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Author

Han Fang

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#artificial intelligence Preprint Oct 2026

MeSD: Multi-Evidence Self-Distillation for VideoLLM

While reinforcement learning with verifiable rewards provides reliable outcome supervision for VideoLLMs, sequence-level rewards offer limited token-level guidance. On-policy self-distillation addresses this limitation by conditioning a self-teacher on privileged information to provide dense token-level supervision. Ho...

Wei-Jie Zhu, Han Fang, Han-Yun Fu et al. · 0 citations
Jul 2026

GeoAnchor: Collaborative Reasoning via Latent Decomposition for 3D Spatial Understanding

GeoAnchor decomposes 3D spatial information into three complementary components: position latents for object grounding, direction latents for relational orientation, and geometry latents for scene structure, and is introduced a collaborative training strategy that guides the model from local spatial perception to compr...

Hao Li, Han Fang, Zixin Pan et al. · 0 citations
Jul 2026

Mixture-of-Thought-Tokens: Unifying Perception and Reasoning for Free-form Multimodal Grounding

This work introduces Spatially-Grounded Thought Tokenization to explicitly align special tokens with spatial locations for clear spatial correspondence and visual interpretability, and proposes Mixture-of-Thought-Tokens, a new free-form multimodal grounding method that bridges the perception-reasoning gap.

Tianyi Gao, Han Fang, Tianyi Ding et al. · 0 citations

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