Results 11 to 20 of about 4,359,077 (237)
Mixed Tukey Exponentially Weighted Moving Average-Modified Exponentially Weighted Moving Average Control Chart for Process Monitoring [PDF]
Emerging Science Journal, 2023 The goal of this study is to present the mixed Tukey exponentially weighted moving average-modified exponentially weighted moving average control chart (MEME-TCC) for monitoring process location with symmetric and skewed distributions in an attempt to significantly improve detection ability. With the benefits of nonparametric assumption robustness. The
Khanittha Talordphop +2 more
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Triple exponentially weighted moving average control chart with measurement error
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
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Applied Sciences, 2020 Recently, a number of data analysists have suffered from an insufficiency of historical observations in many real situations. To address the insufficiency of historical observations, self-starting forecasting process can be used.
Jaehong Yu +3 more
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A New X-Bar Control Chart for Using Neutrosophic Exponentially Weighted Moving Average
Mathematics, 2019 The existing Shewhart X-bar control charts using the exponentially weighted moving average statistic are designed under the assumption that all observations are precise, determined, and known.
Muhammad Aslam +2 more
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Advances in Mechanical Engineering, 2018 In this article, building a controlled system with velocity feedback in the inner loop for a platform driven by piezoelectric motors is investigated. Such a motion control system is subject to disturbance such as friction, preload, and temperature rise ...
Yung Ting, Tho Van Nguyen, Jia-Ci Chen
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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
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New extended exponentially weighted moving average control chart for monitoring process mean
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
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Hybrid exponentially weighted moving average control chart for mean by using different ranked set sampling schemes [PDF]
Kuwait Journal of Science, 2020 In this paper different schemes of ranked set sampling (RSS) are used to design a new hybrid exponentially weighted moving average (HEWMA) control chart having more sensitivity to small and moderate shifts.The suggested control chart dominates ...
Muhammad Noor ul amin +3 more
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Using the moving average and exponentially weighted moving average with COVID 19
Periodicals of Engineering and Natural Sciences (PEN), 2021 The study was concerned with clarifying the work of the quality control charts and their application in the health field, where the quality control charts for the moving average and the Exponential Weighted moving average were used to clarify the number of people infected with the Corona virus (COVID 19) for the month of April of the year 2020 and ...
Narjis Hadi Irhaif +3 more
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OPTIMAL HEDGE RATIO OF SUKUK AND ISLAMIC EQUITY: A NOVEL APPROACH
Journal of Islamic Monetary Economics and Finance, 2023 This research applies a novel model to compute a hedge ratio. Specifically, the model modifies volatility forecasts of an exponentially weighted moving average method to account for the fat-tailed distribution of returns.
Bayu Adi Nugroho +1 more
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