Heterogeneous graph convolutional networks have gained great popularity in tackling various network analytical tasks on heterogeneous network data, ranging from link prediction to node classification. However, most existing works ignore the relation heterogeneity with multiplex network between multi-typed nodes and different importance of relations in meta-paths for node embedding, which can hardly capture the heterogeneous structure signals across different relations. To tackle this challenge, this work proposes a Multiplex Heterogeneous Graph Convolutional Network (MHGCN) for heterogeneous network embedding. Our MHGCN can automatically learn the useful heterogeneous meta-path interactions of different lengths in multiplex heterogeneous networks through multi-layer convolution aggregation. Additionally, we effectively integrate both multi-relation structural signals and attribute semantics into the learned node embeddings with both unsupervised and semi-supervised learning paradigms. Extensive experiments on five real-world datasets with various network analytical tasks demonstrate the significant superiority of MHGCN against state-of-the-art embedding baselines in terms of all evaluation metrics.

本研究提出了一种多重异构图卷积网络（Multiplex Heterogeneous Graph Convolutional Network，MHGCN），可以通过多层卷积聚合自动学习多重异构网络中不同长度的有用异构元路径交互，并有效地将多关系结构信号和属性语义集成到有监督和半监督学习范式中的学习节点嵌入中，实验证明其在各种网络分析任务中显著优于现有的嵌入基线。

多路异构图卷积网络