Author

Wei Wei

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#artificial intelligence Preprint Sep 2026

GroundingPI: A Grounding Foundation Model towards Physical Intelligence with Visual Primitives

Precise grounding matters. It specifies which object is the target and where that object is, even in clutter and for tiny objects, and it has to be fast enough for closed-loop control. Yet vision-language-action (VLA) and world-action models (WAMs) take perception from general-purpose vision-language and video-generati...

Qi-Ze Yu, Lian-Rui Fan, Bo-Yu Chen et al. · 0 citations

Conference Open access Sep 2026

RIVS: Mitigating Hallucination in Large Vision-Language Models via Representation Intervention on Visual Grounding Shift

This work studies hallucination from the perspective of dynamic representation shift during generation and proposes an online projection-based intervention on intermediate hidden states to suppress the hallucination-related directions, mitigating hallucinations while preserving language quality.

Xuan-Yu Yin, Xiao-Ye Qu, Wei Wei · Proceedings of the Thirty-Fi... · 0 citations