Papers with SpecDec
Speculative Decoding: Exploiting Speculative Execution for Accelerating Seq2seq Generation (2023.findings-emnlp)
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| Challenge: | Experimental results show draft-then-verify paradigm can achieve around 5x speedup for the popular Transformer architectures with comparable generation quality to beam search decoding. |
| Approach: | They propose to use Spec-Drafter and Spec Verification to accelerate autoregressive (AR) decoding by combining a model optimized for efficient and accurate drafting and a reliable method for verifying the drafted tokens efficiently. |
| Outcome: | The proposed method achieves 5x speedup on seq2seq tasks with comparable generation quality to beam search decoding, refreshing the impression that draft-then-verify paradigm introduces only 1.4x2x speed up. |