Search Results - subject:"Control Chart"

A bootstrap view on dickey-fuller control charts for AR(1) series

Steland, Ansgar - 2006

alternatives. Simulations indicate that the bootstrap control chart works very well. …

Persistent link: https://www.econbiz.de/10010296705

A bootstrap view on dickey-fuller control charts for AR(1) series

Steland, Ansgar - Institut für Wirtschafts- und Sozialstatistik, … - 2006

alternatives. Simulations indicate that the bootstrap control chart works very well. …

Persistent link: https://www.econbiz.de/10009216888

Control Charts for Doubly Truncated Binomial Distributions

Chakraborty, Ashit B.; Khurshid, Anwer - In: Stochastics and Quality Control 27 (2013) 2, pp. 187-194

Abstract. One-sided cumulative sum control charts are constructed for controlling the parameters of a random variable with doubly truncated binomial distribution. It is observed that the average run length (ARL) of the resulting control charts change considerably for a slight shift in the...

Persistent link: https://www.econbiz.de/10014590943

AFT regression-adjusted monitoring of reliability data in cascade processes

Asadzadeh, Shervin; Aghaie, Abdollah; Niaki, Seyed - In: Quality & Quantity: International Journal of Methodology 47 (2013) 6, pp. 3349-3362

Today’s competitive market has witnessed a growing interest in improving the reliability of products in both service and industrial operations. A large number of monitoring schemes have been introduced to effectively control the reliability-related quality characteristics. These methods have...

Persistent link: https://www.econbiz.de/10010843953

The effect of the individual chart with variable control limits on the river pollution monitoring

Lee, Pei-Hsi; Huang, Yi-Hsien; Kuo, Tsen-I; Wang, … - In: Quality & Quantity: International Journal of Methodology 47 (2013) 4, pp. 1803-1812

. Furthermore, control chart technology can monitor the river pollution and signal the aggravation of water quality. This study … proposes an individual control chart with variable control limits (VCL individual chart) and verifies this chart can quickly …

Persistent link: https://www.econbiz.de/10010993106

Economic and economic-statistical designs of an X¯ control chart for two-unit series systems with condition-based maintenance

Liu, Liping; Yu, Miaomiao; Ma, Yizhong; Tu, Yiliu - In: European Journal of Operational Research 226 (2013) 3, pp. 491-499

The economic and economic-statistical designs of an X¯ control chart for two-identical unit series systems with …. We assume that the system is monitored by an X¯ control chart to avoid costly failures. When the control chart gives an … control chart parameters for minimizing the average maintenance costs. A numerical example is presented to compare the two …

Persistent link: https://www.econbiz.de/10011052468

Reducing sampling costs in multivariate SPC with a double-dimension T2 control chart

Epprecht, Eugenio K.; Aparisi, Francisco; Ruiz, Omar; … - In: International Journal of Production Economics 144 (2013) 1, pp. 90-104

. However, this set of p2 variables is important to quickly detect the process shifts. This paper develops a control chart based … obtain a new T2 statistic. This new chart is the double dimension T2 (DDT2) control chart. The ARL of the DDT2 chart is … application of this new control chart. …

Persistent link: https://www.econbiz.de/10011043296

Measurement Error Effect on the Power of Control Chart for the Ratio of Two Poisson Distributions

Chakraborty Ashit B.; Anwer, Khurshid - In: Economic Quality Control 28 (2013) 1, pp. 15-21

distributions as studied by Sahai and Khurshid [20]. Expression of the power of the control chart under the standardized normal …

Persistent link: https://www.econbiz.de/10011015846

Robust quality controlling: SPC with box plots and runs test

Besseris, George J. - In: The TQM Journal 25 (2013) 1, pp. 89-102

Purpose – The purpose of this paper is to propose a methodology that may assist quality professionals in assessing process variation with a combination of tools based on simple robust statistics. The technique targets alternative way of screening and detection of common and special causes in...

Persistent link: https://www.econbiz.de/10015032018

Minimal Euclidean distance chart based on support vector regression for monitoring mean shifts of auto-correlated processes

Du, Shichang; Lv, Jun - In: International Journal of Production Economics 141 (2013) 1, pp. 377-387

of the proposed MED control chart is evaluated based on average run length (ARL). Simulation experiments are conducted … and one industrial case is illustrated to validate the effectiveness of the developed MED control chart. The analysis … results indicate that the developed MED control chart is more effective than other control charts for small process mean …

Persistent link: https://www.econbiz.de/10010594389