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Guangdong University of Foreign Studies

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Representative Papers

BrainLinear: A Linear Model for Brain Network Analysis in Sparse Tangent Subspaces

Aug 15, 2026

This study addresses model redundancy and the lack of connection-level interpretability in brain functional connectivity analysis by proposing a geometry-aware framework. By mapping connectivity matrices onto the tangent space of the Fréchet mean and selecting critical directions, the method employs a lightweight MLP for efficient classification. Empirical results demonstrate that sparse linear modeling within the tangent subspace effectively replaces complex interactions, significantly improving AUC and ACC while reducing runtime and GPU memory usage by 84% and 68.4%, respectively. By balancing high diagnostic performance with biological interpretability, this approach establishes an efficient paradigm for brain disease diagnosis.

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Latest Papers

BrainLinear: A Linear Model for Brain Network Analysis in Sparse Tangent Subspaces

Aug 15, 2026

This study addresses model redundancy and the lack of connection-level interpretability in brain functional connectivity analysis by proposing a geometry-aware framework. By mapping connectivity matrices onto the tangent space of the Fréchet mean and selecting critical directions, the method employs a lightweight MLP for efficient classification. Empirical results demonstrate that sparse linear modeling within the tangent subspace effectively replaces complex interactions, significantly improving AUC and ACC while reducing runtime and GPU memory usage by 84% and 68.4%, respectively. By balancing high diagnostic performance with biological interpretability, this approach establishes an efficient paradigm for brain disease diagnosis.

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