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Gaussian Error Linear Unit

GELU gates an input smoothly according to the Gaussian cumulative distribution. It differs from ReLU's hard zero threshold and is widely used in Transformer feed-forward blocks.

\operatorname{GELU}(x)=x\Phi(x)

Overview. GELU gates an input smoothly according to the Gaussian cumulative distribution.

Context. It differs from ReLU's hard zero threshold and is widely used in Transformer feed-forward blocks.

Claims and evidence

Claim ledger, 2