Supplementary Material: Implementation and Experiments for GAU-based Model

In February this year Google proposed a new Transformer variant called FLASH, which has a faster speed, lower VRAM footprint and better performance. This is achieved by designing a performant layer named GAU (Gated Attention Unit), which combines the Attention layer and FFN. In this paper, some implementation details are re-analyzed both theoretically and practically. We then propose a novel GAU-based model and pre-train it on a Chinese corpus. Results of the CLUE benchmark show that our model achieves a dev average score of 75.02, 1% higher than RoFormerV1 and being 45% faster, which is also competitive with RoFormerV2.

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