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Ziyi Ma

8 accepted papers

2026

A Pure Hierarchical Spectral Parcellation Network for Brain Network Analysis

ICML 2026poster

Brain network classification is pivotal for diagnosing neurological disorders, yet clinical interpretability and the identification of discriminative biomarkers fundamentally rely on precise functional parcellation. However, existing graph learning models for brain network analysis typically suffer …

Cited by 0SourceScholar
2026

End-to-end Graph-structured Brain Representation Learning

ICML 2026poster

The construction of the brain functional network often follows the hand-crafted Correlation Coefficients of blood-oxygen-level-dependent (BOLD) time series without any learnable components. Meanwhile, most efforts are made to the models, such as graph neural networks, that make predictions with the …

Cited by 0SourceScholar
2026

Improving Graph Transformers via Global Structural Priors

ICML 2026poster

By synergizing graph topology with the global expressive power of the attention mechanism, Graph Transformers (GTs) have emerged as a dominant architecture for node classification. However, existing models primarily focus on diverse topology injection mechanisms, specifically score-level and represe…

Cited by 0SourceScholar
2026

Source-Free Graph Foundation Model Adaptation via Pseudo-Source Reconstruction

AAAI 2026technical

Aiming to overcome distribution shift and label sparsity that hinder cross-domain generalization of Graph Neural Networks (GNNs), Unsupervised Graph Domain Adaptation (UGDA) transfers knowledge from a label-rich source to an unlabeled target graph. Yet in practice, strict privacy protocols often wit

Cited by 0SourcePDFScholar
2025

A Closer Look at Graph Transformers: Cross-Aggregation and Beyond

NeurIPS 2025spotlight

Graph Transformers (GTs), which effectively capture long-range dependencies and structural biases simultaneously, have recently emerged as promising alternatives to traditional Graph Neural Networks (GNNs). Advanced approaches for GTs to leverage topology information involve integrating GNN modules…

Cited by 0SourceScholar
2025

Graph Contrastive Learning with Joint Spectral Augmentation of Attribute and Topology

AAAI 2025technical

As an essential technique for Graph Contrastive Learning (GCL), Graph Augmentation (GA) improves the generalization capability of the GCLs by introducing different forms of the same graph. To ensure information integrity, existing GA strategies have been designed to simultaneously process the two ty…

Cited by 0SourcePDFScholar