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政大典藏 > College of Commerce > Department of Statistics > Periodical Articles > Item 140.119/74758

Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/74758

Title:	A new EWMA loss control chart with adaptive control scheme
Authors:	楊素芬 Yang, C.;Yang, Su-Fen
Contributors:	統計系
Date:	2014
Issue Date:	2015-04-23 13:57:14 (UTC+8)
Abstract:	A single chart, instead of and R charts or and S charts, to simultaneously monitor the process mean and variability would reduce the required time and effort. A number of studies have attempted to find such charts. Moreover, a number of studies demonstrated that the adaptive control charts may detect process shifts faster than the fixed control charts. This paper proposes the EWMA loss chart with variable sample sizes and sampling intervals (VSSI) to effectively monitor the difference of process measurements and target. An example is used to illustrate the application and performance of the proposed control chart in detecting the changes in the difference of the process measurements and target. Numerical analyses demonstrated that the VSSI EWMA loss chart outperforms the fixed sampling interval EWMA average loss chart and the Shewhart joint and S charts. Therefore, the VSSI EWMA loss chart is recommended.
Relation:	Applied Mechanics and Materials, Vol.631-632, pp.12-17
Data Type:	article
DOI link:	http://dx.doi.org/10.4028/www.scientific.net/AMM.631-632.12
DOI:	10.4028/www.scientific.net/AMM.631-632.12
Appears in Collections:	[Department of Statistics] Periodical Articles

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