Results 11 to 20 of about 3,947 (212)

A Simple Approach for Monitoring Business Service Time Variation [PDF]

open access: yesThe Scientific World Journal, 2014
Control charts are effective tools for signal detection in both manufacturing processes and service processes. Much of the data in service industries comes from processes having nonnormal or unknown distributions.
Su-Fen Yang, Barry C. Arnold
doaj   +4 more sources

Monitoring Non-Parametric Profiles using Adaptive EWMA Control Chart [PDF]

open access: yesScientific Reports, 2022
Abstract To monitor the quality of a process in statistical process control (SPC), considering a functional relationship between a dependent variable and one or more independent variables which is denoted as profile monitoring is becoming an increasingly common approach.
Abbasi, Saddam Akber   +2 more
openaire   +5 more sources

Nonparametric EWMA-Type Control Charts for Monitoring Industrial Processes: An Overview [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2021
In the present paper we provide an up-to-date overview of nonparametric Exponentially Weighted Moving Average (EWMA) control charts. Due to their nonparametric nature, such memory-type schemes are proved to be very useful for monitoring industrial ...
Ioannis S. Triantafyllou, Mangey Ram
doaj   +1 more source

Improved adaptive EWMA control chart for process location with applications in groundwater physicochemical parameters and glass manufacturing industry

open access: yesPLoS ONE, 2022
The adaptive exponentially weighted moving average (AEWMA) control charts are the advanced form of classical memory control charts used for efficiently monitoring small-to-large shifts in the process parameters (location and/or dispersion).
Muhammad Arslan   +5 more
doaj   +2 more sources

The development of egg hatching and storage machines equipped with cooling and heating systems and iot [PDF]

open access: yes, 2021
The development of egg hatching and storage machines equipped with cooling and heating systems and IoT was for helping chicken breeders to address the issue of chicken production shortages. To produce large numbers of poultry production, eggs hatching is
Abdulrahman, Khairul Anuar   +6 more
core   +1 more source

Explicit analytical solutions for the average run length of modified EWMA control chart for ARX(p,r) processes [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2021
Statistical process control (SPC) plays a necessary role in manufacturing industry processes. An essential tool for SPC used for monitoring, measuring, controlling, and improving quality in various fields is the control chart.
Korakoch Silpakob   +3 more
doaj   +1 more source

Design of EWMA-type control chart

open access: yesIOP Conference Series: Materials Science and Engineering, 2021
Abstract A control chart is typically examined based on the overall performance. This is crucial, as it will influence the final decision on the selection of a control chart. For this reason, the application of average run length (ARL) has been identified as the standard performance metric.
H W You, M A Shahrin, Z Mustafa
openaire   +1 more source

Real-time quality control of nuchal translucency measurements using the exponentially weighted moving average chart

open access: yesTaiwanese Journal of Obstetrics & Gynecology, 2021
Objective: The establishment of ongoing audits for first-trimester nuchal translucency (NT) measurements is of paramount importance. The exponentially weighted moving average (EWMA) chart has been published as an efficient tool for NT quality control ...
Martin Hynek   +4 more
doaj   +1 more source

Exponentially weighted moving average-Moving average charts for monitoring the process mean.

open access: yesPLoS 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   +1 more source

Exponentially Weighted Moving Average Control Schemes for Assessing Hospital Organizational Performance

open access: yesStatistica, 2016
Exponentially weighted moving average (EWMA) control charts have been successfully used in recent years in several areas of healthcare. Most of these applications have concentrated on the problem of detecting shifts in the mean level of a process.
Michele Scagliarini   +4 more
doaj   +1 more source

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