Author

Changsheng Xu

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Preprint Aug 2026

A Visual Dependence-Aware Framework for Multimodal Unsupervised Continual Post-Training

In this paper, we explore a novel task of Multimodal Unsupervised Continual Post-Training (MU-CPT), enabling deployed MLLMs to continually evolve from streaming unlabeled data. Existing unsupervised post-training methods for MLLMs typically optimize target tokens uniformly, overlooking their heterogeneous visual depend...

Kaichen Li, Zhilin Zhu, Jian-Hao Huang et al. · 0 citations

Jul 2026

VTM-Nav: Harnessing Cross-Episode Experience for Object-Goal Navigation with Hierarchical Visual-Topological Memory

VTM-Nav re-localizes the agent in accumulated scene structure, retrieves target-relevant records from plausible rooms, and grounds memory guidance in candidates derived from the current observation, demonstrating effective reuse of cross-episode scene experience through hierarchical visual-topological memory.

Xiaoran Xu, Yupeng Wu, Tianyue Xue et al. · arXiv.org · 0 citations