Author

Ivan Viola

2 papers indexed here

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Preprint Sep 2026

NormLift: From Lifted Features To Semantic Reliability In 3D Gaussian Splatting

Training-free weighted aggregation is widely used to lift 2D semantic features onto 3D Gaussians for open-vocabulary scene understanding, yet its theoretical role remains insufficiently understood. Existing analyses typically justify this operation from the rendering side, treating Gaussian features as linearly composa...

Yi-Han Zang, Da Li, D. Engel et al. · 0 citations

Jul 2026

Hybrid Advantage Estimation with Unified Critic for VLM Agentic Reinforcement Learning

Large Vision-Language Models (VLMs) now act as agents in interactive environments, where success requires coherent reasoning and decision-making across turns. Although end-to-end training in agentic environments can improve such multi-turn decision-making abilities, current methods mainly rely on either token-wise opti...

Wenxuan Zhang, Yu-Hui Wang, Donggang Jia et al. · arXiv.org · 0 citations