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Residual Responses to Change Patterns of Autocorrelated Processes

Ghourabi, Mohamed El; Limam, Mohamed - In: Journal of Applied Statistics 34 (2007) 7, pp. 785-798

This article studies the residual behaviour of various stationary processes in the presence of change patterns. Three types of change patterns are considered, Additive Outliers, Innovative Outliers and Level Shift. The knowledge of the residual behaviour is important for monitoring production...

Persistent link: https://www.econbiz.de/10005492150

Development of statistical methods for the surveillance and monitoring of adverse events which adjust for differing patient and surgical risks

Webster, Ronald A. - 2008

well calibrated. Uncertainty in the calibration of the risk model appeared to cause considerable variation in the ARL …

Persistent link: https://www.econbiz.de/10009437853

A process control method based on five-parameter generalized lambda distribution

Ahmadabadi, Majid; Farjami, Yaghub; Moghadam, Mohammad … - In: Quality & Quantity: International Journal of Methodology 46 (2012) 4, pp. 1097-1111

Persistent link: https://www.econbiz.de/10010843855

Sensitivity comparison of control charts under MAD shift detector using the rank set sampling scheme

Saeed, Nadia; Abu-Shawiesh, Moustafa Omar Ahmed - In: European journal of industrial engineering : EJIE 19 (2025) 1, pp. 68-85

Persistent link: https://www.econbiz.de/10015332475

EWMA p charts for detecting changes in mean or scale of normal variates

Knoth, Sven; Steinmetz, Sebastian - 2015

length (ARL) as the measure of performance. …

Persistent link: https://www.econbiz.de/10010512999

On median control charting under double sampling scheme

Ahmad, Shabbir; Riaz, Muhammad; Abbasi, Saddam Akber; … - In: European Journal of Industrial Engineering 8 (2014) 4, pp. 478-512

evaluated in terms of run length (RL) characteristics such as: average run length (ARL), median run length (MDRL), standard … deviation of the run length distribution (SDRL), extra quadratic loss (EQL) and relative ARL (RARL). Moreover, the effects of … Step 1 sample size and contaminated environments are examined on the ARL performance of different median-based charting …

Persistent link: https://www.econbiz.de/10010944889

Analysis of available software products in the North American cabinet industry

Hewitt, Richard; Sowlati, Taraneh; Paradi, Joseph C. - In: International Journal of Applied Management Science 5 (2013) 3, pp. 281-296

The effective use of information technology (IT) is increasingly important to remain competitive in modern manufacturing. In general, wood products industries are slower in adopting IT, which may erode their long-term competitiveness. Using cluster analysis, this study evaluates the...

Persistent link: https://www.econbiz.de/10010682869

Mixture cumulative count control chart for mixture geometric process characteristics

Majeed, Muhammad; Aslam, Muhammad; Riaz, Muhammad - In: Quality & Quantity: International Journal of Methodology 47 (2013) 4, pp. 2289-2307

A statistical process control chart named the mixture cumulative count control chart (MCCC-chart) is suggested in this study, motivated by an existing control chart named cumulative count control chart (CCC-chart). The MCCC-chart is constructed based on the distribution function of a two...

Persistent link: https://www.econbiz.de/10010634207

Effect of Estimation on the Univariate Control Charts for Process Dispersion

Maravelakis, Petros; Panaretos, John; Psarakis, Stelios - Volkswirtschaftliche Fakultät, … - 2001

Control charts are extensively used in many real world applications. Since process parameters are rarely known common practice is to estimate them. Then, the control limits are modified and become actually random variables. In this paper, we deal with the univariate control charts for dispersion...

Persistent link: https://www.econbiz.de/10005260044

An alternative approach to multivariate EWMA control chart

Pan, Xia - In: Journal of Applied Statistics 32 (2005) 7, pp. 695-705

This Paper proposes a multivariate EWMA scheme that is alternative to the traditional EWMA-M. The distribution of the chart statistic is derived from Box quadratic form and the sensitivity of the chart is examined. The average run lengths of the M-EWMA scheme are numerically computed with the...

Persistent link: https://www.econbiz.de/10005278983