Literatura académica sobre el tema "Hierarchical variables"
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Artículos de revistas sobre el tema "Hierarchical variables"
Shneiberg, I. Ya. "Hierarchical Sequences of Random Variables". Theory of Probability & Its Applications 31, n.º 1 (marzo de 1987): 137–41. http://dx.doi.org/10.1137/1131018.
Texto completoYoshimura, Masataka y Kazuhiro Izui. "Smart Optimization of Machine Systems Using Hierarchical Genotype Representations". Journal of Mechanical Design 124, n.º 3 (6 de agosto de 2002): 375–84. http://dx.doi.org/10.1115/1.1486013.
Texto completoLopera Gonzalez, Luis I. y Oliver Amft. "Mining hierarchical relations in building management variables". Pervasive and Mobile Computing 26 (febrero de 2016): 91–101. http://dx.doi.org/10.1016/j.pmcj.2015.10.009.
Texto completoCamiz, S., J. Denimal y V. Pillar. "Hierarchical factor classification of variables in ecology". Community Ecology 7, n.º 2 (diciembre de 2006): 165–79. http://dx.doi.org/10.1556/comec.7.2006.2.4.
Texto completoWang, Jie y Xiao Dong Zhu. "Analysis and Application of a Kind of Hierarchical Fuzzy Systems". Advanced Materials Research 219-220 (marzo de 2011): 1097–100. http://dx.doi.org/10.4028/www.scientific.net/amr.219-220.1097.
Texto completoPulido-Valdeolivas, I., D. Gómez-Andrés, J. A. Martin, J. López, E. Gómez-Barrena y E. Rausell. "P6.14 Hierarchical clustering of Gillette Gait Index variables". Clinical Neurophysiology 122 (junio de 2011): S87. http://dx.doi.org/10.1016/s1388-2457(11)60303-9.
Texto completoKristan, William B. "Sources and Expectations for Hierarchical Structure in Bird-habitat Associations". Condor 108, n.º 1 (1 de febrero de 2006): 5–12. http://dx.doi.org/10.1093/condor/108.1.5.
Texto completoJIA, WEIJIA y ZHIBIN SUN. "ON COMPUTATIONAL COMPLEXITY OF HIERARCHICAL OPTIMIZATION". International Journal of Foundations of Computer Science 13, n.º 05 (octubre de 2002): 667–70. http://dx.doi.org/10.1142/s0129054102001369.
Texto completoAsfaw Dagne, Getachew. "Bayesian analysis of hierarchical poisson models with latent variables". Communications in Statistics - Theory and Methods 28, n.º 1 (1999): 119–36. http://dx.doi.org/10.1080/03610929908832286.
Texto completoHajnal, Istvan y Geert Loosveldt. "The Sensitivity of Hierarchical Clustering Solutions to Irrelevant Variables". Bulletin of Sociological Methodology/Bulletin de Méthodologie Sociologique 50, n.º 1 (marzo de 1996): 56–70. http://dx.doi.org/10.1177/075910639605000105.
Texto completoTesis sobre el tema "Hierarchical variables"
Auyang, Arick Gin-Yu. "Robustness and hierarchical control of performance variables through coordination during human locomotion". Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/42837.
Texto completoRIGGI, DANIELE. "Mixture factor model for hierarchical data structure and applications to the italian educational school system". Doctoral thesis, Università degli Studi di Milano-Bicocca, 2011. http://hdl.handle.net/10281/19465.
Texto completoChastaing, Gaëlle. "Indices de Sobol généralisés par variables dépendantes". Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENM046.
Texto completoA mathematical model aims at characterizing a complex system or process that is too expensive to experiment. However, in this model, often strongly non linear, input parameters can be affected by a large uncertainty including errors of measurement of lack of information. Global sensitivity analysis is a stochastic approach whose objective is to identify and to rank the input variables that drive the uncertainty of the model output. Through this analysis, it is then possible to reduce the model dimension and the variation in the output of the model. To reach this objective, the Sobol indices are commonly used. Based on the functional ANOVA decomposition of the output, also called Hoeffding decomposition, they stand on the assumption that the incomes are independent. Our contribution is on the extension of Sobol indices for models with non independent inputs. In one hand, we propose a generalized functional decomposition, where its components is subject to specific orthogonal constraints. This decomposition leads to the definition of generalized sensitivity indices able to quantify the dependent inputs' contribution to the model variability. On the other hand, we propose two numerical methods to estimate these constructed indices. The first one is well-fitted to models with independent pairs of dependent input variables. The method is performed by solving linear system involving suitable projection operators. The second method can be applied to more general models. It relies on the recursive construction of functional systems satisfying the orthogonality properties of summands of the generalized decomposition. In parallel, we illustrate the two methods on numerical examples to test the efficiency of the techniques
Pfister, Mark. "Distribution of a Sum of Random Variables when the Sample Size is a Poisson Distribution". Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/etd/3459.
