Search results for "working"

showing 10 items of 2747 documents

Embedded multi-spectral image processing for real-time medical application

2016

International audience; The newly introduced Kubelka-Munk Genetic Algorithm (KMGA) is a promising technique for the assessment of skin lesions from multi-spectral images. Using five skin parameter maps such as concentration or epidermis/dermis thickness, this method combines the Kubelka-Munk Light-Tissue interaction model and Genetic Algorithm optimization process to produce a quantitative measure of cutaneous tissue. Up to the present, variant improved KMGA implementations have been successfully realized using the recent parallel computing techniques. However, all these achievements are based on the multi-core CPUs. This results in a quite high cost and low practicability for the hardware …

[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR]Digital signal processorSource code[ INFO ] Computer Science [cs]Computer sciencemedia_common.quotation_subject[INFO.INFO-DS]Computer Science [cs]/Data Structures and Algorithms [cs.DS]Image processing02 engineering and technologyARCHITECTURESLight-Tissue InteractionGenetic algorithm0202 electrical engineering electronic engineering information engineering[INFO]Computer Science [cs]Embedded SystemField-programmable gate arrayFPGA[ INFO.INFO-DS ] Computer Science [cs]/Data Structures and Algorithms [cs.DS]media_commonFlexibility (engineering)Multi-spectral image processingGenetic AlgorithmHigh-Level Synthesis FPGA IMPLEMENTATIONbusiness.industryProcess (computing)020206 networking & telecommunicationsTransplantationMODELComputer engineeringHardware and ArchitectureEmbedded system020201 artificial intelligence & image processing[ INFO.INFO-AR ] Computer Science [cs]/Hardware Architecture [cs.AR]businessHigh-Level SynthesisSoftware
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Network architectures and energy efficiency for high performance data centers

2017

The increasing trend to migrate applications, computation and storage into more robust systems leads to the emergence of mega data centers hosting tens of thousands of servers. As a result, designing a data center network that interconnects this massive number of servers, and providing efficient and fault-tolerant routing service are becoming an urgent need and a challenge that will be addressed in this thesis. Since this is a hot research topic, many solutions are proposed like adapting new interconnection technologies and new algorithms for data centers. However, many of these solutions generally suffer from performance problems, or can be quite costly. In addition, devoted efforts have n…

[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR][INFO.INFO-AR] Computer Science [cs]/Hardware Architecture [cs.AR]Qualité de service[INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI][INFO.INFO-DS]Computer Science [cs]/Data Structures and Algorithms [cs.DS]Scalability[INFO.INFO-DS] Computer Science [cs]/Data Structures and Algorithms [cs.DS]Centres de donnéesAlgorithmes de routage[INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI]Quality of servicePower efficiencyData centerConsommation d’énergieRouting
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Arbres couvrants presque disjoints

2015

International audience; Dans un réseau, la recherche de plusieurs arbres couvrants avec des propriétés intéressantes a amené à l'introduc-tion de plusieurs notions : les arbres couvrants arête-disjoints, les arbres indépendants enracinés en un sommet et les arbres complètement indépendants. Afin de généraliser ces notions, nous introduisons la notion d'arbres couvrants (i, j)-disjoints, où i et j sont respectivement le nombre maximum de noeuds internes et d'arêtes communs aux arbres couvrants. Nous montrons que déterminer s'il existe deux arbres couvrants (i, j)-disjoints dans un graphe G est un problème NP-complet pour i et j quelconques, et nous déterminons les valeurs minimales de i et j…

[INFO.INFO-DM] Computer Science [cs]/Discrete Mathematics [cs.DM][INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI]Arbres couvrantsArbres couvrants com-plètement indépendants[INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI][ INFO.INFO-NI ] Computer Science [cs]/Networking and Internet Architecture [cs.NI]Ensembles dominants connexes[ INFO.INFO-DM ] Computer Science [cs]/Discrete Mathematics [cs.DM][INFO.INFO-DM]Computer Science [cs]/Discrete Mathematics [cs.DM]Arbres couvrants arête-disjointsArbres couvrants indépendants
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Presentations of constrained systems with unconstrained positions

