2 citations · 2 across the 1 of their papers we have counts for
3 papers
A Multilevel Stochastic Gradient method for PDE-constrained Optimal Control Problems with uncertain parameters
Matthieu Martin, Fabio Nobile, Panagiotis Tsilifis
In this paper, we present a multilevel Monte Carlo (MLMC) version of the Stochastic Gradient (SG) method for optimization under uncertainty, in order to tackle Optimal Control Prob…
Sparse Polynomial Chaos expansions using Variational Relevance Vector Machines
Panagiotis Tsilifis, Iason Papaioannou, Daniel Straub +1
The challenges for non-intrusive methods for Polynomial Chaos modeling lie in the computational efficiency and accuracy under a limited number of model simulations. These challenge…
Cubic-Quintic Long-Range Interactions With Double Well Potentials
Panagiotis A. Tsilifis, Panagiotis G. Kevrekidis, Vassilios M. Rothos
In the present work, we examine the combined effects of cubic and quintic terms of the long range type in the dynamics of a double well potential. Employing a two-mode approximatio…