Efficiency enhancement of the modified EWMA control method with conditional expected delay for change detection in processes
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Published:2023-09-15
Issue:
Volume:9
Page:
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ISSN:2297-4687
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Container-title:Frontiers in Applied Mathematics and Statistics
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language:
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Short-container-title:Front. Appl. Math. Stat.
Author:
Khan Nasrullah,Aslam Muhammad,Albassam Mohammed
Abstract
This study investigates the efficiency of a modified exponentially weighted moving average (EWMA) control method using conditional expected delay to improve its efficiency in detecting changes in a process over time. While the modified EWMA control method is commonly used for this purpose, it can sometimes experience delays in detecting changes. The proposed method aims to address this limitation by incorporating conditional expected delay. The study utilizes simulations to conduct a performance comparison between the modified EWMA control method and the conventional EWMA control, employing the metric of conditional expected delay. Simulation results demonstrate the modified EWMA control method with conditional expected delay in terms of accurately and rapidly detecting changes. Overall, this study concludes that the integration of conditional expected delay into the modified EWMA control method can increase its effectiveness in detecting changes in a process. This has significant practical implications for a variety of industries that require timely and accurate detection of changes to maintain product quality and optimize processes.
Publisher
Frontiers Media SA
Subject
Applied Mathematics,Statistics and Probability
Reference14 articles.
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3. Modified exponentially weighted moving average (EWMA) control chart for an analytical process data;Patel;J Chem Engin Mat Sci.,2011
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