Clément Sarrazin - Homepage

I am a Maître de Conférence (assistant professor) at Institut Mines Télécom (IMT) Nord-Europe in Villeneuve-d'Ascq.

Prior to that, I obtained my PhD at Institute of Mathematics in Orsay (Paris-Saclay university), under the advisement of Quentin Mérigot and Filippo Santambrogio, then did 2 years of Postdoc in the team of Bernhard Schmitzer at Göttingen university and a 1 year Postdoc in team RAPSODI with Andrea Natale at INRIA Lille.

My research interests all revolve around Optimal Transport, but more precisely:

Unbalanced Optimal Transport and the Riemannian-like structure exhibited by some distances it defines.
Data Analysis and Data Generation in measure spaces.
Measure Theory, in its interractions with Optimal Transport structures.
(Lately) Optimal transport between point processes and discrete approximations of probability distributions.

You can find my curiculum vitae (in french) here.

Contact informations:

Email:

UnaccentedFirstName.LastName@imt-nord-europe.fr

Research:

PHD Thesis:

Lagrangian discretization of variational problems in Wasserstein spaces

these.fr

Publications:

Lagrangian discretization of variational mean field games
C. S.
arXiv:2010.11519. Published in SIAM Journal on Control and Optimization, Volume 60, Issue 3 (June 2022), pages 1365 - 1392.
Non-asymptotic convergence bounds for Wasserstein approximation using point clouds
Q. Mérigot, F. Santambrogio, C. S.
arXiv:2106.07911. Published in Advances in Neural Information Processing Systems, Volume 34 (NeurIPS 2021), pages 12810 - 12821.
Linearized optimal transport on manifolds
C.S., B. Schmitzer
arXiv:2303.13901. Published in SIAM Journal on Mathematical Analysis, Volume 56 (2023), pages 4970 - 5016.
3D imaging of SARS-CoV-2 infected hamster lungs by X-ray phase contrast tomography enables drug testing

J. Reichmann, C. S., S. Schmale, C. Blaurock, A. Balkema-Buschmann, B. Schmitzer, T. Salditt

biorXiv. Published in Springer Nature, Volume 14 (2024), Article 12348.

Preprint:

Transfer Operators from Batches of Unpaired Points via Entropic Transport Kernel

F. Beier, H. Bi, C. S., B. Schmitzer, G. Steidl

arXiv:2402.08425

Work group:

I organized the Orsay sessions of the work group of Calculus of Variations (CalVa) between the universities of Paris-Saclay, Paris 6, Paris 7 and Paris Dauphine during the years 2018-2021.

Teachings:

I taught a one week introductory course on the theory of optimal transport to Master students at Università di Verona at the end of November 2022.

I was a teaching fellow at IUT de Sceaux during my PhD, where I taught Statistical analysis for second year students in management, as well as Mathematics for management for first year students.

Prior to this, I taught general mathematics for 7th grade, 10th grade and 1st year technical degree in chemistry (french BTS).

I also gave oral interrogations (colles) in classes préparatoires aux grandes écoles, intensive preparatory courses for undergraduate students aiming to join engineering schools, Polytechnique (X), Ecole Normale Supérieure (ENS) and the like...

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