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In this study, we investigate the vulnerability of image watermarks to diffusion-model-based image editing, a challenge exacerbated by the computational cost of accessing gradient information and the closed-source nature of many diffusion…

计算机视觉与模式识别 · 计算机科学 2024-06-07 Minzhou Pan , Yi Zeng , Xue Lin , Ning Yu , Cho-Jui Hsieh , Peter Henderson , Ruoxi Jia

Guard models are a critical component of LLM safety, but their sensitivity to superficial linguistic variations remains a key vulnerability. We show that even meaning-preserving paraphrases can cause large fluctuations in safety scores,…

计算与语言 · 计算机科学 2025-11-17 Cristina Pinneri , Christos Louizos

This paper presents the first study on the impact of audio watermarking on spoofing countermeasures. While anti-spoofing systems are essential for securing speech-based applications, the influence of widely used audio watermarking,…

机器学习 · 计算机科学 2025-09-26 Zhenshan Zhang , Xueping Zhang , Yechen Wang , Liwei Jin , Ming Li

Image generative models have become increasingly popular, but training them requires large datasets that are costly to collect and curate. To circumvent these costs, some parties may exploit existing models by using the generated images as…

机器学习 · 计算机科学 2025-07-01 Michel Meintz , Jan Dubiński , Franziska Boenisch , Adam Dziedzic

Potential harms of Large Language Models such as mass misinformation and plagiarism can be partially mitigated if there exists a reliable way to detect machine generated text. In this paper, we propose a new watermarking method to detect…

计算与语言 · 计算机科学 2023-12-12 Kaan Efe Keleş , Ömer Kaan Gürbüz , Mucahid Kutlu

Large language model (LLM) unlearning is critical in real-world applications where it is necessary to efficiently remove the influence of private, copyrighted, or harmful data from some users. Existing utility-centric unlearning metrics…

Watermarking is a technical alternative to safeguarding intellectual property and reducing misuse. Existing methods focus on optimizing watermarked latent variables to balance watermark robustness and fidelity, as Latent diffusion models…

图像与视频处理 · 电气工程与系统科学 2026-02-09 Liangqi Lei , Keke Gai , Jing Yu , Qi Wu

The rapid advancement of generative models has led to the synthesis of real-fake ambiguous voices. To erase the ambiguity, embedding watermarks into the frequency-domain features of synthesized voices has become a common routine. However,…

密码学与安全 · 计算机科学 2025-06-24 Yue Li , Weizhi Liu , Dongdong Lin , Hui Tian , Hongxia Wang

Text watermarking for large language models (LLMs) enables model owners to verify text origin and protect intellectual property. While watermarking methods for closed-source LLMs are relatively mature, extending them to open-source models…

密码学与安全 · 计算机科学 2025-10-29 Jiaqi Xue , Yifei Zhao , Mansour Al Ghanim , Shangqian Gao , Ruimin Sun , Qian Lou , Mengxin Zheng

The rapid advancement of large language models (LLMs) has made it increasingly difficult to distinguish between text written by humans and machines. Addressing this, we propose a novel method for generating watermarks that strategically…

计算与语言 · 计算机科学 2024-05-15 Georg Niess , Roman Kern

State-of-the-art text-to-image models generate photorealistic images at an unprecedented speed. This work focuses on models that operate in a bitwise autoregressive manner over a discrete set of tokens that is practically infinite in size.…

计算机视觉与模式识别 · 计算机科学 2025-12-04 Louis Kerner , Michel Meintz , Bihe Zhao , Franziska Boenisch , Adam Dziedzic

Large language models (LLMs) may exhibit unintended or undesirable behaviors. Recent works have concentrated on aligning LLMs to mitigate harmful outputs. Despite these efforts, some anomalies indicate that even a well-conducted alignment…

计算与语言 · 计算机科学 2025-09-24 Jiaming Ji , Kaile Wang , Tianyi Qiu , Boyuan Chen , Jiayi Zhou , Changye Li , Hantao Lou , Juntao Dai , Yunhuai Liu , Yaodong Yang

Watermarking is a commonly used strategy to protect creators' rights to digital images, videos and audio. Recently, watermarking methods have been extended to deep learning models -- in principle, the watermark should be preserved when an…

A recent watermarking scheme for language models achieves distortion-free embedding and robustness to edit-distance attacks. However, it suffers from limited generation diversity and high detection overhead. In parallel, recent research has…

密码学与安全 · 计算机科学 2025-12-12 Yangkun Wang , Jingbo Shang

Deep neural networks are valuable assets considering their commercial benefits and huge demands for costly annotation and computation resources. To protect the copyright of DNNs, backdoor-based ownership verification becomes popular…

密码学与安全 · 计算机科学 2023-09-12 Guanhao Gan , Yiming Li , Dongxian Wu , Shu-Tao Xia

Watermarking is one of the most important copyright protection tools for digital media. The most challenging type of watermarking is the imperceptible one, which embeds identifying information in the data while retaining the latter's…

计算机视觉与模式识别 · 计算机科学 2023-05-12 Natan Semyonov , Rami Puzis , Asaf Shabtai , Gilad Katz

While the wide adoption of refusal training in large language models (LLMs) has showcased improvements in model safety, recent works have highlighted shortcomings due to the shallow nature of these alignment methods. To this end, the work…

机器学习 · 计算机科学 2026-04-17 Pankayaraj Pathmanathan , Furong Huang

Watermarking for large language models (LLMs) has emerged as an effective tool for distinguishing AI-generated text from human-written content. Statistically, watermark schemes induce dependence between generated tokens and a pseudo-random…

统计方法学 · 统计学 2026-04-13 Weijie Su , Ruodu Wang , Zinan Zhao

Statistical watermarking techniques are well-established for sequentially decoded language models (LMs). However, these techniques cannot be directly applied to order-agnostic LMs, as the tokens in order-agnostic LMs are not generated…

计算与语言 · 计算机科学 2024-10-18 Ruibo Chen , Yihan Wu , Yanshuo Chen , Chenxi Liu , Junfeng Guo , Heng Huang

Watermarking is a technical means to dissuade malfeasant usage of Large Language Models. This paper proposes a novel watermarking scheme, so-called WaterMax, that enjoys high detectability while sustaining the quality of the generated text…

密码学与安全 · 计算机科学 2024-10-21 Eva Giboulot , Teddy Furon