activity
20212026
most citedBackdoor Defense via Decoupling the Training Process

42 citations · 139 across the 48 of their papers we have counts for

collaborators

53 papers

cs.CR2026

ASCENT: First-Order Optimal Fine-Tuning with Recalibration for Safety--Utility Co-Enhancement

Weiwei Qi, Chongyu Wang, Tianhang Zheng +5

Supervised fine-tuning can substantially improve the downstream utility of large language models (LLMs) but may compromise their safety. Existing safety-preserving methods constrai…

cs.CR2026

ActBench: Self-Evolving Benchmark of Behavioral Safety in Cowork Agents

Hongwei Yao, Yiming Liu, Meihui Chen +6

Cowork agents may complete benign tasks while disclosing protected data, manipulating unauthorized state, invocate unauthorized API. We define behavioral safety and introduce ActBe…

cs.CR2026

DARWIN: Evolving Jailbreak Adversary and Guardrail for LLM Safety Evaluation and Protection

Weiwei Qi, Zefeng Wu, Zhilin Guo +5

Most existing LLM safety evaluation and defense methods are static: jailbreak vulnerabilities are assessed with fixed attacks, and guardrails are trained on fixed malicious-prompt…

cs.CR2026

DataShield: Uncovering Risky Fine-Tuning Data Across LLMs Through Consensus Subspace Alignment

Zefeng Wu, Weiwei Qi, Jielong Chen +6

Fine-tuning large language models (LLMs) on domain-specific datasets has become a standard paradigm for adapting LLMs to specialized applications. However, recent work has shown th…

cs.CR2026

TRACE: Task-Aware Adaptive Self-Evolving Agentic Jailbreaking

Churui Zeng, Weiwei Qi, Kedong Xiu +6

The rise of LLM agents introduces a new threat by enabling planning, coding, and even end-to-end execution of expert-level attack workflows. However, this threat remains underexplo…

cs.CR2026

Towards Identification and Intervention of Safety-Critical Parameters in Large Language Models

Weiwei Qi, Zefeng Wu, Tianhang Zheng +4

Ensuring Large Language Model (LLM) safety is crucial, yet the lack of a clear understanding about safety mechanisms hinders the development of precise and reliable methodologies f…

cs.CV2026

JANUS: A Lightweight Framework for Jailbreaking Text-to-Image Models via Distribution Optimization

Haolun Zheng, Yu He, Tailun Chen +6

Text-to-image (T2I) models such as Stable Diffusion and DALLE remain susceptible to generating harmful or Not-Safe-For-Work (NSFW) content under jailbreak attacks despite deployed…

cs.CL2026

Towards Cross-lingual Values Judgment: A Consensus-Pluralism Perspective

Yukun Chen, Xinyu Zhang, Boyi Deng +6

As large language models (LLMs) are employed worldwide, existing evaluation paradigms for their multilingual capabilities primarily focus on factual task performance, neglecting th…

cs.CL2026

Explainable Token-level Noise Filtering for LLM Fine-tuning Datasets

Yuchen Yang, Wenze Lin, Enhao Huang +6

Large Language Models (LLMs) have seen remarkable advancements, achieving state-of-the-art results in diverse applications. Fine-tuning, an important step for adapting LLMs to spec…

cs.SI2026

DualMind: Towards Understanding Cognitive-Affective Cascades in Public Opinion Dissemination via Multi-Agent Simulation

Enhao Huang, Tongtong Pan, Shuhuai Zhang +6

Forecasting public opinion during PR crises is challenging, as existing frameworks often overlook the interaction between transient affective responses and persistent cognitive bel…

cs.CR2026

SpatialJB: How Text Distribution Art Becomes the "Jailbreak Key" for LLM Guardrails

