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Yan-Xiao Liu

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#machine learning Preprint Sep 2026

Watermarkable Multi-Draft Speculative Sampling via Poisson Processes

This work develops a novel multi-draft speculative sampling algorithm based on Poisson processes that maintains both watermark strength and sampling efficiency, and is the first multi-draft, drafter-invariant speculative sampling scheme that maintains both watermark strength and sampling efficiency.

Yan-Xiao Liu, Si-Cheng Wan, Zhan Gao et al. · 1 citation
#machine learning Preprint Sep 2026

ExpBoN: Exponential-Noise Best-of-$n$ for Efficient Test-Time LLM Alignment

This paper introduces ExpBoN, an alternative soft BoN method based on the exponential-noise report-noisy-max mechanism that yields exponentially fast convergence in total variation, expected reward, and both directions of KL divergence, and provides comprehensive theoretical analyses of its convergence and regret behav...

Yan-Xiao Liu, Si-Cheng Wan, Deniz Gündüz · 0 citations

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