单词 | cusum chart |
释义 | > as lemmascusum chart 1. A statistical procedure for identifying changes in the probability distribution of a given process by considering cumulative sums associated with that process; a cumulative sum used in this procedure. Usually attributive, as cusum chart, cusum test, etc.The procedure was first developed by E. S. Page in 1954. It is most commonly used in quality control and in the monitoring of industrial processes. ΚΠ 1961 Quality Control & Appl. Statistics 6 901 Charts named above are given and two cusum and Shewhart schemes compared. 1978 T. Chard in T. S. Work & E. Work Lab. Techniques in Biochem. & Molecular Biol. VI. ii. x. 492 The cusum plot is a much more sensitive indicator of a change in conditions than is the plot of serial values. 1985 Biometrika 72 276 The standard modification of Page's procedure is to run two one-sided cusum tests simultaneously. 1990 Cattle Inspection (Committee on Evaluation of USDA Streamlined Inspection Syst. for Cattle) iv. 35 CUSUM is used to monitor slaughtering of cattle; this is similar to process control in manufacturing facilities. 2004 P. Farrington & N. Andrews in R. Brookmeyer & D. F. Stroup Monitoring Health of Populations viii. 222 The standard deviation is likely to vary with time of year, and standardized cusums are best used. 2009 S. J. Morrison Statistics for Engineers iii. 42 Although traditional forms of sample mean charts and cusum charts are well established..there is scope for developing new forms of control charts to cope with unusual circumstances. < as lemmas |
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