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arXiv 2204.12802cs.LGcs.AI
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GTNet:一个基于树的深度图学习架构

GTNet: A Tree-Based Deep Graph Learning Architecture

Institute for Financial Services Analytics, University of Delaware(特拉华大学金融服务分析研究所)

Nan Wu, Chaofan Wang

摘要:

我们提出了图树网络(GTNets),这是一种深度图学习架构,具有一种新的通用消息传递方案,该方案源于图的树表示。在树表示中,消息从叶节点向上传播到根结点,并且每个节点在从其子节点(邻居)接收信息之前保留其初始信息。我们根据树中消息传递的性质制定了一个通用传播规则,通过聚合节点的初始特征及其邻居节点的更新特征来更新节点的特征。在这个GTNet架构中提出了两个图表示学习模型--图树注意力网络(GTAN)和图树卷积网络(GTCN),在几个流行的基准数据集上实验证明了最先进的性能。与具有“过平滑”问题的普通图注意力网络(GAT)和图卷积网络(GCN)不同,所提出的GTAN和GTCN模型可以通过全面的实验和严格的理论分析来证明。

英文摘要:

We propose Graph Tree Networks (GTNets), a deep graph learning architecture with a new general message passing scheme that originates from the tree representation of graphs. In the tree representation, messages propagate upward from the leaf nodes to the root node, and each node preserves its initial information prior to receiving information from its child nodes (neighbors). We formulate a general propagation rule following the nature of message passing in the tree to update a node's feature by aggregating its initial feature and its neighbor nodes' updated features. Two graph representation learning models are proposed within this GTNet architecture - Graph Tree Attention Network (GTAN) and Graph Tree Convolution Network (GTCN), with experimentally demonstrated state-of-the-art performance on several popular benchmark datasets. Unlike the vanilla Graph Attention Network (GAT) and Graph Convolution Network (GCN) which have the "over-smoothing" issue, the proposed GTAN and GTCN models can go deep as demonstrated by comprehensive experiments and rigorous theoretical analysis.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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