collaborators

5 papers

cs.CR2025

Do Not Merge My Model! Safeguarding Open-Source LLMs Against Unauthorized Model Merging

Qinfeng Li, Miao Pan, Jintao Chen +5

Model merging has emerged as an efficient technique for expanding large language models (LLMs) by integrating specialized expert models. However, it also introduces a new threat: m…

cs.AI2025

RAGFort: Dual-Path Defense Against Proprietary Knowledge Base Extraction in Retrieval-Augmented Generation

Qinfeng Li, Miao Pan, Ke Xiong +6

Retrieval-Augmented Generation (RAG) systems deployed over proprietary knowledge bases face growing threats from reconstruction attacks that aggregate model responses to replicate…

cs.CR2024

CoreGuard: Safeguarding Foundational Capabilities of LLMs Against Model Stealing in Edge Deployment

Qinfeng Li, Tianyue Luo, Xuhong Zhang +8

Proprietary large language models (LLMs) exhibit strong generalization capabilities across diverse tasks and are increasingly deployed on edge devices for efficiency and privacy re…

cs.CR2024

Rethinking the Vulnerabilities of Face Recognition Systems:From a Practical Perspective

Jiahao Chen, Zhiqiang Shen, Yuwen Pu +5

Face Recognition Systems (FRS) have increasingly integrated into critical applications, including surveillance and user authentication, highlighting their pivotal role in modern se…

cs.CR2024

TransLinkGuard: Safeguarding Transformer Models Against Model Stealing in Edge Deployment

Qinfeng Li, Zhiqiang Shen, Zhenghan Qin +4

Proprietary large language models (LLMs) have been widely applied in various scenarios. Additionally, deploying LLMs on edge devices is trending for efficiency and privacy reasons.…