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Simple and Deep Graph Convolutional Networks

ICML 2020 · Graph learning › GNN architectures · approach: Deep graph convolution and simplification · 385 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use a deep GCNII with initial residual and identity mapping instead of the strongest reported baselineGCN on Cora · Cora (semi-supervised)accuracy: 83.5 -> 85.5 ± 0.5Helped
Use a deep GCNII with initial residual and identity mapping instead of the strongest reported baselineGCN on Citeseer · Citeseer (semi-supervised)accuracy: 72.7 -> 73.4 ± 0.6Helped
Use GCNII* rather than the strongest baselineNode classification · Pubmed (semi-supervised)accuracy: 80.1 -> 80.3 ± 0.4Helped
Use GCNII* rather than the strongest baselineInductive node classification · PPIMicro-averaged F1: 99.36 -> 99.56 ± 0.02Helped
Add the separate-weight GCNII* variantGCNII · Wisconsin (full-supervised)accuracy: 74.12 (16) -> 81.57 (16)Helped
Add the separate-weight GCNII* variantGCNII · Citeseer (full-supervised)accuracy: 77.08 (64) -> 77.13 (64)Mixed
Increase depth while retaining initial residual and identity mappingGCNII · Cora (semi-supervised)accuracy: 82.2 -> 85.5Helped
Increase depth while retaining initial residual and identity mappingGCNII · Pubmed (semi-supervised)accuracy: 80.2 (16 layers) -> 79.7 (64 layers)Mixed
Add identity mapping to vanilla GCN (ablation)Vanilla GCN · Semi-supervised node classificationaccuracyNo clear effect
Add an initial residual connection from the input layer (ablation)Vanilla GCN · Semi-supervised node classificationaccuracyHelped
Add identity mapping alongside the initial residual connection (ablation)GCN with initial residual · Semi-supervised node classificationaccuracyHelped
Use initial residual and identity mapping together rather than either technique alone (ablation)GCNII · Semi-supervised node classificationaccuracyHelped

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