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Mostrando ítems 11-20 de 73
Análise da qualidade do ar : um estudo de séries temporais para dados de contagem
(Universidade Federal de São Carlos, 2013-04-30)
The aim of this study was to investigate the monthly amount of unfavourable days to pollutant dispersion in the atmosphere on the metropolitan region of S ão Paulo (RMSP). It was considered two data sets derived from the ...
Distribuição de Poisson bivariada aplicada à previsão de resultados esportivos
(Universidade Federal de São Carlos, 2014-04-23)
The modelling of paired counts data is a topic that has been frequently discussed in several threads of research. In particular, we can cite bivariate counts, such as the analysis of sports scores. As a result, in this ...
Abordagem estatística em modelos para séries temporais de contagem
(Universidade Federal de São Carlos, 2013-05-06)
In this work, it was estudied the models INGARCH , GLARMA and GARMA to model count time series data with Poisson and Negative Binomial discrete conditional distributions. The main goal was analyze in classic and bayesian ...
Inferência em modelos de regressão com erros de medição sob enfoque estrutural para observações replicadas
(Universidade Federal de São Carlos, 2014-03-10)
The usual regression model fits data under the assumption that the explanatory variable is measured without error. However, in many situations the explanatory variable is observed with measurement errors. In these cases, ...
Estimação do tamanho populacional a partir de um modelo de captura-recaptura com heterogeneidade
(Universidade Federal de São Carlos, 2014-03-14)
In this work, we consider the estimation of the number of errors in a software from a closed population. The process of estimating the population size is based on the capture-recapture method which consists of examining ...
Modelo alfa normal assimétrico multivariado para redes de classificação
(Universidade Federal de São Carlos, 2016-03-16)
In this Thesis we expose the proposition of a new class of probability distributions, the so called alpha skew normal multivariate, an extension of the univariate Normal Alpha distribution, introduced by Elal-Olivero (2010). ...
Avaliação de testes diagnósticos na ausência de padrão ouro considerando relaxamento da suposição de independência condicional, covariáveis e estratificação da população: uma abordagem bayesiana
(Universidade Federal de São Carlos, 2011-12-16)
The application of a gold standard reference test in all or part of the sample under investigation is often not feasible for the majority of diseases affecting humans, either by a lack of consensus on which testing may be ...
Modelos estatísticos para LGD : uma visão clássica e bayesiana
(Universidade Federal de São Carlos, 2011-03-28)
Every day in financial institution is common to nd customers who are unable to honor their commitments. When this occurs we say that the individual is in default. In a possible economic downturn the portfolio could su_er ...
Aspectos práticos da estimação do modelo de mistura via processo de Dirichlet
(Universidade Federal de São Carlos, 2013-04-03)
We review the Dirichlet process mixture model and investigate its performance as a classification method. The first aspect considered is its sensibility to the choice of location parameter of the base distribution. The ...
Introdução ao controle estatístico de processo on-line
(Universidade Federal de São Carlos, 2011-04-07)