Journal ArticleDOI
Effects of Parameter Estimation on Control Chart Properties; A Literature Review
TLDR
In this article, the control chart limits are calculated using parameter estimates from an in-control Phase I reference sample, and statistics based on new samples are compared with the estimated control limits to monitor for departures from the in..Abstract:
Control chart limits are often calculated using parameter estimates from an in-control Phase I reference sample. In Phase II monitoring, statistics based on new samples are compared with the estimated control limits to monitor for departures from the in..read more
Citations
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Journal ArticleDOI
Current research on profile monitoring
TL;DR: The purposes of this paper are to review recent research on the use of control charts to monitor process and product quality profiles and to encourage further research in this area.
Journal ArticleDOI
Some current directions in the theory and application of statistical process monitoring
TL;DR: An overview and perspective of recent research and applications of statistical process monitoring, including health-related monitoring, spatiotemporal surveillance, profile monitoring, use of autocorrelated data, the effect of estimation error, and high-dimensional monitoring, among others are provided.
Journal ArticleDOI
Control chart based on change-point model for monitoring linear profiles
Changliang Zou,Y Zhang +1 more
Abstract: A control chart based on the change-point model is proposed that is able to monitor linear profiles whose parameters are unknown but can be estimated from historical data. This chart can detect a shift in either the intercept, slope or standard deviation. Simulation results show that the proposed approach performs well across a range of possible shifts, and that it can be used during the start-up stages of a process. Simple diagnostic aids are also given to estimate the location of the change and to determine which of the parameters has changed.
Journal ArticleDOI
Plotting basic control charts: tutorial notes for healthcare practitioners
TL;DR: A tutorial-based approach is used to illustrate the selection and construction of four commonly used control charts using examples from healthcare and their use and interpretation of the final SPC chart are provided.
Journal ArticleDOI
Nonparametric Profile Monitoring by Mixed Effects Modeling
TL;DR: A novel control chart is suggested, which incorporates local linear kernel smoothing into the exponentially weighted moving average (EWMA) control scheme and is fast to compute and convenient to use.
References
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Journal ArticleDOI
A review of multivariate control charts
TL;DR: A review of the literature on control charts for multivariate quality control (MQC) is given, with a concentration on developments occurring since the mid-1980s as mentioned in this paper, where several recent articles that give methods for interpreting an out-of control signal on a multivariate control chart are analyzed and discussed.
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Research Issues and Ideas in Statistical Process Control
TL;DR: An overview of current research on control charting methods for process monitoring and improvement and a historical perspective and ideas for future research are given.
Journal ArticleDOI
Using Control Charts to Monitor Process and Product Quality Profiles
TL;DR: This expository paper discusses some of the general issues involved in using control charts to monitor such process- and product-quality profiles and reviews the SPC literature on the topic.
Journal ArticleDOI
X charts with variable sampling intervals
TL;DR: The variable sampling interval (VSI) chart as discussed by the authors uses a short sampling interval if the sample is close to but not actually outside the control limits, and a long sampling interval for the sample if it is closer to target.