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Zi-Heng Chen

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#machine learning Preprint Oct 2026

Constant-Curvature Sliced Gromov-Wasserstein for Heterogeneous Cross-Curvature Alignment

Recent advances in representation learning have highlighted the utility of constant-curvature models, such as hyperbolic and spherical spaces, for modeling complex data. Mixed-curvature models further enhance this by integrating multiple constant-curvature components. However, these models typically learn each componen...

Shang-Lin Li, Wen-Jing Lu, Mu-Yang Li et al. · 0 citations
Conference Open access Sep 2026

Riemannian Graph Convolutional Network for Skeleton-Based Two-Person Interaction Recognition

This work model high-order skeletal statistics via Gaussian embedding and propose a Riemannian network to capture inter-subject interactions and global correlations and shows that RGCN provides a competitive and geometrically grounded alternative for skeleton-based interaction recognition.

Rui Wang, Zi-Hao Bi, Chen Hu et al. · 0 citations

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