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首页> 外文期刊>Journal of statistical computation and simulation >Maximum weighted adaptive CUSUM charts for simultaneous monitoring of process mean and variance
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Maximum weighted adaptive CUSUM charts for simultaneous monitoring of process mean and variance

机译:最大加权自适应CUSUM图表,用于同时监控过程均值和方差

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摘要

In this paper, we propose maximum weighted adaptive Crosier CUSUM (MaxWACCUSUM) charts with three different unbiased estimators of the process mean and variance shifts for joint monitoring of the mean and variance of a normal process. The MaxWACCUSUM charts provide an overall good performance for detecting a range of joint mean and dispersion shift sizes. The run length characteristics of the proposed charts are computed using the Monte Carlo simulation method. A detailed comparative study is conducted to compare the run length performances of the proposed and existing charts. It is found that the MaxWACCUSUM charts are more sensitive than the maximum EWMA, double EWMA and CUSUM charts when detecting a range of joint shift sizes. Real datasets are considered to support the theory.
机译:在本文中,我们提出了最大加权自适应克莱尔CUSUM(MAXWACCUSUM)图表,其具有三种不同的无偏估计的过程均值和方差变化,用于联合监测正常过程的平均值和方差。 MaxWaccusum图表提供了一种用于检测一系列关节平均值和分散换档尺寸的良好性能。使用Monte Carlo仿真方法计算所提出的图表的运行长度特性。进行详细的比较研究以比较所提出的和现有图表的运行长度性能。发现MaxWACCUSUM图表在检测到一系列关节换档尺寸时比最大EWMA,双EWMA和CUSUM图更敏感。真实数据集被认为支持该理论。

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