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Academic literature on the topic 'Rang et sélection (statistique) – Pérou'
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Journal articles on the topic "Rang et sélection (statistique) – Pérou"
Hoem, Jan M. "La standardisation indirecte améliorée et son application à la divortialité en Suède (1971-1989)." Population Vol. 46, no. 6 (June 1, 1991): 1551–68. http://dx.doi.org/10.3917/popu.p1991.46n6.1568.
Full textNiyonsenga, Gaudence, Darius Gishoma, Ruth Sego, Marie Goretti Uwayezu, Bellancille Nikuze, Margaret Fitch, and Pierre Céléstin Igiraneza. "Connaissances, utilisation et obstacles liés au dépistage du cancer du col utérin dans des hôpitaux de district de Kigali, au Rwanda." Canadian Oncology Nursing Journal 31, no. 3 (July 22, 2021): 275–84. http://dx.doi.org/10.5737/23688076313275284.
Full textDissertations / Theses on the topic "Rang et sélection (statistique) – Pérou"
Paolillo, José. "L'institutionnalisation du discours sur l'Université de rang mondial dans le système d'enseignement supérieur Péruvien : le cas de l’Université Catholique Santo Toribio de Mogrovejo au Chiclayo." Electronic Thesis or Diss., Université de Montpellier (2022-....), 2024. http://www.theses.fr/2024UMOND009.
Full textWe explain the construction of the World-class university (WCU) concept and its particular relationship with international university rankings, the main actors that make up the global scenario are identified by describing each of them. Particular emphasis is placed on the so-called “Big Three” because of the crucial importance of their diffusion in the process of institutionalization of the concept. Likewise, we examine the implications of the concept in the national sphere (Peru), and later in the micro-organizational sphere (At the Catholic University “Santo Toribio de Mogrovejo” in the City of Chiclayo - Peru). We present a review of the literature related to the concept, starting from studies carried out at the global level, then those at the Latin American level, and ending with those established at the Peruvian national level. Next, we present the conceptual framework of neo-institutional theory (NIT) which will help us clarify institutionalization through the discursive variant. We highlight the arguments that led us to pronounce ourselves on this theory based on the founding articles and their perspectives. Subsequently, we present a brief overview of the discursive trajectory, as well as the explanation of a model of discursive institutionalization through the relationships between actions, texts, discourse and institutions. Finally, we present our research questions, which range from the international level to the scope of the Catholic University “Santo Toribio de Mogrovejo” (USAT), through discourse interpretation at national level. In the second part, we base our selection decision on qualitative research, then rely on a single-case model. We start from our epistemological position, thus placing our research within the interpretivist paradigm. Then, we explain the reasons for choosing the qualitative methodology and then we integrate Langley's (1999) longitudinal approach into our work. We show in detail the data collection, as well as the interpretation and analysis considerations: immersion, interviews, conduct of interviews, selection of interviewed actors and data collection (primary and secondary). Finally, our results suggest two important aspects, the identification of particular structures of institutionalization of the WCU concept in each international, national and organizational level of analysis, and the identification of levers outside our analysis model coming from the field, namely Quality, Language and Economic Resources
Meunier, Hervé. "Algorithmes évolutionnaires parallèles pour l'optimisation multi-objectif de réseaux de télécommunications mobiles." Lille 1, 2002. https://pepite-depot.univ-lille.fr/RESTREINT/Th_Num/2002/50376-2002-93.pdf.
Full textChambaz, Antoine. "Segmentation spatiale et sélection de modèle : théorie et applications statistiques." Paris 11, 2003. http://www.theses.fr/2003PA112012.