Texto completoHay, John Leslie. "Statistical modelling for non-Gaussian time series data with explanatory variables". Thesis, Queensland University of Technology, 1999.
Buscar texto completoGebremeskel, Haftu Gebrehiwot. "Implementing hierarchical bayesian model to fertility data: the case of Ethiopia". Doctoral thesis, Università degli studi di Padova, 2016. http://hdl.handle.net/11577/3424458.
Texto completoBackground: L’Etiopia è una nazione divisa in 9 regioni amministrative (definite su base etnica) e due città. Si tratta di una nazione citata spesso come esempio di alta fecondità e rapida crescita demografica. Nonostante gli sforzi del governo, fecondità e cresita della popolazione rimangono elevati, specialmente a livello regionale. Pertanto, lo studio della fecondità in Etiopia e nelle sue regioni – caraterizzate da un’alta variabilità – è di vitale importanza. Un modo semplice di rilevare le diverse caratteristiche della distribuzione della feconditàè quello di costruire in modello adatto, specificando diverse funzioni matematiche. In questo senso, vale la pena concentrarsi sui tassi specifici di fecondità, i quali mostrano una precisa forma comune a tutte le popolazioni. Tuttavia, molti paesi mostrano una “simmetrizzazione” che molti modelli non riescono a cogliere adeguatamente. Pertanto, per cogliere questa la forma dei tassi specifici, sono stati utilizzati alcuni modelli parametrici ma l’uso di tali modelliè ancora molto limitato in Africa ed in Etiopia in particolare. Obiettivo: In questo lavoro si utilizza un nuovo modello per modellare la fecondità in Etiopia con quattro obiettivi specifici: (1). esaminare la forma dei tassi specifici per età dell’Etiopia a livello nazionale e regionale; (2). proporre un modello che colga al meglio le varie forme dei tassi specifici sia a livello nazionale che regionale. La performance del modello proposto verrà confrontata con quella di altri modelli esistenti; (3). adattare la funzione di fecondità proposta attraverso un modello gerarchico Bayesiano e mostrare che tale modelloè sufficientemente flessibile per stimare la fecondità delle singole regioni – dove le stime possono essere imprecise a causa di una bassa numerosità campionaria; (4). confrontare le stime ottenute con quelle fornite da metodi non gerarchici (massima verosimiglianza o Bayesiana semplice) Metodologia: In questo studio, proponiamo un modello a 4 parametri, la Normale Asimmetrica, per modellare i tassi specifici di fecondità. Si mostra che questo modello è sufficientemente flessibile per cogliere adeguatamente le forme dei tassi specifici a livello sia nazionale che regionale. Per valutare la performance del modello, si è condotta un’analisi preliminare confrontandolo con altri dieci modelli parametrici e non parametrici usati nella letteratura demografica: la funzione splie quadratica, la Cubic-Spline, i modelli di Coale e Trussel, Beta, Gamma, Hadwiger, polinomiale, Gompertz, Peristera-Kostaki e l’Adjustment Error Model. I modelli sono stati stimati usando i minimi quadrati non lineari (nls) e il Criterio d’Informazione di Akaike viene usato per determinarne la performance. Tuttavia, la stima per le singole regioni pu‘o risultare difficile in situazioni dove abbiamo un’alta variabilità della numerosità campionaria. Si propone, quindi di usare procedure gerarchiche che permettono di ottenere stime più affidabili rispetto ai modelli non gerarchici (“pooling” completo o “unpooling”) per l’analisi a livello regionale. In questo studia si formula un modello Bayesiano gerarchico ottenendo la distribuzione a posteriori dei parametri per i tassi di fecnodità specifici a livello regionale e relativa stima dell’incertezza. Altri metodi non gerarchici (Bayesiano semplice e massima verosimiglianza) vengono anch’essi usati per confronto. Gli algoritmi Gibbs Sampling e Metropolis-Hastings vengono usati per campionare dalla distribuzione a posteriori di ogni parametro. Anche il metodo del “Data Augmentation” viene utilizzato per ottenere le stime. La robustezza dei risultati viene controllata attraverso un’analisi di sensibilità e l’opportuna diagnostica della convergenza degli algoritmi viene riportata nel testo. In tutti i casi, si sono usate distribuzioni a priori non-informative. Risultati: I risutlati ottenuti dall’analisi preliminare mostrano che il modello Skew Normal ha il pi`u basso AIC nelle regioni Addis Ababa, Dire Dawa, Harari, Affar, Gambela, Benshangul-Gumuz e anche per le stime nazionali. Nelle altre regioni (Tigray, Oromiya, Amhara, Somali e SNNP) il modello Skew Normal non risulta il milgiore, ma comunque mostra un buon adattamento ai dati. Dunque, il modello Skew Normal risulta il migliore in 6 regioni su 11 e sui tassi specifici di tutto il paese. Conclusioni: Dunque, il modello Skew Normal risulta globalmente il migliore. Da questo risultato iniziale, siè partiti per costruire i modelli Gerachico Bayesiano, Bayesiano semplice e di massima verosimiglianza. Il risultato del confronto tra questi tre approcci è che il modello gerarchico fornisce stime più preciso rispetto agli altri.
