WDHA uses alternating Wasserstein descent and H1 ascent to compute sharp, unregularized Wasserstein barycenters on large grids with O(m log m) per-iteration cost.
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Optimal Transport Barycenter via Nonconvex-Concave Minimax Optimization
WDHA uses alternating Wasserstein descent and H1 ascent to compute sharp, unregularized Wasserstein barycenters on large grids with O(m log m) per-iteration cost.