SUV: Scalable Large Language Model Copyright Compliance with Regularized Selective Unlearning

Fuente: arXiv
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Autores principales: Xu, Tianyang, Liu, Xiaoze, Wu, Feijie, Wang, Xiaoqian, Gao, Jing
Formato: Preprint
Publicado: 2025
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author Xu, Tianyang
Liu, Xiaoze
Wu, Feijie
Wang, Xiaoqian
Gao, Jing
author_facet Xu, Tianyang
Liu, Xiaoze
Wu, Feijie
Wang, Xiaoqian
Gao, Jing
contents Large Language Models (LLMs) have transformed natural language processing by learning from massive datasets, yet this rapid progress has also drawn legal scrutiny, as the ability to unintentionally generate copyrighted content has already prompted several prominent lawsuits. In this work, we introduce SUV (Selective Unlearning for Verbatim data), a selective unlearning framework designed to prevent LLM from memorizing copyrighted content while preserving its overall utility. In detail, the proposed method constructs a dataset that captures instances of copyrighted infringement cases by the targeted LLM. With the dataset, we unlearn the content from the LLM by means of Direct Preference Optimization (DPO), which replaces the verbatim copyrighted content with plausible and coherent alternatives. Since DPO may hinder the LLM's performance in other unrelated tasks, we integrate gradient projection and Fisher information regularization to mitigate the degradation. We validate our approach using a large-scale dataset of 500 famous books (predominantly copyrighted works) and demonstrate that SUV significantly reduces verbatim memorization with negligible impact on the performance on unrelated tasks. Extensive experiments on both our dataset and public benchmarks confirm the scalability and efficacy of our approach, offering a promising solution for mitigating copyright risks in real-world LLM applications.
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id arxiv_https___arxiv_org_abs_2503_22948
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publishDate 2025
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spellingShingle SUV: Scalable Large Language Model Copyright Compliance with Regularized Selective Unlearning
Xu, Tianyang
Liu, Xiaoze
Wu, Feijie
Wang, Xiaoqian
Gao, Jing
Computation and Language
Artificial Intelligence
Computers and Society
Machine Learning
Large Language Models (LLMs) have transformed natural language processing by learning from massive datasets, yet this rapid progress has also drawn legal scrutiny, as the ability to unintentionally generate copyrighted content has already prompted several prominent lawsuits. In this work, we introduce SUV (Selective Unlearning for Verbatim data), a selective unlearning framework designed to prevent LLM from memorizing copyrighted content while preserving its overall utility. In detail, the proposed method constructs a dataset that captures instances of copyrighted infringement cases by the targeted LLM. With the dataset, we unlearn the content from the LLM by means of Direct Preference Optimization (DPO), which replaces the verbatim copyrighted content with plausible and coherent alternatives. Since DPO may hinder the LLM's performance in other unrelated tasks, we integrate gradient projection and Fisher information regularization to mitigate the degradation. We validate our approach using a large-scale dataset of 500 famous books (predominantly copyrighted works) and demonstrate that SUV significantly reduces verbatim memorization with negligible impact on the performance on unrelated tasks. Extensive experiments on both our dataset and public benchmarks confirm the scalability and efficacy of our approach, offering a promising solution for mitigating copyright risks in real-world LLM applications.
title SUV: Scalable Large Language Model Copyright Compliance with Regularized Selective Unlearning
topic Computation and Language
Artificial Intelligence
Computers and Society
Machine Learning
url https://arxiv.org/abs/2503.22948