Author

Da-Wei Zhou

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#artificial intelligence Preprint Sep 2026

ReGDiff: Guided Diffusion in Regulated Latent Space for Exploring Metamaterial Voxel Geometry

Metamaterials are artificially engineered structures whose mechanical and physical behaviors are strongly shaped by geometry rather than composition. Voxel representation provides a unified format for metamaterial geometry generation, as it can express diverse classes such as truss, shell, and porous structures within...

Wang-Zhi Zhan, Jian-Peng Chen, Dong-Qi Fu et al. · 0 citations

#artificial intelligence Preprint Sep 2026

SAGE: Mitigating Long-Horizon Reasoning Biases via Topological Guidance

Long-horizon reasoning remains a central challenge for large language models (LLMs) under sparse-reward regimes. We argue that this brittleness arises from two biases induced by complex reasoning spaces: an exploration bias, where models are drawn toward locally plausible but structurally unstable branches, and a compo...

Xin-Yue Zeng, Jia-Wei Zhang, Yu-Jun Yan et al. · 0 citations

#natural language process... Preprint Sep 2026

When the Wrong Key Wins: Understanding and Detecting Hallucinations in LLMs

Large language models can hallucinate even when the knowledge required for a correct answer is already available. We study this failure through a latent-key view of inference, where answer selection depends on competition among associations acquired during pretraining. We show that model predictions can be highly sensi...

Xu-Han Tong, Hao-Yue Bai, Da-Wei Zhou et al. · 0 citations