MathematicsProcess monitoring plays a vital role in ensuring quality stability, and, operational efficiency across fields such as manufacturing, finance, biomedical science, and environmental monitoring.
Jun-Hao Lu, Chang-Yun Lin
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Application and Use of Multivariate Control Charts In a BTA Deep Hole Drilling Process [PDF]
Deep hole drilling methods are used for producing holes with a high length-to-diameter ratio, good surface finish and straightness. The process is subject to dynamic disturbances usually classified as either chatter vibration or spiralling. In this paper,
Hering, Franz +3 more
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Design and Application of Risk Adjusted Cumulative Sum (RACUSUM) for Online Strength Monitoring of Ready Mixed Concrete [PDF]
The Cumulative Sum (CUSUM) procedure is an effective statistical process control tool that can be used to monitor quality of ready mixed concrete (RMC) during its production process.
Dutta, Goutam, Sarkar Debasis
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Multivariate Statistical Process Control Charts: An Overview [PDF]
In this paper we discuss the basic procedures for the implementation of multivariate statistical process control via control charting. Furthermore, we review multivariate extensions for all kinds of univariate control charts, such as multivariate ...
Bersimis, Sotiris +2 more
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Adaptive EWMA control chart using Bayesian approach under ranked set sampling schemes with application to Hard Bake process. [PDF]
Sci Rep, 2023 Khan I +4 more
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Individuals charts and additional tests for changes in spread [PDF]
Some authors recommend the use of an additional test for detecting increases in the spread, when using a control chart for individual observations. We examine this recommendation both in a practical situation and theoretically. Both studies show that the
Trip, Albert, Wieringa, Jaap E.
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A distribution-free EWMA control chart for monitoring time-between-events-and-amplitude data. [PDF]
J Appl Stat, 2021 Wu S, Castagliola P, Celano G.
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The performance of a modified EWMA control chart for monitoring autocorrelated PM2.5 and carbon monoxide air pollution data. [PDF]
PeerJ, 2020 Supharakonsakun Y +2 more
europepmc +1 more source
Stein EWMA Control Charts for Count Processes
The monitoring of serially independent or autocorrelated count processes is considered, having a Poisson or (negative) binomial marginal distribution under in-control conditions. Utilizing the corresponding Stein identities, exponentially weighted moving-average (EWMA) control charts are constructed, which can be flexibly adapted to uncover zero ...
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Correction: Design of an EWMA control chart by adaptation of smoothing constant based on a function of estimated shift. [PDF]
Sci RepAlQadi H +5 more
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