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Mixed Control Charts Using EWMA Statistics [PDF]
IEEE Access, 2016 In this paper, two mixed control charts are designed for process monitoring when the quality characteristic of interest follows a normal distribution.
Muhammad Aslam +3 more
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Revisiting the one-sided EWMA control chart [PDF]
Journal of Applied Research on Industrial Engineering, 2022 Exponential Weighted Moving Average (EWMA) control charts have been widely used in Statistical Process Control (SPC) to detect small and persistent process shifts.
Duy Duong-Tran +2 more
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A Simple Approach for Monitoring Business Service Time Variation [PDF]
The Scientific World Journal, 2014 Control charts are effective tools for signal detection in both manufacturing processes and service processes. Much of the data in service industries comes from processes having nonnormal or unknown distributions.
Su-Fen Yang, Barry C. Arnold
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Comparative Analysis Between EWMA, DEWMA and Mixed Tukey EWMA Control Chart
Academic Science Journal, 2023 The control chart is a good tool for monitoring. Single and double exponential weighted moving average control charts are suitable charts to detect small shifts in the process parameters.
Kawa M. Jamal Rashid , Sozan S. Haydar
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Walailak Journal of Science and Technology, 2021 From the principles of statistical process control, the observations are assumed to be identically and independently normally distributed, although this assumption is frequently untrue in practice.
Yadpirun SUPHARAKONSAKUN
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Simulation Study for Parametric EWMA and NPWEWPA-SR Control Charts Against Non-Normality Assumptions
Cauchy: Jurnal Matematika Murni dan Aplikasi, 2023 Common control chart types such as EWMA require assumptions to have valid information. The study compares IC robustness and OOC performance for parametric EWMA and NPEWMA-SR control charts in violation of symmetrical assumption.
Anwar Fitrianto +2 more
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A synthetic exponentially weighted moving average control chart to monitor process median based on ranked set sampling [PDF]
ITM Web of Conferences, 2021 Exponentially Weighted Moving Average (EWMA) control charts yield insights into data in a way more comprehensible to the practitioners and researchers because of its capability in discovering small to moderate process mean shifts.
Ng Jing Wen +2 more
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Neutrosophic multivariate EWMA control chart
Decision Science Letters, 2023 The MEWMA chart is one of the traditional multivariate charts which are widely employed in inspecting the quality of manufacturing and services. This chart is created through monitoring the small shifts of mean vectors of variable quality characteristics.
Wibawati Wibawati +2 more
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Monitoring Non-Parametric Profiles using Adaptive EWMA Control Chart [PDF]
Scientific Reports, 2022 Abstract To monitor the quality of a process in statistical process control (SPC), considering a functional relationship between a dependent variable and one or more independent variables which is denoted as profile monitoring is becoming an increasingly common approach.
Abbasi, Saddam Akber +2 more
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Nonparametric EWMA-Type Control Charts for Monitoring Industrial Processes: An Overview [PDF]
International Journal of Mathematical, Engineering and Management Sciences, 2021 In the present paper we provide an up-to-date overview of nonparametric Exponentially Weighted Moving Average (EWMA) control charts. Due to their nonparametric nature, such memory-type schemes are proved to be very useful for monitoring industrial ...
Ioannis S. Triantafyllou, Mangey Ram
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