Solving Discrete (Semi) Unbalanced Optimal Transport with Equivalent Transformation Mechanism and KKT-Multiplier Regularization - Liu, Weiming; Liao, Xinting; Dan, Jun; Wang, Fan; Yu, Hua; Dong, Junhao; Dong, Shunjie; Qi, Lianyong; Ong, Yew Soon (Advances in Neural Information Processing Systems, 2025)