Enhanced performance of mixed HWMA-CUSUM charts using auxiliary information.
PLoS ONE, 2023 Quality control (QC) is a systematic approach to ensuring that products and services meet customer requirements. It is an essential part of manufacturing and industry, as it helps to improve product quality, customer satisfaction, and profitability ...
Faiza Zubair +2 more
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Impact of Measurement Error on Mixed EWMA-CUSUM Control Chart [PDF]
Scientia Iranica, 2020 In statistical process control, measurement error plays an important role which is usually ignored. Measurement error can lead to incorrect conclusions about the performance of the process. In this paper, we examined the effect of measurement error on the shift detection ability of the mixed exponentially weighted moving average-cummulative sum (EWMA ...
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Design of a New Tukey MA-DEWMA Control Chart to Monitor Process and its Applications
IEEE Access, 2021 Control chart is a useful statistical tool for the production process control to maintain the product value at the standard. The objectives of this research were to propose the Tukey Moving Average - Double Exponentially Weighted Moving Average control ...
Rattikarn Taboran +2 more
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The performance of the truncated mixed control chart
Communications in Statistics - Theory and Methods, 2018 When the mixed chart proposed by Aslam et al. (2015) is in use, the sample items are classified as defective or not defective and, depending on the number of defectives, the quality characteristic ...
Roberto Campos Leoni +1 more
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Robust kernel distance multivariate control chart using support vector principles [PDF]
, 2008 It is important to monitor manufacturing processes in order to improve product quality and reduce production cost. Statistical Process Control (SPC) is the most commonly used method for process monitoring, in particular making distinctions between ...
Chinnam, R. B. +5 more
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A Bayesian Control Chart for Monitoring Process Variance
Applied Sciences, 2021 Automation in the service industry is emerging as a new wave of industrial revolution. Standardization and consistency of service quality is an important part of the automation process.
Chien-Hua Lin +3 more
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TheT2chart with mixed samples to control bivariate autocorrelated processes [PDF]
International Journal of Production Research, 2015 In this paper, we propose the use of the T2 chart with the mixed sampling strategy (MS) to monitor the mean vector of bivariate processes with observations that fit to a first-order vector autoregressive model. With the MS, rational subgroups of size n are taken from the process and the selected units are regrouped to form the mixed samples.
Leoni, Roberto Campos +2 more
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Optimal inspection policy for three-state systems monitored by control charts [PDF]
, 2011 This paper presents the formulations of the expected long-run cost per time unit for a system monitored by a static control chart and by an adaptive control chart respectively.
Wenbin Wang +3 more
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An EWMA-DiD Control Chart to Capture Small Shifts in the Process Average Using Auxiliary Information
Technologies, 2018 Among the Statistical Process Control (SPC) techniques, control charts are considered to be high weight-age due to their effectiveness in process variation.
Muhammad Anwar Mughal +2 more
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Control Chart T2Qv for Statistical Control of Multivariate Processes with Qualitative Variables
Mathematics, 2023 The scientific literature is abundant regarding control charts in multivariate environments for numerical and mixed data; however, there are few publications for qualitative data. Qualitative variables provide valuable information on processes in various
Wilson Rojas-Preciado +3 more
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