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Yumin Xu
Researcher
PaperScalable Bi-causal Optimal Transport via KL Relaxation and Policy GradientsAuthorship / preprint / 2026Haoyang CaoCo-authorship / ResearcherJesse HoekstraCo-authorship / ResearcherRenyuan XuCo-authorship / ResearcherRuixun ZhangCo-authorship / ResearcherTopicmath.OCWorks on / 9232 worksTopicMachine LearningWorks on / 49008 worksPaperDiffusion Factor Models: Generating High-Dimensional Returns with Factor StructureAuthorship / preprint / 2026