collaborators

5 papers

cs.CV2025

TokenPure: Watermark Removal through Tokenized Appearance and Structural Guidance

Pei Yang, Yepeng Liu, Kelly Peng +2

In the digital economy era, digital watermarking serves as a critical basis for ownership proof of massive replicable content, including AI-generated and other virtual assets. Desi…

cs.CR2025

A Reinforcement Learning Framework for Robust and Secure LLM Watermarking

Li An, Yujian Liu, Yepeng Liu +3

Watermarking has emerged as a promising solution for tracing and authenticating text generated by large language models (LLMs). A common approach to LLM watermarking is to construc…

cs.CV2025

Boosting Adversarial Transferability via Commonality-Oriented Gradient Optimization

Yanting Gao, Yepeng Liu, Junming Liu +4

Exploring effective and transferable adversarial examples is vital for understanding the characteristics and mechanisms of Vision Transformers (ViTs). However, adversarial examples…

cs.CR2025

Defending LLM Watermarking Against Spoofing Attacks with Contrastive Representation Learning

Li An, Yujian Liu, Yepeng Liu +3

Watermarking has emerged as a promising technique for detecting texts generated by LLMs. Current research has primarily focused on three design criteria: high quality of the waterm…

cs.CR2025

Distributional Information Embedding: A Framework for Multi-bit Watermarking

Haiyun He, Yepeng Liu, Ziqiao Wang +2

This paper introduces a novel problem, distributional information embedding, motivated by the practical demands of multi-bit watermarking for large language models (LLMs). Unlike t…