Literatura científica selecionada sobre o tema "Profondeurs multivariées"
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Artigos de revistas sobre o assunto "Profondeurs multivariées"
Monkotan, Kuassi Ramsès Eden, Durand Vissoh, Orou Gédéon Kouato, Mahamadou Dahouda e Marcel Senou. "Diversité morphométrique intra-population du mouton Djallonké du Bénin". Revue d’élevage et de médecine vétérinaire des pays tropicaux 76 (15 de novembro de 2023): 1–10. http://dx.doi.org/10.19182/remvt.37269.
Texto completo da fonteMulet-Perreault, Hannah, Allyson Bernier, Rose-Anne Paquin, Philippe Landreville, Pierre-Hugues Carmichael e Elisabeth Beaunoyer. "Symptômes anxieux". Psycause : revue scientifique étudiante de l'École de psychologie de l'Université Laval 9, n.º 2 (6 de outubro de 2019): 23–24. http://dx.doi.org/10.51656/psycause.v9i2.20151.
Texto completo da fonteBabelhadj, Baaissa, Claude Guintard, Atika Benaissa e Chantal Thorin. "Caractérisation biométrique du Chameau de la steppe (dromedarius Linné 1758) en Algérie". Revue d’élevage et de médecine vétérinaire des pays tropicaux 74, n.º 1 (31 de março de 2021): 37–42. http://dx.doi.org/10.19182/remvt.36326.
Texto completo da fonteTeses / dissertações sobre o assunto "Profondeurs multivariées"
Armaut, Elisabeth. "Estimation d'ensembles de niveau d'une fonction de profondeur pour des données fonctionnelles. Applications au clustering et à la théorie du risque". Electronic Thesis or Diss., Université Côte d'Azur, 2024. http://www.theses.fr/2024COAZ5021.
Texto completo da fonteStatistical depth functions play a fundamental role in analyzing and characterizing complex data structures. Depth functions provide a measure of centrality or outlyingness for individual observations or entire datasets, aiding in the understanding of their relative positions and underlying distributions. The concepts related to depth, as found in the literature, originate from the notion of Tukey's depth, also known as the median depth. This concept was introduced by the statistician John W. Tukey in his article titled "Mathematics and the Picturing of Data," published in 1975 [170]. The fundamental idea underlying Tukey's depth is to generalize the univariate median of a one-dimensional dataset in higher dimension. First, our interest focuses on multivariate depths followed by functional depths, both of which we build an overall review within Chapter 1. In the second part of this thesis, i.e. in Chapter 2, we undertake a rigorous study of multivariate depth-level sets and establish several analytical and statistical properties. First, we show that, when the underlying multivariate depth is smooth enough, then the symmetric difference between the estimated depth-level set and its theoretical counterpart converges to zero in terms of the d-dimensional volume and of the probability under the unknown distribution. Apart from these contributions, the novelty of Chapter 2 is the introduction and study of a depth-based risk measure called the Covariate-Conditional- Tail-Expectation (CCTE), within a risk theory setup. Roughly, the CCTE aims at computing an average cost knowing that at least one of the risk factors at hand is 'high' in some direction. The latter risk area is modelled by a level-set of low depth value. In contrast to risk measures based on distribution tails, our definition of CCTE is direction-free, owing to the involvement of depth level sets. We establish that, as the sample size goes to infinity the empirical depth-based CCTE is consistent for its theoretical version. We demonstrate consistency and provide rates of convergence for the depth- CCTE, for fixed levels of risk as well as when the risk level goes to zero as the sample size goes to infinity. In this last case of study, we also analyze the behavior of the original CCTE definition based on a distribution function, a case that was not studied in [56]. On top of several simulations performed on the CCTE, we illustrate its usefulness on environmental data.The final part of this thesis, Chapter 3, wraps up our work in which we contribute to defining a new type of depth for functional data based on functional principal component analysis. This includes using a generic multivariate depth. In this view, we use the well known Karhunen-Loève decomposition as a tool to project a centered square-integrable random process along some finite linear combination of orthogonal functions called the principal components. To the best of our knowledge, this is a novel approach in the functional depth literature. In this extent, we involve a multivariate depth function for the vector of the projected principal components. Naturally, we provide an estimator of our functional depth for which we demonstrate uniform consistency with a rate of convergence. We complement our study with several simulations and real data applications to functional classification, where our new depth equals or outperforms most of conventional competitors
Lahlou, Mimi Said. "Profondeur de Tukey et son application en contrôle de qualité multivarié /". Thèse, Trois-Rivières : Université du Québec à Trois-Rivières, 2000. http://www.uqtr.ca/biblio/notice/resume/03-2224127R.html.
