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Guo-Rui Song

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#artificial intelligence Preprint Sep 2026

VGGT-Diff: Visual Geometry Meets Diffusion for Sparse-View Novel View Synthesis

We present VGGT-Diff, a geometry-routed multi-view diffusion model for sparse-view novel view synthesis. Existing novel view synthesis (NVS) methods face a fundamental trade-off: reconstruction-based approaches preserve observed geometry but struggle to synthesize unseen regions, while diffusion-based methods provide s...

Kang-Jie Chen, Xiang-Yu Li, Dong-Bin Zhang et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Open-UniMo: Towards Unified Motion-Language Understanding and Generation in the Open World

Unified motion generation and understanding is crucial for embodied AI systems that can both synthesize and interpret human actions in open-world environments. Existing motion-language models often treat motion as an auxiliary modality of a language model, leading to text-dominated representations and limited cross-mod...

Guo-Cun Wang, Kenkun Liu, Guo-Rui Song et al. · 0 citations
Preprint Sep 2026

DIVA: Exploiting Cross-Step Conditional Propagation for Visual Jailbreaks in Discrete Diffusion Vision-Language Models

Large vision-language models (VLMs) are increasingly deployed in safety-critical settings, yet existing visual jailbreak research has focused almost exclusively on autoregressive architectures, leaving an important emerging family unstudied: multimodal discrete diffusion vision-language models (dVLMs). We identify a vu...

Guo-Rui Song, Run-Qing Tang, Jing-Ye Zhang et al. · 0 citations
#machine learning Preprint Aug 2026

OraclePhys: A Systematic Framework for LLM Fine-Tuning on Structural Mechanics

The study yields two findings: first, the label's answer form -- not its bit count -- causally determines what fine-tuning teaches: a ranking objective installs an out-of-distribution forward model where the untrained base sits at the guessing prior.

Mingyu Li, Guorui Song, Jing Lin et al. · 0 citations

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