Littérature scientifique sur le sujet « Largeur infinie »
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Articles de revues sur le sujet "Largeur infinie"
Boczar, J., A. Dorobczynski et J. Miakotoi. « Modèle de transfert et de diffusion de masse dans un écoulement, en présence de gradients de vitesse et de gradients du coefficient de diffusion turbulente ». Revue des sciences de l'eau 5, no 3 (12 avril 2005) : 353–79. http://dx.doi.org/10.7202/705136ar.
Texte intégralShen, Luming, Yiying Yu et Yuxin Zhou. « A note on the largest digits in Lüroth expansion ». International Journal of Number Theory 10, no 04 (21 mai 2014) : 1015–23. http://dx.doi.org/10.1142/s1793042114500122.
Texte intégralTiwana, Mazhar Hussain, Rab Nawaz et Amer Bilal Mann. « Radiation of sound in a semi-infinite hard duct inserted axially into a larger infinite lined duct ». Analysis and Mathematical Physics 7, no 4 (12 novembre 2016) : 525–48. http://dx.doi.org/10.1007/s13324-016-0154-4.
Texte intégralBüyükaksoy, A., et A. Demir. « Radiation of sound from a semi-infinite rigid duct inserted axially into a larger infinite tube with wall impedance discontinuity ». ZAMM 86, no 7 (3 juillet 2006) : 563–71. http://dx.doi.org/10.1002/zamm.200510262.
Texte intégralLiu, Li, et Hairong Yuan. « Steady subsonic potential flows through infinite multi-dimensional largely-open nozzles ». Calculus of Variations and Partial Differential Equations 49, no 1-2 (6 novembre 2012) : 1–36. http://dx.doi.org/10.1007/s00526-012-0570-8.
Texte intégralČerný, Radovan, et Vincent Favre-Nicolin. « FOX : A friendly tool to solve nonmolecular structures from powder diffraction ». Powder Diffraction 20, no 4 (décembre 2005) : 359–65. http://dx.doi.org/10.1154/1.2135314.
Texte intégralMacpherson, Dugald, Alan H. Mekler et Saharon Shelah. « The number of infinite substructures ». Mathematical Proceedings of the Cambridge Philosophical Society 109, no 1 (janvier 1991) : 193–209. http://dx.doi.org/10.1017/s0305004100069668.
Texte intégralDemir, A., et Ö. Yanaz Çinar. « Propagation of sound in an infinite two-part duct carrying mean flow inserted axially into a larger infinite duct with wall impedance discontinuity ». ZAMM 89, no 6 (16 juin 2009) : 454–65. http://dx.doi.org/10.1002/zamm.200800145.
Texte intégralAntczak, Tadeusz. « Saddle point criteria in semi-infinite minimax fractional programming under (Φ,ρ)-invexity ». Filomat 31, no 9 (2017) : 2557–74. http://dx.doi.org/10.2298/fil1709557a.
Texte intégralWang, Tian-Yi, et Jiaojiao Zhang. « Low Mach number limit of steady flows through infinite multidimensional largely-open nozzles ». Journal of Differential Equations 269, no 3 (juillet 2020) : 1863–903. http://dx.doi.org/10.1016/j.jde.2020.01.023.
Texte intégralThèses sur le sujet "Largeur infinie"
Hajjar, Karl. « A dynamical analysis of infinitely wide neural networks ». Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASM001.
