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NodeNorm - Understanding and Resolving Performance Degradation in Deep Graph Convolutional Networks

Official pytorch code for NodeNorm paper (CIKM 2021)

Eligible Version of Python and Related Packages

Run with Sacred

run directly

python main.py

run with automatic debugging mode

python main.py -D

run with manual debugging mode

python main.py -d

run with specified options

We use "with" to denote modified options in Sacred config. Here the key of a dictionary can be used as a property of that "dictionary". Options not specified after "with" will remain the default values in config.py.

For example, to reproduce the result of 2-layer GCN-res with NodeNorm, run

python main.py with data.dataset=cora arch.layer_type=gcn_res arch.block_type=n_a_r arch.num_layers=2 arch.dropout.p=0.8 optim.l1_weight=0.001 optim.weight_decay=0.001

In the command above, 'arch.layer_type' can be chosed from: <br>'gcn' for GCN <br>'gcn_res' for GCN with residual connections <br>'gat' for GAT <br>'gat_res' for GAT with residual connections <br>'sage' for GraphSage <br>'sage_res' for GraphSage with residual connections;

'arch.block_type' can be chosed from: <br>'v' for vallina layers without residual connection or normalization <br>'a_r' for adding residual connections <br>'b_a' for adding BatchNorm <br>'n_a' for adding NodeNorm <br>'b_a_r' for adding both BatchNorm and residual connections <br>'n_a_r' for adding both NodeNorm and residual connections.

By setteing 'data.random_split.use=False', we can use the commonly used split for Cora, Citeseer and Pubmed as used in [1].

We may set 'arch.nn=False' to switch off NodeNorm for the first layer.

In our code, we use the DGL library for building our GNN architectures and the Pytorch_Geometric library for providing data.

cite

If you use our code, please cite

@inproceedings{zhou2021understanding,
  title={Understanding and Resolving Performance Degradation in Deep Graph Convolutional Networks},
  author={Zhou, Kuangqi and Dong, Yanfei and Wang, Kaixin and Lee, Wee Sun and Hooi, Bryan and Xu, Huan and Feng, Jiashi},
  booktitle={Proceedings of the 30th ACM International Conference on Information \& Knowledge Management},
  pages={2728--2737},
  year={2021}
}

Reference <br>[1] Kipf, T. N., & Welling, M. (2016). Semi-supervised classification with graph convolutional networks. arXiv preprint arXiv:1609.02907.