/document.
Texto completoData from both individuals and companies is increasingly aggregated and analysed to provide new and improved services. There is a corresponding research effort to enable processing of such data in a secure and privacy preserving way, in line with the increasing public concerns and more stringent regulatory requirements for the protection of such data. Secure Multi-Party Computation (MPC) and secret sharing are mechanisms that can enable both secure distribution and computations on private data. In this thesis, we address the inefficiencies of these mechanisms by utilising results from a theoretically related rich area, erasure codes. We derive links between erasure codes and secret sharing, and use Maximum Distance Separable (MDS) codes as a basis to provide real-time applications relying on private user's data, revealing this data only to the selected group (which can be empty). The thesis has three contributions. A new class of erasure code called on-the-fly coding, have been introduced for their improvements in terms of recovery delay and achievable capacity. However little is known about the complexity of the systematic and non-systematic variants of this code, notably for live multicast transmission of multimedia content which is their ideal use case. The evaluation of both variants demonstrate that the systematic code outperforms the non-systematic one in regard to both the buffer sizes and the computation complexity. Then, we propose a new Layered secret sharing scheme and its application to Online Social Network (OSN). In current OSN, access to the user's profile information is managed by the service provider based on a limited set of rules. The proposed scheme enables automated profile sharing in OSN's groups with fine grained privacy control, via a multi-secret sharing scheme comprising of layered shares, without relying on a trusted third party. We evaluate the security of the scheme and the resulting profile's level of protection in an OSN scenario. Finally, after showing that erasure codes are efficient for real-time applications and that the security offered by secret sharing schemes can be applied to real-case applications, we derive the theoretical links between MDS codes and secret sharing to enable the implementation of efficient secret sharing scheme built from MDS codes. To illustrate this efficiency, we implement two of these schemes and evaluate their benefits in regard to computation and communication costs in an MPC application
Quilbeuf, Jean. "Implantations distribuées de modèles à base de composants communicants par interactions multiparties avec priorités : application au langage BIP". Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-00947636.
Texto completoNoaje, Gabriel. "UN ENVIRONNEMENT PARALLÈLE DE DÉVELOPPEMENT HAUT NIVEAU POUR LES ACCÉLÉRATEURS GRAPHIQUES : MISE EN OEUVRE À L'AIDE D'OPENMP". Phd thesis, Université de Reims - Champagne Ardenne, 2013. http://tel.archives-ouvertes.fr/tel-00822285.
Texto completoSaied, Mariem. "Automatic code generation and optimization of multi-dimensional stencil computations on distributed-memory architectures". Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAD036/document.
Texto completoIn this work, we present Dido, an implicitly parallel domain-specific language (DSL) that captures high-level stencil abstractions and automatically generates high-performance parallel stencil code for distributed-memory architectures. The generated code uses ORWL as a communication and synchronization backend. We show that Dido achieves a huge progress in terms of programmer productivity without sacrificing the performance. Dido supports a wide range of stencil computations and real-world stencil-based applications. We show that the well-structured code generated by Dido lends itself to different possible optimizations and study the performance of two of them. We also combine Dido's code generation technique with the polyhedral loop optimizer Pluto to increase data locality and improve intra-node data reuse. We present experiments that prove the efficiency and scalability of the generated code that outperforms both ORWL and MPI hand-crafted implementations
Antonio, Wendell De Oliveira Rodrigues. "Une Méthodologie pour le Développement d'Applications Hautes Performances sur des Architectures GPGPU: Application à la Simulation des Machines Éléctriques". Phd thesis, Université des Sciences et Technologie de Lille - Lille I, 2012. http://tel.archives-ouvertes.fr/tel-00670221.
Texto completoActas de conferencias sobre el tema "Calcul distribué codé"
Lefrancois, Emmanuel, Jean-Paul Boufflet y Sébastien Bigot. "Applications des techniques de calculs distribués à un code de calcul de houle aléatoire". En Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 2004. http://dx.doi.org/10.5150/jngcgc.2004.042-l.
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