Hui, Binyuan, Pengfei Zhu, and Qinghua Hu. 2020. “Collaborative Graph Convolutional Networks: Unsupervised Learning Meets Semi-Supervised Learning”. Proceedings of the AAAI Conference on Artificial Intelligence 34 (04):4215-22. https://doi.org/10.1609/aaai.v34i04.5843.