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SAC-Copula

model1 events
papersSEP 11 04:00 UTC

Watermarking Method for Diffusion Language Models Uses Correlated Gumbel Fields

A new arXiv paper proposes SAC-Copula, a watermarking scheme designed for diffusion language models, which generate text through iterative parallel unmasking rather than left-to-right decoding. The authors argue that existing sampling-based watermarking techniques, which add independent noise at each position, are poorly suited to this parallel process. Their approach instead uses smooth, correlated Gumbel fields intended to preserve output quality while embedding a detectable signal.

watermarking/diffusion-models/research/text-generation