Debiasing optimal transport: classical and entropic

Pierre-Cyril Aubin-Frankowski, Virginie Ehrlacher, Gabriele Todeschi

We study the notion of debiasability for cost functions arising in optimal transport. We call a symmetric cost function $c:\mathcal{X}\times \mathcal{X}\to \mathbb{R}\cup \{+\infty \}$…