Gardiner, Robert B. "The relationship between teacher qualifications and chemistry achievement in the context of other student and teacher/school variables : application of hierarchical linear modelling /". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0003/MQ42384.pdf.
Texto completoHan, Gang. "Modeling the output from computer experiments having quantitative and qualitative input variables and its applications". Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1228326460.
Texto completoSaves, Paul. "High dimensional multidisciplinary design optimization for eco-design aircraft". Electronic Thesis or Diss., Toulouse, ISAE, 2024. http://www.theses.fr/2024ESAE0002.
Texto completoNowadays, there has been significant and growing interest in improving the efficiency of vehicle design processes through the development of tools and techniques in the field of multidisciplinary design optimization (MDO). In fact, when optimizing both the aerodynamics and structures, one needs to consider the effect of the aerodynamic shape variables and structural sizing variables on the weight which also affects the fuel consumption. MDO arises as a powerful tool that can perform this trade-off automatically. The objective of the Ph. D project is to propose an efficient approach for solving an aero-structural wing optimization process at the conceptual design level. The latter is formulated as a constrained optimization problem that involves a large number of design variables (typically 700 variables). The targeted optimization approach is based on a sequential enrichment (typically efficient global optimization (EGO)), using an adaptive surrogate model. Kriging surrogate models are one of the most widely used in engineering problems to substitute time-consuming high fidelity models. EGO is a heuristic method, designed for the solution of global optimization problems that has performed well in terms of quality of the solution computed. However, like any other method for global optimization, EGO suffers from the curse of dimensionality, meaning that its performance is satisfactory on lower dimensional problems, but deteriorates as the dimensionality of the optimization search space increases. For realistic aircraft wing design problems, the typical size of the design variables exceeds 700 and, thus, trying to solve directly the problems using EGO is ruled out. In practical test cases, high dimensional MDO problems may possess a lower intrinsic dimensionality, which can be exploited for optimization. In this context, a feature mapping can then be used to map the original high dimensional design variable onto a sufficiently small design space. Most of the existing approaches in the literature use random linear mapping to reduce the dimension, sometimes active learning is used to build this linear embedding. Generalizations to non-linear subspaces are also proposed using the so-called variational autoencoder. For instance, a composition of Gaussian processes (GP), referred as deep GP, can be very useful. In this PhD thesis, we will investigate efficient parameterization tools to significantly reduce the number of design variables by using active learning technics. An extension of the method could be also proposed to handle mixed continuous and categorical inputs using some previous works on low dimensional problems. Practical implementations within the OpenMDAO framework (an open source MDO framework developed by NASA) are expected
Guin, Ophélie. "Méthodes bayésiennes semi-paramétriques d'extraction et de sélection de variables dans le cadre de la dendroclimatologie". Phd thesis, Université Paris Sud - Paris XI, 2011. http://tel.archives-ouvertes.fr/tel-00636704.
Texto completoLibros sobre el tema "Hierarchical variables"
Babeshko, Lyudmila y Irina Orlova. Econometrics and econometric modeling in Excel and R. ru: INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/1079837.
