Creators and Maintainers

This toolbox has been created by Rémi Flamary and Nicolas Courty.

It is currently maintained by :

• Rémi Flamary

• Cédric Vincent-Cuaz

Contributors

The contributors to this library are:

• Rémi Flamary (EMD wrapper, Pytorch backend, DA classes, conditional gradients, WDA, weak OT, linear OT mapping, documentation)

• Nicolas Courty (Original sinkhorn, Wasserstein barycenters and convolutional barycenters, 1D wasserstein)

• Alexandre Gramfort (CI, documentation)

• Laetitia Chapel (Partial OT, Unbalanced OT non-regularized)

• Michael Perrot (Mapping estimation)

• Léo Gautheron (Initial GPU implementation)

• Nathalie Gayraud (DA classes)

• Stanislas Chambon (DA classes)

• Antoine Rolet (EMD solver debug)

• Erwan Vautier (Gromov-Wasserstein)

• Kilian Fatras (Stochastic solvers, empirical sinkhorn)

• Alain Rakotomamonjy (Greenkhorn)

• Vayer Titouan (Gromov-Wasserstein, Fused-Gromov-Wasserstein)

• Hicham Janati (Unbalanced OT, Debiased barycenters)

• Romain Tavenard (1D Wasserstein)

• Mokhtar Z. Alaya (Screenkhorn)

• Ievgen Redko (Laplacian DA, JCPOT)

• Adrien Corenflos (Sliced Wasserstein Distance)

• Tanguy Kerdoncuff (Sampled Gromov Wasserstein)

• Minhui Huang (Projection Robust Wasserstein Distance)

• Nathan Cassereau (Backends)

• Cédric Vincent-Cuaz (Graph Dictionary Learning, FGW, semi-relaxed FGW, quantized FGW, partial FGW)

• Eloi Tanguy (Generalized Wasserstein Barycenters, GMMOT, Barycenters for General Transport Costs)

• Camille Le Coz (EMD2 debug)

• Eduardo Fernandes Montesuma (Free support sinkhorn barycenter)

• Theo Gnassounou (OT between Gaussian distributions)

• Clément Bonet (Wasserstein on circle, Spherical Sliced-Wasserstein)

• Ronak Mehta (Efficient Discrete Multi Marginal Optimal Transport Regularization)

• Xizheng Yu (Efficient Discrete Multi Marginal Optimal Transport Regularization)

• Sonia Mazelet (Template based GNN layers)

• Laurène David (Low rank sinkhorn, Low rank Gromov-Wasserstein samples)

• Julie Delon (GMM OT)

• Samuel Boïté (GMM OT)

• Nathan Neike (Sparse EMD solver)

• Thibaut Germain (SGOT)

• Sienna O’Shea (SGOT)

Acknowledgments

This toolbox benefit a lot from open source research and we would like to thank the following persons for providing some code (in various languages):

• Gabriel Peyré (Wasserstein Barycenters in Matlab)

• Mathieu Blondel (original implementation smooth OT)

• Nicolas Bonneel (C++ code for EMD)

• Marco Cuturi (Sinkhorn Knopp in Matlab/Cuda)

POT has benefited from the financing or manpower from the following partners: