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What is: Sinusoidal Representation Network?

SourceImplicit Neural Representations with Periodic Activation Functions
Year2000
Data SourceCC BY-SA - https://paperswithcode.com

Siren, or Sinusoidal Representation Network, is a periodic activation function for implicit neural representations. Specifically it uses the sine as a periodic activation function:

Φ(x)=W_n(ϕ_n1ϕ_n2ϕ_0)\Phi\left(x\right) = \textbf{W}\_{n}\left(\phi\_{n-1} \circ \phi\_{n-2} \circ \dots \circ \phi\_{0} \right)