Texto completoHierarchical Modelling of Discrete Longitudinal Data: Applications of Markov Chain Monte Carlo. Munich, Germany: Herbert Witz Verlag, Wissenschaft, 1997.
Buscar texto completoLee, Patricia, Donald Stewart y Stephen Clift. Group Singing and Quality of Life. Editado por Brydie-Leigh Bartleet y Lee Higgins. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780190219505.013.22.
Texto completoCemgil, A. Taylan, Simon Godsill, Paul Peeling y Nick Whiteley. Bayesian statistical methods for audio and music processing. Editado por Anthony O'Hagan y Mike West. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780198703174.013.25.
Texto completoŚlusarski, Marek. Metody i modele oceny jakości danych przestrzennych. Publishing House of the University of Agriculture in Krakow, 2017. http://dx.doi.org/10.15576/978-83-66602-30-4.
Texto completoSobczyk, Eugeniusz Jacek. Uciążliwość eksploatacji złóż węgla kamiennego wynikająca z warunków geologicznych i górniczych. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN, 2022. http://dx.doi.org/10.33223/onermin/0222.
Texto completoCapítulos de libros sobre el tema "Hierarchical variables"
Ilić, Marija D. y Shell Liu. "Structural Modeling and Control Design Using Interaction Variables". En Hierarchical Power Systems Control, 61–81. London: Springer London, 1996. http://dx.doi.org/10.1007/978-1-4471-3461-9_4.
Texto completoAzbel, Mark Ya. "Non-Separable Variables: Hierarchical Quantization and Tunneling Resonances". En Quantum Coherence in Mesoscopic Systems, 597–605. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4899-3698-1_39.
Texto completoAbdesselam, Rafik. "A Topological Clustering of Individuals". En 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.
Texto completoBickel, Peter J., Ya’acov Ritov y Alexandre B. Tsybakov. "Hierarchical selection of variables in sparse high-dimensional regression". En Institute of Mathematical Statistics Collections, 56–69. Beachwood, Ohio, USA: Institute of Mathematical Statistics, 2010. http://dx.doi.org/10.1214/10-imscoll605.
Texto completoHengst, Bernhard. "Generating Hierarchical Structure in Reinforcement Learning from State Variables". En PRICAI 2000 Topics in Artificial Intelligence, 533–43. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-44533-1_54.
Texto completoda Silva, Ana Lorga, Helena Bacelar-Nicolau y Gilbert Saporta. "Missing Data in Hierarchical Classification of Variables — a Simulation Study". En 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.
Texto completoTanioka, Kensuke y Hiroshi Yadohisa. "Three-Mode Hierarchical Subspace Clustering with Noise Variables and Occasions". En Studies in Classification, Data Analysis, and Knowledge Organization, 91–99. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01264-3_8.
Texto completoBonales Valencia, Joel y Odette Virginia Delfín Ortega. "Hierarchical Structure of Variables in Export Agribusiness: The Case of Michoacan". En Lecture Notes in Business Information Processing, 144–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-30433-0_15.
Texto completoRoss, Amanda y Victor L. Willson. "Hierarchical Multiple Regression Analysis Using at Least Two Sets of Variables (In Two Blocks)". En Basic and Advanced Statistical Tests, 61–74. Rotterdam: SensePublishers, 2017. http://dx.doi.org/10.1007/978-94-6351-086-8_10.
Texto completoZhao, Feixiang, Mingzhe Liu, Binyang Jia, Xin Jiang y Jun Ren. "Key Variables Soft Measurement of Wastewater Treatment Process Based on Hierarchical Extreme Learning Machine". En Proceedings in Adaptation, Learning and Optimization, 45–54. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-23307-5_6.
Texto completoActas de conferencias sobre el tema "Hierarchical variables"
de Soto, Adolfo R. "Hierarchical Linguistic Variables". En NAFIPS 2009 - 2009 Annual Meeting of the North American Fuzzy Information Processing Society. IEEE, 2009. http://dx.doi.org/10.1109/nafips.2009.5156432.
Texto completoYoshimura, Masataka y Kazuhiro Izui. "Smart Optimization of Machine Systems Using Hierarchical Genotype Representations". En ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/dac-8631.
Texto completoYoshimura, Masataka y Kazuhiro Izui. "Global System Optimization Using Hierarchical Genetic Algorithms Based on Decision-Making Components". En ASME 2001 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/detc2001/dac-21075.
