Results 31 to 40 of about 8,621 (280)
Axioms, 2023 In industrial production, the exponentially weighted moving average scheme is widely used to monitor shifts in product quality, especially small-to-moderate shifts.
Dan Yu +5 more
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Evaluations of some Exponentially Weighted Moving Average methods [PDF]
Journal of Applied Statistics, 2003 The need for statistical surveillance has been noted in many different areas, and examples of applications include the detection of an increased incidence of a disease, the detection of an increased radiation level and the detection of a turning point in a leading index for a business cycle. In all cases, preventive actions are possible if the alarm is
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แผนภูมิควบคมุค่าเฉลี่ยเคลื่อนที่ถ่วงน้ำหนักแบบเลขชี้กำลัง-ทูกีสำหรับพิสัยเคลื่อนที่และพิสัยExponentially Weighted Moving Average – Tukey’s Control Charts for Moving Range and Range [PDF]
, 2017 งานวิจัยนี้มีวัตถุประสงค์เพื่อเสนอแผนภูมิควบคุมค่าเฉลี่ยเคลื่อนที่ถ่วงน้ำหนักแบบเลขชี้กำลัง-ทูกีสำหรับพิสัยเคลื่อนที่และพิสัย เพื่อตรวจจับการเปลี่ยนแปลงของความผันแปรของกระบวนการที่มีการแจกแจงสมมาตรและไม่สมมาตร และเปรียบเทียบประสิทธิภาพในการตรวจจับการเปลี่
Mongkoltawat, Phunsa; Department of Applied Statistics, Faculty of Applied Science, King Mongkut's University of Technology North Bangkok, Bangkok, Thailand +2 more
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Score Driven Exponentially Weighted Moving Average and Value-at-Risk Forecasting [PDF]
SSRN Electronic Journal, 2014 We present a simple methodology for modeling the time variation in volatilities and other higher-order moments using a recursive updating scheme that is similar to the familiar RiskMetrics approach. The parameters are updated using the score of the forecasting distribution, which allows the parameter dynamics to adapt automatically to any non-normal ...
Lucas, André, Zhang, Xin
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Interval Type-2 fuzzy Exponentially Weighted Moving Average Control Chart [PDF]
, 2022 Some industrial data often come with uncertainty, which in some cases depends on the decision of those responsible for taking the measurement in the production process. While the fuzzy approach helps to tackle the ambiguity that arises in the measurement,
Adepoju, Akeem Ajibola +3 more
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Modern multivariate control chart using spatial signed rank for non-normal process
Engineering Science and Technology, an International Journal, 2020 Modern multivariate control charts that use spatial signed rank are sensitive to the detection of small shifts under non-normal or gamma distributions.
Thidathip Haanchumpol +2 more
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IEEE Access, 2022 Many studies have shown that industrial as well as non-industrial business organisations present a growing need of robust and more efficient multivariate monitoring schemes in order to be able to monitor several quality characteristics simultaneous.
Jean-Claude Malela-Majika +2 more
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Mathematics, 2022 In addition to monitoring the Poisson mean rate with step shifts, increasing attention has been given to monitoring Poisson processes subject to linear trends.
Honghao Zhao +3 more
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Taiwanese 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
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Analysis of Moving Average, Weight Moving Average, Exponential Smoothing in predicting shoe prices
Jurnal Teknologi Informasi dan Pendidikan, 2022 Research related to forecasting is growing, starting with simple forecasting based on time or forecasting with certain criteria. Forecasting methods continue to be developed because they produce good models and can predict with high accuracy. The simplest method of forecasting is from the statistical value of the data, namely the average value or what ...
Nur Nafi'iyah +2 more
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