negentropy

Japanese: negentropy
negentropy

According to this definition, the average amount of information per minus sign, H , is called "entropy" because it has the same shape as the entropy in thermodynamics. However, unlike in thermodynamics, it has a negative sign, so it is sometimes called "negative entropy (negentropy)." While entropy in statistical mechanics is a "measure of disorder," the entropy of information is negative, so information can be said to be a "measure of order."

*Some terminology explanations that mention "negentropy" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…この定義によれば-符号あたりの平均情報量Hはとなり,熱力学でいうエントロピーと同じ形をしているので〈エントロピー〉と呼ばれる。ただし熱力学の場合と異なり負号がついているので〈負エントロピー(ネゲントロピーnegentropy)〉ということもある。統計力学でいうエントロピーが〈無秩序性の測度〉であるのに対し,情報のエントロピーは負なので情報は〈秩序性の測度〉といってもよい。…

※「negentropy」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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