Function Space Pooling For Graph Convolutional Networks

Padraig Corcoran

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arXiv · 1905.06259

Function Space Pooling For Graph Convolutional Networks

Padraig Corcoran

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Abstract

Convolutional layers in graph neural networks are a fundamental type of layer which output a representation or embedding of each graph vertex. The representation typically encodes information about the vertex in question and its neighbourhood. If one wishes to perform a graph centric task, such as graph classification, this set of vertex representations must be integrated or pooled to form a graph representation. In this article we propose a novel pooling method which maps a set of vertex representations to a function space representation. This method is distinct from existing pooling methods which perform a mapping to either a vector or sequence space. Experimental graph classification results demonstrate that the proposed method generally outperforms most baseline pooling methods and in some cases achieves best performance.

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Padraig Corcoran. 2019-05-15. Function Space Pooling For Graph Convolutional Networks. https://arxiv.org/abs/1905.06259

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