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📈 S-shaped function 〰️ S-shaped 🦠 S-shaped intestine
sigmoid

sigmoid

1 8.7
A smooth S-shaped function that maps numbers to values between zero and one
  • noun
  • /ˈsɪɡmɔɪd/
  • Specialized
translation icon : función sigmoide
  • So I'd have to say I lean towards sigmoids rather than exponentials.

So I'd have to say I lean towards sigmoids rather than exponentials.

Examples

  • It's it's just another popular sigmoid type activation function.

  • The nice property of sigmoid is going to be important for us in the very near future, and that future begins now.

  • And that in turn goes into a summing into a sigmoid that looks like so.

  • Well, so it's just convenient to choose the CDF to be the sigmoid function, OK.

  • So H of Theta of X equals the sigmoid function of.

  • The sigmoid function is frequently used in machine learning to map predictions to a probability between 0 and 1.

  • In statistics, the sigmoid curve effectively illustrates the relationship between a variable and the probability of an event.

  • Neural networks often employ the sigmoid as an activation function due to its smooth gradient and output range.

Compounds

sigmoid colon
  • Specialized
1 6.1

An S-shaped part of the large intestine before the rectum

sigmoid sinus
  • Specialized
9.1

A large S-shaped vein in the covering of the brain that takes blood to a vein in the neck

sigmoid vein
  • Specialized
6.7

A tube that carries blood away from the sigmoid colon

sigmoid flexure
  • Specialized
9.9

An S-shaped bend near the end of the large intestine that leads to the rectum

Surface Forms

sigmoid singular
sigmoids plural

Morphology

sigmoid = sigmoid (semi-transparent) = sigma + oid

The noun is a converted technical use of the adjective 'sigmoid' meaning S-shaped, but the mathematical specialization is not fully predictable from the form alone.

Etymology

Sigmoid joins Greek sigma (the letter 'S') and the ending -oid meaning 'like', the same ending you see in humanoid. A sigmoid function is therefore 'S-shaped', which is why mathematicians and neural networks use it to change numbers into values between 0 and 1.