Texte intégralNeural networks have had tremendous success in many practical tasks over the last decade, yet the theoretical reasons behind their performance are poorly understood and we lack a proper mathematical theory to rigorously study the properties of those objects. Infinite-width limits of neural networks have recently emerged as a way to shed light on some of the aspects of the problem. In this thesis, we study the infinite-width limit of networks of different depths under a particular scaling often referred to as the ''mean-field'' scaling in the literature. Part of the reason why neural networks are difficult to analyze from a theoretical standpoint is because they are highly non-linear and involve a huge amount of parameters, or weights, (up to hundreds of billions in practice) which interact as they are updated during gradient descent. We investigate the optimization trajectories of the infinite-width limit of neural networks during training in order to exhibit properties of those models in simple settings such as fully-connected networks with one or more hidden layers. This thesis focuses on different aspects of the optimization dynamics of networks in the infinite-width limit: from methods to enable training those models at arbitrary depths to the symmetry properties that can emerge in that limit as well as novel optimization algorithms which adapt the number of neurons in an on-line fashion during training
Mens, Irini-Eleftheria. « Learning regular languages over large alphabets ». Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAM052/document.
Texte intégralLearning regular languages is a branch of machine learning, which has been proved useful in many areas, including artificial intelligence, neural networks, data mining, verification, etc. On the other hand, interest in languages defined over large and infinite alphabets has increased in recent years. Although many theories and properties generalize well from the finite case, learning such languages is not an easy task. As the existing methods for learning regular languages depends on the size of the alphabet, a straightforward generalization in this context is not possible.In this thesis, we present a generic algorithmic scheme that can be used for learning languages defined over large or infinite alphabets, such as bounded subsets of N or R or Boolean vectors of high dimensions. We restrict ourselves to the class of languages accepted by deterministic symbolic automata that use predicates to label transitions, forming a finite partition of the alphabet for every state.Our learning algorithm, an adaptation of Angluin's L*, combines standard automaton learning by state characterization, with the learning of the static predicates that define the alphabet partitions. We use the online learning scheme, where two types of queries provide the necessary information about the target language. The first type, membership queries, answer whether a given word belongs or not to the target. The second, equivalence queries, check whether a conjectured automaton accepts the target language, a counter-example is provided otherwise.We study language learning over large or infinite alphabets within a general framework but our aim is to provide solutions for particular concrete instances. For this, we focus on the two main aspects of the problem. Initially, we assume that equivalence queries always provide a counter-example which is minimal in the length-lexicographic order when the conjecture automaton is incorrect. Then, we drop this ``strong'' equivalence oracle and replace it by a more realistic assumption, where equivalence is approximated by testing queries, which use sampling on the set of words. Such queries are not guaranteed to find counter-examples and certainly not minimal ones. In this case, we obtain the weaker notion of PAC (probably approximately correct) learnability and learn an approximation of the target language. All proposed algorithms have been implemented and their performance, as a function of automaton and alphabet size, has been empirically evaluated
Takisaka, Toru. « Large Scale Geometries of Infinite Strings ». Kyoto University, 2018. http://hdl.handle.net/2433/232221.
Texte intégralMallik, Mohammed Tariqul Hassan. « Electromagnetic Field Exposure Reconstruction by Artificial Intelligence ». Electronic Thesis or Diss., Université de Lille (2022-....), 2023. https://pepite-depot.univ-lille.fr/ToutIDP/EDENGSYS/2023/2023ULILN052.pdf.
Texte intégralThe topic of exposure to electromagnetic fields has received muchattention in light of the current deployment of the fifth generation(5G) cellular network. Despite this, accurately reconstructing theelectromagnetic field across a region remains difficult due to a lack ofsufficient data. In situ measurements are of great interest, but theirviability is limited, making it difficult to fully understand the fielddynamics. Despite the great interest in localized measurements, thereare still untested regions that prevent them from providing a completeexposure map. The research explored reconstruction strategies fromobservations from certain localized sites or sensors distributed inspace, using techniques based on geostatistics and Gaussian processes.In particular, recent initiatives have focused on the use of machinelearning and artificial intelligence for this purpose. To overcome theseproblems, this work proposes new methodologies to reconstruct EMFexposure maps in a specific urban area in France. The main objective isto reconstruct exposure maps to electromagnetic waves from some datafrom sensors distributed in space. We proposed two methodologies basedon machine learning to estimate exposure to electromagnetic waves. Forthe first method, the exposure reconstruction problem is defined as animage-to-image translation task. First, the sensor data is convertedinto an image and the corresponding reference image is generated using aray tracing-based simulator. We proposed an adversarial network cGANconditioned by the environment topology to estimate exposure maps usingthese images. The model is trained on sensor map images while anenvironment is given as conditional input to the cGAN model.Furthermore, electromagnetic field mapping based on the GenerativeAdversarial Network is compared to simple Kriging. The results show thatthe proposed method produces accurate estimates and is a promisingsolution for exposure map reconstruction. However, producing referencedata is a complex task as it involves taking into account the number ofactive base stations of different technologies and operators, whosenetwork configuration is unknown, e.g. powers and beams used by basestations. Additionally, evaluating these maps requires time andexpertise. To answer these questions, we defined the problem as amissing data imputation task. The method we propose takes into accountthe training of an infinite neural network to estimate exposure toelectromagnetic fields. This is a promising solution for exposure mapreconstruction, which does not require large training sets. The proposedmethod is compared with other machine learning approaches based on UNetnetworks and conditional generative adversarial networks withcompetitive results
Federici, Bruno. « Interactions between large-scale invariants in infinite graphs ». Thesis, University of Warwick, 2017. http://wrap.warwick.ac.uk/108882/.
Texte intégralWinterfeld, Anton. « Large-scale semi-infinite optimization applied to industrial gemstone cutting ». Berlin dissertation.de, 2007. http://www.dissertation.de/buch.php3?buch=5290.
Texte intégralMaroulas, Vasileios Budhiraja Amarjit. « Small noise large deviations for infinite dimensional stochastic dynamical systems ». Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2008. http://dc.lib.unc.edu/u?/etd,1779.
Texte intégralTitle from electronic title page (viewed Sep. 16, 2008). " ... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Statistics and Operations Research Statistics." Discipline: Statistics and Operations Research; Department/School: Statistics and Operations Research.
He, Ruojun. « Square Coded Aperture : A Large Aperture with Infinite Depth of Field ». University of Dayton / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1418078808.
Texte intégralPontes, Duff Pereira Igor. « Approximation des systèmes dynamiques à grande dimension et à dimension infinie ». Thesis, Toulouse, ISAE, 2017. http://www.theses.fr/2017ESAE0001/document.
Texte intégralIn the engineering area (e.g. aerospace, automotive, biology, circuits), dynamical systems are the basic framework used for modeling, controlling and analyzing a large variety of systems and phenomena. Due to the increasing use of dedicated computer-based modeling design software, numerical simulation turns to be more and more used to simulate a complex system or phenomenon and shorten both development time and cost. However, the need of an enhanced model accuracy inevitably leads to an increasing number of variables and resources to manage at the price of a high numerical cost. This counterpart is the justification for model reduction. For linear time-invariant systems, several model reduction approaches have been effectively developed since the 60’s. Among these, interpolation-based methods stand out due to their flexibility and low computational cost, making them a predestined candidate in the reduction of truly large-scale systems. Recent advances demonstrate ways to find reduction parameters that locally minimize the H2 norm of the mismatch error. In general, a reduced-order approximation is considered to be a finite dimensional model. This representation is quite general and a wide range of linear dynamical systems can be converted in this form, at least in principle. However, in some cases, it may be more relevant to find reduced-order models having some more complex structures. As an example, some transport phenomena systems have their Hankel singular values which decay very slowly and are not easily approximated by a finite dimensional model. In addition, for some applications, it is valuable to have a structured reduced-order model which reproduces the physical behaviors. That is why, in this thesis, reduced-order models having delay structures have been more specifically considered. This work has focused, on the one hand, in developing new model reduction techniques for reduced order models having delay structures, and, on the other hand, in finding new applications of model approximation. The major contribution of this thesis covers approximation topics and includes several contributions to the area of model reduction. A special attention was given to the H2 optimal model approximation problem for delayed structured models. For this purpose, some new theoretical and methodological results were derived and successfully applied to both academic and industrial benchmarks. In addition, the last part of this manuscript is dedicated to the analysis of time-delayed systems stability using interpolatory methods. Some theoretical statements as well as an heuristic are developed enabling to estimate in a fast and accurate way the stability charts of those systems
Xu, Tiange. « Large deviations and invariant measures for stochastic partial differential equations in infinite dimensions ». Thesis, University of Manchester, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.496642.
