Dai S, Li X, Zhou Y, Ye X, Liu T. GradPU: Positive-Unlabeled Learning via Gradient Penalty and Positive Upweighting. AAAI [Internet]. 2023 Jun. 26 [cited 2026 May 31];37(6):7296-303. Available from: https://ojs.aaai.org/index.php/AAAI/article/view/25889