Results 21 to 30 of about 3,958 (193)
Statistica, 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
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A Double Sampling Scheme for Process Mean Monitoring
IEEE Access, 2017 Mean control charts are effective tools for detecting mean shifts of an interesting quality variable in both manufacturing processes and service processes.
Su-Fen Yang, Sin-Hong Wu
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Design of an Exponentially Weighted Moving Average (EWMA) and An Exponentially Weighted Root Mean Square (EWRMS) Control Chart [PDF]
, 2017 Some of the most widely-used form of control charts Walter Shewhart charts are sensitive to detecting relatively large shifts in the process. On Shewhart charts every observation is plotted independently of previous observations.The quantity plotted on ...
Rashid, A. P. (Asst)
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A Robust Exponentially Weighted Moving Average Control Chart for the Process Mean [PDF]
, 2005 To date, numerous extensions of the exponentially weighted moving average, EWMA charts have been made. A new robust EWMA chart for the process mean is proposed.
Khoo, Michael B. C., Sim, S. Y.
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IEEE 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
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Scientific Reports, 2023 The adoption of strategies for monitoring water consumption is essential for water resources management, contributing to the promotion of the sustainability in the water sector.
Allyson Belli Bogo +2 more
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Application of EWMA chart for monitoring process mean in paper industry [PDF]
Management Science Letters, 2019 This paper presents a statistical process control (SPC) chart for variables in a new feature for the paper machine in the paper industry. The traditional control charts like X-bar and R charts may be inadequate sometimes when the process exhibits ...
S. Ramesh, B.A. Vasu
doaj +1 more source
Robustness of DEWMA versus EWMA Control Charts to Non-Normal Processes [PDF]
, 2013 Exponentially weighted moving average (EWMA) and double EWMA (DEWMA) control charts were designed under the normality assumption. This study considers various skewed (Gamma) and symmetric non-normal (t) distributions to examine the effect of non ...
Alkahtani, Saad Saeed
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Adaptive EWMA Control Charts with a Time Varying Smoothing Parameter [PDF]
, 2015 It is known that time-weighted charts like EWMA or CUSUM are designed to be optimal to detect a specific shift. If they are designed to detect, for instance, a very small shift, they can be inefficient to detect moderate or large shifts.
Sánchez, Ismael +1 more
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Acceptance sampling plan for multiple manufacturing lines using EWMA process capability index [PDF]
, 2017 The problem of developing a product acceptance determination procedure for multiple characteristics has attracted the quality assurance practitioners. Due to sufficient demands of consumers, it may not be possible to deliver the quantity ordered on time ...
Arif, O.H., Aslam, M., Jun, C.-H.
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