Littérature scientifique sur le sujet « Variables clustering »
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Articles de revues sur le sujet "Variables clustering"
Perricone, Chiara. « Clustering macroeconomic variables ». Structural Change and Economic Dynamics 44 (mars 2018) : 23–33. http://dx.doi.org/10.1016/j.strueco.2018.02.001.
Texte intégralHathaway, Richard J. « Clustering Random Variables ». IETE Journal of Research 44, no 4-5 (juillet 1998) : 199–205. http://dx.doi.org/10.1080/03772063.1998.11416046.
Texte intégralChen, Mingkun, et Evelyne Vigneau. « Supervised clustering of variables ». Advances in Data Analysis and Classification 10, no 1 (15 novembre 2014) : 85–101. http://dx.doi.org/10.1007/s11634-014-0191-5.
Texte intégralZhang, Hongmei, Yubo Zou, Will Terry, Wilfried Karmaus et Hasan Arshad. « Joint Clustering With Correlated Variables ». American Statistician 73, no 3 (9 juillet 2018) : 296–306. http://dx.doi.org/10.1080/00031305.2018.1424033.
Texte intégralRubiano Moreno, Jesica, Carlos Alonso Malaver, Samuel Nucamendi Guillén et Carlos López Hernández. « A clustering algorithm for ipsative variables ». DYNA 86, no 211 (1 octobre 2019) : 94–101. http://dx.doi.org/10.15446/dyna.v86n211.77835.
Texte intégralForina, M., C. Armanino et V. Raggio. « Clustering with dendrograms on interpretation variables ». Analytica Chimica Acta 454, no 1 (mars 2002) : 13–19. http://dx.doi.org/10.1016/s0003-2670(01)01517-3.
Texte intégralSaracco, J., et M. Chavent. « Clustering of Variables for Mixed Data ». EAS Publications Series 77 (2016) : 121–69. http://dx.doi.org/10.1051/eas/1677007.
Texte intégralHuh, Myung-Hoe, et Yong B. Lim. « Weighting variables in K-means clustering ». Journal of Applied Statistics 36, no 1 (31 octobre 2008) : 67–78. http://dx.doi.org/10.1080/02664760802382533.
Texte intégralVigneau, E., et E. M. Qannari. « Clustering of Variables Around Latent Components ». Communications in Statistics - Simulation and Computation 32, no 4 (11 janvier 2003) : 1131–50. http://dx.doi.org/10.1081/sac-120023882.
Texte intégralGhizlane, Ez-Zarrad, Sabbar Wafae et Bekkhoucha Abdelkrim. « Features Clustering Around Latent Variables for High Dimensional Data ». E3S Web of Conferences 297 (2021) : 01070. http://dx.doi.org/10.1051/e3sconf/202129701070.
Texte intégralThèses sur le sujet "Variables clustering"
Chang, Soong Uk. « Clustering with mixed variables / ». [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe19086.pdf.
Texte intégralEndrizzi, Isabella <1975>. « Clustering of variables around latent components : an application in consumer science ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2008. http://amsdottorato.unibo.it/667/1/Tesi_Endrizzi_Isabella.pdf.
Texte intégralEndrizzi, Isabella <1975>. « Clustering of variables around latent components : an application in consumer science ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2008. http://amsdottorato.unibo.it/667/.
Texte intégralSaraiya, Devang. « The Impact of Environmental Variables in Efficiency Analysis : A fuzzy clustering-DEA Approach ». Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/34637.
Texte intégralMaster of Science
Dean, Nema. « Variable selection and other extensions of the mixture model clustering framework / ». Thesis, Connect to this title online ; UW restricted, 2006. http://hdl.handle.net/1773/8943.
Texte intégralDoan, Nath-Quang. « Modèles hiérarchiques et topologiques pour le clustering et la visualisation des données ». Paris 13, 2013. http://scbd-sto.univ-paris13.fr/secure/edgalilee_th_2013_doan.pdf.
