Results 71 to 80 of about 3,384 (212)

Optimal Design of One-Sided Exponential EWMA Charts With Estimated Parameters Based on the Median Run Length

open access: yesIEEE Access, 2019
One-sided exponential exponentially weighted moving average (EWMA) charts are useful tools for monitoring high-quality processes. Average run length ($ARL$ ) is usually used as the only criterion to evaluate the performance of a control chart.
Yulong Qiao   +3 more
doaj   +1 more source

Double EWMA‐Based Polynomial Quality Profiles Monitoring

open access: yesQuality and Reliability Engineering International, 2016
Profile monitoring is useful whenever the quality is described by a relationship between a response and one or more of explanatory variables. It is conventional to refer to this relationship as Quality Profile. Despite the fact that there are numerous examples of the polynomial quality profiles in industrial practice, only few Phase II techniques are ...
Abdella, Galal M.   +3 more
openaire   +2 more sources

PETA KENDALI EWMA RESIDUAL PADA DATA BERAUTOKORELASI

open access: yesE-Jurnal Matematika, 2019
Control charts with  autocorrelation can be overcome by creating control chart with residuals from the best forecasting model. EWMA control chart is a alternative to the Shewhart control chart when detecting small shifts.
NI KADEK YUNI DEWIANTARI   +2 more
doaj   +1 more source

An improved adaptive EWMA control chart for monitoring time between events with application in health sector [PDF]

open access: bronze, 2023
Muhammad Aslam   +4 more
openalex   +1 more source

A generalized EWMA control chart and its comparison with the optimal EWMA, CUSUM and GLR schemes

open access: yesThe Annals of Statistics, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Han, Dong, Tsung, Fu-gee
openaire   +3 more sources

New Memory Type Estimators for Systematic Sampling

open access: yesJournal of Advanced Research in Natural and Applied Sciences
This study aims to enhance estimation accuracy in systematic sampling by proposing a set of novel Exponentially Weighted Moving Average (EWMA)-based memory-type estimators.
Eda Gizem Koçyiğit
doaj   +1 more source

Performance of Bayesian EWMA control chart with measurement error under ranked set sampling schemes with application in industrial engineering [PDF]

open access: gold, 2023
Yuzhen Wang   +5 more
openalex   +1 more source

An adaptive multivariate functional EWMA control chart

open access: yesJournal of Quality Technology
In many modern industrial scenarios, the measurements of the quality characteristics of interest are often required to be represented as functional data or profiles. This motivates the growing interest in extending traditional univariate statistical process monitoring (SPM) schemes to the functional data setting. This article proposes a new SPM scheme,
Capezza, Christian   +4 more
openaire   +3 more sources

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