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Author:

Zhang, Jinli (Zhang, Jinli.) | Jiang, Zongli (Jiang, Zongli.) (Scholars:蒋宗礼) | Chen, Zheng (Chen, Zheng.) | Hu, Xiaohua (Hu, Xiaohua.)

Indexed by:

EI Scopus SCIE

Abstract:

Network embedding has been an effective tool to analyze heterogeneous networks (HNs) by representing nodes in a low-dimensional space. Although many recent methods have been proposed for representation learning of HNs, there is still much room for improvement. Random walks based methods are currently popular methods to learn network embedding; however, they are random and limited by the length of sampled walks, and have difficulty capturing network structural information. Some recent researches proposed using meta paths to express the sample relationship in HNs. Another popular graph learning model, the graph convolutional network (GCN) is known to be capable of better exploitation of network topology, but the current design of GCN is intended for homogenous networks. This paper proposes a novel combination of meta-graph and graph convolution, the meta-graph based graph convolutional networks (MGCN). To fully capture the complex long semantic information, MGCN utilizes different meta-graphs in HNs. As different meta-graphs express different semantic relationships, MGCN learns the weights of different meta-graphs to make up for the loss of semantics when applying GCN. In addition, we improve the current convolution design by adding node self-significance. To validate our model in learning feature representation, we present comprehensive experiments on four real-world datasets and two representation tasks: classification and link prediction. WMGCN's representations can improve accuracy scores by up to around 10% in comparison to other popular representation learning models. What's more, WMGCN'feature learning outperforms other popular baselines. The experimental results clearly show our model is superior over other state-of-the-art representation learning algorithms.

Keyword:

graph convolutional network Heterogeneous networks Neural networks Heterogeneous network Task analysis Predictive models Semantics representation learning weighted meta-graph Licenses Convolution

Author Community:

  • [ 1 ] [Zhang, Jinli]Beijing Univ Technol, Fac Informat Technol, Beijing 100124, Peoples R China
  • [ 2 ] [Jiang, Zongli]Beijing Univ Technol, Fac Informat Technol, Beijing 100124, Peoples R China
  • [ 3 ] [Chen, Zheng]Drexel Univ, Coll Comp & Informat, Philadelphia, PA 19104 USA
  • [ 4 ] [Hu, Xiaohua]Drexel Univ, Coll Comp & Informat, Philadelphia, PA 19104 USA

Reprint Author's Address:

  • [Zhang, Jinli]Beijing Univ Technol, Fac Informat Technol, Beijing 100124, Peoples R China

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Source :

IEEE ACCESS

ISSN: 2169-3536

Year: 2020

Volume: 8

Page: 40744-40754

3 . 9 0 0

JCR@2022

Cited Count:

WoS CC Cited Count: 4

SCOPUS Cited Count: 6

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 7

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