Letteratura scientifica selezionata sul tema "Théorie des trafics"
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Articoli di riviste sul tema "Théorie des trafics"
Bouët, Antoine. "La théorie économique du protectionnisme en 1950". Revue économique 51, n. 5 (1 settembre 2000): 1281–96. http://dx.doi.org/10.3917/reco.p2000.51n5.1281.
Testo completoOlivier, Charline. "Ni breaking bad ni prison break . À qui profite le trafic de stupéfiants en détention ?" Sociographe N° 85, n. 1 (15 febbraio 2024): 137–54. http://dx.doi.org/10.3917/graph1.085.0137.
Testo completoMonteil, Julien, Romain Billot e Nour-Eddin El Faouzi. "Véhicules coopératifs pour une gestion dynamique du trafic : approche théorique et simulation". Rech. Transp. Secur. 2013, n. 01 (marzo 2013): 47–58. http://dx.doi.org/10.4074/s0761898013001040.
Testo completoJonckheere, Edmond, e Pascal Ray. "Contrôle du trafic sur les réseaux à géométrie hyperbolique. Vers une théorie géométrique de la sécurité de l'acheminement de l'information". Journal Européen des Systèmes Automatisés 37, n. 2 (febbraio 2003): 145–59. http://dx.doi.org/10.3166/jesa.37.145-159.
Testo completoBENZIDIA, Smaïl, e Omar BENTAHAR. "Numéro Spécial ¨PROLOG : La digitalisation des supply chains : défis et bénéfices". Revue Française de Gestion Industrielle 37, n. 2 (31 ottobre 2023): 3–6. http://dx.doi.org/10.53102/2023.37.02.1192.
Testo completoPoulin, Richard. "Prostitution et traite des êtres humains : controverses et enjeux". Hors thème, n. 45 (4 maggio 2011): 135–54. http://dx.doi.org/10.7202/1002503ar.
Testo completoHenriet, Dominique. "Externalité d’encombrement et tarification au trafic: approche théorique des justifications et de la vulnérabilité par la concurrence". Annales des Télécommunications 42, n. 1-2 (gennaio 1987): 13–19. http://dx.doi.org/10.1007/bf02996164.
Testo completoPicoux, B., e D. Le Houédec. "Étude théorique et expérimentale de la propagation des vibrations émises par un trafic ferroviaire se déplaçant à vitesse constante". Journal de Physique IV (Proceedings) 12, n. 11 (dicembre 2002): 111–18. http://dx.doi.org/10.1051/jp4:20020482.
Testo completoBertrand, Régis. "Estudio de los cementerios franceses contemporáneos. Los problemas de método". Revista Trace, n. 58 (9 luglio 2018): 71. http://dx.doi.org/10.22134/trace.58.2010.371.
Testo completoDecoupigny, Christophe. "The TUREP model: micro-scale simulation of pollutants emissions". Les Cahiers Scientifiques du Transport - Scientific Papers in Transportation 52 | 2007 (30 novembre 2007). http://dx.doi.org/10.46298/cst.12063.
Testo completoTesi sul tema "Théorie des trafics"
Beylot, André-Luc. "Modèles de trafics et de commutateurs pour l'évaluation de la perte et du délai dans les réseaux ATM". Paris 6, 1993. http://www.theses.fr/1993PA066311.
Testo completoDabo, Issa-Mbenard. "Applications de la théorie des matrices aléatoires en grandes dimensions et des probabilités libres en apprentissage statistique par réseaux de neurones". Electronic Thesis or Diss., Bordeaux, 2025. http://www.theses.fr/2025BORD0021.
Testo completoThe functioning of machine learning algorithms relies heavily on the structure of the data they are given to study. Most research work in machine learning focuses on the study of homogeneous data, often modeled by independent and identically distributed random variables. However, data encountered in practice are often heterogeneous. In this thesis, we propose to consider heterogeneous data by endowing them with a variance profile. This notion, derived from random matrix theory, allows us in particular to study data arising from mixture models. We are particularly interested in the problem of ridge regression through two models: the linear ridge model and the random feature ridge model. In this thesis, we study the performance of these two models in the high-dimensional regime, i.e., when the size of the training sample and the dimension of the data tend to infinity at comparable rates. To this end, we propose asymptotic equivalents for the training error and the test error associated with the models of interest. The derivation of these equivalents relies heavily on spectral analysis from random matrix theory, free probability theory, and traffic theory. Indeed, the performance measurement of many learning models depends on the distribution of the eigenvalues of random matrices. Moreover, these results enabled us to observe phenomena specific to the high-dimensional regime, such as the double descent phenomenon. Our theoretical study is accompanied by numerical experiments illustrating the accuracy of the asymptotic equivalents we provide
Izagirre, Ane. "Interpolation approximations for steady-state performance measures". Thesis, Toulouse, INSA, 2015. http://www.theses.fr/2015ISAT0019/document.
