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Extensões dos modelos de sobrevivência referente a distribuição Weibull
(Universidade Federal de São Carlos, 2014-03-07)
In this dissertation, two models of probability distributions for the lifetimes until the occurrence of the event produced by a specific cause for elements in a population are reviewed. The first revised model is called ...
Capacidade preditiva de Modelos Credit Scoring em inferência dos rejeitados
(Universidade Federal de São Carlos, 2014-03-28)
Granting credit to an applicant is a decision made in a context of uncertainty. At the moment the lender decides to grant a loan or credit sale there is always the possibility of loss, and, if it is associated with a ...
Risco operacional: o cálculo do capital regulatório usando dependência
(Universidade Federal de São Carlos, 2014-01-16)
In this paper we propose a new method for the calculation of regulatory capital required for operational risk. This method is based on some important assumptions for calculation of this capital, for instance, expert opinion, ...
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 ...
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 ...
Avaliação esportiva utilizando técnicas multivariadas: construção de indicadores e sistemas online
(Universidade Federal de São Carlos, 2014-10-10)
The main objective of this research is to provide statistical tools that allow the comparison
of individuals in a speci ed sports category. Particularly, the present study is focused
on the performance evaluation in ...
Dependência entre perdas em risco operacional
(Universidade Federal de São Carlos, 2014-02-12)
In this work, we present and discuss the operational risk in the financial institutions, Basel Accord II, the structure of dependence between cumulative operational losses, a tool for modeling this dependence (theory of ...
Modelo de mistura com dependência Markoviana de primeira ordem
(Universidade Federal de São Carlos, 2014-09-12)
We present the mixture model with first order dependence, MMM(1). This model corresponds to a redefinition of the hidden Markov model (HMM) where a non observable variable is used to control the mixture. The usual mixture ...
Algoritmo ejeção-absorção metropolizado para segmentação de imagens
(Universidade Federal de São Carlos, 2014-12-19)
We proposed a new split-merge MCMC algorithm for image segmentation. We describe how an image can be subdivided into multiple disjoint regions, with each region having an associated latent indicator variable. The latent ...