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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 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
doaj +1 more source
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
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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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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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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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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
core +4 more sources
Journal of Probability and Statistics, 2018 This study proposes EWMA-type control charts by considering some auxiliary information. The ratio estimation technique for the mean with ranked set sampling design is used in designing the control structure of the proposed charts.
Hina Khan +3 more
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Control charts for monitoring drip irrigation with different hydraulic heads
Revista Ambiente & Água, 2020 This study monitored a drip irrigation system with different hydraulic heads, using control charts. The study included 25 tests, and was conducted at the Experimental Nucleus of Agricultural Engineering of the State University of Western Paraná, located ...
Allan Remor Lopes +4 more
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