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Academic literature on the topic 'Classification automatique floue'
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Journal articles on the topic "Classification automatique floue"
Ragot, Nicolas, and Eric Anquetil. "Système de classification hybride interprétable par construction automatique de systèmes d'inférence floue." Techniques et sciences informatiques 22, no. 7-8 (August 1, 2003): 853–78. http://dx.doi.org/10.3166/tsi.22.853-878.
Full textDissertations / Theses on the topic "Classification automatique floue"
Girard, Régis. "Classification conceptuelle sur des données arborescentes et imprécises." La Réunion, 1997. http://elgebar.univ-reunion.fr/login?url=http://thesesenligne.univ.run/97_08_Girard.pdf.
Full textTurpin-Dhilly, Sandrine. "Adaptation des outils de la morphologie floue à l'analyse de données multidimensionnelles." Lille 1, 2000. http://www.theses.fr/2000LIL10035.
Full textAlbert, Benoit. "Méthodes d'optimisation avancées pour la classification automatique." Electronic Thesis or Diss., Université Clermont Auvergne (2021-...), 2024. http://www.theses.fr/2024UCFA0005.
Full textIn data partitioning, the goal is to group objects based on their similarity. K-means is one of the most commonly used models, where each cluster is represented by its centroid. Objects are assigned to the nearest cluster based on a distance metric. The choice of this distance is crucial to account for the similarity between the data points. Opting for the Mahalanobis distance instead of the Euclidean distance enables the model to detect classes of ellipsoidal shape rather than just spherical ones. The use of this distance metric presents numerous opportunities but also raises new challenges explored in my thesis.The central objective is the optimization of models, particularly FCM-GK (a fuzzy variant of k-means), which is a non-convex problem. The idea is to achieve a higher-quality partitioning without creating a new model by applying more robust optimization methods. In this regard, we propose two approaches: ADMM (Alternating Direction Method of Multipliers) and Nesterov's accelerated gradient method. Numerical experiments highlight the particular effectiveness of ADMM optimization, especially when the number of attributes in the dataset is significantly higher than the number of clusters.Incorporating the Mahalanobis distance into the model requires the introduction of an evaluation measure dedicated to partitions based on this distance. An extension of the Xie and Beni evaluation measure is proposed. This index serves as a tool to determine the optimal distance to use.Finally, the management of subsets in ECM (evidential variant) is addressed by determining the optimal imprecision zone. A new formulation of centroids and distances for subsets from clusters is introduced. Theoretical analyses and numerical experiments underscore the relevance of this new formulation
Benouhiba, Toufik. "Approche génétique et floue pour les systèmes d'agents adaptatifs : application à la reconnaissance des scenarii." Troyes, 2005. http://www.theses.fr/2005TROY0014.
Full textThe objective of this thesis is to use minimal a priori knowledge in order to generate uncertain rules which manipulate imprecise data. The proposed architecture has been tested on a multi-agent system to recognize scenarios. The realized works are distributed into three axis: - The first one concerns uncertain reasoning with imprecise data. The evidence theory and intuitionistic fuzzy logic have been used to model such reasoning. – The second axis corresponds to classifier systems and genetic programming. The proposed approach use the power of genetic programming and combine it to classifier systems. A new learning mechanism based on evidence theory is introduced in order to use this theory as a support of reasoning. – The third axis concerns cooperation in adaptive multi-agents systems. Classifier systems have been improved by using an explicit cooperation between a number of classifier agents. We also propose a new data fusion operator based on evidence theory and adapted to the manipulated data. The developed system has been used to recognize car’s maneuvers. In fact, we have proposed a multi-agent architecture to make recognition. Maneuvers are decomposed into several layers in order to recognize them with a given granularity level
Aldea, Emanuel. "Apprentissage de données structurées pour l'interprétation d'images." Paris, Télécom ParisTech, 2009. http://www.theses.fr/2009ENST0053.
