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Modelagem de dados de sobrevivência via modelo de risco logístico generalizado
(Universidade Federal de São Carlos, 2005-03-30)
The modeling of data of survival with the presence of covariáveis by means of the risk function
has been each used time more had the easiness of interpretation One of the examples most important
of risk models is the model ...
Inferência bayesiana para teste disgnóstico.
(Universidade Federal de São Carlos, 2004-03-05)
The simpler screening tests applied to detect disease instead of the more elaborated, usually result in the risk of incorrect diagnostic. However, these tests are only useful when the risks of misclassifications are known ...
Regiões de incerteza para a curva ROC em testes diagnósticos
(Universidade Federal de São Carlos, 2009-03-03)
Diagnostic tests are methods capable of indicating the presence or absence of a disease, with a probability of error. The performance of a diagnostic test can be verified by some indicator, as: the specificity, the sensitivity ...
Estimação de escores binomiais correlacionados: uma aplicação em Credit Scoring
(Universidade Federal de São Carlos, 2008-06-09)
For the most part of modelings in the credit risk area, the most widely used model is the credit scoring, and as the main statistical technique, the binary logistic regression, used to determine whether a customer is a ...
Família Weibull de razão de chances na presença de covariáveis
(Universidade Federal de São Carlos, 2009-03-18)
The Weibull distribuition is a common initial choice for modeling data with monotone hazard rates. However, such distribution fails to provide a reasonable parametric _t when the hazard function is unimodal or bathtub-shaped. ...
Modelo com mistura de multinomiais aplicado à identificação de proteínas similares.
(Universidade Federal de São Carlos, 2005-02-24)
The proteins are important molecules from the cells, whereas they take part since the construction of cell´s framing until the transmission of the genetic information between the generations. A protein can be characterized ...
Utilização de técnicas bayesianas em modelos de regressão de Poisson para dados de contagem longitudinais e dados de contagem com medidas repetidas apresentando excesso de zeros
(Universidade Federal de São Carlos, 2008-06-09)
In medical and biological researches we often .nd count data. For longitudinal count data, usual Poisson regression models, assuming independence among observations, are not applicable because of the correlation of these ...
Estimação Bayesiana do tamanho de uma população de diabéticos através de listas de pacientes
(Universidade Federal de São Carlos, 2005-02-25)
In this work, a bayesian methodology is shown to estimate the size of a diabethic-su¤ering population through lists containing information data of patients. The applied methodology is analogous of capture-recaptures in ...
Métodos de agrupamento na análise de dados de expressão gênica
(Universidade Federal de São Carlos, 2009-02-16)
The clustering techniques have frequently been used in literature to the analyse data in several fields of application. The main objective of this work is to study such techniques. There is a large number of clustering ...
Função de intensidade Poisson perturbada pelo número de ocorrências para dados de eventos recorrentes
(Universidade Federal de São Carlos, 2007-06-22)