3 papers
cs.CL2026
Activation-Space Anchored Access Control for Multi-Class Permission Reasoning in Large Language Models
Zhaopeng Zhang, Pengcheng Sun, Lan Zhang +4
Large language models (LLMs) are increasingly deployed over knowledge bases for efficient knowledge retrieval and question answering. However, LLMs can inadvertently answer beyond…
cs.CR2025
Untraceable DeepFakes via Traceable Fingerprint Elimination
Jiewei Lai, Lan Zhang, Chen Tang +3
Recent advancements in DeepFakes attribution technologies have significantly enhanced forensic capabilities, enabling the extraction of traces left by generative models (GMs) in im…
cs.MM2025
Efficient and Accurate Image Provenance Analysis: A Scalable Pipeline for Large-scale Images
Jiewei Lai, Lan Zhang, Chen Tang +1
The rapid proliferation of modified images on social networks that are driven by widely accessible editing tools demands robust forensic tools for digital governance. Image provena…