Liu, Y., L. Huang, P. Pan, B. Wang, Y. Xu, and R. Jin. “Train a One-Million-Way Instance Classifier for Unsupervised Visual Representation Learning”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 35, no. 10, May 2021, pp. 8706-14, doi:10.1609/aaai.v35i10.17055.