Monitoring the coefficient of variation: A literature review
There are some situations when the process mean fluctuates from time to time but is still
considered as in-control and the process standard deviation is a linear function of the …
considered as in-control and the process standard deviation is a linear function of the …
Run-sum control charts for monitoring the coefficient of variation
The coefficient of variation (CV) is a unit-free and effective normalized measure of
dispersion. Monitoring the CV is a crucial approach in Statistical Process Control when the …
dispersion. Monitoring the CV is a crucial approach in Statistical Process Control when the …
Monitoring the coefficient of variation using a variable sampling interval EWMA chart
In recent years, the coefficient of variation (CV) chart is receiving increasing attention in
quality control. A number of studies demonstrated that adaptive charts could detect process …
quality control. A number of studies demonstrated that adaptive charts could detect process …
Monitoring the coefficient of variation using a variable sample size EWMA chart
Control charts for monitoring the coefficient of variation (CV) have been receiving a lot of
attention in the literature, with numerous more powerful and robust CV charts being …
attention in the literature, with numerous more powerful and robust CV charts being …
Comparing the efficacy of coefficient of variation control charts using generalized multiple dependent state sampling with various run-rule control charts
This paper aimed to develop a coefficient of variation (CV) control chart utilizing the
generalized multiple dependent state (GMDS) sampling approach for CV monitoring. We …
generalized multiple dependent state (GMDS) sampling approach for CV monitoring. We …
New adaptive control charts for monitoring the multivariate coefficient of variation
An adaptive control chart is one of the most effective techniques in Statistical Process
Control (SPC). The coefficient of variation (CV) is common in many real life applications …
Control (SPC). The coefficient of variation (CV) is common in many real life applications …
On the performance of VSI Shewhart control chart for monitoring the coefficient of variation in the presence of measurement errors
In this paper, we propose a variable sampling interval Shewhart control chart to monitor the
coefficient of variation (CV) squared, denoted by VSI SH-γ 2. The new model overcomes the …
coefficient of variation (CV) squared, denoted by VSI SH-γ 2. The new model overcomes the …
Hotelling's T2 control charts with fixed and variable sample sizes for monitoring short production runs
Short production runs are common in enterprises that require a high degree of flexibility and
variety in manufacturing processes. To date, past research on short production runs has little …
variety in manufacturing processes. To date, past research on short production runs has little …
On designing efficient multivariate exponentially weighted moving average control chart for compositional data using variable sample size
Conventionally, the standard process monitoring control charts (CC s) focused on fixed
sample size (FSS). An optimal statistical scheme is proposed in this study using a variable …
sample size (FSS). An optimal statistical scheme is proposed in this study using a variable …
Monitoring the coefficient of variation using a variable parameters chart
This article is the first of its kind which proposes a Variable Parameters (VP) chart to monitor
the coefficient of variation (CV). Formulae for various performance measures and the …
the coefficient of variation (CV). Formulae for various performance measures and the …