Author

Zhong-Xiang Sun

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#artificial intelligence Preprint Oct 2026

What Did the Agent Actually Do? Evidence-Grounded Oversight for Long-Horizon Agents

As agents take on long-horizon tasks, users shift from making individual decisions to overseeing autonomous execution. Yet the volume of agent activity and the fragmentation of supporting evidence make it difficult to determine which decisions warrant user verification. We study monitors that identify consequential dec...

Zhong-Xiang Sun, Jia-Hao Yan, Hong-Kang Zhao et al. · 0 citations

#artificial intelligence Preprint Sep 2026

Key Path Identification for Resolving Knowledge Conflicts via SAE-based Steering

Sparse autoencoder (SAE)-based steering has been widely used to address knowledge conflicts by guiding LLMs to be more faithful to the contextual knowledge. Existing methods usually perform mass steering, which modifies a large batch of SAE features identified via correlation-based methods. However, due to the inaccura...

Wen-Bo Zhang, Zhong-Xiang Sun, Zhi-Guang Han et al. · 0 citations