HyperGCL: Multi-Modal Graph Contrastive Learning via Learnable Hypergraph Views

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Hauptverfasser: Saifuddin, Khaled Mohammed, Ji, Shihao, Akbas, Esra
Format: Preprint
Veröffentlicht: 2025
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author Saifuddin, Khaled Mohammed
Ji, Shihao
Akbas, Esra
author_facet Saifuddin, Khaled Mohammed
Ji, Shihao
Akbas, Esra
contents Recent advancements in Graph Contrastive Learning (GCL) have demonstrated remarkable effectiveness in improving graph representations. However, relying on predefined augmentations (e.g., node dropping, edge perturbation, attribute masking) may result in the loss of task-relevant information and a lack of adaptability to diverse input data. Furthermore, the selection of negative samples remains rarely explored. In this paper, we introduce HyperGCL, a novel multimodal GCL framework from a hypergraph perspective. HyperGCL constructs three distinct hypergraph views by jointly utilizing the input graph's structure and attributes, enabling a comprehensive integration of multiple modalities in contrastive learning. A learnable adaptive topology augmentation technique enhances these views by preserving important relations and filtering out noise. View-specific encoders capture essential characteristics from each view, while a network-aware contrastive loss leverages the underlying topology to define positive and negative samples effectively. Extensive experiments on benchmark datasets demonstrate that HyperGCL achieves state-of-the-art node classification performance.
format Preprint
id arxiv_https___arxiv_org_abs_2502_13277
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle HyperGCL: Multi-Modal Graph Contrastive Learning via Learnable Hypergraph Views
Saifuddin, Khaled Mohammed
Ji, Shihao
Akbas, Esra
Machine Learning
Artificial Intelligence
Recent advancements in Graph Contrastive Learning (GCL) have demonstrated remarkable effectiveness in improving graph representations. However, relying on predefined augmentations (e.g., node dropping, edge perturbation, attribute masking) may result in the loss of task-relevant information and a lack of adaptability to diverse input data. Furthermore, the selection of negative samples remains rarely explored. In this paper, we introduce HyperGCL, a novel multimodal GCL framework from a hypergraph perspective. HyperGCL constructs three distinct hypergraph views by jointly utilizing the input graph's structure and attributes, enabling a comprehensive integration of multiple modalities in contrastive learning. A learnable adaptive topology augmentation technique enhances these views by preserving important relations and filtering out noise. View-specific encoders capture essential characteristics from each view, while a network-aware contrastive loss leverages the underlying topology to define positive and negative samples effectively. Extensive experiments on benchmark datasets demonstrate that HyperGCL achieves state-of-the-art node classification performance.
title HyperGCL: Multi-Modal Graph Contrastive Learning via Learnable Hypergraph Views
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2502.13277