Lee, Ming Ha
(2006)
Optimal statistical designs of multivariate EWMA and multivariate CUSUM charts based on average run length and median run leng.
Masters thesis, Universiti Sains Malaysia.
Abstract
Carta kawalan multivariat ialah alat yang berkuasa dalam kawalan proses yang
melibatkan kawalan serentak beberapa cirian kualiti yang berkorelasi. Carta-carta
multivariat hasil tambah longgokan {MCUSUM) dan multivariat purata bergerak
berpemberat eksponen (MEWMA) sentiasa dicadangkan dalam kawalan proses
apabila pengesanan cepat anjakan tetap yang keciJ atau sederhana dalam vektor min
adalah diingini.
A multivariate control chart is a powerful tool in process control involving a
simultaneous monitoring of several correlated quality characteristics. The multivariate
cumulative sum (MCUSUM) and multivariate exponentially weighted moving average
(MEWMA) charts are often recommended in process monitoring when a quick
detection of small or moderate sustained shifts in the mean vector is desired.
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