Texte intégralThis thesis focuses on clustering approaches inspired from topological models and an autonomous hierarchical clustering method. The clustering problem becomes more complicated and difficult due to the growth in quality and quantify of structured data such as graphs, trees or sequences. In this thesis, we are particularly interested in self-organizing maps which have been generally used for learning topological preservation, clustering, vector quantization and graph visualization. Our studyconcerns also a hierarchical clustering method AntTree which models the ability of real ants to build structure by connect themselves. By combining the topological map with the self-assembly rules inspired from AntTree, the goal is to represent data in a hierarchical and topological structure providing more insight data information. The advantage is to visualize the clustering results as multiple hierarchical trees and a topological network. In this report, we present three new models that are able to address clustering, visualization and feature selection problems. In the first model, our study shows the interest in the use of hierarchical and topological structure through several applications on numerical datasets, as well as structured datasets e. G. Graphs and biological dataset. The second model consists of a flexible and growing structure which does not impose the strict network-topology preservation rules. Using statistical characteristics provided by hierarchical trees, it accelerates significantly the learning process. The third model addresses particularly the issue of unsupervised feature selection. The idea is to use hierarchical structure provided by AntTree to discover automatically local data structure and local neighbors. By using the tree topology, we propose a new score for feature selection by constraining the Laplacian score. Finally, this thesis offers several perspectives for future work
Ndaoud, Mohamed. « Contributions to variable selection, clustering and statistical estimation inhigh dimension ». Electronic Thesis or Diss., Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLG005.
Texte intégralThis PhD thesis deals with the following statistical problems: Variable selection in high-Dimensional Linear Regression, Clustering in the Gaussian Mixture Model, Some effects of adaptivity under sparsity and Simulation of Gaussian processes.Under the sparsity assumption, variable selection corresponds to recovering the "small" set of significant variables. We study non-asymptotic properties of this problem in the high-dimensional linear regression. Moreover, we recover optimal necessary and sufficient conditions for variable selection in this model. We also study some effects of adaptation under sparsity. Namely, in the sparse vector model, we investigate, the changes in the estimation rates of some of the model parameters when the noise level or its nominal law are unknown.Clustering is a non-supervised machine learning task aiming to group observations that are close to each other in some sense. We study the problem of community detection in the Gaussian Mixture Model with two components, and characterize precisely the sharp separation between clusters in order to recover exactly the clusters. We also provide a fast polynomial time procedure achieving optimal recovery.Gaussian processes are extremely useful in practice, when it comes to model price fluctuations for instance. Nevertheless, their simulation is not easy in general. We propose and study a new rate-optimal series expansion to simulate a large class of Gaussian processes
Naik, Vaibhav C. « Fuzzy C-means clustering approach to design a warehouse layout ». [Tampa, Fla.] : University of South Florida, 2004. http://purl.fcla.edu/fcla/etd/SFE0000437.
Texte intégralNdaoud, Mohamed. « Contributions to variable selection, clustering and statistical estimation inhigh dimension ». Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLG005/document.
Texte intégralThis PhD thesis deals with the following statistical problems: Variable selection in high-Dimensional Linear Regression, Clustering in the Gaussian Mixture Model, Some effects of adaptivity under sparsity and Simulation of Gaussian processes.Under the sparsity assumption, variable selection corresponds to recovering the "small" set of significant variables. We study non-asymptotic properties of this problem in the high-dimensional linear regression. Moreover, we recover optimal necessary and sufficient conditions for variable selection in this model. We also study some effects of adaptation under sparsity. Namely, in the sparse vector model, we investigate, the changes in the estimation rates of some of the model parameters when the noise level or its nominal law are unknown.Clustering is a non-supervised machine learning task aiming to group observations that are close to each other in some sense. We study the problem of community detection in the Gaussian Mixture Model with two components, and characterize precisely the sharp separation between clusters in order to recover exactly the clusters. We also provide a fast polynomial time procedure achieving optimal recovery.Gaussian processes are extremely useful in practice, when it comes to model price fluctuations for instance. Nevertheless, their simulation is not easy in general. We propose and study a new rate-optimal series expansion to simulate a large class of Gaussian processes
Giacofci, Joyce. « Classification non supervisée et sélection de variables dans les modèles mixtes fonctionnels. Applications à la biologie moléculaire ». Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENM025/document.
