Computer Science > Machine Learning
arXiv:2311.02832 (cs)
[Submitted on 6 Nov 2023]
Title:Prioritized Propagation in Graph Neural Networks
View a PDF of the paper titled Prioritized Propagation in Graph Neural Networks, by Yao Cheng and Minjie Chen and Xiang Li and Caihua Shan and Ming Gao
View PDFAbstract:Graph neural networks (GNNs) have recently received significant attention. Learning node-wise message propagation in GNNs aims to set personalized propagation steps for different nodes in the graph. Despite the success, existing methods ignore node priority that can be reflected by node influence and heterophily. In this paper, we propose a versatile framework PPro, which can be integrated with most existing GNN models and aim to learn prioritized node-wise message propagation in GNNs. Specifically, the framework consists of three components: a backbone GNN model, a propagation controller to determine the optimal propagation steps for nodes, and a weight controller to compute the priority scores for nodes. We design a mutually enhanced mechanism to compute node priority, optimal propagation step and label prediction. We also propose an alternative optimization strategy to learn the parameters in the backbone GNN model and two parametric controllers. We conduct extensive experiments to compare our framework with other 11 state-of-the-art competitors on 8 benchmark datasets. Experimental results show that our framework can lead to superior performance in terms of propagation strategies and node representations.
| Subjects: | Machine Learning (cs.LG) |
| Cite as: | arXiv:2311.02832 [cs.LG] |
| (orarXiv:2311.02832v1 [cs.LG] for this version) | |
| https://doi.org/10.48550/arXiv.2311.02832 arXiv-issued DOI via DataCite |
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View a PDF of the paper titled Prioritized Propagation in Graph Neural Networks, by Yao Cheng and Minjie Chen and Xiang Li and Caihua Shan and Ming Gao
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