Smith, J. David, and My T. Thai. “Measuring Edge Sparsity on Large Social Networks”. Proceedings of the International AAAI Conference on Web and Social Media 14, no. 1 (May 26, 2020): 638-649. Accessed October 28, 2020. https://aaai.org/ojs/index.php/ICWSM/article/view/7330.