ExpShield: Safeguarding Web Text from Unauthorized Crawling and Language Modeling Exploitation

• URL: http://arxiv.org/abs/2412.21123v1
• Date: Mon, 30 Dec 2024 17:52:02 GMT
• Title: ExpShield: Safeguarding Web Text from Unauthorized Crawling and Language Modeling Exploitation
• Authors: Ruixuan Liu, Toan Tran, Tianhao Wang, Hongsheng Hu, Shuo Wang, Li Xiong,
• Abstract summary: We propose a proactive self-guard mechanism that embeds invisible perturbations into text to limit misuse in model training. This approach enables data owners to protect sensitive content directly, without relying on a third-party to perform defense.
• Score: 17.71790411163849
• License:
• Abstract: As large language models (LLMs) increasingly depend on web-scraped datasets, concerns over unauthorized use of copyrighted or personal content for training have intensified. Despite regulations such as the General Data Protection Regulation (GDPR), data owners still have limited control over the use of their content in model training. To address this, we propose ExpShield, a proactive self-guard mechanism that empowers content owners to embed invisible perturbations into their text, limiting data misuse in LLMs training without affecting readability. This preemptive approach enables data owners to protect sensitive content directly, without relying on a third-party to perform defense. Starting from the random perturbation, we demonstrate the rationale for using perturbation to conceal protected content. We further enhance the efficiency by identifying memorization triggers and creating pitfalls to diverge the model memorization in a more focused way. To validate our defense's effectiveness, we propose a novel metric of instance exploitation which captures the individual risk raised by model training. The experimental results validate the effectiveness of our approach as the MIA AUC decreases from 0.95 to 0.55, and instance exploitation approaches zero. This suggests that the individual risk does not increase after training, underscoring the significance of proactive defenses in protecting copyrighted data.

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