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A Flexible Joint Longitudinal-Survival Model for Analyzing Longitudinally Sampled Biomarkers
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作者 Sepehr Akhavan Masouleh Tracy Holsclaw +1 位作者 Babak Shahbaba Daniel L. Gillen 《Open Journal of Statistics》 2021年第5期778-805,共28页
We propose a flexible joint longitudinal-survival framework to examine the association between longitudinally collected biomarkers and a time-to-event endpoint. More specifically, we use our method for analyzing the s... We propose a flexible joint longitudinal-survival framework to examine the association between longitudinally collected biomarkers and a time-to-event endpoint. More specifically, we use our method for analyzing the survival outcome of end-stage renal disease patients with time-varying serum albumin measurements. Our proposed method is robust to common parametric assumptions in that it avoids explicit specification of the distribution of longitudinal responses and allows for a subject-specific baseline hazard in the survival component. Fully joint estimation is performed to account for uncertainty in the estimated longitudinal biomarkers that are included in the survival model. 展开更多
关键词 Joint Longitudinal-Survival Bayesian nonparameterics Gaussian Processes
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Concave Group Selection of Nonparameter Additive Accelerated Failure Time Model
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作者 Ling Zhu 《Open Journal of Statistics》 2021年第1期137-161,共25页
In this paper, we have studied the nonparameter accelerated failure time (AFT) additive regression model, whose covariates have a nonparametric effect on high-dimensional censored data. We give the asymptotic property... In this paper, we have studied the nonparameter accelerated failure time (AFT) additive regression model, whose covariates have a nonparametric effect on high-dimensional censored data. We give the asymptotic property of the penalty estimator based on GMCP in the nonparameter AFT model. 展开更多
关键词 Accelerated Failure Time Model Nonparameter Model Group Minimax Concave Penalty Weighted Least Squares Estimation
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