Li, M., Zhang, S., Zhu, F., Qian, W., Zang, L., Han, J., & Hu, S. (2020). Symmetric Metric Learning with Adaptive Margin for Recommendation. Proceedings of the AAAI Conference on Artificial Intelligence, 34(04), 4634-4641. https://doi.org/10.1609/aaai.v34i04.5894