Double sampling monitoring schemes: a literature review and some future research ideas

CM Motsepa, JC Malela-Majika… - Communications in …, 2023 - Taylor & Francis
Adapted from the acceptance sampling field, the double sampling monitoring schemes
implement a two-stage strategy to decide whether the process being monitored is in-control …

Capability index-based control chart for monitoring process mean using repetitive sampling

OA Adeoti, JO Olaomi - Communications in Statistics-Theory and …, 2018 - Taylor & Francis
ABSTRACT A new process capability index (PCI) control chart for monitoring the process
mean using repetitive sampling is presented. The design of the proposed control chart is …

Optimal designs of multivariate synthetic| S| control chart based on median run length

MH Lee, MBC Khoo - Communications in Statistics-Theory and …, 2017 - Taylor & Francis
The multivariate synthetic generalized sample variance| S|(synthetic| S|) chart is a
combination of the| S| sub-chart and the conforming run length sub-chart. A procedure for …

Optimal designs of the side sensitive synthetic chart for the coefficient of variation based on the median run length and expected median run length

WC Yeong, PY Lee, SL Lim, PS Ng, KW Khaw - Plos one, 2021 - journals.plos.org
The side sensitive synthetic chart was proposed to improve the performance of the synthetic
chart to monitor shifts in the coefficient of variation (γ), by incorporating the side sensitivity …

Optimal design of synthetic np control chart based on median run length

MH Lee, MBC Khoo - Communications in Statistics-Theory and …, 2017 - Taylor & Francis
The synthetic np chart is a combination of the np sub-chart and the conforming run length
sub-chart. A procedure for the optimal design of the synthetic np chart is provided by …

Double sampling| S| control chart with variable sample size and variable sampling interval

MH Lee, MBC Khoo - Communications in Statistics-Simulation and …, 2018 - Taylor & Francis
This study presents a control chart for monitoring shifts in the covariance matrix of a
multivariate normally distributed process. This chart combines the double sampling, variable …

Synthetic double sampling s chart

MH Lee, MBC Khoo - Communications in Statistics-Theory and …, 2017 - Taylor & Francis
This study proposes a synthetic double sampling s chart that integrates the double sampling
(DS) s chart and the conforming run length chart. An optimization procedure is proposed to …

A side-sensitive double sampling X¯ monitoring scheme with estimated process parameters

CM Motsepa, JC Malela-Majika… - Communications in …, 2022 - Taylor & Francis
In statistical process monitoring (SPM), most of the monitoring schemes are designed
assuming that the process parameters for the underlying distribution are known (ie, Case K) …

Distribution‐free double‐sampling precedence monitoring scheme to detect unknown shifts in the location parameter

JC Malela‐Majika, SC Shongwe… - Quality and …, 2021 - Wiley Online Library
In most applications, parametric monitoring schemes are used to monitor the majority of
industrial and nonindustrial processes in order to improve the quality of the outputs or …

Side-sensitive group runs double sampling (SSGRDS) chart for detecting mean shifts

MBC Khoo, EK Tan, ZL Chong… - International Journal of …, 2015 - Taylor & Francis
This paper proposes a side-sensitive group runs double sampling (SSGRDS) chart to detect
shifts in the process mean. It improves the side-sensitive group runs chart proposed by …