Testo completoThe analysis of the steady-state performance in many queuing systems is complex and closed-form results are available only in particular cases. We therefore set out to develop approximations for important performance measures in steady-state such as the queue length vector, waiting time and sojourn time. We first analyse the performance in a light-traffic and heavy-traffic regime. We then show how to develop an interpolation-based approximation that is valid for any load in the system. An advantage of the approach taken is that it is not model dependent and hence could potentially be applied to other complex queuing models. We apply this technique to three widely used models in the performance evaluation of stochastic networks: The supermarket model, the Discriminatory-Processor-Sharing (DPS) queue and the Relative Priority (RP) queue. The supermarket model is a multi-server queue where upon arrival of a customer two servers are selected at random from the available pool of servers. The Join-the-Shortest-Queue policy is then used in isolation with these two servers. DPS and RP are both single-server multi-class queues that implement relative priorities among customers of the various classes. The DPS discipline serves all customers simultaneously while RP serves one customer at a time in a non-preemptive way. We show that in some instances the interpolation approximation is exact. We then use the approximation to draw structural insights onto the performance of the system, and we carry out numerical experiments that illustrate that the interpolation approximation is accurate over a wide range of parameters
Schanzenbächer, Florian. "Max-plus modeling of traffic on passenger railway lines with a junction : fundamental diagram and dynamic control". Thesis, Paris Est, 2020. http://www.theses.fr/2020PESC2098.
Testo completoThe aim of the doctoral thesis is to contribute on the developpement of real-time traffic control algorithms for mass transit railway systems with junctions, located in urban areas. The scientific ambition of the doctoral thesis is to develop a traffic model with a finer modelisation of the train-passengers interaction. The model will allow a more precise evaluation of the level of service offered to the passengers and of the decisions taken by the operator of the line. Basing on this modeling, we will develop a control algorithm (strategic/ tactical and operational) in order to enhance the service quality on the line. The objective of the Paris metro system operator, financing this thesis, is to have a ready-to-implement control system for a railway line with a junction
Cuniasse, Pierre-Antoine. "Étude théorique et expérimentale des phénomènes de congestion sur un réseau ferroviaire urbain". Thesis, Vaulx-en-Velin, Ecole nationale des travaux publics, 2015. http://www.theses.fr/2015ENTP0007/document.
Testo completoOver the last twenty years, public transport issues in the Paris region have become a major concern. The French national railway company, which operates most of the rail network in this region, plays a central role in the organisation of transport. However, in contrast to expectations in this sector, rail traffic is experiencing a number of malfunctions. As part of an overall approach to questioning the principles of rail operation in dense areas, this thesis provides a new look at the origin of delays affecting trains. Drawing on road traffic tools and in particular the basic network diagram, the basic railway line diagram is defined for railways, which makes it possible to represent the flow as a function of concentration on a portion of a railway line. This tool is then used to compare the results from our model with a set of data measured on two railway lines in the Paris region, which shows that our model can qualitatively reproduce the traffic congestion phenomena observed on real cases.(Translated with www.DeepL.com/Translator)
Ayadi, Abdelhamid. "Solutions globales de l'équation du transport routier". Paris 11, 1985. http://www.theses.fr/1985PA112124.
Testo completoThe aim of this work is the study global existence, the unicity and the regularity of the solution of the vehicular traffic equation modelized by Prigogine-Herman. Our purpose is – to study the vehicular traffic equation with relaxation and without any interaction (i. E. The probability of free passage is equal to one), - to study the vehicular traffic equation without relaxation and with interactions, - to study the vehicular traffic equation (i. E. With relaxation and interactions)
Zitoune, Lynda. "Approche automatique de l'ingénierie de trafic Internet". Paris 11, 2006. http://www.theses.fr/2006PA112138.
Testo completoThe integration of multimedia applications within telecommunications services has stressed the need for both Quality of Service architectures and effective traffic control mechanisms. To ensure performance guarantees in terms of loss, delay and jitter are a critical problem ofthe next generation networks. It involves a reactive control policy which adapts the source rate to the network state variations. In this thesis, we introduce two new reactive mechanisms for controlling multimedia flows over a QoS architecture. They act as a closed loop to control the sources bit-rates according to the dynamic variations of the network. The regulation consists in limiting the traffic sources andrespecting the time and loss constraints. The objective of the present work is twofold. We first propose solutions for resource allocation and service guarantees in future networks. Secondly we show the contribution of the reactive control and the dynamic regulation using purely control theoretic approaches which stabilize the network and avoid undesirable oscillations for the transmission of critical flows, contrary to the currently used end-to-end control to avoid the congestion
Herrera, Vega Eliana. "Le trafic de drogues dans la perspective de la philosophie sociale". Paris 8, 2003. http://www.theses.fr/2003PA082356.
