Liang, F., Pan, W. and Ming, Z. 2021. FedRec++: Lossless Federated Recommendation with Explicit Feedback. Proceedings of the AAAI Conference on Artificial Intelligence. 35, 5 (May 2021), 4224-4231. DOI:https://doi.org/10.1609/aaai.v35i5.16546.