Run rules schemes for statistical process monitoring: A literature review
Different control charts are developed for monitoring various types of quality characteristics
in the area of Statistical Process Monitoring (SPM). Moreover, new techniques are proposed …
in the area of Statistical Process Monitoring (SPM). Moreover, new techniques are proposed …
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 …
strategy is proposed to form rational subgroup samples of size n. It requires sampling to be …
On autoregressive model selection for the exponentially weighted moving average control chart of residuals in monitoring the mean of autocorrelated processes
Y Li, E Pan, Y Xiao - Quality and Reliability Engineering …, 2020 - Wiley Online Library
With the development of automation technologies, data can be collected in a high frequency,
easily causing autocorrelation phenomena. Control charts of residuals have been used as a …
easily causing autocorrelation phenomena. Control charts of residuals have been used as a …
Process Capability Assessment for Auto-Correlated Data in the Presence of Measurement Errors
MZ Anis, K Bera - International Journal of Reliability, Quality and …, 2022 - World Scientific
In this paper, we shall discuss some statistical properties of the estimator of C p when
sample observations are autocorrelated and affected by measurement errors. The presence …
sample observations are autocorrelated and affected by measurement errors. The presence …
On monitoring the process mean of autocorrelated observations with measurement errors using the w‐of‐w runs‐rules scheme
SC Shongwe, JC Malela‐Majika… - Quality and Reliability …, 2020 - Wiley Online Library
Runs‐rules have been widely used since the 1950s in industrial and nonindustrial process
monitoring applications to improve the performance of basic and other traditional monitoring …
monitoring applications to improve the performance of basic and other traditional monitoring …
Shewhart-type monitoring schemes with supplementary w-of-w runs-rules to monitor the mean of autocorrelated samples
SC Shongwe, JC Malela-Majika - Communications in Statistics …, 2022 - Taylor & Francis
The simplicity of the Shewhart X¯ charts makes it popular in practice; however, it is
insensitive to detecting small shifts. In an effort to preserve its simplicity but increase its …
insensitive to detecting small shifts. In an effort to preserve its simplicity but increase its …
The new synthetic and runs-rules schemes to monitor the process mean of autocorrelated observations with measurement errors
SC Shongwe, JC Malela-Majika… - … in Statistics-Theory and …, 2021 - Taylor & Francis
The use of the 2-of-(H+ 1) runs-rules and synthetic schemes to improve the performance of
the currently available X¯ schemes in monitoring the process mean under the combined …
the currently available X¯ schemes in monitoring the process mean under the combined …
A new double sampling scheme to monitor the process mean of autocorrelated observations using an AR (1) model with a skip sampling strategy
SC Shongwe, JC Malela-Majika - Computers & Industrial Engineering, 2021 - Elsevier
There are numerous academic researches on statistical process monitoring schemes that
assume that sequential observations are independent and identically distributed (iid); …
assume that sequential observations are independent and identically distributed (iid); …
A new variable sampling size and interval synthetic and runs-rules schemes to monitor the process mean of autocorrelated observations with measurement errors
S Shongwe, J Malela-Majika - International Journal of …, 2020 - growingscience.com
Autocorrelation and measurement errors have a negative effect on the performance of any
monitoring scheme; therefore, more efficient monitoring schemes are required to monitor …
monitoring scheme; therefore, more efficient monitoring schemes are required to monitor …
Combined effect of autocorrelation and measurement errors on the adaptive X monitoring schemes
SC Shongwe, JC Malela-Majika - Transactions of the …, 2021 - journals.sagepub.com
For independent and identically distributed observations, and those with measurement
errors only, the adaptive designs (ie variable sampling sizes (VSS), variable sampling …
errors only, the adaptive designs (ie variable sampling sizes (VSS), variable sampling …