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Accelerated iterative regularisation via inertial dual diagonal descent

Martedì 16 novembre alle ore 14:30, nell'aula M2.5 del Dipartimento FIM (Edificio Matematica), il Dott. Luca Calatroni (CNRS, Université Côte d’Azur, Inria Sophia Antipolis-Mediterranée) terrà un seminario dal titolo:

"Accelerated iterative regularisation via inertial dual diagonal descent"

Abstract: We analyse convergence and stability properties of an inertial dual diagonal iterative algorithm applied to solve a wide class of linear inverse problems with general data fidelities and strongly convex regularisers. For the convergence analysis we define appropriate discrete Lyapunov functionals and show faster rates by proving their monotone decreasing. Stability and finite early stopping results are proved in terms of suitable notions of approximation codifying the inexact computation of proximal steps in the presence of noisy data.

Host: Marco Prato (FIM, UNIMORE) marco.prato@unimore.it

Abstract [pdf]

[Ultimo aggiornamento: 30/10/2023 10:51:20]