An Improved Multivariate Short Run Control Chart Based On The CUSUM Statistic
Khoo, Michael B. C. and Gan, H. L. (2005) An Improved Multivariate Short Run Control Chart Based On The CUSUM Statistic. In: IRCMSA 2005 PROCEEDINGS : Proceedings of the 1st IMT-GT Regional Conference on Mathematics Statistics and Their Applications, 13 - 15 June 2005, Parapat, Lake Toba, North Sumatera, Indonesia.
Short run control charting in necessary at the start-up of a process and at the initiation of a new process for which prior information is unavailable. Numerous univariate short run control charts have been introduced to overcome the problems faced by conventional charts in a short run environment. Most practical scenarios involve several related variables. the multivariate short run charts for individual measurements and subgrouped data were proposed so that a joint monitoring of several correlated variables can be made simultaneously in a short run environment (see). This paper aims at improving the performance of the multivariate short run chart for individual measurements by using its statistics to construct a cumulative sum (CUSUM) chart.
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