Jianhua Li
2 indexed papers
Recent (6 mo)
2With code
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2026
CoopGuard: Stateful Cooperative Agents Safeguarding LLMs Against Evolving Multi-Round Attacks
CoopGuard is a novel stateful, multi-round defense framework using cooperative agents to significantly reduce the success rate of evolving adversarial attacks against Large Language Models.
Toward Polymorphic Backdoor against Semantic Communication via Intensity-Based Poisoning
The paper proposes SemBugger, a polymorphic backdoor attack that uses intensity-based poisoning to achieve diverse malicious outcomes in Semantic Communication (SC) systems, alongside a provable defense mechanism.
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Papers
cs.CRcs.AIRecentApr 25, 2026
Toward Polymorphic Backdoor against Semantic Communication via Intensity-Based Poisoning
The paper proposes SemBugger, a polymorphic backdoor attack that uses intensity-based poisoning to achieve diverse malicious outcomes in Semantic Communication (SC) systems, alongside a provable defen…
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cs.CRcs.AIRecentApr 5, 2026