Authors

Ziqi Wang

Publications 2

Preprint Open access

Nullify: Null-Space Activation Steering for Training-Free LLM Unlearning

Wei Zhai, Xiang Liu, Qiang Huang et al. · 2026

Large Language Models (LLMs) inevitably internalize substantial amounts of sensitive or private information during pre-training, while LLM unlearning aims to selectively erase specific knowledge to prevent privacy leakage with minimal loss of model utility. However, existing methods struggle to balance forget quality w …

Preprint Open access

SARI: Phase-Split Sim-Real Co-Training for Contact-Rich Manipulation

Xingxin He, Yuxuan Jiang, Haonan Zhang et al. · 2026

Vision-language-action (VLA) models often require costly real-world demonstrations to adapt to contact-rich manipulation tasks, particularly when generalization across object placements is needed. We propose SARI (Simulated Approach, Real Interaction), a phase-split sim-and-real co-training framework built on a simple …

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