Exponentially Weighted Moving Average (EWMA)
Exponentially Weighted Moving Average Control Schemes for Assessing Hospital Organizational Performance
... Summary Exponentially weighted moving average (EWMA) control charts have been suc- cessfully used in recent years in several areas of ...
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Enhanced Monitoring Using Multiscale Exponentially Weighted Moving Average Control Charts
... The exponentially weighted moving average (EWMA) method is a widely used univariate process monitoring ...control average run length (ARL 1 ) specific to a fixed in control ...
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Design of Exponentially Weighted Moving Average Chart for Monitoring Standardized Process Variance
... 2 Faculty of Engineering, University of Moratuwa, Sri Lanka. Abstract — Control charts for monitoring of process variance are developed based on Shewhart, exponentially weighted moving average ...
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A Study on Exponentially Weighted Moving Average Control Chart with Parametric and Nonparametric Approach
... The Exponentially Weighted Moving Average (EWMA) control charts and other sequential approaches, like Cumulative Sum (CUSUM) charts, are an alternative to Shewhart control charts and are ...
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The Assessment and Comparison of Performance Analysis Using Exponentially Weighted Moving Average and Cumulative Sum Scheme.
... Keywords: Cumulative Sum Scheme (CSS), Exponentially Weighted Moving Average (EWMA), Non-parametric and Bootstrap methods, Road Traffic. 1.0 INTRODUCTION Quality control is the use of ...
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Design of IoT-Based Manufacturing Quality Control Systems with Exponentially Weighted Moving Average Chart
... * Corresponding author e-mail: [email protected] Abstract Quality control is needed for each manufacturing industry, so that product quality remains stable. Product variation is one of the factors that can ...
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Affine invariant signed-rank multivariate exponentially weighted moving average control chart for process location monitoring
... multivariate exponentially weighted moving average type (SRMEWMA) control chart for monitoring location ...the weighted version of this test was used to formulate the charting statistic ...
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An Explicit Expression of Average Run Length of Exponentially Weighted Moving Average Control Chart with ARIMA (p,d,q)(P, D, Q)L Models
... Keywords: exponentially weighted moving average control chart (EWMA); autoregressive integrated moving average (ARIMA); average run length (ARL) ...Shewhart, ...
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Pengukuran Value at Risk Menggunakan Prosedur Volatility Updating Hull and White Berdasarkan Exponentially Weighted Moving Average (Ewma) (Studi Kasus Pada Portofolio Dua Saham)
... Staf Pengajar Jurusan Statistika FSM UNDIP ABSTRACT Investment is an effort to get profits for individual or institution. But the investment policy is always faced with market risk as the effect of financial instruments ...
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Effect of Sample Size on the Control Limits of Exponentially Weighted Moving Average Distance Square Scheme
... of Exponentially Weighted Moving Average Distance Square ...of Exponentially Weighted Moving Average Distance Square ...
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The Moments of the Optimal Average Run Length of the Multivariate Exponentially Weighted Moving Average Control Chart For Equally Correlated Variables
... Multivariate Exponentially Weighted Moving Average (MEWMA) control chart is one of the control statistics used to overcome the drawback of the Hotelling’s T ...
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Robust economic-statistical design of multivariate exponentially weighted moving average control chart under uncertainty with intervaldata
... Multivariate Exponentially Weighted Moving Average (MEWMA) control chart and consider interval uncertainty in the cost parameters of the MEWMA control chart and develop a robust ...
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Study About the Minimum Value at Risk of Stock Index Futures Hedging Applying Exponentially Weighted Moving Average - Generalized Autoregressive Conditional Heteroskedasticity Model
... model- exponentially weighted moving average-generalized autoregressive conditional heteroskedasticity (GARCH) (1,1)-M applicable to the real financial markets based on previous ...
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Exponentially weighted moving average control charts for three-level products
... Keywords Average run length · EWMA control chart · Markov Chain · Quality value function · Shewhart control chart 1 Introduction When consumers select competing products and services, quality has become one of the ...
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The impact of Weibull data and autocorrelation on the performance of the Shewhart and exponentially weighted moving average control charts Pages 575-582 Download PDF
... Wieringa (1999) examined the case where autocorrelation is either ignored or unknown. The AR (1) model was used to generate the observations. The Shewhart control chart was first constructed with autocorrelation present. ...
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A Multivariate Exponentially Weighted Moving Average Control Chart
... The use of the Hotelling’s x2 limit does not, however, completely solve the inertia problem because, if inertia has built up, then a sequence of relatively large shifts fro[r] ...
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Enhanced exponentially weighted moving average (EWMA) control chart performance with autocorrelation
... Shao, Y. E. and Y. Lin (2013). Applying Residual Control Charts to Identify the False Alarms in a TFT-LCD Manufacturing Process. Appl. Math. Inf. Sci. 7(4): 1459-1464. Sheu, S.-H., C.-J. Huang and T.-S. Hsu (2012). ...
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Detecting the start of an influenza outbreak using exponentially weighted moving average charts
... creteness problem in selecting thresholds for the moving average and Shewhart approaches would be lessened. Conclusions We propose a simple, robust method for detecting the start and end of the influenza ...
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Design & Development of Statistical Method - Exponentially Weighted Moving Average (EWMA) to Calculate Historical Averages for Factual Strategies and Learning Systems
... Albeit some fundamental components, for example, IP bundle rate and IP parcel length appear to be great competitors at IP-level, our expanded tests demonstrated that they are touchy to retransmission of TCP lost or ...
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Maximum Multivariate Exponentially Weighted Moving Average and Maximum Multivariate Cumulative Sum Control Charts for Simultaneous Monitoring of Mean and Variability of Multivariate Multiple Linear Regression Profiles
... According to the literature, in most of the control charts proposed for monitoring of multivariate multiple linear regression proles, mean vector and covariance matrix are monitored with separate control charts. In ...
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