Full textWe tacke in this thesis the elaboration of an original method that provides refinement of the localization of the mobIle telecommunication traffic in urban area for France Télécom R&D. This work involves both practical and theoretical developments. Our point of view is of statistical nature. The major themes are spatial segmentation and model selection. We first introduce the various datasets from which our approach stems. They cast some light on the original problem. We motivate the choice of an heteroscedastic regression model. We then present a practical nonparametric regression method based on CART regression trees and its Bagging and Boosting extensions by resampling. The latter classical methods are designed for ho- moscedastic models. We propose an adaptation to heteroscedastic ODes, including an original analysis of variable importance. We apply the method to various traffic datasets. The final results are commented. The above practical work motivates the theoretical study of the consistency of a family of estimators of the order of a segmented model and its associated segmentation. We also cope, in a general framework of model select ion in a nested family of models, with the estimation of the order of a model. We are particularly concerned with consistency properties and rates of und er- or overestimation. We tackle the problem at stake with a linear functional approach, i. E. An approach where the events of interest are described as events concerning the empirical measute. This allows to derive general results that gather and enhance earlier ODes. A large range of techniques are involved : classical arguments of M -estimation, concentration, max- imal inequalities for dependent variables, Stein's lemma, penalization, Large and Moderate Deviations Principles for the empirical measure, à la Huber trick
Bi, Duyan. "Segmentation d'images basée sur les statistiques de rangs des niveaux de gris." Tours, 1997. http://www.theses.fr/1997TOUR4005.
Full textChallita, Nicole. "Contributions à la sélection des attributs de signaux non stationnaires pour la classification." Thesis, Troyes, 2018. http://www.theses.fr/2018TROY0012.
Full textTo monitor the functioning of a system, the number of measurements and attributes can now be very large. But it is desirable to reduce the size of the problem by keeping only the discriminating features to learn the monitoring rule and to reduce the processing demand. The problem is therefore to select a subset of attributes to obtain the best possible classification performance. This thesis dissertation presents different existing methods for feature selection and proposes two new ones. The first one, named "EN-ReliefF", is a combination of a sequential ReliefF method and a weighted regression approach: Elastic Net. The second one is inspired by neural networks. It is formulated as an optimization problem allowing defining at the same time a non-linear regression that adapts to the learning data and a parsimonious weighting of the features. The weights are then used to select the relevant features. Both methods are tested on synthesis data and data from rotating machines. Experimental results show the effectiveness of both methods. Remarkable characteristics are the stability of selection and ability to manage linearly correlated attributes for "EN-ReliefF" and the sensitivity and ability to manage non-linear dependencies for the second method
Savalle, Pierre-André. "Interactions entre rang et parcimonie en estimation pénalisée, et détection d'objets structurés." Thesis, Châtenay-Malabry, Ecole centrale de Paris, 2014. http://www.theses.fr/2014ECAP0051/document.
Full textThis thesis is organized in two independent parts. The first part focused on convex matrix estimation problems, where both rank and sparsity are taken into account simultaneously. In the context of graphs with community structures, a common assumption is that the underlying adjacency matrices are block-diagonal in an appropriate basis. However, these types of graphs are usually far from complete, and their adjacency representations are thus also inherently sparse. This suggests that combining the sparse hypothesis and the low rank hypothesis may allow to more accurately model such objects. To this end, we propose and analyze a convex penalty to promote both low rank and high sparsity at the same time. Although the low rank hypothesis allows to reduce over-fitting by decreasing the modeling capacity of a matrix model, the opposite may be desirable when enough data is available. We study such an example in the context of localized multiple kernel learning, which extends multiple kernel learning by allowing each of the kernels to select different support vectors. In this framework, multiple kernel learning corresponds to a rank one estimator, while higher-rank estimators have been observed to increase generalization performance. We propose a novel family of large-margin methods for this problem that, unlike previous methods, are both convex and theoretically grounded. The second part of the thesis is about detection of objects or signals which exhibit combinatorial structures, and we present two such problems. First, we consider detection in the statistical hypothesis testing sense, in models where anomalous signals correspond to correlated values at different sensors. In most existing work, detection procedures are provided with a full sample of all the sensors. However, the experimenter may have the capacity to make targeted measurements in an on-line and adaptive manner, and we investigate such adaptive sensing procedures. Finally, we consider the task of identifying and localizing objects in images. This is an important problem in computer vision, where hand-crafted features are usually used. Following recent successes in learning ad-hoc representations for similar problems, we integrate the method of deformable part models with high-dimensional features from convolutional neural networks, and shows that this significantly decreases the error rates of existing part-based models
Estampes, Ludovic d'. "Traitement statistique des processus alpha-stables : mesures de dépendance et identification des AR stables : tests séquentiels tronqués." Toulouse, INPT, 2003. http://www.theses.fr/2003INPT031H.
