Wang, Z., H. Zhu, Z. Dong, X. He, and S.-L. Huang. “Less Is Better: Unweighted Data Subsampling via Influence Function”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 34, no. 04, Apr. 2020, pp. 6340-7, doi:10.1609/aaai.v34i04.6103.