arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2106.01583cs.LG
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基于部分对齐图卷积网络的跨网络学习

Cross-Network Learning with Partially Aligned Graph Convolutional Networks

University of Notre Dame(圣母大学)

Meng Jiang

摘要:

图神经网络已被广泛用于学习图数据上的许多下游任务的节点表示。现有模型是为单个图上的节点设计的,这将无法利用多个图上的信息。现实世界确实有多个图,其中节点通常是部分对齐的。例如,知识图谱共享许多命名实体,尽管它们可能具有不同的关系模式;关于出版物和获奖项目的协作网络共享一些分别是作者和调查者的研究者节点;人们使用多个Web服务,购物,发推文,评价电影,并且一些人可能在平台上注册相同的电子邮件帐户。在本文中,我提出了部分对齐的图卷积网络来学习跨模型的节点表示。我研究了多种方法(包括模型共享,正则化和对齐重建)以及理论分析,以在部分对齐的(小)节点集上积极地传递知识。在真实世界的知识图谱和协作网络上的实验表明,我们提出的方法在关系分类和链接预测方面具有优越的性能。

英文摘要:

Graph neural networks have been widely used for learning representations of nodes for many downstream tasks on graph data. Existing models were designed for the nodes on a single graph, which would not be able to utilize information across multiple graphs. The real world does have multiple graphs where the nodes are often partially aligned. For examples, knowledge graphs share a number of named entities though they may have different relation schema; collaboration networks on publications and awarded projects share some researcher nodes who are authors and investigators, respectively; people use multiple web services, shopping, tweeting, rating movies, and some may register the same email account across the platforms. In this paper, I propose partially aligned graph convolutional networks to learn node representations across the models. I investigate multiple methods (including model sharing, regularization, and alignment reconstruction) as well as theoretical analysis to positively transfer knowledge across the (small) set of partially aligned nodes. Extensive experiments on real-world knowledge graphs and collaboration networks show the superior performance of our proposed methods on relation classification and link prediction.

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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