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Artykuły w czasopismach na temat "Ruptures multidimensionnelles"
Theys, Jacques. "Dossier : Le groupe des Dix, des précurseurs de l'interdisciplinarité – Vingt-cinq ans de médiation entre sciences, politique et société : le Groupe d’exploration et de recherches multidisciplinaires sur l’environnement et la société (Germes) (1975-2002)". Natures Sciences Sociétés 27, nr 2 (kwiecień 2019): 191–204. http://dx.doi.org/10.1051/nss/2019038.
Pełny tekst źródłaFreires, Leogildo Alves, Sheyla Christine Santos Fernandes, Angélica Maria Ferreira de Melo Castro, Leonita Chagas de Oliveira, Luan Filipy Freire Torres i Eduardo Feitosa Santos. "Estresse em universitários: conhecendo o efeito das atividades remotas no cotidiano pandêmico". Revista Brasileira de Educação 28 (2023). http://dx.doi.org/10.1590/s1413-24782023280006.
Pełny tekst źródłaRozprawy doktorskie na temat "Ruptures multidimensionnelles"
Lung-Yut-Fong, Alexandre. "Détection de ruptures pour les signaux multidimensionnels. Application à la détection d'anomalies dans les réseaux". Phd thesis, Télécom ParisTech, 2011. http://pastel.archives-ouvertes.fr/pastel-00675543.
Pełny tekst źródłaLung-Yut-Fong, Alexandre. "Détection robuste de ruptures pour les signaux multidimensionnels : application à la détection d'anomalies dans les réseaux". Paris, Télécom ParisTech, 2011. https://pastel.hal.science/pastel-00675543.
Pełny tekst źródłaThe aim of this work is to propose non-parametric change-point detection methods. The main application of such methods is the use of data recorded by a collection of network sensors to detect malevolent attacks. The first contribution of the thesis work is a decentralized anomaly detector. Each network sensor applies a rank-based change-point detection test, and the final decision is taken by a fusion center which aggregates the information transmitted by the sensors. This method is able to process a huge amount of data, thanks to a clever filtering step. In the second contribution, we take into account the dependencies between the different sensors to improve the detection performance. Based on homogeneity tests that we have proposed to assess the similarity between different sets of data, the robust detection methods that we have designed are able to find one or more change-point in a multidimensional signal. We thus obtained robust and versatile methods, with strong theoretical properties, to solve a large collection of segmentation problems: network anomaly detection, econometrics, DNA analysis for cancer prognosis… The methods that we proposed are particularly adequate when the characteristics of the analyzed data are unknown
Naji, Aljabzi Mustafa. "Sοcialisatiοn et rupture génératiοnnelle dans les mοuvements de l'islam pοlitique : le parti Al-Ιslah au Υémen cοmme étude de cas". Electronic Thesis or Diss., Normandie, 2025. http://www.theses.fr/2025NORMR011.
Pełny tekst źródłaThis thesis explores socialization within the Al-Islah party, founded in 1990 and heir to the Yemeni Islamic movement, perceived as the Yemeni branch of the Muslim Brotherhood, whose internal socialization mechanisms shaping the identities and behaviors of its members remain understudied. Given the conflictual Yemeni context, exile is an essential variable to examine, particularly since the 2014 conflict, which led many Al-Islah members to seek refuge in Turkey, a country chosen for its ideological proximity to the Turkish regime. Turkey thus constitutes a field of study where a Yemeni diaspora is structured.Particular attention is paid to the Islahi youth, especially emerging intellectual and media actors. The study assumes the existence of two types of socialization marking a generational effect. It questions the dynamics of recruitment, the modalities of indoctrination, the resources mobilized to educate and condition members, as well as the frames of reference, values, and behaviors instilled by the party. The thesis also explores the counter-socialization approaches adopted by some members. The analysis sheds light on internal tensions, glass ceiling factors, and the disillusionment of young people in an unstable political context.The methodology relies on a qualitative approach combining around thirty interviews, including 18 life stories (including six women), as well as ethnographic observation conducted in a western district of Istanbul where a Yemeni community is concentrated.The results reveal a plurality of ideological references within Al-Islah, reflecting the diversity of its components since its founding. This diversity leads to a structural duality where the influence of the Muslim Brotherhood remains prevalent. Although similarities exist with the socialization practiced by the Muslim Brotherhood in Egypt, notable differences arise due to distinct political contexts. The study highlights the complexity and sophistication of the Islahi socialization process, composed of multiple stages and adapting to geopolitical evolutions while maintaining a stable religious dimension. This socialization aims to produce a "homo islamicus," formed through a religious educational framework structured by a political party.Finally, this socialization is characterized by its immersive, intrusive, and possessive nature, making any definitive break difficult. However, it fits into an interactive logic where the member negotiates their place, especially when confronted with other paradigms. Individual experience, particularly migratory, and the 2011 Revolution, has favored a re-examination and identity transformation, but without completely erasing the initial ideological heritage. Thus, a "latent Brotherhood-ism" manifests in some members
Liu, Wan Yu. "Détection de rupture par mesure de non stationnarité locale : application à la segmentation de signaux multidimensionnels". Lyon, INSA, 1994. http://www.theses.fr/1994ISAL0043.
Pełny tekst źródłaIn this work. An original theory for the rupture detection applied to multidimensional signais is developed. This approach, different from the classical methods, consists of firstly the characterisation of the local statistical properties of signal by means of an instantaneous parameter. A general estimator of this instantaneous parameter is developed and its convergence is shown. By introducing the concept of the metric space, both the stationary properties of the signal and the transient properties of the signals from a stationary segment to another one are demonstrated. The measure of the signal-non-stationarity in an observation window is defined by means of the distance associated to the norm Lp and the signal rupture is generally characterised by this measure. Such an operator is specially insensitive to noise and presents some better performances than that of Canny-Deriche. The theoretical analysis includes both the rupture detection performance for three different model inputs and the operator pertormance with presence of the Gaussian white noise in terms of signal-to-noise ratio. An important number of simulations realised in various situations confirm the theoretical analysis. Some examples of higher order statistics rupture detection. Until 4th order. Are given after generalization of the proposed operator to any given order k. The application of this contour enhancement operator as stereoechographic image pre-processing shows a clear visual improvement leading to a possible relief perception. The results of the segmentation on synthetic and actual images ( US. RIM. X-ray) are presented