Stronger Models are NOT Stronger Teachers for Instruction Tuning

Zhangchen Xu, Fengqing Jiang, Luyao Niu, Bill Yuchen Lin, Radha Poovendran

Arxiv | Paper / ✨ HF #1 Paper of the day (Nov 13)

Magpie: Alignment Data Synthesis from Scratch by Prompting Aligned LLMs with Nothing

Zhangchen Xu, Fengqing Jiang, Luyao Niu, Yuntian Deng, Radha Poovendran, Yejin Choi, Bill Yuchen Lin

Arxiv | Paper / Website / Huggingface / Code / Demo / 新智元 / ✨ HF #1 Paper of the day (June 13)

Distributed Consensus Network: A Universal Modularized Communication Framework and Reliability Probabilistic Analysis

Yuetai Li, Zhangchen Xu, Yiqi Wang, Zihan Zhou, Jon Crowcroft, Lei Zhang

ChatBug: A Common Vulnerability of Aligned LLMs Induced by Chat Templates

Fengqing Jiang*, Zhangchen Xu*, Luyao Niu*, Bill Yuchen Lin, Radha Poovendran

AAAI 2025 | Paper / Code

CleanGen: Mitigating Backdoor Attacks for Generation Tasks in Large Language Models

Yuetai Li*, Zhangchen Xu*, Fengqing Jiang, Luyao Niu, Dinuka Sahabandu, Bhaskar Ramasubramanian, Radha Poovendran

EMNLP 2024 (Main) | Paper / Code

ACE: A Model Poisoning Attack on Contribution Evaluation Methods in Federated Learning

Zhangchen Xu, Fengqing Jiang, Luyao Niu, Jinyuan Jia, Bo Li, Radha Poovendran

Usenix Security 2024 | Paper / Slides

SafeDecoding: Defending against Jailbreak Attacks via Safety-Aware Decoding

Zhangchen Xu, Fengqing Jiang, Luyao Niu, Jinyuan Jia, Bill Yuchen Lin, Radha Poovendran

ACL 2024 (Main, Oral) | Paper / Code / Poster / Slides

Also presented at SET LLM @ ICLR 2024

ArtPrompt: ASCII Art-based Jailbreak Attacks against Aligned LLMs

Fengqing Jiang*, Zhangchen Xu*, Luyao Niu*, Zhen Xiang, Bhaskar Ramasubramanian, Bo Li, Radha Poovendran

ACL 2024 (Main) | Paper / Code / Poster

Also presented at SET LLM @ ICLR 2024

Brave: Byzantine-Resilient and Privacy-Preserving Peer-to-Peer Federated Learning

Zhangchen Xu*, Fengqing Jiang*, Luyao Niu, Jinyuan Jia, Radha Poovendran

AsiaCCS 2024 (Poster) | Paper / Poster

Also presented at PPAI Workshop @ AAAI 2024

Identifying and Mitigating Vulnerabilities in LLM-Integrated Applications

Fengqing Jiang, Zhangchen Xu, Luyao Niu, Boxin Wang, Jinyuan Jia, Bo Li, Radha Poovendran

AsiaCCS 2024 (Poster) | Paper / Poster

Also presented at Instruction Workshop @ NeurIPS 2023

Exact Fault-Tolerant Consensus with Voting Validity

Zhangchen Xu, Yuetai Li, Chenglin Feng, Lei Zhang

IPDPS 2023 (Oral) | Paper / Slides

Wireless Distributed Consensus in Vehicle to Vehicle Networks for Autonomous Driving

Chenglin Feng, Zhangchen Xu, Xincheng Zhu, Paulo Valente Klaine, Lei Zhang

IEEE Transactions on Vehicular Technology, 2023 | Paper