Zhang, L., Song, H., Aletras, N. orcid.org/0000-0003-4285-1965 et al. (1 more author) (2022) Node-feature convolution for graph convolutional networks. Pattern Recognition, 128. 108661. ISSN 0031-3203
Abstract
Graph convolutional network (GCN) is an effective neural network model for graph representation learning. However, standard GCN suffers from three main limitations: (1) most real-world graphs have no regular connectivity and node degrees can range from one to hundreds or thousands, (2) neighboring nodes are aggregated with fixed weights, and (3) node features within a node feature vector are considered equally important. Several extensions have been proposed to tackle the limitations respectively. This paper focuses on tackling all the proposed limitations. Specifically, we propose a new node-feature convolutional (NFC) layer for GCN. The NFC layer first constructs a feature map using features selected and ordered from a fixed number of neighbors. It then performs a convolution operation on this feature map to learn the node representation. In this way, we can learn the usefulness of both individual nodes and individual features from a fixed-size neighborhood. Experiments on three benchmark datasets show that NFC-GCN consistently outperforms state-of-the-art methods in node classification.
Metadata
Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/) | ||||
Keywords: | Graph; Representation learning; Graph convolutional networks; Convolutional neural networks | ||||
Dates: |
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Institution: | The University of Sheffield | ||||
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Computer Science (Sheffield) | ||||
Funding Information: |
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Depositing User: | Symplectic Sheffield | ||||
Date Deposited: | 07 Apr 2022 13:27 | ||||
Last Modified: | 20 Apr 2022 09:22 | ||||
Status: | Published | ||||
Publisher: | Elsevier BV | ||||
Refereed: | Yes | ||||
Identification Number: | https://doi.org/10.1016/j.patcog.2022.108661 |