Node classification — assigning labels to vertices in a graph using both node features and neighborhood structure — is the flagship task for Graph Neural Networks. GCN (Kipf & Welling, 2017) established the Cora/Citeseer/PubMed benchmark trinity, but these datasets are tiny by modern standards and results have saturated well above 85% accuracy. The field has moved toward large-scale heterogeneous graphs (ogbn-arxiv, ogbn-products from OGB) and the unsettled debate over whether simple MLPs with neighborhood features can match GNNs, as shown by SIGN and SGC ablations.
Citation network of scientific papers. 2708 nodes, 5429 edges, 7 classes. Classic GNN benchmark.
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2 datasets tracked for this task.
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