Full textImage interpretation methods use primarily the visual features of low-level or high-level interest elements. However, spatial information concerning the relative positioning of these elements is equally beneficial, as it has been shown previously in segmentation and structure recognition. Fuzzy representations permit to assess at the same time the imprecision degree of a relation and the gradual transition between the satisfiability and the non-satisfiability of a relation. The objective of this work is to explore techniques of spatial information representation and their integration in the learning process, within the context of image classifiers that make use of graph kernels. We motivate our choice of labeled graphs for representing images, in the context of learning with SVM classifiers. Graph kernels have been studied intensively in computational chemistry and biology, but an adaptation for image related graphs is necessary, since image structures and properties of the information encoded in the labeling are fundamentally different. We illustrate the integration of spatial information within the graphical model by considering fuzzy adjacency measures between interest elements, and we define a family of graph representations determined by different thresholds applied to these spatial measures. Finally, we employ multiple kernel learning in order to build up classifiers that can take into account different graphical representations of the same image at once. Results show that spatial information complements the visual features of distinctive elements in images and that adapting the discriminative kernel functions for the fuzzy spatial representations is beneficial in terms of performance
Mokhtari, Aimed. "Diagnostic des systèmes hybrides : développement d'une méthode associant la détection par classification et la simulation dynamique." Phd thesis, INSA de Toulouse, 2007. http://tel.archives-ouvertes.fr/tel-00200034.
Full textGokana, Denis. "Contribution à la reconnaissance automatique de caractères manuscrits : application à la lecture optique de caractères sur supports mobiles." Paris 11, 1986. http://www.theses.fr/1986PA112063.
Full textRagot, Nicolas. "MÉLIDIS : Reconnaissance de formes par modélisation mixte intrinsèque/discriminante à base de systèmes d'inférence floue hiérarchisés." Phd thesis, Rennes 1, 2003. http://www.theses.fr/2003REN10078.
Full textCutrona, Jérôme. "Analyse de forme des objets biologiques : représentation, classification et suivi temporel." Reims, 2003. http://www.theses.fr/2003REIMS018.
Full textN biology, the relationship between shape, a major element in computer vision, and function has been emphasized since a long time. This thesis proposes a processing line leading to unsupervised shape classification, deformation tracking and supervised classification of whole population of objects. We first propose a contribution to unsupervised segmentation based on a fuzzy classification method and two semi-automatic methods founded on fuzzy connectedness and watersheds. Next, we perform a study on several shape descriptors including primitives and anti-primitives, contour, silhouete and multi-scale curvature. After shape matching, the descriptors are submitted to statistical analysis to highlight the modes of variations within the samples. The obtained statistical model is the basis of the proposed applications
Isaza, Narvaez Claudia Victoria. "Diagnostic par techniques d'apprentissage floues: concept d'une méthode de validation et d'optimisation des partitions." Phd thesis, INSA de Toulouse, 2007. http://tel.archives-ouvertes.fr/tel-00190884.
Full textBooks on the topic "Classification automatique floue"
Dumitrescu, D., Lakhmi C. Jain, and Beatrice Lazzerini. Fuzzy Sets and Their Application to Clustering and Training. Taylor & Francis Group, 2000.
Find full textKumar, Anil, A. Senthil Kumar, and Priyadarshi Upadhyay. Fuzzy Machine Learning Algorithms for Remote Sensing Image Classification. Taylor & Francis Group, 2020.
Find full textKumar, Anil, A. Senthil Kumar, and Priyadarshi Upadhyay. Fuzzy Machine Learning Algorithms for Remote Sensing Image Classification. Taylor & Francis Group, 2020.
Find full textFuzzy Machine Learning Algorithms for Remote Sensing Image Classification. Taylor & Francis Group, 2020.
Find full textKumar, Anil, A. Senthil Kumar, and Priyadarshi Upadhyay. Fuzzy Machine Learning Algorithms for Remote Sensing Image Classification. Taylor & Francis Group, 2020.
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