データとは

データとは?

  • facts and statistics collected together for reference or analysis.
  • In general, data is any set of characters that is gathered and translated for some purpose, usually analysis.

$$ \text{Character} \in \text{Data} $$

データとデータセット

用語意味
データ(data, datum)$x = \forall$
データセット(dataset)$X = \{x_1, x_2, ... , x_n \}$

DIKW Pyramid

  • The DIKW pyramid, also known variously as the DIKW hierarchy, wisdom hierarchy, knowledge hierarchy, information hierarchy, and the data pyramid

REFERENCES:

  • https://en.wikipedia.org/wiki/DIKW_pyramid
  • https://www.computerhope.com/jargon/d/data.htm