Likelihood Ratio-Based Distribution-Free EWMA Control Charts

• Autores: Changliang Zou, Fugee Tsung
• Localización: Journal of quality technology: A quarterly journal of methods applications and related topics, ISSN 0022-4065, Vol. 42, Nº. 2, 2010, págs. 174-196
• Idioma: inglés
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• Resumen

  • Distribution-free control charts used for monitoring location parameters may not be effective in some situations when there is a change of distribution over time. A new distribution-free chart is discussed that is based on the combination of a nonparametric goodness-of-fit test and the exponentially weighted moving-average control method. The chart provides robust protection against variation in underlying distributions and is particularly effective in start-up and short-run industrial applications.