Texto completoChen, Zhengming, Feng Xie, Jie Qiao, Zhifeng Hao y Ruichu Cai. "Some General Identification Results for Linear Latent Hierarchical Causal Structure". En Thirty-Second International Joint Conference on Artificial Intelligence {IJCAI-23}. California: International Joint Conferences on Artificial Intelligence Organization, 2023. http://dx.doi.org/10.24963/ijcai.2023/397.
Texto completoJayasimha, D. N. "Partially shared variables and hierarchical shared memory multiprocessor architectures". En Eleventh Annual International Phoenix Conference on Computers and Communication [1992 Conference Proceedings]. IEEE, 1992. http://dx.doi.org/10.1109/pccc.1992.200539.
Texto completoSilva, Eliana Costa e., Isabel Cristina Lopes, Aldina Correia y A. Manuela Gonçalves. "Hierarchical clusters of phytoplankton variables in dammed water bodies". En APPLIED MATHEMATICS AND COMPUTER SCIENCE: Proceedings of the 1st International Conference on Applied Mathematics and Computer Science. Author(s), 2017. http://dx.doi.org/10.1063/1.4981978.
Texto completoTunc, Pervin. "ORGANIZATIONAL BEHAVIOR VARIABLES AND HIERARCHICAL REGRESSION ANALYSIS: A RESEARCH". En 5th SGEM International Multidisciplinary Scientific Conferences on SOCIAL SCIENCES and ARTS SGEM2018. STEF92 Technology, 2018. http://dx.doi.org/10.5593/sgemsocial2018/1.5/s05.094.
Texto completoLiu, Yu, Xiaolei Yin, Paul Arendt, Wei Chen y Hong-Zhong Huang. "An Extended Hierarchical Statistical Sensitivity Analysis Method for Multilevel Systems With Shared Variables". En ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-87434.
Texto completoMichalek, Jeremy J. y Panos Y. Papalambros. "BB-ATC: Analytical Target Cascading Using Branch and Bound for Mixed-Integer Nonlinear Programming". En ASME 2006 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/detc2006-99040.
Texto completoZhang, Xiao-Ling, Po Ting Lin, Hae Chang Gea y Hong-Zhong Huang. "Bounded Target Cascading in Hierarchical Design Optimization". En ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48614.
Texto completoInformes sobre el tema "Hierarchical variables"
Chamberlain, Gary y Guido Imbens. Hierarchical Bayes Models with Many Instrumental Variables. Cambridge, MA: National Bureau of Economic Research, septiembre de 1996. http://dx.doi.org/10.3386/t0204.
Texto completoZhang, Zhen. From CFA to SEM with Moderated Mediation in Mplus. Instats Inc., 2022. http://dx.doi.org/10.61700/e6lwwzg27rqsr469.
Texto completoZyphur, Michael. From CFA to SEM with Moderated Mediation in R. Instats Inc., 2022. http://dx.doi.org/10.61700/75sjvfs0ve1d4469.
Texto completoZyphur, Michael. From CFA to SEM with Moderated Mediation in Mplus. Instats Inc., 2022. http://dx.doi.org/10.61700/a6tru90pc9miu469.
Texto completoZyphur, Michael. From CFA to SEM with Moderated Mediation in R (Free On-Demand Seminar). Instats Inc., 2022. http://dx.doi.org/10.61700/xria1if8u3nip469.
Texto completoZyphur, Michael. Intermediate SEM in Stata: From CFA to SEM. Instats Inc., 2022. http://dx.doi.org/10.61700/9qo0ssbbzp4nl469.
Texto completoSwan, Megan y Christopher Calvo. Site characterization and change over time in semi-arid grassland and shrublands at three parks?Chaco Culture National Historic Park, Petrified Forest National Park, and Wupatki National Monument: Upland vegetation and soils monitoring 2007?2021. National Park Service, 2024. http://dx.doi.org/10.36967/2301582.
Texto completoMcPhedran, R., K. Patel, B. Toombs, P. Menon, M. Patel, J. Disson, K. Porter, A. John y A. Rayner. Food allergen communication in businesses feasibility trial. Food Standards Agency, marzo de 2021. http://dx.doi.org/10.46756/sci.fsa.tpf160.
Texto completoSearcy, Stephen W. y Kalman Peleg. Adaptive Sorting of Fresh Produce. United States Department of Agriculture, agosto de 1993. http://dx.doi.org/10.32747/1993.7568747.bard.
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