activity
20242026
collaborators

5 papers

cs.CL2026

Beyond Prompt Engineering: A Systematic Analysis of Prompt Lexical Sensitivity and Its Impacts on Quality

Qipeng Xie, Zi Liang, Jiafei Wu +6

Large Language Models (LLMs) exhibit extreme sensitivity to surface-level prompt variations, in which minor lexical changes can trigger disproportionate performance fluctuations. M…

cs.CR2026

Argus: Reorchestrating Static Analysis via a Multi-Agent Ensemble for Full-Chain Security Vulnerability Detection

Zi Liang, Qipeng Xie, Jun He +7

Recent advancements in Large Language Models (LLMs) have sparked interest in their application to Static Application Security Testing (SAST), primarily due to their superior contex…

cs.LG2025

A Fast and Flat Federated Learning Method via Weighted Momentum and Sharpness-Aware Minimization

Tianle Li, Yongzhi Huang, Linshan Jiang +5

In federated learning (FL), models must \emph{converge quickly} under tight communication budgets while \emph{generalizing} across non-IID client distributions. These twin requirem…

cs.LG2025

FedWCM: Unleashing the Potential of Momentum-based Federated Learning in Long-Tailed Scenarios

Tianle Li, Yongzhi Huang, Linshan Jiang +5

Federated Learning (FL) enables decentralized model training while preserving data privacy. Despite its benefits, FL faces challenges with non-identically distributed (non-IID) dat…

cs.CR2024

Lancelot: Towards Efficient and Privacy-Preserving Byzantine-Robust Federated Learning within Fully Homomorphic Encryption

Siyang Jiang, Hao Yang, Qipeng Xie +3

In sectors such as finance and healthcare, where data governance is subject to rigorous regulatory requirements, the exchange and utilization of data are particularly challenging.…