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Star Topology Convolution for Graph Representation Learning

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posted on 02.11.2020, 21:24 by Chong Wu, Zhenan Feng, Jiangbin Zheng, Houwang Zhang, Jiawang Cao, Hong YAN

We present a novel graph convolutional method called star topology convolution (STC). This method makes graph convolution more similar to conventional convolutional neural networks (CNNs) in Euclidean feature space. Unlike most existing spectral convolutional methods, this method learns subgraphs which have a star topology rather than a fixed graph. It has fewer parameters in its convolutional filter and is inductive so that it is more flexible and can be applied to large and evolving graphs. As for CNNs in Euclidean feature space, the convolutional filter is localized and maintains a good weight sharing property. By introducing deep layers, the method can learn global features like a CNN. To validate the method, STC was compared to state-of-the-art spectral convolutional and spatial convolutional methods in a supervised learning setting on three benchmark datasets: Cora, Citeseer and Pubmed. The experimental results show that STC outperforms the other methods. STC was also applied to protein identification tasks and outperformed traditional and advanced protein identification methods.

Funding

Hong Kong Research Grants Council (Project 11200818)

City University of Hong Kong (Project 9610460)

History

Email Address of Submitting Author

chongwu2-c@my.cityu.edu.hk

ORCID of Submitting Author

0000-0003-3405-742X

Submitting Author's Institution

Department of Electrical Engineering, City University of Hong Kong

Submitting Author's Country

China

Licence

Exports