Texte intégralLivres sur le sujet "Largeur infinie"
Danielle, Steel. Une grâce infinie. Paris : Pocket, 2010.
Trouver le texte intégralDanielle, Steel. Une grâce infinie. Paris : Éd. France loisirs, 2010.
Trouver le texte intégralDanielle, Steel. Une grâce infinie : Roman. Paris : Presses de la Cité, 2009.
Trouver le texte intégralYancey, Rick. The infinite sea. New York, New York : Speak, an imprint of Penguin Random House LLC, 2015.
Trouver le texte intégralAuchincloss, Louis. Her infinite variety. Boston : Houghton Mifflin, 2000.
Trouver le texte intégralAuchincloss, Louis. Her infinite variety. Boston : Houghton Mifflin, 2000.
Trouver le texte intégralAuchincloss, Louis. Her infinite variety. Thorndike, Me : G.K. Hall, 2001.
Trouver le texte intégralClose, F. E. The infinity puzzle. Oxford : Oxford University Press, 2011.
Trouver le texte intégralKanamori, Akihiro. The higher infinite : Large cardinals in set theory from their beginnings. 2e éd. Berlin : Springer, 2003.
Trouver le texte intégralKanamori, Akihiro. The higher infinite : Large cardinals in set theory from their beginnings. 2e éd. Berlin : Springer, 1997.
Trouver le texte intégralChapitres de livres sur le sujet "Largeur infinie"
Silbermann, Bernd. « Infinite Matrices ». Dans Introduction to Large Truncated Toeplitz Matrices, 1–30. New York, NY : Springer New York, 1999. http://dx.doi.org/10.1007/978-1-4612-1426-7_1.
Texte intégralRosenberg, Arnold L., et Denis Trystram. « The Vertigo of Infinity : Handling the Very Large and the Infinite ». Dans Understand Mathematics, Understand Computing, 215–32. Cham : Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58376-7_7.
Texte intégralPérez-Abreu, Victor, et Constantin Tudor. « Large Deviations for Double Itô Equations ». Dans Stochastics in Finite and Infinite Dimensions, 379–99. Boston, MA : Birkhäuser Boston, 2001. http://dx.doi.org/10.1007/978-1-4612-0167-0_20.
Texte intégralMacpherson, Dugald. « Large Subgroups of Infinite Symmetric Groups ». Dans Finite and Infinite Combinatorics in Sets and Logic, 249–78. Dordrecht : Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-2080-7_18.
Texte intégralAtanasova, Nataliya, et Iliya Brayanov. « Computation of Some Unsteady Flows over Porous Semi-infinite Flat Surface ». Dans Large-Scale Scientific Computing, 621–28. Berlin, Heidelberg : Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11666806_71.
Texte intégralStauffer, D. « Surface Simulations for Large Eden Clusters ». Dans Percolation Theory and Ergodic Theory of Infinite Particle Systems, 301–9. New York, NY : Springer New York, 1987. http://dx.doi.org/10.1007/978-1-4613-8734-3_17.
Texte intégralEgidi, Michela, Ivica Nakić, Albrecht Seelmann, Matthias Täufer, Martin Tautenhahn et Ivan Veselić. « Null-controllability and control cost estimates for the heat equation on unbounded and large bounded domains ». Dans Control Theory of Infinite-Dimensional Systems, 117–57. Cham : Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-35898-3_5.
