activity
20232026
most citedPAPILLON: Efficient and Stealthy Fuzz Testing-Powered Jailbreaks for LLMs

3 citations · 5 across the 12 of their papers we have counts for

collaborators

13 papers

cs.CL2026

JudgeStealer: Extracting LLM Judging Capabilities across Evaluation Protocols

Chen Chen, Yaolin Chen, Xuehan Sun +5

Large language model (LLM) judges are increasingly used across various evaluation scenarios, making their judgment capabilities valuable intellectual property. However, black-box a…

cs.CL2026

The Art of Mixology: Mixup-based Obfuscation for Privacy-Preserving Split Learning in Large Language Models

Chen Chen, Xiang Gao, Xianshun Wang +6

Split learning provides a practical paradigm for resource-constrained users to train Large Language Models (LLMs) by offloading computation-intensive layers to a server while keepi…

cs.RO2026

SoK: Security and Privacy of Foundation-Model-Powered Robots

Xueluan Gong, Chen Chen, Jinxin Liu +2

Foundation models are reshaping robotics by enabling robots to interpret open-ended instructions, reason over multimodal contexts, and operate in complex, open-world environments.…

cs.CR2026

Plato's Form: Toward Backdoor Defense-as-a-Service for LLMs with Prototype Representations

Chen Chen, Yuchen Sun, Jiaxin Gao +4

Large language models (LLMs) are increasingly deployed in security-sensitive applications, yet remain vulnerable to backdoor attacks. However, existing backdoor defenses are diffic…

cs.CL2026★ 1 cited

The Shadow Self: Intrinsic Value Misalignment in Large Language Model Agents

Chen Chen, Kim Young Il, Yuan Yang +7

Large language model (LLM) agents with extended autonomy unlock new capabilities, but also introduce heightened challenges for LLM safety. In particular, an LLM agent may pursue ob…

cs.AI2025

Evaluating and Mitigating LLM-as-a-judge Bias in Communication Systems

Jiaxin Gao, Chen Chen, Yanwen Jia +3

Large Language Models (LLMs) are increasingly being used to autonomously evaluate the quality of content in communication systems, e.g., to assess responses in telecom customer sup…

cs.CL2025

Lethe: Purifying Backdoored Large Language Models with Knowledge Dilution

Chen Chen, Yuchen Sun, Jiaxin Gao +5

Large language models (LLMs) have seen significant advancements, achieving superior performance in various Natural Language Processing (NLP) tasks. However, they remain vulnerable…

cs.CR2025

LLMs Cannot Reliably Judge (Yet?): A Comprehensive Assessment on the Robustness of LLM-as-a-Judge

Songze Li, Chuokun Xu, Jiaying Wang +6

Large Language Models (LLMs) have demonstrated exceptional capabilities across diverse tasks, driving the development and widespread adoption of LLM-as-a-Judge systems for automate…

cs.CL2024

Neutralizing Backdoors through Information Conflicts for Large Language Models

Chen Chen, Yuchen Sun, Xueluan Gong +2

Large language models (LLMs) have seen significant advancements, achieving superior performance in various Natural Language Processing (NLP) tasks, from understanding to reasoning.…

cs.CL2024

Hidden Data Privacy Breaches in Federated Learning

Xueluan Gong, Yuji Wang, Shuaike Li +5

Federated Learning (FL) emerged as a paradigm for conducting machine learning across broad and decentralized datasets, promising enhanced privacy by obviating the need for direct d…

cs.CR2024★ 3 cited

PAPILLON: Efficient and Stealthy Fuzz Testing-Powered Jailbreaks for LLMs

Xueluan Gong, Mingzhe Li, Yilin Zhang +5

Large Language Models (LLMs) have excelled in various tasks but are still vulnerable to jailbreaking attacks, where attackers create jailbreak prompts to mislead the model to produ…

cs.CR2024

Proactive Detection of Physical Inter-rule Vulnerabilities in IoT Services Using a Deep Learning Approach

Bing Huang, Chen Chen, Kwok-Yan Lam +1

Emerging Internet of Things (IoT) platforms provide sophisticated capabilities to automate IoT services by enabling occupants to create trigger-action rules. Multiple trigger-actio…

cs.HC2023★ 1 cited

A Survey on Conflict Detection in IoT-based Smart Homes

Bing Huang, Dipankar Chaki, Athman Bouguettaya +1

As the adoption of IoT-based smart homes continues to grow, the importance of addressing potential conflicts becomes increasingly vital for ensuring seamless functionality and user…