GraphGAN

• This repository is the implementation of GraphGAN (arXiv):

  GraphGAN: Graph Representation Learning With Generative Adversarial Nets
  Hongwei Wang, Jia Wang, Jialin Wang, Miao Zhao, Weinan Zhang, Fuzheng Zhang, Xing Xie, Minyi Guo
  32nd AAAI Conference on Artificial Intelligence, 2018

GraphGAN unifies two schools of graph representation learning methodologies: generative methods and discriminative methods, via adversarial training in a minimax game. The generator is guided by the signals from the discriminator and improves its generating performance, while the discriminator is pushed by the generator to better distinguish ground truth from generated samples.

Files in the folder

• data/: training and test data
• pre_train/: pre-trained node embeddings

  Note: the dimension of pre-trained node embeddings should equal n_emb in src/GraphGAN/config.py

• results/: evaluation results and the learned embeddings of the generator and the discriminator
• src/: source codes

Requirements

The code has been tested running under Python 3.6.5, with the following packages installed (along with their dependencies):

• tensorflow == 1.8.0
• tqdm == 4.23.4 (for displaying the progress bar)
• numpy == 1.14.3
• sklearn == 0.19.1

Input format

The input data should be an undirected graph in which node IDs start from 0 to N-1 (N is the number of nodes in the graph). Each line contains two node IDs indicating an edge in the graph.

txt file sample

0 1
3 2
...

Basic usage

mkdir cache
cd src/GraphGAN
python graph_gan.py