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Analysis of failure time data with missing and informative auxiliary covariates.
Title
Analysis of failure time data with missing and informative auxiliary covariates.
Author
Ghosh, Lipika
Date Created
2011
Subjects--Topical
Statistics, Mathematics, Biometry
Description
In this dissertation we use Cox's regression model to failure time data with continuous informative auxiliary variables in the presence of a validation subsample. The work is motivated by a common problem of missing or mismeasured covariates in su...
Improving Semiparametric Estimation of Longitudinal Data with Covariance Function
Title
Improving Semiparametric Estimation of Longitudinal Data with Covariance Function
Author
Fang, Fang
Date Created
2018
Subjects--Topical
Mathematics, Statistics, Biometry
Description
In this dissertation, we aim to improve efficiency of estimation in longitudinal data under generalized semi-parametric varying-coefficient models.First, we investigate a profile weighted least square approach for model estimation by utilizing wit...
Statistical estimation and inference for the associations of multivariate recurrent event processes
Title
Statistical estimation and inference for the associations of multivariate recurrent event processes
Author
Chen, Peilin
Date Created
2019
Subjects--Topical
Statistics, Biometry
Description
In this dissertation, we aim to develop a brand new method with a two-stage procedure to investigate the association between multivariate recurrent event processes. First, under the assumption of independent censoring, we model each recurrent even...