Luo, C., P. Zhao, C. Chen, B. Qiao, C. Du, H. Zhang, W. Wu, S. Cai, B. He, S. Rajmohan, and Q. Lin. “PULNS: Positive-Unlabeled Learning With Effective Negative Sample Selector”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 35, no. 10, May 2021, pp. 8784-92, doi:10.1609/aaai.v35i10.17064.