A 2-day doctoral school will precede the "international Traveling Workshop on Interactions between low-complexity data models and Sensing Techniques" (iTWIST), on Monday 22th and Tuesday 23th, June 2020. It will be co-located with the iTWIST’20 workshop at École Centrale de Nantes. The doctoral school aims at giving the opportunity to Ph.D. (or M.Sc.) students and postdoctoral fellows to learn some of the theoretical and applicative concepts discussed in the workshop. The school will be divided into 4 courses and will take place before the workshop.

The speakers and topics of the courses are:

• Jérémy Cohen (IRISA - CNRS, Rennes, France), "Nonnegative and Low-rank Approximations" (3h);
• Jordan Ninin (ENSTA-Bretagne, Brest, France), "Global Optimization based on Branch-and-Bound algorithms" (3h);
• Gabriel Peyré (ENS - CNRS, Paris, France), "Computational optimal transport" (4h);
• Last speaker to be annouced

The course related to “Nonnegative and Low-rank Approximations” will introduce how these problems are key to understanding nonnegative matrix (NMF) and tensor (NTF) factorizations. Dedicated optimization algorithms will be presented and applied to unsupervised machine learning. The "Branch and Bound" course will address the fundamentals of branch and bound techniques to tackle global optimization problems and dedicated accelerations strategies to cope with nonlinear and combinatorial optimization. The course on "Computational optimal transport" will introduce the fundamental mathematical theory of Optimal Transport (OT), which has recently emerged as an important tool to tackle a surprisingly large range of problems in data sciences, including high dimensional learning problems.

Submission Guidelines

The number of seats being limited, interested participants are invited to submit a single pdf file with their CV (1 page) and a cover letter (1 page) signed by their scientific supervisor.  The registration for the doctoral school is free but mandatory. Registration will cover access to the school. Accepted participants
are expected to register as well and attend the workshop and can submit papers to iTWIST’20.

Committees

Program Committee

• S. Anthoine (CNRS, France)
• T. Arildsen (Aalborg University, Denmark)
• Y. Boursier (CPPM, France)
• C. Chaux (CNRS, France)
• L. Daudet (Institut Langevin, Paris, France)
• N. Deligiannis (VUB, Belgium)
• C. De Mol (ULB, Belgium)
• N. Gillis (UMons, Belgium)
• M. Golbabaee (University of Bath, UK)
• C. Herzet (Inria Rennes, France)
• L. Jacques (UCLouvain, Belgium)
• A. Pizurica (Ghent U., Belgium)
• C. Poon (U. Cambridge, UK)

Organizing committee

• Sébastien Bourguignon (École Centrale de Nantes, France)
• Cédric Herzet (INRIA Rennes, France)
• Jérôme Idier (École Centrale de Nantes - CNRS, France)
• Charles Soussen (CentraleSupélec, France)

Contact

All questions about submissions should be emailed to sebastien.bourguignon@ls2n.fr, cedric.herzet@inria.fr, jerome.idier@ls2n.fr, charles.soussen@centralesupelec.fr