Chen, C., Zhang, M., Zhang, Y., Ma, W., Liu, Y. and Ma, S. 2020. Efficient Heterogeneous Collaborative Filtering without Negative Sampling for Recommendation. Proceedings of the AAAI Conference on Artificial Intelligence. 34, 01 (Apr. 2020), 19-26. DOI:https://doi.org/10.1609/aaai.v34i01.5329.