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Graph-less Neural Networks: Teaching Old MLPs New Tricks Via Distillation

ICLR 2022 · Graph learning › GNN architectures · approach: Simple and scalable GNNs · 43 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Distill GraphSAGE predictions into an MLPMLP node classifier · CPF datasets, transductiveaccuracy: 21.32 (36.00%) on Cora; 12.16 (20.40%) on Citeseer; 7.87 (11.65%) on Pubmed; 15.23 (22.46%) on A-computer; 13.34 (16.94%Helped
Distill GraphSAGE predictions into an MLPMLP node classifier · Arxiv and Products, transductiveaccuracy: 7.41 (13.24%) on Arxiv; 6.39 (10.23%) on ProductsHelped
Distill GraphSAGE predictions into an MLPMLP node classifier · Arxiv and Products, transductiveaccuracy: -7.46 (-10.52%) on Arxiv; -9.75 (-12.4%) on ProductsHurt
Use a wider distilled MLP (ablation)GLNN · Arxiv and Products, transductiveaccuracy: Arxiv: 63.46 $\pm$ 0.45 -> 72.15 $\pm$ 0.27; Products: 68.86 $\pm$ 0.46 -> 77.65 $\pm$ 0.48Helped
Replace GraphSAGE teacher with MLP+C&S (ablation)GLNN+ · Productsaccuracy: 77.65 -> 82.94Helped
Add one-hop neighbor feature augmentation (ablation)GLNN · Arxiv inductiveaccuracy: 60.48 -> 68.83Helped
Add one-hop neighbor feature augmentation (ablation)MLP · Arxiv inductiveaccuracy: 55.40 -> 66.62Helped
Increase Gaussian noise in node features (ablation)GLNN · CPF datasets, inductiveaccuracyHurt
Increase the inductive share of the evaluation split (ablation)GLNN · Production setting across CPF datasetsaccuracyHurt
Use GCN, GAT, or APPNP instead of GraphSAGE as teacher (ablation)GLNN · CPF datasetsaccuracyNo clear effect
Use APPNP instead of GraphSAGE as teacher (ablation)GLNN · CPF datasetsaccuracyHurt
Set the hard-label loss weight to a nonzero value (ablation)GLNN distillation objective · Node classification experimentsaccuracyNo clear effect

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