Jiejun Xiao

Xiangtan University

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Publication activitypapers/week, last 8 weeks

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Constitutional AI & AI Ethics (1)Red-Teaming & Adversarial Robustness (1)

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Junhui Wang (1)Hangtao Zhang (1)Zhirun Zheng (1)Li Zeng (1)

Papers (1)

Jul 14, 2026

Jinan University1w ago·also Ajou University, Changsha University of Science and Technology, Guangzhou University, HUST +1

PVDetector: Detecting Prompt Injection Attacks on Purpose-Specific LLM Agents through Policy-Violation Concept Analysis

LLMs can inherently recognize policy violations, and PVDetector exploits this to achieve unprecedented detection accuracy against prompt injection attacks.

Junhui Wang, Hangtao Zhang, Zhirun Zheng +5

Constitutional AI & AI Ethics Red-Teaming & Adversarial Robustness

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Jiejun Xiao

Publication activitypapers/week, last 8 weeks

Research focus

Frequent co-authors

Papers (1)