Testo completoDrug traffic is an informational paradox caused by the encounter of organized modern complexity with non modern societies, depriving men from their capacity of judgment and direct action upon society. The starting point is the complexity of society, followed by an analysis of the sources and of the theory of systemic development (Luhmann, 1970) and continued with an explanation of the relationships between systems based on the concept of interference (Teubner, 1983). The core of the thesis is divided in two. First, we evaluate a particular experience: Colombia's history, and second, there is a theoretical analysis that spells out the patterns of global capitalism within the world scope of drug trafficking
Barrière, Nicolas. "Etude théorique et expérimentale de la propagation du bruit de trafic en forêt". Ecully, Ecole centrale de Lyon, 1992. http://www.theses.fr/1992ECDLA001.
Testo completoThis work presents a new calculation method for the attenuation of road traffic noise by forests. It allows the calculation of the different effects that influence sound along its propagation in forests : ground effect due to humus, trunk scattering effect and effect induced by the statibilisation of meteorological conditions within the forest. A new analytical scattering model based on a modal decomposition of the trunk scattered energy has been also developed. It has enabled to test the validity of the simplified statistical models. The calculation model of the forest effect is based on a fast implementation of the Parabolic Equation in 2D. Being applied to the calculation of sound pressure level next to a road, it has shown that for a 100 m wide forest belt and night meteorological conditions, one can obtain an attenuation of severel dB(A) referred to a plain field. Moreover, a 3D version of the Parabolic Equation has been applied to forests and has permitted to estimate interactions between ground effect, scattering effect and meteorological effect. Finally, in-situ measurements has been carried out in the French Landes forest in order to validate the complete model
Prot, Damien. "Un nouveau système de trafic aérien à taux de conflits potentiels et consommation énergétique réduits". Grenoble INPG, 2009. http://www.theses.fr/2009INPG0097.
Testo completoLn this Ph D, we propose the study of a new air traffic system, characterized by a high level of organization. Aircraft are compelled to follow immaterial moving points during their flight. These moving points are organized and sequenced in order to avoid conflicts between aircraft. We consider an underlying problem of this paradigm. It can be seen as a maximum independent set problem on an infinite graph under constraints. We first give theoretical results on this problem and make links with the colouration problem; then we propose resolution heuristics, leading to a global air traffic system. Finally, we develop these heuristics and expose numerical results
Libri sul tema "Théorie des trafics"
1956-, Huston Geoff, a cura di. Quality of service: Delivering QoS on the Internet and in corporate networks. New York: Wiley, 1998.
Cerca il testo completoElements of Queues and Performance Analysis of Computer Networks. Chapman & Hall/CRC, 2008.
Cerca il testo completoGarrow, Laurie A. Discrete Choice Modelling and Air Travel Demand: Theory and Applications. Taylor & Francis Group, 2016.
Cerca il testo completoDiscrete choice modelling and air travel demand: Theory and applications. Farnham, Surrey: Ashgate, 2010.
Cerca il testo completoIsrael) IEEE INFOCOM (19th : 2000 : Tel Aviv. 2000 IEEE Infocom. IEEE Computer Society Press, 2000.
Cerca il testo completoGoldberg, Tod, Brad Meltzer, Scott Brick e January LaVoy. The House of Secrets. Hachette Book Group, 2016.
Cerca il testo completoGoldberg, Tod, e Brad Meltzer. House of Secrets. Grand Central Publishing, 2016.
Cerca il testo completoGoldberg, Tod, e Brad Meltzer. The House of Secrets. Grand Central Publishing, 2017.
Cerca il testo completoGoldberg, Tod, e Brad Meltzer. House of Secrets. Grand Central Publishing, 2017.
Cerca il testo completoCapitoli di libri sul tema "Théorie des trafics"
LEBEDEV, Eugene, e Hanna LIVINSKA. "Limites de diffusion et gaussiennes pour les réseaux de files d’attente multicanaux". In Théorie des files d’attente 1, 207–46. ISTE Group, 2021. http://dx.doi.org/10.51926/iste.9001.ch7.
Testo completoDEJEAN DE LA BÂTIE, Alice. "A l’aube de l’ère pénale sanitaire". In Les épidémies au prisme des SHS, 251–55. Editions des archives contemporaines, 2022. http://dx.doi.org/10.17184/eac.6011.
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