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Large-Scale Representation Learning on Graphs via Bootstrapping

ICLR 2022 · Graph learning › Graph self-supervised learning · approach: Semi-supervised node representation learning · 30 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use BGRL instead of GRACE2-layer GCN · Amazon Computersclassification accuracy: 89.53 ± 0.35 -> 90.34 ± 0.19Helped
Use BGRL instead of GRACE2-layer GCN · WikiCSclassification accuracy: 80.14 ± 0.48 -> 79.98 ± 0.10No clear effect
Use BGRL instead of GRACE3-layer GCN · ogbn-arXiv testclassification accuracy: 70.33 ± 0.18 -> 71.64 ± 0.12No clear effect
Use BGRL rather than GRACE with a GAT encoderPPI · PPIMicro-F1: 69.71 ± 0.17 -> 70.49 ± 0.05Helped
Replace standard augmentation with degree-centrality augmentation (ablation)BGRL · Coauthor CSclassification accuracy: 93.31 ± 0.13 -> 93.34 ± 0.13No clear effect
Replace standard augmentation with pagerank-centrality augmentation (ablation)BGRL · Amazon Computersclassification accuracy: 90.34 ± 0.19 -> 90.45 ± 0.25No clear effect
Add a projector network (ablation)BGRL on MAG240M · MAG240Mclassification accuracyHurt
Increase the number of sampled negatives from k=2 to k=8 (ablation)GRACE-SUBSAMPLING · ogbn-arXiv testclassification accuracy: 60.24 ± 4.06 -> 70.33 ± 0.18Helped
Increase the number of sampled negatives from k=8 to k=32 (ablation)GRACE-SUBSAMPLING · ogbn-arXiv testclassification accuracy: 70.33 ± 0.18 -> 71.18 ± 0.16Helped
Add unlabeled nodes to each training minibatch for BGRL representation learning (ablation)Semi-supervised BGRL on MAG240M · MAG240M validationclassification accuracy: +73.89%Helped
Use the same simple augmentations instead of complex adaptive augmentations (ablation)BGRL · Coauthor CS, Coauthor Physics, Amazon Computers, Amazon Photosclassification accuracy: 93.31 ± 0.13 -> 93.34 ± 0.13; 95.73 ± 0.05 -> 95.62 ± 0.09; 90.34 ± 0.19 -> 90.39 ± 0.22; 93.17 ± 0.30 -> 93.15 ± 0.37No clear effect

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