Parametric Inference
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Uncertainty estimation in hydrodynamic modeling using Bayesian techniques
RESUMO A avaliação de incertezas tem emergido como estudo primordial para se conhecerem os efeitos dos erros inerentes aos processos de modelagem de perfis de escoamento de vazões de cheia, de natureza aleatória e epistêmica, presentes em dados de entrada como vazões e topobatimetria, na estrutura e parametrização dos modelos matemáticos utilizados
RBRH. Publicado em: 17/10/2019
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2. Field parametric geostatistics - An alternative to tackle gold grade estimations
Abstract High anomalous grades are very common in gold deposits, whose presence requires careful treatment to prevent overestimation of metal content. Mineral resource analysts have worked on the estimation of several gold deposits, and none of the classical methods were able to avoid manual interventions, such as cutting high grades for local estimation or
REM, Int. Eng. J.. Publicado em: 2019-03
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3. Discrete Distributions Estimation via Bernstein Copulas / Estimação de distribuições discretas via cópulas de Bernstein
As relações de dependência entre variáveis aleatórias é um dos assuntos mais discutidos em probabilidade e estatística e a forma mais abrangente de estudar essas relações é por meio da distribuição conjunta. Nos últimos anos vem crescendo a utilização de cópulas para representar a estrutura de dependência entre variáveis aleatórias em uma
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/03/2012
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4. Inference rules for generic code migration of aspect-oriented programs
The latest versions of AspectJ { the most popular aspect oriented extension for Java { must cope with complex changes that occurred in the Java type system, specially with the parametric polymorphism which aims to improve the type safety and the readability of the source code. However, for legacy and non-generic constructions to take advantage of this pervas
Publicado em: 2010
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5. Application of theory of value-end of the nucleus and smoothing Stochastic in income distribution of the poor in the state of Cearà / AplicaÃÃo da teoria do valor extinto e suavizaÃÃo por nÃcleo estocÃstico na distribuiÃÃo de renda dos pobres no estado do CearÃ
The research of estimating of poverty in Brazil have been concentrated using the ools of statistical inference or the inefficient use of some ad hoc distributions, or hrough studies of convergence as the b-convergence and s-convergence. This work ontributed to a discussion of different methods of non-parametric statistical inference, with the aim of estimati
Publicado em: 2009
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6. Uma abordagem bayesiana para mapeamento de QTLs em populações experimentais / A Bayesian approach for mapping QTL in experimental populations
Many traits in plants and animals have quantitative nature, influenced by multiple genes. With the new molecular techniques, it has been possible to map the loci, which control the quantitative traits, called QTL (Quantitative Trait Loci). Mapping a QTL means to identify its position in the genome, as well as to estimate its genetics effects. The great diffi
Publicado em: 2009
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7. Correlação da composição corporal com a função pulmonar e com a força muscular respiratória em indivíduos com a Trissomia 21 no Distrito Federal
Introduction: Overweight and respiratory malfunctions are frequently found in Trysomy 21 bearers. Such disturbances are potentially able to lead to conditions which endanger the quality of life of affected individuals, thus aggravating their physical health and excluding them from social interaction. Purpose: the purpose of this academic essay was to investi
Publicado em: 2009
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8. A study of Bayesian methods for survival data with missing covariates. / Um estudo de métodos bayesianos para dados de sobrevivência com omissão nas covariáveis
The development of methods dealing with missing data is recent in Statistics and is the target of many researchers. The presence of missing values in the covariates is very common in statistical analysis and, in particular, in clinical, epidemiological and enviromental studies for survival data. This work considers a bayesian approach to analise data with mi
Publicado em: 2007
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9. Métodos atuariais aplicados à determinação da taxa de prêmio de contratos de seguro agrícola: um estudo de caso. / Actuarial methods applied to the determination of the premium rate of crop insurance contracts: a case study.
This research analyses alternative methods of pricing agricultural insurance contract based on regional yields. The premium rate is calculated using three different approaches: nonparametric method to estimate the density of the agricultural yield; parametric approach fitting the Normal and Beta distributions; and, hierarchical Bayesian models. The data gene
Publicado em: 2005
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10. Redes bayesianas para inferÃncia de redes regulatÃrias de genes
With the development of functional genomics, data on a great number of species are being obtained in huge volumes. Technologies to measure the differences of the gene expression, through mRNA concentration (microarray), have become extremely popular, and their costs are decreasing. The reconstruction of genetic networks from gene expression data to study the
Publicado em: 2005
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11. An exploratory study on typology and marketing information system / Um estudo exploratório sobre tipologia e sistema de informação de marketing
A lot of times, the executives face situations in that they are forced to make decisions with base in your feeling, without disposing of safe information with relationship to the collection use and treatment of data that supply believable information for support your electric outlet of decision. In that sense, in a scenery more and more competitive, the ince
Publicado em: 2005
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12. Evaluation of methods parametric and non parametric in the analysis of the efficiency of the milk production. / Avaliação de métodos paramétricos e não paramétricos na análise da eficiência da produção de leite.
The objective of the study is test the most applied methods in the analysis of the relative efficiency, purposing the comparation between a producer and a group of resembled producers, or a producer with the entire sample, as the stochastic frontiers (random border) case. The tested methods were the DEA (Data Envelopment Analysis), the stochastic frontier
Publicado em: 2003