Homogeneously mixed memory charts with application in the substrate production process
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 …
charts are renowned classical memory charts used to monitor small and moderate shifts in …
A new exponentially weighted moving average control chart to monitor count data with applications in healthcare and manufacturing
Attribute control charts are widely used to monitor count data. Many distributions are
proposed to model and monitor count data. This article has developed an exponentially …
proposed to model and monitor count data. This article has developed an exponentially …
A progressive mean control chart for dispersed count data considering tail behavior
F Mustafa, RA Khan Sherwani… - Quality Technology & …, 2024 - Taylor & Francis
Popular discrete distributions generally neglect tail behavior in the count data despite its
significance in many industrial and non-industrial processes. The generalized Conway …
significance in many industrial and non-industrial processes. The generalized Conway …
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 …
has attracted the attention of many researchers in statistical process control (SPC). The …
On the improved generalized linear model‐based monitoring methods for Poisson distributed processes
Control charts are widely used tool that provides quality inspectors with sensitive information
for maintaining manufacturing process productivity. Numerous model‐based techniques …
for maintaining manufacturing process productivity. Numerous model‐based techniques …
Performance of multivariate homogeneously weighted moving average chart for monitoring the process mean in the presence of measurement errors
Multivariate control charts are useful tools for monitoring the product quality in which the
process outcome is expressed by several correlated variables. The multivariate …
process outcome is expressed by several correlated variables. The multivariate …
Economic design of residuals MEWMA control chart with variable sampling intervals and sample size
L Xue, Q Wang, C Li, L An - Communications in Statistics …, 2023 - Taylor & Francis
In order to improve the monitoring efficiency of the multivariable autocorrelation process and
reduce the cost of process control, an economic design method of residual Multivariate …
reduce the cost of process control, an economic design method of residual Multivariate …
On Designing a New Control Chart Using the Generalized Conway–Maxwell–Poisson Distribution to Monitor Count Data
Many researchers employed Poisson distribution-based control charts to monitor count data.
Nevertheless, these charts can handle count data that deviate from the Poisson assumption …
Nevertheless, these charts can handle count data that deviate from the Poisson assumption …
New extended distribution-free homogenously weighted monitoring schemes for monitoring abrupt shifts in the location parameter
TI Letshedi, JC Malela-Majika, SC Shongwe - Plos one, 2022 - journals.plos.org
A homogeneously weighted moving average (HWMA) monitoring scheme is a recently
proposed memory-type scheme that gained its popularity because of its simplicity and …
proposed memory-type scheme that gained its popularity because of its simplicity and …
Phase II control charts for monitoring the depth-ratio of ball-bearings involving three normal variables
L Jin, A Mukherjee, Z Song, J Zhang - Journal of Applied Statistics, 2024 - Taylor & Francis
This paper investigates the problem of monitoring the ratio involving three variables, jointly
distributed as trivariate normal. The Shewhart-type and two exponentially weighted moving …
distributed as trivariate normal. The Shewhart-type and two exponentially weighted moving …