Texte intégralMore and more scientific studies yield to the collection of a large amount of data that consist of sets of curves recorded on individuals. These data can be seen as an extension of longitudinal data in high dimension and are often modeled as functional data in a mixed-effects framework. In a first part we focus on performing unsupervised clustering of these curves in the presence of inter-individual variability. To this end, we develop a new procedure based on a wavelet representation of the model, for both fixed and random effects. Our approach follows two steps : a dimension reduction step, based on wavelet thresholding techniques, is first performed. Then a clustering step is applied on the selected coefficients. An EM-algorithm is used for maximum likelihood estimation of parameters. The properties of the overall procedure are validated by an extensive simulation study. We also illustrate our method on high throughput molecular data (omics data) like microarray CGH or mass spectrometry data. Our procedure is available through the R package "curvclust", available on the CRAN website. In a second part, we concentrate on estimation and dimension reduction issues in the mixed-effects functional framework. Two distinct approaches are developed according to these issues. The first approach deals with parameters estimation in a non parametrical setting. We demonstrate that the functional fixed effects estimator based on wavelet thresholding techniques achieves the expected rate of convergence toward the true function. The second approach is dedicated to the selection of both fixed and random effects. We propose a method based on a penalized likelihood criterion with SCAD penalties for the estimation and the selection of both fixed effects and random effects variances. In the context of variable selection we prove that the penalized estimators enjoy the oracle property when the signal size diverges with the sample size. A simulation study is carried out to assess the behaviour of the two proposed approaches
Livres sur le sujet "Variables clustering"
Kessler, Ronald C. Trauma and PTSD in the United States. Sous la direction de Charles B. Nemeroff et Charles R. Marmar. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190259440.003.0007.
Texte intégralVariable Clustering Methods and Applications in Portfolio Selection. [New York, N.Y.?] : [publisher not identified], 2021.
Trouver le texte intégralBawa, Sandeep, Paul Wordsworth et Inoshi Atukorala. Spondyloarthropathies. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199550647.003.010004.
Texte intégralJames, Gareth. Sparseness and functional data analysis. Sous la direction de Frédéric Ferraty et Yves Romain. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780199568444.013.11.
Texte intégralChapitres de livres sur le sujet "Variables clustering"
Abdesselam, Rafik. « A Topological Clustering of Individuals ». Dans Studies in Classification, Data Analysis, and Knowledge Organization, 1–9. Cham : Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-09034-9_1.
Texte intégralSteinley, Douglas. « Standardizing Variables in K-means Clustering ». Dans Classification, Clustering, and Data Mining Applications, 53–60. Berlin, Heidelberg : Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-17103-1_6.
Texte intégralCantaluppi, Gabriele, et Marco Passarotti. « Clustering the Corpus of Seneca : A Lexical-Based Approach ». Dans Advances in Latent Variables, 13–25. Cham : Springer International Publishing, 2014. http://dx.doi.org/10.1007/10104_2014_6.
Texte intégralCouturier, Raphaël, Régis Gras et Fabrice Guillet. « Reducing the Number of Variables Using Implicative Analysis ». Dans Classification, Clustering, and Data Mining Applications, 277–85. Berlin, Heidelberg : Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-17103-1_27.
Texte intégralda Silva, Ana Lorga, Helena Bacelar-Nicolau et Gilbert Saporta. « Missing Data in Hierarchical Classification of Variables — a Simulation Study ». Dans Classification, Clustering, and Data Analysis, 121–28. Berlin, Heidelberg : Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-642-56181-8_13.
Texte intégralDi Nuzzo, Cinzia, et Salvatore Ingrassia. « Three-Way Spectral Clustering ». Dans Studies in Classification, Data Analysis, and Knowledge Organization, 111–19. Cham : Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-09034-9_13.
Texte intégralSilva, Ana Lorga, Gilbert Saporta et Helena Bacelar-Nicolau. « Missing Data and Imputation Methods in Partition of Variables ». Dans Classification, Clustering, and Data Mining Applications, 631–37. Berlin, Heidelberg : Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-17103-1_59.
Texte intégralMballo, Chérif, et Edwin Diday. « Kolmogorov-Smirnov for Decision Trees on Interval and Histogram Variables ». Dans Classification, Clustering, and Data Mining Applications, 341–50. Berlin, Heidelberg : Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-17103-1_33.
Texte intégralAdjenughwure, Kingsley S., George N. Botzoris et Basil K. Papadopoulos. « Clustering Variables Based on Fuzzy Equivalence Relations ». Dans Advances in Intelligent Systems and Computing, 219–30. Cham : Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19704-3_18.
Texte intégralHardy, André, et Pascale Lallemand. « Determination of the Number of Clusters for Symbolic Objects Described by Interval Variables ». Dans Classification, Clustering, and Data Analysis, 311–18. Berlin, Heidelberg : Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-642-56181-8_34.
