English Dictionary

sigmoid function

名詞

(mathematical analysis, statistics) Any of various real functions whose graph resembles an elongated letter "S"; specifically, the logistic function y=(eˣ)/(eˣ+1)=1/(1+e⁻ˣ).

日本語の意味

数学解析や統計学において、グラフがS字形（シグモイド状）を示す実数関数の総称です。特にロジスティック関数（y = e^x/(e^x + 1) や y = 1/(1 + e^(-x))）が例として挙げられます。

Researchers fitted a sigmoid function to the biological response data to model the gradual saturation effect.

研究者たちは生体反応データにシグモイド関数を当てはめて、徐々に進行する飽和効果をモデル化した。

意味（1）

(mathematical analysis, statistics) Any of various real functions whose graph resembles an elongated letter "S"; specifically, the logistic function y=(eˣ)/(eˣ+1)=1/(1+e⁻ˣ).

[The] [s]igmoid function is the most commonly known function used in feed forward neural networks because of its nonlinearity and the computational simplicity of its derivative.

sigmoid functions （ plural ）