Bayesian Bootstrap
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Study of repeatability and phenotypical stabilization in kale using frequentist, Bayesian and bootstrap resampling approaches
ABSTRACT. The aim of this study was to obtain information for the genetic improvement of kale through repeatability and phenotypic stabilization studies and to compare methodologies that represent the reliability of the estimated parameters. Thirty-three half-sib progenies were evaluated in a randomized block design with three replicates and six plants per p
Acta Sci., Agron.. Publicado em: 13/06/2019
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2. Família Weibull de razão de chances na presença de covariáveis
A distribuição Weibull é uma escolha inicial freqüente para modelagem de dados com taxas de risco monótonas. Entretanto, esta distribuição não fornece um ajuste paramétrico razoável quando as funções de risco assumem um formato unimodal ou em forma de banheira. Neste contexto, Cooray (2006) propôs uma generalização da família Weibull consider
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/03/2009
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3. Regiões de confiança para a localização do ponto estacionário em superfícies de resposta, usando o método "bootstrap" Bayesiano / Confidence region on the location of the stationary point in response surfaces, a Bayesian bootstrap approach
Experiments in which one or more response variables are influenced by several quantitative factors are very common in agricultural, chemistry, biology and other areas. In this case, the research question consists in studying this relation, being of great utility the use of response surface methodology (RSM). In this context determining the level of the facto
Publicado em: 2008
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4. Análise computacional da origem do subtipo C do HIV-1 na América do Sul / Computational analyses of the origin of subtype C of HIV-1 in South America
The main circulating HIV-1 subtype in South America is B, but C and F also are important and an increasing prevalence of subtype C in southern Brazil and its occurrence in other countries of Latin American has being described. The goal of this study was to analyze phylogenetically HIV-1C samples from South American countries to test the hypothesis that its e
Publicado em: 2008
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5. Genética molecular de populações de Alternaria solani no Brasil / Molecular population genetics of Alternaria solani in Brazil
The analysis of the genetic structure of the population of Alternaria solani is an important component of the molecular epidemiology potato (Po) and tomato (To) early blight. Isolates were sampled from the Northeast, Central-West, Southeast, and South regions of Brazil. AFLP and RAPD markers were used to estimate genetic diversity. A multilocus combined data
Publicado em: 2008
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6. Molecular evidence of polyphyletism in the plant genus Carum L. (Apiaceae)
An analysis of internal transcribed spacer (ITS) DNA sequences of the four species of Carum L. (Apiaceae) known in Italy revealed that this genus is polyphyletic. Maximum parsimony with bootstrap resampling, maximum likelihood and Bayesian inference analyses resulted in three distinct clades: Carum carvi L. clustered within tribe Careae Baill. (former Aegopo
Genetics and Molecular Biology. Publicado em: 2007-03
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7. Modelagem estatística para a determinação de resultados de dados esportivos.
O resultado básico de uma partida de futebol é o seu placar nal, que pode ser visto como um vetor aleatório bivariado. Teoricamente e baseando-se na literatura existente podemos argumentar que o número de gols marcados por um time em uma dada partida obedeça a uma distribuição (univariada) de Poisson. Assim, são estudadas as distribuições de
Publicado em: 2007
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8. Propostas de Testes Multivariados Para Comparar Matrizes de CovariÃncias de PopulaÃÃes Normais Dependentes / Proposed of multivariate tests for comparing covariance matrices of dependent normal populations
A number of tests may be found in the literature to compare k-covariance matrices, assuming independent multivariate normal populations. For the cases that this assumption is violated there is a reduced number of such tests in the literature mainly with a small number of populations. The motivation of this work is to propose new tests based on generalized va
Publicado em: 2006
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9. Stochastic models with heteroscedasticity for time series in finance / Modelos estocásticos com heterocedasticidade para séries temporais em finanças
In this work we present a study of autoregressive conditional heteroskedasticity models (ARCH) and autoregressive models with autoregressive conditional heteroskedasticity errors (AR-ARCH). We also present procedures for the estimation and the selection of these models. The estimates of the parameters of those models are obtained using both Maximum Likelihoo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/05/2005
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10. Modelagem de dados de eventos recorrentes via processo de Poisson com termo de fragilidade. / Modelling Recurrent Event Data Via Poisson Process With a Frailty Term.
Nesta tese é analisado situações onde eventos de interesse podem ocorrer mais que uma vez para o mesmo indivíduo. Embora os estudos nessa área tenham recebido considerável atenção nos últimos anos, as técnicas que podem ser aplicadas a esses casos especiais ainda são pouco exploradas. Além disso, em problemas desse tipo, é razoável supor que ex
Publicado em: 2003
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11. Overcredibility of molecular phylogenies obtained by Bayesian phylogenetics
Bayesian phylogenetics has recently been proposed as a powerful method for inferring molecular phylogenies, and it has been reported that the mammalian and some plant phylogenies were resolved by using this method. The statistical confidence of interior branches as judged by posterior probabilities in Bayesian analysis is generally higher than that as judged
National Academy of Sciences.
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12. Bootstrap, Bayesian probability and maximum likelihood mapping: exploring new tools for comparative genome analyses
BioMed Central.