Author

Haiyang Xu

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Preprint Aug 2026

Hyper^2: Unleashing Hyperbolic Geometry's Full Potential via Dual-Space Consistency

Hyper^2 is proposed, a dual-space consistency framework that extends HyperbolicCD by reusing the identical arcosh(1+alpha d^2) functional form as a positional bias on the refinement attention (a hyperbolic distance encoding), paired with HyperbolicCD's hyperbolic Chamfer loss under a single shared curvature alpha.

Guan-Tian Zheng, Hai-Yang Xu, Tian-Yu Gao · 0 citations

Preprint Aug 2026

RECAP-Forcing: Retaining Content Appearances for Long Video Generation

This work proposes RECAP-Forcing, a training-free inference method with no additional learnable parameters that consistently improves visual quality and semantic fidelity across multiple strong baselines and outperforms existing memory methods.

Hai-Yang Xu, Zheng Ding, Zhuo-Wen Tu · 2 citations