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Bayesian path specific frailty models for multi-state survival data with applications
(The International Biometric SocietyArlington, TX, 2015-09)
Multi-state models can be viewed as generalizations of both the standard and competing risks models for survivaldata. Models for multi-state data have been the theme of many recent published works. Motivated by bone marrow ...
Un frailty gamma en supervivencia bivariante
(Universidad Nacional de Colombia, 2004)
Consideramos un modelo de supervivencia bivariante basado en la presencia de una covariable aleatoria no observada, frailty, que induce dependencia entre los tiempos de fallo y actúa bajo hipótesis de riesgo proporcional. ...
Bayesian transformation models for multivariate survival data
(John Wiley and SonsMalden, 2014-03)
In this paper, we propose a general class of Gamma frailty transformation models
for multivariate survival data. The transformation class includes the commonly used proportional
hazards and proportional odds models. The ...
Modelos de sobrevivência bivariados induzidos por fragilidade
(Universidade Federal de São CarlosUFSCarPrograma Interinstitucional de Pós-Graduação em Estatística - PIPGEsCâmpus 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 ...
Cure rate models: alternatives methods to estimate the cure rate
(Universidade Federal de São CarlosUFSCarPrograma Interinstitucional de Pós-Graduação em Estatística - PIPGEsCâmpus São Carlos, 2020-07-16)
Cure rate models in survival data studies has formed an important field in the area and has attracted the attention of researchers.
In the search for new models of cure rate, the objective of this work is to propose ...
Modelos de sobrevivência com fração de cura usando um termo de fragilidade e tempo de vida Weibull modificada generalizada
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Estatística - PPGEs, 2011-02-24)
In survival analysis, some studies are characterized by having a significant fraction of units that will never suffer the event of interest, even if accompanied by a long period of time. For the analysis of long-term data, ...
Degradation modeling for reliability analysis with time-dependent structure based on the inverse gaussian distribution
(Universidade Federal de São CarlosUFSCarPrograma Interinstitucional de Pós-Graduação em Estatística - PIPGEsCâmpus São Carlos, 2017-04-07)
Conventional reliability analysis techniques are focused on the occurrence of failures over
time. However, in certain situations where the occurrence of failures is tiny or almost null, the
estimation of the quantities ...
Modelo de mistura paramétrico com fragilidade na presença de covariáveis
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Estatística - PPGEs, 2013-04-23)
Some studies involving survival data are characterized by showing a significant proportion of censored data, that is, individuals who will never experience the event of interest, even if accompanied by a long period of ...
Avaliação genética da eficiência reprodutiva em vacas pardo-suíças por meio da análise de sobrevivência
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Produção AnimalSistemas de Produção Sustentáveis no Semi-árido; Caracterização, conservação e melhoramento genético, 2014-02-20)
Among the traits of economic importance to dairy cattle livestock those related to sexual precocity and longevity of the herd are essential to the success of the activity, because the stayability time of a cow in a herd ...