2005

International audience; We give a polynomial-time construction of the set of sequences that satisfy a finite-memory constraint defined by a finite list of forbidden blocks, with a specified set of bit positions unconstrained. Such a construction can be used to build modulation/error-correction codes (ECC codes) like the ones defined by the Immink-Wijngaarden scheme in which certain bit positions are reserved for ECC parity. We give a lineartime construction of a finite-state presentation of a constrained system defined by a periodic list of forbidden blocks. These systems, called periodic-finite-type systems, were introduced by Moision and Siegel. Finally, we present a linear-time algorithm for con…

[INFO.INFO-DS]Computer Science [cs]/Data Structures and Algorithms [cs.DS]finite-memory systemperiodic-finite-type (PFT) system[INFO.INFO-DS] Computer Science [cs]/Data Structures and Algorithms [cs.DS]0102 computer and information sciences02 engineering and technologyLibrary and Information Sciences01 natural sciencesModulation coding0202 electrical engineering electronic engineering information engineeringMathematicsDiscrete mathematicsChannel codefinite-state encodermodulation codeDAWG020206 networking & telecommunicationsDirected graphDirected acyclic graphforbidden blockComputer Science ApplicationsFinite sequence010201 computation theory & mathematicscodeError detection and correctionrun-length limited (RLL) codesInformation SystemsCoding (social sciences)maximum transition run (MTR)
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A Modularity Backbone Extraction Method for Weighted Complex Networks

2022

The exponential growth in the size of real-world networks is a major barrier to analyzing their structure and dynamics. Thus, reducing the network's size while maintaining its topological features is highly significant. As community structure is one of the fundamental fingerprints of real-world networks, this work proposes a new node-filtering backbone extraction method to preserve the network's community structure.

[INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI]
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QBAIoT: QoS Based Access for IoT Environments

2018

[INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI]
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Autonomic Computing and VANETs

2017

[INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI][INFO] Computer Science [cs]
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Robust control of networks under discrete disturbances and controls

2011

We consider dynamic networks where the disturbances and control actions take discrete values. We briefly survey some of our recent results establishing necessary and sufficient conditions for the existence of robustly globally invariant (hyper box) sets, as well as sufficient conditions for global attractivity of such sets.We then establish connections between these results and existing results in the literature for the setup where all the inputs are analog. Finally, we derive tight upper and lower bounds on the smallest such set in the special case of a degenerate network.

[INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI]control and optimization
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Étude et optimisation d'un système d'annulation d'écho pour répéteur de radiocommunication

2012

International audience; Le phénomène d'écho en radio-fréquence (RF) se produit au sein d'un répéteur iso-fréquence (IF) lorsque l'isolation entre l'antenne d'émission et l'antenne de réception est insuffisante. L'objectif de ces travaux est de trouver un système d'identification et d'annulation d'écho, en se basant sur le traitement avancé du signal. Cette solution doit être implémenatable matériellement, sur un cir- cuit programmable type FPGA, l'objectif est de travailler en temps réel. La vitesse de convergence des algorithmes, leurs coûts en terme de ressources matérielles et leurs robustesses aux bruits font partie de l'optimisation recherchée. Cette solution doit être utilisable pour …

[INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI][ INFO.INFO-TS ] Computer Science [cs]/Signal and Image Processing[INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing[INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI][INFO.INFO-TS] Computer Science [cs]/Signal and Image Processing[ INFO.INFO-NI ] Computer Science [cs]/Networking and Internet Architecture [cs.NI][ SPI.SIGNAL ] Engineering Sciences [physics]/Signal and Image processing[SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing[SPI.SIGNAL] Engineering Sciences [physics]/Signal and Image processing
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Stratégie à base d'agents pour une meilleure gestion de l'énergie dans les réseaux intelligents du futur

2015

International audience; La nécessité croissante de l'utilisation des énergies renouvelables et de l'obligation de réduire les émissions de gaz à effet de serre ont conduit à l'évolution du réseau électrique traditionnel vers le réseau intelligent (smart-grid). Les Technologies d'Informations et de Communication (TICs) sont des facteurs incontournables pour la mise en œuvre et le développement de ce nouveau réseau car ils permettent les interactions entre l'informatique et les éléments physiques du réseau intelligent. En effet, les technologies d'informations et de communication offrent des algorithmes de gestion de l'énergie et permettent l'intégration des énergies renouvelables et la minim…

[INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI][INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI]
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