Hu, Liang, Songlei Jian, Longbing Cao, Zhiping Gu, Qingkui Chen, and Artak Amirbekyan. 2019. “HERS: Modeling Influential Contexts With Heterogeneous Relations for Sparse and Cold-Start Recommendation”. Proceedings of the AAAI Conference on Artificial Intelligence 33 (01):3830-37. https://doi.org/10.1609/aaai.v33i01.33013830.