collaborators

6 papers

cs.CV2026

From "What-If" to "What-Is": Counterfactual Thinking-Inspired Semantic Alignment for Visual Brain Decoding

Kaitao Yan, Chi Liu, Congcong Zhu +5

Visual brain decoding reconstructs visual content perceived by a person from neural measurements such as fMRI, providing a computational approach to studying how visual information…

cs.CR2026

Osmosis Distillation: Model Hijacking with the Fewest Samples

Yuchen Shi, Huajie Chen, Heng Xu +6

Transfer learning is devised to leverage knowledge from pre-trained models to solve new tasks with limited data and computational resources. Meanwhile, dataset distillation has eme…

cs.CV2025

Rethinking Bias in Generative Data Augmentation for Medical AI: a Frequency Recalibration Method

Chi Liu, Jincheng Liu, Congcong Zhu +5

Developing Medical AI relies on large datasets and easily suffers from data scarcity. Generative data augmentation (GDA) using AI generative models offers a solution to synthesize…

cs.CV2025

Causal Fingerprints of AI Generative Models

Hui Xu, Chi Liu, Congcong Zhu +3

AI generative models leave implicit traces in their generated images, which are commonly referred to as model fingerprints and are exploited for source attribution. Prior methods r…

cs.MA2025

Who's the Mole? Modeling and Detecting Intention-Hiding Malicious Agents in LLM-Based Multi-Agent Systems

Yizhe Xie, Congcong Zhu, Xinyue Zhang +4

Multi-agent systems powered by Large Language Models (LLM-MAS) have demonstrated remarkable capabilities in collaborative problem-solving. However, their deployment also introduces…

cs.CR2025

LLMail-Inject: A Dataset from a Realistic Adaptive Prompt Injection Challenge

Sahar Abdelnabi, Aideen Fay, Ahmed Salem +22

Indirect prompt injection attacks exploit a fundamental weakness of LLMs: executing unauthorized tasks from untrusted sources. Despite the practical significance of this attack vec…