单词 | change-point |
释义 | > as lemmaschange-point change-point n. (a) a point at which something changes; the point on the scale of a measuring device representing this (now rare); (b) Statistics the point at which the probability distribution of a sequence of random variables changes (frequently attributive, as change point analysis, change point problem, etc.). ΚΠ 1855 C. S. Cross Engineer's Field Bk. 12 (table) Change point. 1867 A. Steinmetz Everybody's Weather Guide iv. 12 When the mercury in its downward course has passed the true change-point (29.95) rain, if it has not fallen, is to be expected in its rising again above it. 1937 Proc. Royal Soc. A. 159 58 There is evidence to show that it is associated with the magnetic change-point of these alloys. 1971 Biometrika 58 509 Inference about the change-point from cumulative sum tests. 2010 Ann. Appl. Statistics 4 1082 The detection aspect of the change-point problem attracted greater attention than its counterpart of estimation. 2013 Proc. National Acad. Sci. U.S.A. 110 984/2 The difference in cover on either side of this change point is statistically significant. < as lemmas |
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