David's Wiki

Activation Functions

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List of common activation functions


Sinusoidal

Tanh

One of the older activation functions

Sigmoid

Cosine/Sine

See SIREN

ReLU

https://pytorch.org/docs/stable/generated/torch.nn.ReLU.html

ReLU is one of the most popular activation functions. It simply performs \(\displaystyle ReLU(x) = max(x, 0) = (x \gt 0) * x\)

LeakyReLU

https://pytorch.org/docs/stable/generated/torch.nn.LeakyReLU.html

\(\displaystyle LeakyReLU(x) = (x \gt 0) * x + (x \lt 0) * (-0.01x)\)

SiLU

GELU

https://pytorch.org/docs/stable/generated/torch.nn.GELU.html

GeGLU

Resources

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