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Label Efficient Semi-Supervised Learning via Graph Filtering

CVPR 2019 · Graph learning › Graph self-supervised learning · approach: Heterophily and imbalance on graphs · 173 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use filtered features and a supervised classifier (GLP) instead of feature-only MLPCora, 4 labels per class · Cora, 4 labels per classaccuracy: 36.4 -> 68.0Helped
Use filtered features and a supervised classifier (GLP) instead of feature-only MLPCiteSeer, 4 labels per class · CiteSeer, 4 labels per classaccuracy: 38.0 -> 57.3Helped
Use IGCN with an adjustable graph filter instead of GCNCora, 4 labels per class · Cora, 4 labels per classaccuracy: 65.2 -> 70.3Helped
Use IGCN with an adjustable graph filter instead of GCNNELL, 1% label rate · NELL, 1% label rateaccuracy: 63.9 -> 76.7Helped
Increase IGCN RNM filter exponent from k=1 to k=2 (ablation)IGCN(RNM) · AWA2, unseen classesaccuracy: 77.9 -> 77.7Hurt
Increase IGCN RNM filter exponent from k=1 to k=3 (ablation)IGCN(RNM) · AWA2, unseen classesaccuracy: 77.9 -> 73.1Hurt
Increase GLP RNM filter exponent from k=2 to k=4 (ablation)GLP(RNM) · AWA2, unseen classesaccuracy: 76.0 -> 75.0Hurt
Increase GLP RNM filter exponent from k=2 to k=6 (ablation)GLP(RNM) · AWA2, unseen classesaccuracy: 76.0 -> 73.0Hurt
Replace the 6-layer GCN with a 2-layer IGCN using k=3GCNZ · AWA2, unseen classesaccuracy: 68.0 -> 73.1Helped

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