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sigmoid function

sigmoid function noun: any of various real functions whose graph resembles an elongated letter "S"; specifically, the logistic function y=(eˣ)/(eˣ+1)=1/(1+e⁻ˣ).

sigmoid function: any of various real functions whose graph resembles an elongated letter "S"; specifically, the...
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Noun

sigmoid function (plural sigmoid functions)

  1. 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.1995, Jun Han, Claudio Moraga, The Influence of the Sigmoid Function Parameters on the Speed of Backpropagation Learning, José Mira, Francisco Sandoval (editors), From Natural to Artificial Neural...
    • The first significant new insight from gamma spatial analysis emerged on re-examination of the sigmoid function representing bilateral saturation.2012, Walter Freeman, Neurodynamics: An Exploration in Mesoscopic Brain Dynamics, Springer, page 241
    Synonyms:
    sigmoid

Synonyms of sigmoid function

Forms of sigmoid function

pluralsigmoid functions

Questions about sigmoid function

What does sigmoid function mean?
Sigmoid function means any of various real functions whose graph resembles an elongated letter "S"; specifically, the logistic function y=(eˣ)/(eˣ+1)=1/(1+e⁻ˣ).
What part of speech is sigmoid function?
Sigmoid function is a noun.
What is the plural of sigmoid function?
The plural of sigmoid function is sigmoid functions.

Words near sigmoid function in the dictionary

  1. sigmoid
  2. sigmoid colon
  3. sigmoid colons
  4. sigmoid flexure
  5. sigmoid flexures
  6. sigmoid function
  7. sigmoid functions
  8. sigmoid notch
  9. sigmoid notches
  10. sigmoid sinus
  11. sigmoid sinuses

Source and license

Adapted from Wiktionary: sigmoid function (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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