Bayesian Inference Statistical Inference
Mostrando 13-24 de 30 artigos, teses e dissertações.
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13. A Bayesian approach to estimate the accuracy of "in-house" ELISA assay to measure rabies antibodies from compulsory vaccinated dogs and cattle
Rabies is a vaccine-preventable disease that causes acute encephalitis in mammals, and it is still a significant public health problem in numerous countries. Infected dogs represent the main vectors involved in human rabies. Additionally, cattle rearing close to geographic areas where vampire bats are found presents an important connection with rural epidemi
Journal of Venomous Animals and Toxins including Tropical Diseases. Publicado em: 2009
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14. A straightforward multiallelic significance test for the Hardy-Weinberg equilibrium law
Much forensic inference based upon DNA evidence is made assuming Hardy-Weinberg Equilibrium (HWE) for the genetic loci being used. Several statistical tests to detect and measure deviation from HWE have been devised, and their limitations become more obvious when testing for deviation within multiallelic DNA loci. The most popular methods-Chi-square and Like
Genetics and Molecular Biology. Publicado em: 2009
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15. 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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16. Análise estatística para dados de contagem longitudinais na presença de covariáveis: aplicações na área médica / Statistical Analyze For Longitudinal Counting Data in Presence of Covariates: Application in Medical Research
COELHO-BARROS, E. A. Analise estatstica para dados de contagem longitudinais na presenca de covariaveis: Aplicac~oes na area medica. Dissertac~ao (mestrado) - Faculdade de Medicina de Ribeir~ao Preto - USP, Ribeir~ao Preto - SP - Brasil, 2009. Longitudinal counting data in the presence of covariates is very common in many applications, especially considering
Publicado em: 2009
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17. Test of hypothesis in majoritarian election / Testes de hipóteses em eleições majoritárias
The problem of inference about a proportion, widely explored in the statistical literature, plays a key role in the development of several theories of statistical inference and, invariably, is the object of investigation and discussion in comparative studies among different schools of inference. In addition, the estimation of proportions, as well as test of
Publicado em: 2008
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18. Análise bayesiana do modelo fatorial dinâmico para um vetor de séries temporais usando distribuições elípticas. / Bayesian Analysis of the dynamic factorial models for a time series vector using elliptical distribuitions.
The factor analysis is an important statistical tool that has wide practical applications and it explains the correlation among a large number of observable variables in terms of a small number of unobservable variables, known as latent variables. The proposal of this work is the Bayesian analysis, which incorporates the information we have concerning the pa
Publicado em: 2008
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19. Statistical Inference in Methods of Analysis of Functional Magnetic Resonance / Inferência estatística em métodos de análise de ressonância magnética funcional
No presente trabalho, conceitos de inferência estatística são utilizados para aplicação e comparação de diferentes métodos de análise de sinais de ressonância magnética funcional. A idéia central baseia-se na obtenção da distribuição de probabilidade da variável aleatória de interesse, para cada método estudado e sob diferentes valores da
Publicado em: 2008
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20. 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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21. Considerations on the relation between hevay tailed distributions and conflict of information in bayesian inference / Considerações sobre a relação entre distribuições de cauda pesada e conflitos de informação em inferencia bayesiana
Em inferência bayesiana lidamos com informações provenientes dos dados e com informações a priori. Eventualmente, um ou mais outliers podem causar um conflito entre as fontes de informação. Basica!llente, resolver um conflito entre as fontes de informações implica em encontrar um conjunto de restrições tais que uma das fontes domine, em certo sent
Publicado em: 2007
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22. Models for zero-inflated and overdispersed proportion data - a bayesian approach. / Modelos para proporções com superdispersão e excesso de zeros - um procedimento Bayesiano.
Neste trabalho, tres modelos foram ajustados a um conjunto de dados obtido de um ensaio de controle biol´ogico para Diatraea saccharalis, uma praga comum em planta¸coes de cana-de-a¸c´ucar. Usando a distribui¸cao binomial como modelo de probabilidade, um ajuste adequado nao pode ser obtido, devido `a superdispersao gerada pela variabililidade
Publicado em: 2004
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23. Meta-análise de parâmetros genéticos de características de crescimento em bovinos de corte sob enfoques clássico e Bayesiano. / Meta-analysis of genetic parameters of growth traits on beef cattle under classic and bayesian approach.
The increasing volume of research publications as a consequence of scientific development and eventually with divergent conclusions obtained in different studies about the same subject are the two main motivations for compiling the information of these works. Statistical procedures, particularly the meta-analysis, were developed in order to obtain a unique a
Publicado em: 2004
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24. Abordagem Bayesiana na análise genética de populações utilizando dados de marcadores moleculares. / Bayesian approach to the genetic analysis of populations using molecular markers data.
Among the various aspects generally considered in the genetic characterization of natural populations of plant species, the evaluation of the degree of genetic structure within and among individuals and the estimation of parameters related to the species mating system are of great importance. In general, considerable effort is focused on the estimation of th
Publicado em: 2002