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Poster
in
Workshop: Challenges in Deployable Generative AI

Provable Robust Watermarking for AI-Generated Text

Xuandong Zhao · Prabhanjan Ananth · Lei Li · Yu-Xiang Wang

Keywords: [ text generation ] [ secure ai ] [ watermark ]


Abstract:

As AI-generated text increasingly resembles human-written content, the ability to detect machine-generated text becomes crucial. To address this challenge, we present GPTWatermark, a robust and high-quality solution designed to ascertain whether a piece of text originates from a specific model. Our approach extends existing watermarking strategies and employs a fixed group design to enhance robustness against editing and paraphrasing attacks. We show that our watermarked language model enjoys strong provable guarantees on generation quality, correctness in detection, and security against evasion attacks. Experimental results on various large language models (LLMs) and diverse datasets demonstrate that our method achieves superior detection accuracy and comparable generation quality in perplexity, thus promoting the responsible use of LLMs.

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