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Xin-Zhuo Li

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#artificial intelligence Preprint Oct 2026

SILSA: Sliding-Window Slice Latents for Topology-Preserving High-Resolution 3D Generation

High-resolution 3D generation increasingly relies on voxel latents and multi-stage pipelines that first predict active structure and then synthesize local geometry. While effective, this design fragments continuous surfaces into many local tokens, inflates generation cost, and often weakens topological consistency for...

Tianjiao Yu, Xin-Zhuo Li, Yi-Fan Shen et al. · 0 citations
#artificial intelligence Preprint Sep 2026

STEVE: Stabilizing Textual Gradient-Based Prompt Optimization via Error-Driven Refinement and Regularized Verification

Textual-gradient methods automate prompt optimization through natural-language feedback, but their iterative updates can be unstable. We identify two sources of this instability: noisy gradients produced from already-correct examples and over-specialization to hard cases that degrades performance on simpler inputs. We...

Yi-Fan Xu, Yi-Xuan Li, Xin-Zhuo Li et al. · 0 citations

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