Séminaire du CMAP
Séminaires passés - Comment venir
Mars 2021
Mardi 2 mars
10h30 Yang Qi Geometric techniques for tensor computations
Résumé de Y. Qi : Tensors, as straightforward higher dimensional generalizations of matrices, appear naturally in many areas. In particular, rank decomposition, low rank approximation, and low rank completion have shown their power in signal/image processing, statistics, machine learning, and so on. On the other hand, not much is known about the theoretical foundation of tensors. Besides, as highly non-convex problems, many related computations are challenging. In this talk, we will introduce some geometric tools which can help us study certain computational issues, for instance, the uniqueness of rank decomposition and existence of low rank approximation. If time permits, we will also discuss how geometry assists us to design practical algorithms.
Mardi 16 mars
10h30 Dimo Brockhoff
Mardi 30 mars
10h30 Bénédicte Haas
Avril 2021
Mardi 13 avril
10h30
Mai 2021
Mardi 4 mai
10h30
Mardi 18 mai
10h30
Juin 2021
Mardi 1 juin
10h30
Mardi 15 juin
10h30
Mardi 29 juin
10h30
Les organisateurs : Anne Auger, Lucas Chesnel et Lucas Gerin