Full textBoisbunon, Aurélie. "Sélection de modèle : une approche décisionnelle." Phd thesis, Université de Rouen, 2013. http://tel.archives-ouvertes.fr/tel-00793898.
Full textKalakech, Mariam. "Sélection semi-supervisée d'attributs : application à la classification de textures couleur." Thesis, Lille 1, 2011. http://www.theses.fr/2011LIL10018/document.
Full textWithin the framework of this thesis, we are interested in feature selection methods based on graph theory in different unsupervised, semi-supervised and supervised learning contexts. We are particularly interested in the feature ranking scores based on must-link et cannot-link constraints. Indeed, these constraints are easy to be obtained on real applications. They just require to formalize for two data samples if they are similar and then must be grouped together or not, without detailed information on the classes to be found. Constraint scores have shown good performances for semi-supervised feature selection. However, these scores strongly depend on the given must-link and cannot-link subsets built by the user. We propose then a new semi-supervised constraint scores that uses both pairwise constraints and local properties of the unconstrained data. Experiments on artificial and real databases show that this new score is less sensitive to the given constraints than the previous scores while providing similar performances. Semi supervised feature selection was also successfully applied to the color texture classification. Indeed, among many texture features which can be extracted from the color images, it is necessary to select the most relevant ones to improve the quality of classification
Olteanu, Madalina. "Modèles à changements de régime : applications aux données financières." Phd thesis, Université Panthéon-Sorbonne - Paris I, 2006. http://tel.archives-ouvertes.fr/tel-00133132.
Full textOn propose d'étudier ces questions à travers deux approches. Dans la première, il s'agit de montrer la consistance faible d'un estimateur de maximum de vraisemblance pénalisée sous des conditions de stationnarité et dépendance faible. Les hypothèses introduites sur l'entropie à crochets de la classe des fonctions scores généralisés sont ensuite vérifiées dans un cadre linéaire et gaussien. La deuxième approche, plutôt empirique, est issue des méthodes de classification non-supervisée et combine les cartes de Kohonen avec une classification hiérarchique pour laquelle une nouvelle dispersion basée sur la somme des carrés résiduelle est introduite.
Books on the topic "Rang et sélection (statistique) – Pérou"
author, Arboretti Rosa, and Bonnini Stefano author, eds. Ranking of multivariate populations: A permutation approach with applications. Boca Raton: CRC Press/Taylor & Francis Group, 2016.
Find full textHarcourt Brace & Company. Educational Measurement., ed. Stanford achievement test series. San Antonio [Tex.]: Harcourt Brace Educational Measurement, 2004.
Find full textCorain, Livio, Rosa Arboretti, and Stefano Bonnini. Ranking of Multivariate Populations: A Permutation Approach with Applications. Taylor & Francis Group, 2017.
Find full textCorain, Livio, Rosa Arboretti, and Stefano Bonnini. Ranking of Multivariate Populations: A Permutation Approach with Applications. Taylor & Francis Group, 2017.
Find full textCorain, Livio, Rosa Arboretti, and Stefano Bonnini. Ranking of Multivariate Populations: A Permutation Approach with Applications. CRC Press LLC, 2022.
Find full textCorain, Livio, Rosa Arboretti, and Stefano Bonnini. Ranking of Multivariate Populations: A Permutation Approach with Applications. Taylor & Francis Group, 2017.
Find full textCorain, Livio, Rosa Arboretti, and Stefano Bonnini. Ranking of Multivariate Populations: A Permutation Approach with Applications. Taylor & Francis Group, 2017.
Find full textCorain, Livio, Rosa Arboretti, and Stefano Bonnini. Ranking of Multivariate Populations: A Permutation Approach with Applications. Taylor & Francis Group, 2017.
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