activity
20232026
most citedLMSanitator: Defending Prompt-Tuning Against Task-Agnostic Backdoors

12 citations · 13 across the 10 of their papers we have counts for

collaborators

10 papers

cs.CR2026

Watermarking LLM Agent Trajectories

Wenlong Meng, Chen Gong, Terry Yue Zhuo +6

LLM agents rely heavily on high-quality trajectory data to guide their problem-solving behaviors, yet producing such data requires substantial task design, high-capacity model gene…

cs.AI2026

Dynamic Thinking-Token Selection for Efficient Reasoning in Large Reasoning Models

Zhenyuan Guo, Tong Chen, Wenlong Meng +4

Large Reasoning Models (LRMs) excel at solving complex problems by explicitly generating a reasoning trace before deriving the final answer. However, these extended generations inc…

cs.CL2025

Enhancing Meme Emotion Understanding with Multi-Level Modality Enhancement and Dual-Stage Modal Fusion

Yi Shi, Wenlong Meng, Zhenyuan Guo +2

With the rapid rise of social media and Internet culture, memes have become a popular medium for expressing emotional tendencies. This has sparked growing interest in Meme Emotion…

cs.CR2025

GradEscape: A Gradient-Based Evader Against AI-Generated Text Detectors

Wenlong Meng, Shuguo Fan, Chengkun Wei +5

In this paper, we introduce GradEscape, the first gradient-based evader designed to attack AI-generated text (AIGT) detectors. GradEscape overcomes the undifferentiable computation…

cs.LG2025

DC-SGD: Differentially Private SGD with Dynamic Clipping through Gradient Norm Distribution Estimation

Chengkun Wei, Weixian Li, Chen Gong +1

Differentially Private Stochastic Gradient Descent (DP-SGD) is a widely adopted technique for privacy-preserving deep learning. A critical challenge in DP-SGD is selecting the opti…

cs.CL2025

Dialogue Injection Attack: Jailbreaking LLMs through Context Manipulation

Wenlong Meng, Fan Zhang, Wendao Yao +4

Large language models (LLMs) have demonstrated significant utility in a wide range of applications; however, their deployment is plagued by security vulnerabilities, notably jailbr…

cs.CL2025

Be Cautious When Merging Unfamiliar LLMs: A Phishing Model Capable of Stealing Privacy

Zhenyuan Guo, Yi Shi, Wenlong Meng +3

Model merging is a widespread technology in large language models (LLMs) that integrates multiple task-specific LLMs into a unified one, enabling the merged model to inherit the sp…

cs.CL2025

R.R.: Unveiling LLM Training Privacy through Recollection and Ranking

Wenlong Meng, Zhenyuan Guo, Lenan Wu +5

Large Language Models (LLMs) pose significant privacy risks, potentially leaking training data due to implicit memorization. Existing privacy attacks primarily focus on membership…

cs.CL2023★ 12 cited

LMSanitator: Defending Prompt-Tuning Against Task-Agnostic Backdoors

Chengkun Wei, Wenlong Meng, Zhikun Zhang +6

Prompt-tuning has emerged as an attractive paradigm for deploying large-scale language models due to its strong downstream task performance and efficient multitask serving ability.…

cs.LG2023★ 1 cited

DPMLBench: Holistic Evaluation of Differentially Private Machine Learning

Chengkun Wei, Minghu Zhao, Zhikun Zhang +5

Differential privacy (DP), as a rigorous mathematical definition quantifying privacy leakage, has become a well-accepted standard for privacy protection. Combined with powerful mac…