Performance of new nonparametric Tukey modified exponentially weighted moving average—Moving average control chart [PDF]
PLoS ONE, 2022 Control charts are an amazing and essential statistical process control (SPC) instrument that is commonly used in monitoring systems to detect a specific defect in the procedure.
Khanittha Talordphop +2 more
doaj +5 more sources
Exponentially weighted moving average-Moving average charts for monitoring the process mean. [PDF]
PLoS ONE, 2020 This research aimed to propose a newly-mixed control chart called the Exponentially Weighted Moving Average-Moving Average Chart (EWMA-MA) to detect the mean change in a process underlying symmetric and asymmetric distributions.
Saowanit Sukparungsee +2 more
doaj +4 more sources
Nonparametric mixed exponentially weighted moving average-moving average control chart [PDF]
Scientific ReportsThis research designed a distribution-free mixed exponentially weighted moving average-moving average (EWMA-MA) control chart based on signed-rank statistic to effectively identify changes in the process location.
Muhammad Ali Raza +5 more
doaj +4 more sources
Triple exponentially weighted moving average control chart with measurement error [PDF]
Scientific Reports, 2023 Measurement error (M.E) can have a substantial impact on quality control applications, diminishing the sensitivity to detect changes in the mean or variance of quality characteristics.
Jing Wang +4 more
doaj +4 more sources
Results in Engineering, 2023 Control charts are an extremely valuable tool in statistical process control (SPC) for processing information from a system or procedure over time and displaying statistically significant changes in data while also showing how a system or process is ...
Khanittha Talordphop +2 more
doaj +2 more sources
A nonparametric mixed exponentially weighted moving average-moving average control chart with an application to gas turbines. [PDF]
PLoS ONEThis study aims to develop a nonparametric mixed exponentially weighted moving average-moving average (NPEWMA-MA) sign control chart for monitoring shifts in process location, particularly when the distribution of a critical quality characteristic is ...
Muhammad Ali Raza +5 more
doaj +2 more sources
New extended exponentially weighted moving average control chart for monitoring process mean [PDF]
HeliyonIn this article, we develop a new control chart based on the Exponentially Weighted Moving Average (EWMA) statistic, termed the New Extended Exponentially Weighted Moving Average (NEEWMA) statistic, designed to recognize slight changes in the process ...
Hina Javed, Muhammad Ismail, Nadia Saeed
doaj +2 more sources
Connection Science, 2022 The mixed control chart is proposed to improve detection performance with fewer process shifts. In this study, we proposed the modified exponentially weighted moving average - moving average control chart (MMEM), a new mixed control chart for observing ...
Khanittha Talordphop +2 more
doaj +2 more sources
Detecting the start of an influenza outbreak using exponentially weighted moving average charts [PDF]
BMC Medical Informatics and Decision Making, 2010 Background Influenza viruses cause seasonal outbreaks in temperate climates, usually during winter and early spring, and are endemic in tropical climates. The severity and length of influenza outbreaks vary from year to year. Quick and reliable detection
Coory Michael +3 more
doaj +2 more sources
Comparison of EWMA, MA, and MQ Under a Unified PBRTQC Framework for Thyroid and Coagulation Tests [PDF]
DiagnosticsBackground: Patient-based real-time quality control (PBRTQC) enables continuous analytical monitoring using routine patient results; however, the performance of classical statistical process control (SPC) algorithms varies across analytes, and ...
Banjiu Zhaxi +6 more
doaj +2 more sources