Author

Yuyang Luo

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Preprint Aug 2026

Anchoring Bias: A Persistent Fairness Backdoor Attack against MLLMs under Continual Learning

Multimodal Large Language Models (MLLMs) are increasingly deployed in high-stakes domains where fairness is a critical safety requirement. In practice, these models are continually updated through continual learning (CL) to adapt to evolving tasks and data distributions. Prior work has shown that backdoor attacks can m...

Yuyang Luo, Kai Shu · 0 citations

Preprint Aug 2026

Query-Only Backdoor Attacks on Self-Evolving Skills via Trajectory Poisoning

Agentic skills improve large language model (LLM) agents by encoding reusable procedures for complex tasks. However, manually authored skills often adapt poorly to long-horizon tasks and changing environments. To address the limitation, self-evolving skill systems have been developed to automatically construct and upda...

Yuyang Luo, Haoran Wang, Kai Shu · 0 citations