发布日期：2013-10-22点击： 发布人：统数院
主题：Optimal accelerated life tests under interval censoring with random removals: the case of Weibull failure distribution
主讲人：丁昌 博士
时间：2013年10月24日（周四）下午15:00
地点：北院卓远楼305
主办单位：统计与数学学院
摘要：In this paper, optimal accelerated life test (ALT) plans are investigated under progressive Type I interval censoring with random removals when lifetimes are Weibull distributed. The optimal ALT plans which minimize the asymptotic variance of the estimated qth quantile for different combinations of total number of inspections and removal probability are presented. For implementation convenience, the practical plans, which adopt the same optimality criterion but the inspection times are determined based on the ideas of equally spaced or equal probability scheme at each stress level, are also derived. Numerical studies are conducted to evaluate the relative efficiency of a practical plan to the corresponding optimal ALT plan. Some suggestions are given to experimenters for selecting an appropriate practical plan in designing an ALT under the proposed censoring scheme.
丁昌博士简介：
香港城市大学统计学博士，副教授。研究领域为可靠性分析和生物统计，目前已完成国家自然科学基金——数学天元基金一项，出版专著一部，发表SCI论文数篇。
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