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Zhi-Bo Zhang

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Preprint Aug 2026

TRUSS: Towards Task-Reliable and User-Safe Automated Agent Skill Generation

Results show that execution evidence can expose behavioral failures missed by artifact inspection and can guide Skill generation toward jointly verified functional and safety outcomes.

Zhi-Bo Zhang, Zheng-Mao Ouyang, Ling Shi et al. · 0 citations
Preprint Aug 2026

RARE: Decoupling Representation Steering from Expert Routing in Mixture-of-Experts Language Models

It is found that preserving clean routing substantially recovers steering performance and that routing is more sensitive to semantic content than to behavioral changes under controlled content, which supports routing consistency as an important architectural consideration for adapting representation engineering to MoE models.

Zhi-Bo Zhang, Zheng-Mao Ouyang, Ling Shi et al. · 0 citations
Jul 2026

Defense Against LLM Backdoors using Critical Neuron Isolation Pruning

DeCNIP (Defense with Critical Neuron Isolation Pruning), which leverages representational analysis to identify and neutralize backdoors in a unified pipeline, is introduced, which achieves over 95% relative reduction in Attack Success Rate (ASR), outperforming seven state-of-the-art defenses with only 0.1% neuron intervention.

Yuxi Li, Zhi-Bo Zhang, Kailong Wang et al. · 0 citations

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