Results 221 to 230 of about 124,031 (252)

The Accelerated Failure Time Model Under Biased Sampling

Biometrics, 2010
Summary Chen (2009, Biometrics) studies the semi‐parametric accelerated failure time model for data that are size biased. Chen considers only the uncensored case and uses hazard‐based estimation methods originally developed for censored observations. However, for uncensored data, a simple linear regression on the log scale is more natural and provides
Micha, Mandel, Ya'akov, Ritov
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Bayesian semiparametric inference for the accelerated failure‐time model

Canadian Journal of Statistics, 1997
AbstractBayesian semiparametric inference is considered for a loglinear model. This model consists of a parametric component for the regression coefficients and a nonparametric component for the unknown error distribution. Bayesian analysis is studied for the case of a parametric prior on the regression coefficients and a mixture‐of‐Dirichlet‐processes
Kuo, Lynn, Mallick, Bani
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Analysis of Failure Time Data with Mixed-Effects Accelerated Failure Time Model

Communications in Statistics - Simulation and Computation, 2011
In randomized clinical trials or observational studies, subjects are recruited at multiple treating sites. Factors that vary across sites may have some influence on outcomes; therefore, they need to be taken into account to get better results. We apply the accelerated failure time (AFT) model with linear mixed effects to analyze failure time data ...
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Linear Interpolation With a Nonparametric Accelerated Failure-Time Model

Journal of the American Statistical Association, 1988
Abstract Assuming a nonparametric accelerated failure-time model, a method is proposed for extrapolating low stress-response probabilities on negative-sloping line segments in the stress-failure-time plane. The method (analogous to linear interpolation in dose-response studies) results in simultaneous extrapolation ahead in time and down in stress.
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Accelerated failure time models for counting processes

Biometrika, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lin, D. Y., Wei, L. J., Ying, Zhiliang
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Accelerated failure time model with quantile information

Annals of the Institute of Statistical Mathematics, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhao, Mu, Wang, Yixin, Zhou, Yong
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Accelerated Failure Time Models

2023
Ton J. Cleophas, Aeilko H. Zwinderman
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A class of semi parametric regressions for the accelerated failure time model

Biometrika, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Accelerated Failure Time Models with Auxiliary Covariates

Journal of Biometrics & Biostatistics, 2012
In this paper we study semi-parametric inference procedure for accelerated failure time models with auxiliary information about a main exposure variable. We use a kernel smoothing method to introduce the auxiliary covariate to the likelihood function. The regression parameters are then estimated through maximization of the estimated likelihood function.
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Weighted accelerated failure time model

The accelerated failure time (AFT) model is widely used in survival analysis and auxiliary information can be used to improve the efficiency of the model. We developed a weighted AFT model by using empirical likelihood probabilities as weights based on information from previous studies. The proposed model effectively overcomes the challenges associated
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