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Title: Study of an imputation algorithm for the analysis of interval-censored data
Authors: Xiao, X.
Hu, Q.
Yu, D.
Xie, M. 
Keywords: interval-censored data
moment invariance criterion
quantile-filling algorithm
single point imputation
Weibull distribution
Issue Date: Mar-2014
Source: Xiao, X., Hu, Q., Yu, D., Xie, M. (2014-03). Study of an imputation algorithm for the analysis of interval-censored data. Journal of Statistical Computation and Simulation 84 (3) : 477-490. ScholarBank@NUS Repository.
Abstract: In this article, an iterative single-point imputation (SPI) algorithm, called quantile-filling algorithm for the analysis of interval-censored data, is studied. This approach combines the simplicity of the SPI and the iterative thoughts of multiple imputation. The virtual complete data are imputed by conditional quantiles on the intervals. The algorithm convergence is based on the convergence of the moment estimation from the virtual complete data. Simulation studies have been carried out and the results are shown for interval-censored data generated from the Weibull distribution. For the Weibull distribution, complete procedures of the algorithm are shown in closed forms. Furthermore, the algorithm is applicable to the parameter inference with other distributions. From simulation studies, it has been found that the algorithm is feasible and stable. The estimation accuracy is also satisfactory. © 2012 Taylor & Francis.
Source Title: Journal of Statistical Computation and Simulation
ISSN: 00949655
DOI: 10.1080/00949655.2012.716441
Appears in Collections:Staff Publications

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