Texto completo da fonteLahlou, Mimi Said. "Profondeur de Tukey et son application en contrôle de qualité multivarié". Thèse, Université du Québec à Trois-Rivières, 2000. http://depot-e.uqtr.ca/3175/1/000677395.pdf.
Texto completo da fonteVernerey, Franck. "Analyse multivariable de données ToF-SIMS, spectres de surface - profiles en profondeurs - imagerie de surface : développement du logiciel MULTI-ION SIMS". Lyon 1, 2003. http://www.theses.fr/2003LYO10247.
Texto completo da fonteBelharet, Djaffar. "Etude et validation de boucles d’asservissement permettant le contrôle avancé des procédés en microélectronique : application à l’étape d’isolation par tranchées peu profondes en technologie CMOS". Saint-Etienne, EMSE, 2009. http://www.theses.fr/2009EMSE515M.
Texto completo da fonteThis work belongs to the development of Advanced Process Control (APC) applications in the microelectronics industry. The APC component studied here is the implementation of close regulation loops which can adjust the process parameters in real time. This technique is applied on the isolation module of the CMOS circuits. The shallow trench isolation (STI) is the chosen solution for the technologies below 0. 25 µm. The impact of the STI morphology on the mechanical stress is confirmed and the influence of the STI on the electrical parameters through different correlation analysis is demonstrated. An electrical indicator for the monitoring of the regulation close loop is defined. This parameter is the punch-through voltage of the parasitic transistors. The step height dispersion affects directly the punch-through voltage of the parasitic transistors. In order to reduce this dispersion, we proposed to achieve three regulation closed loops. The processes to be regulated are: the high density plasma CVD deposition, the chemical mechanical polishing and the wet etching. The process models represent the heart of the regulation close loop and have been established from Design Of Experiments (DOE)
Cantu, Alma. "Proposition de modes de visualisation et d'interaction innovants pour les grandes masses de données et/ou les données structurées complexes en prenant en compte les limitations perceptives des utilisateurs". Thesis, Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2018. http://www.theses.fr/2018IMTA0068/document.
Texto completo da fonteAs a result of the improvement of data capture and storage, recent years have seen the amount of data to be processed increase dramatically. Many studies, ranging from automatic processing to information visualization, have been performed, but some areas are still too specific to take advantage of. This is the case of ELectromagnetic INTelligence(ELINT). This domain does not only deal with a huge amount of data but also has to handle complex data and usage as well as populations of users with less and less experience. In this thesis we focus on the use of existing and new technologies applied to visualization to propose solutions to the combination of issues such as huge amount and complex data. We begin by presenting an analysis of the ELINT field which made it possible to extract the issues that it must faces. Then, we focus on the visual solutions handling the combinations of such issues but the existing work do not contain directly such solutions. Therefore, we focus on the description of visual issues and propose a characterization of these issues. This characterization allows us to describe the existing representations and to build a recommendation tool based on how the existing work solves the issues. Finally, we focus on identifying new metaphors to complete the existing work and propose an immersive representation to solve the issues of ELINT. These contributions make it possible to analyze and use the existing and deepen the use of immersive representations for the visualization of information
Belharet, Djaffar. "Etude et validation de boucles d'asservissement permettant le contrôle avancé des procédés en microélectronique : Application à l'étape d'isolation par tranchées peu profondes en technologie CMOS". Phd thesis, Ecole Nationale Supérieure des Mines de Saint-Etienne, 2009. http://tel.archives-ouvertes.fr/tel-00467446.
Texto completo da fonteAyina, Ludos-Hervé. "Etude des modes de variabilité de l'océan Atlantique tropical et de leur sensibilité à l'impact des décharges fluviatiles et des précipitations". Paris 6, 2002. http://www.theses.fr/2002PA066019.
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