Author

Si-Tong Wei

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Preprint Oct 2026

Octrees as an Explicit 3D Language

Existing 3D large language models (LLMs) compromise on two fronts: they compress shapes into latent codebook indices or coordinate text, which removes spatial structure from what the model observes, and they acquire the 3D modality by fine-tuning the backbone, which overwrites its general language ability. We present O...

Ran Dan, Si-Tong Wei, Peng-Fei Xiong et al. · 0 citations

Preprint Aug 2026

ReCache: Efficient KV Cache Reuse and Compression for Tool-Augmented LLM Agents

Results show that separating reusable schema encoding from selective resource access substantially reduces agentic inference costs with limited effectiveness loss.

Yichu Fang, Si-Tong Wei, Hao-Zhe Hu et al. · 3 citations

Preprint Aug 2026

aDSL: Agentic 3D Creation via Joint Agent-Program Design

An Agent-centric Domain-Specific Language (aDSL) and a role-specialized multi-agent system to close the gap between programmatic interfaces and reasoning strengths of LLMs, which favor semantic structure and spatial relations over fragile numeric choices.

Rui-Huan Wang, Si-Tong Wei, Jia-Qi He et al. · 2 citations