Numerosity reduction – sampling design pattern

This design pattern explores the implementation of sampling techniques for data reduction.

Background

Sampling belongs to the numerosity reduction category of data reduction. It can be used as a data reduction technique, as it represents a very large amount of data by a much smaller subset.

Motivation

Sampling is essentially a method of data reduction to determine the approximate subset of a population that has the characteristics of the entire population. Sampling is a general approach to choose a subset of data to accurately represent a population. Sampling is performed by various methods that differ in the way in which they define what goes into the subset and the way candidates are located for that ...

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