AI Writers Have a Consistent Stylometric Footprint, but AI Editors Do Not
It is shown that AI generation leaves a consistent ``stylometric footprint'': a small subset of features, primarily entropy and lexical diversity, consistently separates AI-generated text from human writing across 8 LLMs and 5 domains, while the remaining features depend heavily on the domain and generator.
Zhengyang Shan, Yuk-Yung Lee, Sophie Hao
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