教師資料查詢 | 類別: 期刊論文 | 教師: 林千代 Lin Chien-tai (瀏覽個人網頁)

標題:Analysis of two-sample censored data using a semiparametric mixture model
學年97
學期2
出版(發表)日期2009/07/01
作品名稱Analysis of two-sample censored data using a semiparametric mixture model
作品名稱(其他語言)
著者Li, Gang; 林千代; Lin, Chien-tai
單位淡江大學數學學系
出版者Springer
著錄名稱、卷期、頁數Acta Mathematicae Applicatae Sinica, English Series 25(3), pp.389-398
摘要In this article we study a semiparametric mixture model for the two-sample problem with right censored data. The model implies that the densities for the continuous outcomes are related by a parametric tilt but otherwise unspecified. It provides a useful alternative to the Cox (1972) proportional hazards model for the comparison of treatments based on right censored survival data. We propose an iterative algorithm for the semiparametric maximum likelihood estimates of the parametric and nonparametric components of the model. The performance of the proposed method is studied using simulation. We illustrate our method in an application to melanoma.
關鍵字Biased sampling; EM algorithm; maximum likelihood estimation; mixture model; semiparametric model
語言英文
ISSN0168-9673
期刊性質國外
收錄於SCI
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