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Cleaned up version — A PyTorch implementation of The ICLR 2019 paper "Invariant and Equivariant Graph Networks" by Haggai Maron, Heli Ben-Hamu, Nadav Shamir and Yaron Lipman https://openreview.net/forum?id=Syx72jC9tm. The official TensorFlow implementation is at https://github.com/Haggaim/InvariantGraphNetworks.

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Invariant and Equivariant Graph Networks (PyTorch)

A PyTorch implementation of The ICLR 2019 paper "Invariant and Equivariant Graph Networks" by Haggai Maron, Heli Ben-Hamu, Nadav Shamir and Yaron Lipman https://openreview.net/forum?id=Syx72jC9tm. The official TensorFlow implementation is at https://github.com/Haggaim/InvariantGraphNetworks

Data

Data should be downloaded from: https://www.dropbox.com/s/vjd6wy5nemg2gh6/benchmark_graphs.zip?dl=0. Run the following commands in order to unzip the data and put its proper path.

mkdir data
unzip benchmark_graphs.zip -d data

Prerequisites

Python3

PyTorch 1.5.0

Additional modules: numpy, pandas, matplotlib

TensorFlow is not neccessary except if you want to run the tests (comparisons) between the PyTorch and TensorFlow versions.

Running the tests

Run the tests comparing between PyTorch and TensorFlow versions' tensor contractions. All tensor contractions are implemented 1-to-1. The two versions have identical tensor contractions:

cd layers/
python3 test_tensorflow_pytorch_contractions.py

Run the (permutation) equivariance tests for the equivariant linear layers implemented in PyTorch (e.g. permute the input tensor and the output tensor must transform covariantly):

python3 test_pytorch_layers.py

Running the experiment

The folder main_scripts contains scripts that run different experiments:

  1. To run 10-fold cross-validation with our hyper parameters run the main_10fold_experiment.py script. You can choose the datase in 10fold_config.json.
  2. To run hyper-parameter search, run the main_parameter_search.py script with the corresponding config file
  3. To run training and evaluation on one of the data sets run the main.py script

example to run 10-fold cross-validation experiment:

cd main_scripts/
python3 -m main_10fold_experiment --config=../configs/10fold_config.json

Note

PyTorch implementation of tensor contractions and equivariant linear layers is in:

layers/equivariant_linear_pytorch.py

PyTorch implementation of invariant (basic) graph nets:

models/invariant_basic.py

Related work

Covariant Compositional Networks For Learning Graphs https://arxiv.org/abs/1801.02144 Predicting molecular properties with covariant compositional networks https://aip.scitation.org/doi/10.1063/1.5024797 The general theory of permutation equivarant neural networks and higher order graph variational encoders https://arxiv.org/abs/2004.03990

Contact

Email: hytruongson@uchicago.edu

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Cleaned up version — A PyTorch implementation of The ICLR 2019 paper "Invariant and Equivariant Graph Networks" by Haggai Maron, Heli Ben-Hamu, Nadav Shamir and Yaron Lipman https://openreview.net/forum?id=Syx72jC9tm. The official TensorFlow implementation is at https://github.com/Haggaim/InvariantGraphNetworks.

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