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math.FA2025
On gradient descent-ascent flows in metric spaces
Noboru Isobe, Sho Shimoyama
Gradient descent-ascent (GDA) flows play a central role in finding saddle points of bivariate functionals, with applications in optimization, game theory, and robust control. While…
cs.DS2025
Sinkhorn Algorithm for Sequentially Composed Optimal Transports
Kazuki Watanabe, Noboru Isobe
Sinkhorn algorithm is the de-facto standard approximation algorithm for optimal transport, which has been applied to a variety of applications, including image processing and natur…