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Now showing items 11-16 of 16
Modelos de sobrevivência bivariados induzidos por fragilidade
(Universidade Federal de São Carlos, 2022-07-18)
Frailty models have been developed to quantify both heterogeneity as well as association in multivariate time-to-event data. The frailty distributions used in many studies include the gamma, inverse Gaussian (IG) or stable ...
Bayesian variable selection for logistic mixture models with Pólya-Gamma data augmentation
(Universidade Federal de São Carlos, 2022-02-15)
In this work, Bayesian methods for estimating and selecting variables in a mixture of logistic regressions model are presented.
In order to simplify its Bayesian estimation, we extend the data augmentation approach ...
A nonparametric bayesian approach for modeling and comparison of functional data
(Universidade Federal de São Carlos, 2022-09-02)
The current advances of technology provides, among other things, several ways of collecting
data, which enlarges the possibility of studying new phenomena. Researches focused on studying
the functional relation between ...
Observações atípicas em alta dimensão
(Universidade Federal de São Carlos, 2022-09-15)
Outliers and heteroskedastic noise are two common situations in Statistics. Nowadays the amount
of generated data is very high and for this reason it is possible to find high dimensional data
(the dimension d is just as ...
Modelos de sobrevivência induzidos por fragilidade discreta com fração de cura e riscos proporcionais
(Universidade Federal de São Carlos, 2022-10-21)
This work presents two new survival models induced by discrete frailty with unobserved heterogeneity and proportional hazards structure, for lifetime data. The first model consider the discrete frailty variable with Katz ...
Estimação do número de comunidades no modelo estocástico de blocos com correção de grau
(Universidade Federal de São Carlos, 2022-12-14)
The stochastic block model (SBM) is a random graph model that splits the set of vertices into blocks, and
the probability connection between each pair of vertices depends on the blocks to which the vertices
belong. The ...