Author

Xingqin Qi

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Preprint Sep 2026

Edge-centric Brain Transformer: An Edge-centric Functional Connectivity Learning Framework for fMRI-based Brain Disorder Diagnosis

Resting-state functional magnetic resonance imaging (rs-fMRI) enables the characterization of functional interactions among distributed brain regions and has shown promise for brain disorder diagnosis. However, existing deep learning methods predominantly rely on node-centric representations, where brain regions serve...

Deng-Yi Zhao, Zhi-Heng Zhou, Meng-Yao Zhou et al. · 0 citations

Jul 2026

From Diffusion to Reaction-Diffusion: A Dynamical-Systems View of Oversmoothing in Hypergraph Neural Networks

This work investigates hypergraph oversmoothing from a dynamical-systems perspective and develops a reaction--diffusion framework for depth-resistant hypergraph learning, which introduces a reaction mechanism acting on the transverse component to compensate diffusion-induced dissipation and stabilize discriminative var...

Zhi-Heng Zhou, Meng-Yao Zhou, Yan-Cheng Chen et al. · arXiv.org · 0 citations

Aug 2026

Measuring the higher-order homophily in a general social hypergraph.

A new descriptive homophily measure for general social hypergraphs where group interactions involve arbitrary number of individuals is proposed, and constraints of monotonic and majority homophily for two-class labels are established, providing a framework for analyzing homophily patterns.

Yunping Wang, Zhiheng Zhou, Mingwei Li et al. · Chaos · 0 citations