1. subsample - Noun
2. subsample - Verb
A smaller portion of an original sample, created by trimming, subdividing, splitting or discrete collection of the original sample.
(sciences) A portion of the original sample that is representative in nature to that of the original sample, thereby assuring equivalency in results from tests and analysis either upon the subsample or the original material, independent of their size.
subsample (third-person singular simple present subsamples, present participle subsampling, simple past and past participle subsampled)
(transitive) To take subsamples from.
A simple one is the median of three rule, which estimates the median as the median of a three-element subsample; this is commonly used as a subroutine in the quicksort sorting algorithm, which uses an estimate of its input's median. Source: Internet
If a simple random subsample of elements is selected within each of these groups, this is referred to as a "two-stage" design. Source: Internet
This result was explained by a negative correlation between intelligence and practice in the elite subsample, and by practice having a higher influence on chess skill. Source: Internet