Unverified50% confidenceFactExact time
水印检测器通过统计文本中绿名单token出现频率是否显著高于随机预期来判断文本是否被水印标记
1
Sources
50%
Confidence
Long-term
Relevance
8/23/2026
First Seen
Sources
Related Entities
Related Claims
VerifiedSoft watermarking embeds a watermark by adding a small delta preference to the logits of green-list tokens, and during detection, the proportion of green-list tokens is counted and a p-value is produced via statistical testing79% similarUnverifiedWatermark detection typically requires text of more than 200 tokens in length to identify the watermark source at a controlled false positive rate.78% similarUnverifiedSetting the watermark detection threshold is a statistical hypothesis testing problem; researchers typically compute the distribution of detection statistics on non-watermarked text and set a critical value corresponding to an extremely low false positive rate (e.g., 0.01%).70% similarUnverified2023年马里兰大学研究团队提出的水印方案通过在AI生成过程中微调token选择概率来嵌入不可见的统计指纹69% similarUnverifiedTexts that are too short (e.g., fewer than 100 tokens) may not accumulate sufficient statistical signal for a reliable watermark determination.65% similar
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