Performance comparison of some likelihood ratio-based statistical surveillance methods

被引:15
作者
Mahmoud, Mahmoud A. [1 ]
Woodall, William H. [2 ]
Davis, Robert E. [3 ]
机构
[1] Cairo Univ, Fac Econ & Polit Sci, Dept Stat, Cairo, Egypt
[2] Virginia Tech, Dept Stat, Blacksburg, VA USA
[3] TransUnion CRIF, Tampa, FL USA
关键词
CUSUM chart; likelihood ratio; Shiryayev-Roberts chart; Shewhart chart; statistical process control; statistical surveillance;
D O I
10.1080/02664760802005878
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
Using Markov chain representations, we evaluate and compare the performance of cumulative sum (CUSUM) and Shiryayev-Roberts methods in terms of the zero- and steady-state average run length and worst-case signal resistance measures. We also calculate the signal resistance values from the worst- to the best-case scenarios for both the methods. Our results support the recommendation that Shewhart limits be used with CUSUM and Shiryayev-Roberts methods, especially for low values of the size of the shift in the process mean for which the methods are designed to detect optimally.
引用
收藏
页码:783 / 798
页数:16
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