Unverified70% confidenceBenchmarkExact time
Watermark detection typically requires text of more than 200 tokens in length to identify the watermark source at a controlled false positive rate.
2
Sources
70%
Confidence
Long-term
Relevance
7/15/2026
First Seen
Sources
Related Claims
Unverified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%).73% similarUnverifiedTexts that are too short (e.g., fewer than 100 tokens) may not accumulate sufficient statistical signal for a reliable watermark determination.73% similarUnverifiedThe longer the text, the more statistical samples are available and the higher the test's statistical power, which is why watermark detection in short texts is inherently difficult.70% similar
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