Texte intégralActes de conférences sur le sujet "Variables clustering"
Ha, Sungdo, et Emanuel Sachs. « Categories of process variables : robustness optimization, uniformity tuning, and mean adjustment ». Dans Process Module Metrology, Control and Clustering, sous la direction de Cecil J. Davis, Irving P. Herman et Terry R. Turner. SPIE, 1992. http://dx.doi.org/10.1117/12.56636.
Texte intégralGrinshpoun, Tal. « Clustering Variables by Their Agents ». Dans 2015 IEEE / WIC / ACM International Conference on Web Intelligence and Intelligent Agent Technology (WI-IAT). IEEE, 2015. http://dx.doi.org/10.1109/wi-iat.2015.65.
Texte intégralFerguson, Mark, Sam Devlin, Daniel Kudenko et James Alfred Walker. « Player Style Clustering without Game Variables ». Dans FDG '20 : International Conference on the Foundations of Digital Games. New York, NY, USA : ACM, 2020. http://dx.doi.org/10.1145/3402942.3402960.
Texte intégralYAN, Jian-Jun, Zhuo-Long WANG, Guo-Ping LIU, Zong-Jie HU, Yi-Qin WANG et Rui GUO. « Establishment of Bayesian Networks with Latent Variables Based on Variable Clustering ». Dans 2016 International Conference on Artificial Intelligence Science and Technology (AIST2016). WORLD SCIENTIFIC, 2017. http://dx.doi.org/10.1142/9789813206823_0070.
Texte intégralSato-Ilic, Mika. « Weighted fuzzy clustering on subsets of variables ». Dans 2007 9th International Symposium on Signal Processing and Its Applications (ISSPA). IEEE, 2007. http://dx.doi.org/10.1109/isspa.2007.4555525.
Texte intégralRodriguez, Sara Ines Rizo, et Francisco de Assis Tenorio de Carvalho. « Clustering interval-valued data with automatic variables weighting ». Dans 2019 International Joint Conference on Neural Networks (IJCNN). IEEE, 2019. http://dx.doi.org/10.1109/ijcnn.2019.8852220.
Texte intégralHunyadi, Levente, et Istvan Vajk. « Identification of errors-in-variables systems using data clustering ». Dans 2008 International Conference on Systems, Signals and Image Processing (IWSSIP). IEEE, 2008. http://dx.doi.org/10.1109/iwssip.2008.4604401.
Texte intégralOh, C. H., H. Komatsu, K. Honda et H. Ichihashi. « Fuzzy clustering algorithm extracting principal components independent of subsidiary variables ». Dans Proceedings of the IEEE-INNS-ENNS International Joint Conference on Neural Networks. IJCNN 2000. Neural Computing : New Challenges and Perspectives for the New Millennium. IEEE, 2000. http://dx.doi.org/10.1109/ijcnn.2000.861333.
Texte intégralMinh, Nguyen Van, et Le Hoang Son. « Fuzzy Approaches to Context Variables in Fuzzy Geographically Weighted Clustering ». Dans Second International Conference on Information Technology, Control, Chaos, Modeling and Applications. Academy & Industry Research Collaboration Center (AIRCC), 2015. http://dx.doi.org/10.5121/csit.2015.50503.
Texte intégralTolner, Ferenc, Sandor Fegyverneki, Gyorgy Eigner et Balazs Barta. « Clustering based on Preferences with K-modes using Categorical Variables ». Dans 2021 IEEE 19th International Symposium on Intelligent Systems and Informatics (SISY). IEEE, 2021. http://dx.doi.org/10.1109/sisy52375.2021.9582485.
Texte intégralRapports d'organisations sur le sujet "Variables clustering"
Wang, Chih-Hao, et Na Chen. Do Multi-Use-Path Accessibility and Clustering Effect Play a Role in Residents' Choice of Walking and Cycling ? Mineta Transportation Institute, juin 2021. http://dx.doi.org/10.31979/mti.2021.2011.
Texte intégralWeijters, Bert. Cluster Analysis in R : From Theory to Practice. Instats Inc., 2023. http://dx.doi.org/10.61700/3xjho79mx2fc0706.
Texte intégralRaykov, Tenko. Latent Class Analysis and Mixture Modeling. Instats Inc., 2023. http://dx.doi.org/10.61700/tkd5fah8evykd469.
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