A review and critique of auxiliary information-based process monitoring methods

NA Saleh, MA Mahmoud, WH Woodall… - Quality Technology & …, 2023 - Taylor & Francis
We review the rapidly growing literature on auxiliary information-based (AIB) process
monitoring methods. Under this approach, there is an assumption that the auxiliary variable …

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 …

Improved nonparametric control chart based on ranked set sampling with application of chemical data modelling

Z Rasheed, M Khan, NL Abiodun… - Mathematical …, 2022 - Wiley Online Library
The statistical performance of parametric control charts is questionable when the underlying
process does not follow any specified probability distribution. Nonparametric control charts …

[PDF][PDF] Ranked-Set Sampling Based Distribution Free Control Chart with Application in CSTR Process.

IM Almanjahie, Z Rasheed, M Khan… - … in Engineering & …, 2023 - cdn.techscience.cn
Nonparametric (distribution-free) control charts have been introduced in recent years when
quality characteristics do not follow a specific distribution. When the sample selection is …

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 …

A Distribution‐Free THWMA Control Chart under Ranked Set Sampling

H Zhang, Z Rasheed, M Khan… - Mathematical …, 2022 - Wiley Online Library
The basic assumption of the parametric control charts is that the underlying process follows
the specific distribution. The appropriateness of parametric control charts is questionable …

Symmetry of gamma distribution data about the mean after processing with EWMA function

MM Hamasha, MS Obeidat, K Alzoubi… - Scientific Reports, 2023 - nature.com
Abstract Statistical Process Control (SPC) plays a vital role in maintaining quality and
reducing variability in manufacturing processes. Among SPC techniques, the Exponentially …

Reassessment of performance evaluation of EWMA control chart for exponential process

Z Rasheed, H Zhang, SM Anwar - Quality and Reliability …, 2024 - Wiley Online Library
Memory control charts or charts, such as cumulative sums and exponentially weighted
moving average (EWMA), are widely used for tracking minor to moderate changes in …

Improved adaptive EWMA control chart for process location with applications in groundwater physicochemical parameters and glass manufacturing industry

M Arslan, SM Anwar, SA Lone, Z Rasheed, M Khan… - Plos one, 2022 - journals.plos.org
The adaptive exponentially weighted moving average (AEWMA) control charts are the
advanced form of classical memory control charts used for efficiently monitoring small-to …

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 …