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Exponentially weighted moving average control schemes with variable sampling intervals |
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| Authors: | Michael S. Saccucci Raid W. Amin James M. Lucas |
| Affiliation: | 1. BBN Software Products , 150 Cambridgepark Drive, Cambridge, MA, 02140;2. Department of Mathematics and Statistics , University of West Florida , Pensacola, FL, 32514-5751;3. E. I. du pont de Nemouus and Company Quality Management &4. Technology Center , Linden Park, P.O. Box 6091, Newark, DE, 19714-6091 |
| Abstract: | The idea of using non-constant sampling intervals has been of interest in quality control applications since it was first suggested for the “skip-lot sampling plan” of Dodge. Recent interest has focused on the use of variable sampling interval (VSI) control schemes. VSI control schemes use a short sampling interval is given |
| Keywords: | average run length average time to signal statistical process control CUSUM EWMA Shewhart variable sampling interval |