Yin, Y., J. Deng, W. Zhou, and H. Li. “Instance Mining With Class Feature Banks for Weakly Supervised Object Detection”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 35, no. 4, May 2021, pp. 3190-8, https://ojs.aaai.org/index.php/AAAI/article/view/16429.