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cs.LG2025
Revealing Weaknesses in Text Watermarking Through Self-Information Rewrite Attacks
Yixin Cheng, Hongcheng Guo, Yangming Li +1
Text watermarking aims to subtly embed statistical signals into text by controlling the Large Language Model (LLM)'s sampling process, enabling watermark detectors to verify that t…
cs.LG2024
A Study of Posterior Stability for Time-Series Latent Diffusion
Yangming Li, Yixin Cheng, Mihaela van der Schaar
Latent diffusion has demonstrated promising results in image generation and permits efficient sampling. However, this framework might suffer from the problem of posterior collapse…
cs.LG2024
Leveraging the Context through Multi-Round Interactions for Jailbreaking Attacks
Yixin Cheng, Markos Georgopoulos, Volkan Cevher +1
Large Language Models (LLMs) are susceptible to Jailbreaking attacks, which aim to extract harmful information by subtly modifying the attack query. As defense mechanisms evolve, d…