Zhiyi Mou, Jingyuan Yang, Zeheng Qian +6

While Large Language Models (LLMs) have powerful capabilities, they remain vulnerable to jailbreak attacks, which is a critical barrier to their safe web real-time application. Cur…

cs.CR2025

NonTextual Target Attack

Xinzhe Huang, Wenjing Hu, Tianhang Zheng +6

Existing gradient-based jailbreak attacks on Large Language Models (LLMs) typically optimize adversarial suffixes to align the LLM output with predefined target responses. However,…

cs.CR2025

Dynamic Jailbreaking Attack

Kedong Xiu, Yunhan Yang, Churui Zeng +6

Existing gradient-based jailbreak attacks typically optimize a fixed-length adversarial suffix toward a predefined target response with a static optimization strategy. However, thi…

cs.CR2025

Taught Well Learned Ill: Towards Distillation-conditional Backdoor Attack

Yukun Chen, Boheng Li, Yu Yuan +5

Knowledge distillation (KD) is a vital technique for deploying deep neural networks (DNNs) on resource-constrained devices by transferring knowledge from large teacher models to li…

cs.CL2025

HarmMetric Eval: Benchmarking Metrics and Judges for LLM Harmfulness Assessment

Langqi Yang, Tianhang Zheng, Yixuan Chen +6

The potential of large language models (LLMs) to generate harmful content poses a significant safety risk for data management, as LLMs are increasingly being used as engines for da…

cs.LG2025

Module-Aware Parameter-Efficient Machine Unlearning on Transformers

Wenjie Bao, Jian Lou, Yuke Hu +5

Transformer has become fundamental to a vast series of pre-trained large models that have achieved remarkable success across diverse applications. Machine unlearning, which focuses…

cs.CR2025★ 1 cited

MAJIC: Markovian Adaptive Jailbreaking via Iterative Composition of Diverse Innovative Strategies

Weiwei Qi, Shuo Shao, Wei Gu +4

Large Language Models (LLMs) have exhibited remarkable capabilities but remain vulnerable to jailbreaking attacks, which can elicit harmful content from the models by manipulating…

cs.AI2025

Towards Evaluation for Real-World LLM Unlearning

Ke Miao, Yuke Hu, Xiaochen Li +4

This paper analyzes the limitations of existing unlearning evaluation metrics in terms of practicality, exactness, and robustness in real-world LLM unlearning scenarios. To overcom…

cs.LG2025

Towards Mitigating Excessive Forgetting in LLM Unlearning via Entanglement-Guidance with Proxy Constraint

Zhihao Liu, Jian Lou, Yuke Hu +6

Large language models (LLMs) are trained on massive datasets that may include private or copyrighted content. Due to growing privacy and ownership concerns, data owners may request…

cs.CL2025★ 1 cited

ContextCache: Context-Aware Semantic Cache for Multi-Turn Queries in Large Language Models

Jianxin Yan, Wangze Ni, Lei Chen +4

Semantic caching significantly reduces computational costs and improves efficiency by storing and reusing large language model (LLM) responses. However, existing systems rely prima…

cs.LG2025★ 1 cited

Rethinking Data Protection in the (Generative) Artificial Intelligence Era

Yiming Li, Shuo Shao, Yu He +8

The (generative) artificial intelligence (AI) era has profoundly reshaped the meaning and value of data. No longer confined to static content, data now permeates every stage of the…

cs.CR2025★ 1 cited

SmartGuard: Leveraging Large Language Models for Network Attack Detection through Audit Log Analysis and Summarization

Hao Zhang, Shuo Shao, Song Li +3

End-point monitoring solutions are widely deployed in today's enterprise environments to support advanced attack detection and investigation. These monitors continuously record sys…

cs.CR2025

Towards Label-Only Membership Inference Attack against Pre-trained Large Language Models

Yu He, Boheng Li, Liu Liu +6

Membership Inference Attacks (MIAs) aim to predict whether a data sample belongs to the model's training set or not. Although prior research has extensively explored MIAs in Large…

cs.CR2025

REFINE: Inversion-Free Backdoor Defense via Model Reprogramming

Yukun Chen, Shuo Shao, Enhao Huang +4

Backdoor attacks on deep neural networks (DNNs) have emerged as a significant security threat, allowing adversaries to implant hidden malicious behaviors during the model training…