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Watermarking has emerged as a promising technique to track AI-generated content and differentiate it from authentic human creations. While prior work extensively studies watermarking for autoregressive large language models (LLMs) and image…

Cryptography and Security · Computer Science 2026-02-16 Avi Bagchi , Akhil Bhimaraju , Moulik Choraria , Daniel Alabi , Lav R. Varshney

A new unimodal distribution family indexed by the mode and three other parameters is derived from a mixture of a Gumbel distribution for the maximum and a Gumbel distribution for the minimum. Properties of the proposed distribution are…

Methodology · Statistics 2024-07-02 Qingyang Liu , Xianzheng Huang , Haiming Zhou

Text watermarking plays a crucial role in ensuring the traceability and accountability of large language model (LLM) outputs and mitigating misuse. While promising, most existing methods assume perfect pseudorandomness. In practice,…

Statistics Theory · Mathematics 2026-01-21 T. Tony Cai , Xiang Li , Qi Long , Weijie J. Su , Garrett G. Wen

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…

Cryptography and Security · Computer Science 2025-12-12 Yangkun Wang , Jingbo Shang

Watermarking has emerged as a promising way to detect LLM-generated text, by augmenting LLM generations with later detectable signals. Recent work has proposed multiple families of watermarking schemes, several of which focus on preserving…

Cryptography and Security · Computer Science 2025-02-25 Thibaud Gloaguen , Nikola Jovanović , Robin Staab , Martin Vechev

Text watermarks in large language models (LLMs) are increasingly used to detect synthetic text, mitigating misuse cases like fake news and academic dishonesty. While existing watermarking detection techniques primarily focus on classifying…

Computation and Language · Computer Science 2025-06-13 Xuandong Zhao , Chenwen Liao , Yu-Xiang Wang , Lei Li

The rapid adoption of large language models (LLMs), such as GPT-4 and Claude 3.5, underscores the need to distinguish LLM-generated text from human-written content to mitigate the spread of misinformation and misuse in education. One…

Machine Learning · Statistics 2025-11-11 Xingchi Li , Xiaochi Liu , Guanxun Li

This paper introduces a novel watermarking method for diffusion models. It is based on guiding the diffusion process using the gradient computed from any off-the-shelf watermark decoder. The gradient computation encompasses different image…

Cryptography and Security · Computer Science 2026-05-08 Enoal Gesny , Eva Giboulot , Teddy Furon , Vivien Chappelier

This paper considers the problem of designing physical watermark signals in order to optimally detect possible replay attack in a linear time-invariant system, under the assumption that the system parameters are unknown and need to be…

Systems and Control · Electrical Eng. & Systems 2019-11-06 Hanxiao Liu , Yilin Mo , Jiaqi Yan , Lihua Xie , Karl H. Johansson

We present the first undetectable watermarking scheme for generative image models. Undetectability ensures that no efficient adversary can distinguish between watermarked and un-watermarked images, even after making many adaptive queries.…

Cryptography and Security · Computer Science 2025-04-23 Sam Gunn , Xuandong Zhao , Dawn Song

In this paper, we introduce a simple yet effective tabular data watermarking mechanism with statistical guarantees. We show theoretically that the proposed watermark can be effectively detected, while faithfully preserving the data…

Cryptography and Security · Computer Science 2024-05-28 Hengzhi He , Peiyu Yu , Junpeng Ren , Ying Nian Wu , Guang Cheng

Protecting intellectual property on LLM-generated code necessitates effective watermarking systems that can operate within code's highly structured, syntactically constrained nature. In this work, we introduce CodeTracer, an innovative…

Cryptography and Security · Computer Science 2026-05-26 Zhimeng Guo , Huaisheng Zhu , Siyuan Xu , Hangfan Zhang , Teng Xiao , Minhao Cheng

In this paper a novel fragile watermarking scheme is proposed to detect, localize and recover malicious modifications in relational databases. In the proposed scheme, all tuples in the database are first securely divided into groups. Then…

Databases · Computer Science 2010-09-07 Hamed khataeimaragheh , Hassan Rashidi

Accurately reconstructing and forecasting ocean fields from sparse observations is critical for both operational and scientific purposes. Optimizing sensor placement to maximize reconstruction skill remains challenging due to evolving ocean…

Atmospheric and Oceanic Physics · Physics 2026-04-27 Oscar Chapron , Ronan Fablet , Yann Stéphan

An information-theoretic approach is proposed to watermark embedding and detection under limited detector resources. First, we consider the attack-free scenario under which asymptotically optimal decision regions in the Neyman-Pearson sense…

Information Theory · Computer Science 2016-11-15 Neri Merhav , Erez Sabbag

Gradient Boosting Decision Trees (GBDTs) are widely used in industry and academia for their high accuracy and efficiency, particularly on structured data. However, watermarking GBDT models remains underexplored compared to neural networks.…

Artificial Intelligence · Computer Science 2025-11-14 Jun Woo Chung , Yingjie Lao , Weijie Zhao

Watermarking language models is essential for distinguishing between human and machine-generated text and thus maintaining the integrity and trustworthiness of digital communication. We present a novel green/red list watermarking approach…

Machine Learning · Statistics 2025-06-13 Yangxinyu Xie , Xiang Li , Tanwi Mallick , Weijie J. Su , Ruixun Zhang

Watermarking the outputs of generative models has emerged as a promising approach for tracking their provenance. Despite significant interest in autoregressive image generation models and their potential for misuse, no prior work has…

Machine Learning · Computer Science 2025-10-24 Nikola Jovanović , Ismail Labiad , Tomáš Souček , Martin Vechev , Pierre Fernandez

Watermarking combines an imperceptible change to an input image that will trigger a detector, to assert provenance and protect intellectual property. The literature has shown great interest in attacks on watermarking schemes: attackers are…

Cryptography and Security · Computer Science 2026-05-19 Maria Bulychev , Neil G. Marchant , Benjamin I. P. Rubinstein

Digital image watermarking is the process of embedding and extracting a watermark covertly on a cover-image. To dynamically adapt image watermarking algorithms, deep learning-based image watermarking schemes have attracted increased…

Multimedia · Computer Science 2020-07-07 Xin Zhong , Pei-Chi Huang , Spyridon Mastorakis , Frank Y. Shih
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