Hugging Face Trending Papers

Beyond the Point Mass: Acceptance-Derived Weights and Distributional Losses for Speculative Decoding

arXiv Computation and Language
Oct 22

Understanding Target Probability Reuse in Speculative Decoding

The paper investigates how target model probability distributions can be reused during speculative decoding to improve token selection. It shows that exact reuse requires a distribution computed with the full next-round context, and that retaining this distribution can force the rejection of accepted tokens. Experiments across six target models demonstrate that reranking first-token branches with a separately computed distribution at the current context boosts expected acceptance, especially with small tree budgets, and that drawing the first token from this distribution before tree allocation further improves acceptance and decoding speed.

By Jungseob Lee, Giyoon Jang, Chailin Nam, Jiwoo Kum, Sihyeon Lee, Kyojun Choo, Jihun Song, Eunseo Song, Chanjun Park
arXiv Computation and Language
Oct 21

When Does Better Acceptance Pay? A Controlled Study of Speculative Decoding

arXiv:2610.24993v2 Announce Type: replace Abstract: The throughput gains of speculative decoding depend on the trade-off between acceptance length and execution latency. We ask when additional accept...

By Yongchao Long, Chunrui Zheng, Yuxuan Zhou, Guangkun Nie, Tian-Chi Ma, Chao Pang, Shuohuan Wang, Yuchen Ding, Xianbin Wen, Dianhai Yu, Junyuan Shang, Yuxi Zhou, Shenda Hong
arXiv AI
Aug 5

Approximate Speculative Decoding

arXiv:2608. 03447v1 Announce Type: cross Abstract: Speculative decoding accelerates autoregressive generation by verifying a draft block with a target model in parallel.

By Yuannuo Feng, Zegang Peng, Yuxin Xie, Yubing Ye, Yizhe Chen, Wenshuai Yao, Wenyong Zhou, Wang Kang
arXiv Computation and Language
Oct 5

From Positionwise Confidence to Prefix Scheduling: Verifier Skipping in Speculative Decoding

The paper explores a new lossy strategy for speculative decoding called verifier skipping, which allows certain draft prefixes to be committed without invoking the verifier. It investigates which confidence signals—raw token confidence, learned marginal survival, or learned conditional survival—best schedule these skips, finding that raw confidence often performs best despite higher positionwise AUROC for learned signals. Experiments on HumanEval with DiffuCoder-7B-Instruct and Qwen3-32B show that all three signals can reduce verifier calls by 9.6% to 13.5% while maintaining the same pass@1 as Strict SDD.

By Haoxuan Luo, Jameson Sandler, Ferdinando Fioretto