| 单词 | data reduction |
| 释义 | > as lemmasdata reduction data reduction n. see reduction n. 9e. data reduction e. The transformation of data into a simpler or more convenient form. In later use frequently in Computing (more fully data reduction). Cf. reduce v. 21c. ΘΚΠ society > computing and information technology > data > database > [noun] > transfer or manipulation > simplification reduction1851 1851 Jrnl. Statist. Soc. 14 149 It then only remained to employ the average results founded upon the bankers' and brokers' returns in the reduction of the data furnished by the Stamp Office. 1895 Geogr. Jrnl. 6 370 Humboldt's sections were rendered possible..by Ramond's improvement of the formula for the reduction of barometric data. 1915 Amer. Naturalist 49 587 In the reduction of data..the length of the lines x and y were measured with proportional dividers..giving a reading in tenths of microns. 1950 W. W. Stifler High-speed Computing Devices (Engin. Res. Associates) ii. 7 In on-line operation the input is communicated directly..to the data-reduction device. 1969 P. B. Jordain Condensed Computer Encycl. 423 Reduction can take several forms: changing the encoding to eliminate redundancy, or extracting significant details from the data and eliminating the rest [etc.]. 1997 J. C. King & J. Turner Antarctic Meteorol. & Climatol. v. 187 The reduction of data at the topographic surface to mean sea level is fraught with problems. 1999 What Hi-Fi? Awards Issue 33/1 MP3 technology..is a data reduction system which shrinks the memory size of..digital audio files. < as lemmas |
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