| 释义 |
randomize, v.|ˈrændəmaɪz|
[f. random n., a., and adv. + -ize.]
trans. To render unpredictable, unsystematic, or random in order or arrangement; to employ random selection or sampling in (an experiment or procedure).
1926Jrnl. Min. Agric. XXXIII. 509 The distinction between errors eliminated in the field, and the errors which are to be carefully randomized in order to provide a valid estimate of the errors which cannot be eliminated, may be made most clear by one of the most useful and flexible types of arrangement, namely, the arrangement in ‘randomized blocks’. 1939H. Jeffreys Theory of Probability iv. 192 Most physicists, of course, will envy workers in subjects where uninteresting systematic effects can be randomized. 1958New Scientist 21 Aug. 659/3 Having produced a beam of the required energy, the Oak Ridge group then try to randomise it by firing it into a magnetic bottle produced by two mirror coils. 1959Test House Rep. No. OTL/M1/5/59 (Inspectorate of Fighting Vehicles & Mech. Equipm. Test House. Oil Test Lab.) 4 A programme of two tests on each of the seven oils was arranged and the tests randomised to eliminate bias. 1967Listener 26 Jan. 134/2 A number of years ago Sir Ronald Fisher made a statistical analysis of the problem and came to the unexpected conclusion that the best rule in each case was not to have any fixed rule at all, but to randomize one's actions by an appeal to chance. 1971Jrnl. Gen. Psychol. LXXXV. 172 The order of these pronouns was randomized. 1977Sci. Amer. Sept. 42/2 Assume that the deck of cards is finite, so that an umpire can indeed randomize them.
Hence ˈrandomized ppl. a., chosen at random; deliberately made random or unpredictable; ˈrandomizing ppl. a., generating random output; ˈrandomizing vbl. n., the act of rendering random.
1926Randomized [see randomize v.] 1936Nature 15 Feb. 253/1 It is with applications of the principle of testing null hypotheses by means of randomised and replicated experiments that the first nine chapters of this book deal. 1936Jrnl. R. Statist. Soc. Suppl. No. 3. 118 The tendency of deliberate randomizing is to increase the error. 1938Nature 14 May 881/1 M. G. Kendall and B. B. Smith have designed a randomizing machine. 1955Sci. Amer. Feb. 81/2 The idea is to let chance play a role in the choice of strategy, that is, to use a randomized or ‘mixed’ strategy. 1962Times Lit. Suppl. 2 Feb. 73/3 To randomized numbers where no fancy boggles The Great Boondogglers go. 1968P. A. P. Moran Introd. Probability Theory i. 44 Decimal digits which were obtained by a ‘randomizing machine’. 1970Nature 12 Dec. 1113/1 Each block of twenty trials contained all possible combinations of test stimuli presented in randomized sequence. 1978Lancet 14 Jan. 72/2 The claim that an upright maternal posture during labour improves the efficiency of the uterus to the benefit of both mother and fetus has been investigated in a randomised prospective study. |