A critique of a variety of “memory-based” process monitoring methods

S Knoth, NA Saleh, MA Mahmoud… - Journal of Quality …, 2023 - Taylor & Francis
Many extensions and modifications have been made to standard process monitoring
methods such as the exponentially weighted moving average (EWMA) chart and the …

Exponentially weighted moving average—Moving average charts for monitoring the process mean

S Sukparungsee, Y Areepong, R Taboran - Plos one, 2020 - journals.plos.org
This research aimed to propose a newly-mixed control chart called the Exponentially
Weighted Moving Average—Moving Average Chart (EWMA-MA) to detect the mean change …

Mixed memory control chart based on auxiliary information for simultaneously monitoring of process parameters: An application in glass field

SM Anwar, M Aslam, B Zaman, M Riaz - Computers & Industrial …, 2021 - Elsevier
Cumulative sum (CUSUM) and exponentially weighted moving (EWMA) control charts,
known as memory control charts, are famous to monitor a small-to-moderate shift in the …

Nonparametric mixed exponentially weighted moving average-moving average control chart

MA Raza, A Amin, M Aslam, T Nawaz, M Irfan… - Scientific Reports, 2024 - nature.com
This research designed a distribution-free mixed exponentially weighted moving average-
moving average (EWMA-MA) control chart based on signed-rank statistic to effectively …

An improved Bayesian Modified-EWMA location chart and its applications in mechanical and sport industry

M Aslam, SM Anwar - PLoS One, 2020 - journals.plos.org
Control charts are popular tools in the statistical process control toolkit and the exponentially
weighted moving average (EWMA) chart is one of its essential component for efficient …

A combined mixed-s-skip sampling strategy to reduce the effect of autocorrelation on the X̄ scheme with and without measurement errors

SC Shongwe, JC Malela-Majika… - Journal of Applied …, 2021 - Taylor & Francis
In order to reduce the effect of autocorrelation on the X¯ monitoring scheme, a new sampling
strategy is proposed to form rational subgroup samples of size n. It requires sampling to be …

Homogeneously mixed memory charts with application in the substrate production process

Z Rasheed, H Zhang, SM Anwar… - … Problems in Engineering, 2021 - Wiley Online Library
The cumulative sum (CUSUM) and the exponentially weighted moving average (EWMA)
charts are renowned classical memory charts used to monitor small and moderate shifts in …

[HTML][HTML] Validation of low-cost air quality monitoring platforms using model-based control charts

M Boulic, R Phipps, Y Wang, M Vignes… - Journal of Building …, 2024 - Elsevier
The SARS COVID-19 pandemic highlighted the importance of routine indoor air quality (IAQ)
monitoring. Recent advances in IAQ sensors and remote logging technologies offer …

Homogeneously Weighted Moving Average Control Charts: Overview, Controversies, and New Directions

JC Malela-Majika, SW Human, K Chatterjee - Mathematics, 2024 - mdpi.com
The homogeneously weighted moving average (HWMA) chart is a recent control chart that
has attracted the attention of many researchers in statistical process control (SPC). The …

Desensitized control charts with operational importance for autocorrelated processes

S Jafarian-Namin, MS Fallahnezhad… - Quality Technology & …, 2022 - Taylor & Francis
Organizations that achieved higher capabilities to meet expectations by successfully
implementing quality improvement plans can make adjustments to process monitoring …