Chen C, Zhang M, Zhang Y, Ma W, Liu Y, Ma S. Efficient Heterogeneous Collaborative Filtering without Negative Sampling for Recommendation. AAAI [Internet]. 2020 Apr. 3 [cited 2026 May 25];34(01):19-26. Available from: https://ojs.aaai.org/index.php/AAAI/article/view/5329