Papers › Stochastic Training of Graph Convolutional Networks with Variance Reduction

Stochastic Training of Graph Convolutional Networks with Variance Reduction

29 Oct 2017ICML 2018 7arXiv:1710.10568archive 2025-07-28

Jianfei Chen, Jun Zhu, Le Song

Graph convolutional networks (GCNs) are powerful deep neural networks for graph-structured data. However, GCN computes the representation of a node recursively from its neighbors, making the receptive field size grow exponentially with the number of layers. Previous attempts on reducing the receptive field size by subsampling neighbors do not have a convergence guarantee, and their receptive field size per node is still in the order of hundreds. In this paper, we develop control variate based algorithms which allow sampling an arbitrarily small neighbor size. Furthermore, we prove new theoretical guarantee for our algorithms to converge to a local optimum of GCN. Empirical results show that our algorithms enjoy a similar convergence with the exact algorithm using only two neighbors per node. The runtime of our algorithms on a large Reddit dataset is only one seventh of previous neighbor sampling algorithms.

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Methods

Introduced by this paper: StoGCN

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