| 释义 |
predictor|prɪˈdɪktə(r)|
Also -er.
[a. med.L. prædictor, agent-n. from prædīcĕre: see predict v. and -or.]
1. a. One who (or that which) predicts or foretells.
1651Hobbes Leviath. iii. xxxvi. 224 Prædictor,..a fore⁓teller of things to come. 1652[see predict v. 3]. 1708Swift Death Partridge Wks. 1755 II. i. 160 Whether he hath not been the cause of this poor man's death, as well as the predictor. 1859R. F. Burton Centr. Afr. in Jrnl. Geog. Soc. XXIX. 348 The Mganga is also a predictor and a soothsayer. 1885Pall Mall G. 7 Nov. 2/1 Official predicter of the weather in the United States. 1905Contemp. Rev. Apr. 545 The barometer, as a predictor, is deceptive in the ordinary way of use.
b. spec. in Statistics, a variable whose value can be used in estimation; also predictor variable.
1950S. A. Stouffer Measurement & Prediction vi. 173 Each variable..can serve as a predictor. 1966Draper & Smith Appl. Regression Analysis iv. 104 There are many problems in which a knowledge of more than one independent (or ‘predictor’) variable is necessary in order to obtain better understanding and/or better prediction of a particular response. 1974Nature 9 Aug. 466/1 Students' attitudes towards scientists were strongly related to only two of the predictor variables: deference and nurturance. 1975Sci. Amer. May 97/1 Later species grew up in the shade of the pioneering species, and the numerical abundance of saplings in the understory proved to be a reasonable predictor of a species' success in reaching the canopy. 1977Canad. Jrnl. Linguistics 1976 XXI. i. 21 Dashed lines are curves predicted on the basis of an additive model utilizing a multiple classification analysis.., which demonstrates the main effects of a given predictor (or independent variable).
2. Mil. An apparatus for automatically providing tracking information for an anti-aircraft gun from telescopic or radar observations.
1935L. Hart When Britain goes to War ii. vi. 119 Greater progress has come through the invention of..the Vickers Predictor, whereby a combined calculation of the speed, course and height of the aeroplane is automatically made and electrically transmitted to the guns. 1936Sphere 30 May 363 (caption) Operating the predictor, a delicate instrument for determining the range of enemy 'planes. 1941Ann. Reg. 1940 69 The defenders adopted new tactics, gauging the path of the raiders by means of predictors instead of using searchlights. 1944H. Hawton Night Bombing 92 Cologne's defences were massive, but with the sky thick with aircraft the searchlights were bewildered and the predictors confused. 1962S. Pugh Fighting Vehicles & Weapons ii. 74 The most satisfactory solution so far is this British-designed combination of Swedish Bofors 40 mm. power-operated, automatic light anti-aircraft gun, L.70, with a radar/predictor fire control equipment known as Fire Control Equipment No. 27 ‘Yellow Fever’. 1974Encycl. Brit. Macropædia IV. 1048/2 The original electronic analogue computers arose from the needs of anti-aircraft artillery ‘predictors’. |