Papers › GLU Variants Improve Transformer

GLU Variants Improve Transformer

12 Feb 2020arXiv:2002.05202archive 2025-07-28

Noam Shazeer

Gated Linear Units (arXiv:1612.08083) consist of the component-wise product of two linear projections, one of which is first passed through a sigmoid function. Variations on GLU are possible, using different nonlinear (or even linear) functions in place of sigmoid. We test these variants in the feed-forward sublayers of the Transformer (arXiv:1706.03762) sequence-to-sequence model, and find that some of them yield quality improvements over the typically-used ReLU or GELU activations.

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Methods

Introduced by this paper: ReGLU, SwiGLU

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