Title | ||
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Monitoring the Coefficient of Variation Using a Variable Sampling Interval Control Chart. |
Abstract | ||
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The coefficient of variation (CV) is a quality characteristic that has several applications in applied statistics and is receiving increasing attention in quality control. Few papers have proposed control charts that monitor this normalized measure of dispersion. In this paper, an adaptive Shewhart control chart implementing a variable sampling interval (VSI) strategy is proposed to monitor the CV. Tables are provided for the statistical properties of the VSI CV chart, and a comparison is performed with a Fixed Sampling Rate Shewhart chart for the CV. An example illustrates the use of these charts on real data gathered from a casting process. Copyright (c) 2012 John Wiley & Sons, Ltd. |
Year | DOI | Venue |
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2013 | 10.1002/qre.1465 | QUALITY AND RELIABILITY ENGINEERING INTERNATIONAL |
Keywords | Field | DocType |
coefficient of variation,variable sampling interval,average time to signal | Econometrics,Coefficient of variation,Computer science,Sampling (signal processing),X-bar chart,u-chart,ar x and R chart,Control chart,Chart,Statistics,ar x and s chart | Journal |
Volume | Issue | ISSN |
29 | 8 | 0748-8017 |
Citations | PageRank | References |
4 | 0.59 | 1 |
Authors | ||
5 |
Name | Order | Citations | PageRank |
---|---|---|---|
Philippe Castagliola | 1 | 529 | 61.65 |
Ali Achouri | 2 | 4 | 0.59 |
Hassen Taleb | 3 | 29 | 3.74 |
Giovanni Celano | 4 | 92 | 12.38 |
Stelios Psarakis | 5 | 180 | 18.46 |