activity
20232025
most citedBadChain: Backdoor Chain-of-Thought Prompting for Large Language Models

8 citations · 17 across the 7 of their papers we have counts for

collaborators

7 papers

cs.LG2025

SoSBench: Benchmarking Safety Alignment on Six Scientific Domains

Fengqing Jiang, Fengbo Ma, Zhangchen Xu +8

Large language models (LLMs) exhibit advancing capabilities in complex tasks, such as reasoning and graduate-level question answering, yet their resilience against misuse, particul…

cs.AI2025

SafeChain: Safety of Language Models with Long Chain-of-Thought Reasoning Capabilities

Fengqing Jiang, Zhangchen Xu, Yuetai Li +5

Emerging large reasoning models (LRMs), such as DeepSeek-R1 models, leverage long chain-of-thought (CoT) reasoning to generate structured intermediate steps, enhancing their reason…

cs.CR2024

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

Zhangchen Xu, Fengqing Jiang, Luyao Niu +3

In Federated Learning (FL), a set of clients collaboratively train a machine learning model (called global model) without sharing their local training data. The local training data…

cs.CR2024

Game of Trojans: Adaptive Adversaries Against Output-based Trojaned-Model Detectors

Dinuka Sahabandu, Xiaojun Xu, Arezoo Rajabi +4

We propose and analyze an adaptive adversary that can retrain a Trojaned DNN and is also aware of SOTA output-based Trojaned model detectors. We show that such an adversary can ens…

cs.CL2024★ 8 cited

ArtPrompt: ASCII Art-based Jailbreak Attacks against Aligned LLMs

Fengqing Jiang, Zhangchen Xu, Luyao Niu +4

Safety is critical to the usage of large language models (LLMs). Multiple techniques such as data filtering and supervised fine-tuning have been developed to strengthen LLM safety.…

cs.CR2024★ 8 cited

BadChain: Backdoor Chain-of-Thought Prompting for Large Language Models

Zhen Xiang, Fengqing Jiang, Zidi Xiong +3

Large language models (LLMs) are shown to benefit from chain-of-thought (COT) prompting, particularly when tackling tasks that require systematic reasoning processes. On the other…

cs.LG2023★ 1 cited

CBD: A Certified Backdoor Detector Based on Local Dominant Probability

Zhen Xiang, Zidi Xiong, Bo Li

Backdoor attack is a common threat to deep neural networks. During testing, samples embedded with a backdoor trigger will be misclassified as an adversarial target by a backdoored…