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Zhuqing Liu

3 papers indexed

arxivcs.CRcs.DCcs.LGcs.NI2026-07-09

Securing Autonomous Vehicle Systems via Twin-Aware Federated Reinforcement Learning

Zifan Zhang, Minghong Fang, Dianwei Chen, Zhuqing Liu, Prashant Khanduri, Xianfeng Yang, et al.

Federated reinforcement learning (FRL) is crucial for enabling collaborative learning across multiple agents without sharing raw data, thereby enhancing privacy and scalability in the decision-making process within dynamic vehicular environments. However, poisoning attacks pose a…

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arxivcs.CRcs.AIcs.IRcs.LG2026-07-09

Beware What You Autocomplete: Forensic Attribution of Backdoored Code Completions

Anjun Gao, Yueyang Quan, Zhuqing Liu, Minghong Fang

Large language models have enabled powerful code completion systems that assist developers by predicting subsequent lines of code. However, these models remain vulnerable to backdoor attacks, where malicious fine-tuning data covertly implants unsafe behaviors. Despite advances in…

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arxivcs.CRcs.AIcs.IRcs.LGcs.MA2026-07-08

Who Broke the System? Failure Localization in LLM-Based Multi-Agent Systems

Yufei Xia, Anjun Gao, Yueyang Quan, Zhuqing Liu, Minghong Fang

Large language model (LLM) based multi-agent systems enable complex problem solving through coordinated reasoning and action, but their distributed structure also introduces new challenges in diagnosing system-level failures. When an execution fails, identifying which agent is re…

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