Spectral and vertex localization of functions on graphs
group meeting for the team Sispyhe and Dante (and open to anyone)
| Quand ? |
Le 18/05/2017, de 14:00 à 15:00 |
|---|---|
| Où ? | ENS de Lyon, room 116 (1st floor of building Monod GN) |
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The presentation will be done by Mikhail Tsitsvero who is a new post-doc in Dante team, in graph signal processing (thesis at Sapienza, Roma under the direction of Sergio Barbarossa).
He will give an introductive talk about his work Spectral and vertex localization of functions on graphs.
Road map :
. Approximation of spaces by discrete objects and functions on graphs
. Graph Laplacian
. Uncertainty principle (energy based) for graph signals
. Local behavior of some eigenmodes
. Approximation of spaces by discrete objects and functions on graphs
. Graph Laplacian
. Uncertainty principle (energy based) for graph signals
. Local behavior of some eigenmodes
Notions used : vector space, dual space, free abelian group, affine subspace, group of automorphisms