Texte intégralLykina, Valeriya. « Existence Theorem for Infinite Horizon Optimal Control Problems with Mixed Control-State Isoperimetrical Constraint ». Dans Large-Scale Scientific Computing, 228–36. Cham : Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73441-5_24.
Texte intégralLette, Danya, et Azadeh Farzan. « Commutativity for Concurrent Program Termination Proofs ». Dans Computer Aided Verification, 109–31. Cham : Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-37706-8_6.
Texte intégralHinderer, Karl, Ulrich Rieder et Michael Stieglitz. « Markovian Decision Processes with Large and with Infinite Horizon ». Dans Universitext, 347–52. Cham : Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48814-1_20.
Texte intégralActes de conférences sur le sujet "Largeur infinie"
Soni, Bhanu Pratap, Vikas Gupta, Rajesh Kumar, Akash Saxena et S. L. Surana. « Application of ANN for stability assessment of large power system by post-fault rotor angle measurements ». Dans 2018 IEEMA Engineer Infinite Conference (eTechNxT). IEEE, 2018. http://dx.doi.org/10.1109/etechnxt.2018.8385363.
Texte intégralKhoussainov, Bakh, et Toru Takisaka. « Large scale geometries of infinite strings ». Dans 2017 32nd Annual ACM/IEEE Symposium on Logic in Computer Science (LICS). IEEE, 2017. http://dx.doi.org/10.1109/lics.2017.8005078.
Texte intégralOhannessian, Mesrob I., et Munther A. Dahleh. « Large alphabets : Finite, infinite, and scaling models ». Dans 2012 46th Annual Conference on Information Sciences and Systems (CISS). IEEE, 2012. http://dx.doi.org/10.1109/ciss.2012.6310941.
Texte intégralNandakumar, K., Pankaj Wahi et Anindya Chatterjee. « Infinite Dimensional Slow Modulations in a Delayed Model for Orthogonal Cutting Vibrations ». Dans ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2008. http://dx.doi.org/10.1115/esda2008-59339.
Texte intégralPlecnik, Mark M., et Ronald S. Fearing. « Finding Only Finite Roots to Large Kinematic Synthesis Systems ». Dans ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/detc2016-60428.
Texte intégralSan Andre´s, Luis, et Tae Ho Kim. « Gas Foil Bearings : Limits for High-Speed Operation ». Dans World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63398.
Texte intégralCipolla, Jeffrey L. « Transient Infinite Elements for Acoustics and Shock ». Dans ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0400.
Texte intégralVaswani, N. « Particle Filters for Infinite (or Large) Dimensional State Spaces-Part 2 ». Dans 2006 IEEE International Conference on Acoustics, Speech, and Signal Processing. IEEE, 2006. http://dx.doi.org/10.1109/icassp.2006.1660583.
Texte intégralMOYANO, LUIS G., ANA P. MAJTEY et CONSTANTINO TSALLIS. « WEAK CHAOS IN LARGE CONSERVATIVE SYSTEM – INFINITE-RANGE COUPLED STANDARD MAPS ». Dans Proceedings of the 31st Workshop of the International School of Solid State Physics. WORLD SCIENTIFIC, 2005. http://dx.doi.org/10.1142/9789812701558_0013.
Texte intégralMistry, Vinan, Gary Page et James McGuirk. « Large Eddy Simulation of Crossflow Vortices on an Infinite Swept Wing ». Dans 42nd AIAA Fluid Dynamics Conference and Exhibit. Reston, Virigina : American Institute of Aeronautics and Astronautics, 2012. http://dx.doi.org/10.2514/6.2012-2694.
Texte intégralRapports d'organisations sur le sujet "Largeur infinie"
Budhiraja, Amarjit, Paul Dupuis et Vasileios Maroulas. Large Deviations for Infinite Dimensional Stochastic Dynamical Systems. Fort Belvoir, VA : Defense Technical Information Center, mars 2007. http://dx.doi.org/10.21236/ada476159.
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