Optimal Design of a CUSUM Chart for a Mean Shift of Unknown Size

• Autores: Jong-Hyun Ryu, Hing Wan, Sujin Kim
• Localización: Journal of quality technology: A quarterly journal of methods applications and related topics, ISSN 0022-4065, Vol. 42, Nº. 3, 2010, págs. 311-326
• Idioma: inglés
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• Resumen

  • The cumulative sum (CUSUM) control chart is a popular method for detecting a process mean shift, but it can perform poorly when the actual size of the shift is significantly different from the assumed size. Using an average run length-based performance measure called an expected weighted run length (EWRL), a method is propose to optimally design a CUSUM chart. The method can be extended to other CUSUM-based control charts.