Publications de Xavier VASSEUR
Kamaldeep Singh Oberoi, Géraldine del Mondo, Benoit Gaüzère, Yohan Dupuis, Pascal Vasseur
Detecting dynamic patterns in dynamic graphs using subgraph isomorphism
Pattern Analysis and Applications, 2023, ⟨10.1007/s10044-023-01145-z⟩
Henri Calandra, Serge Gratton, Elisa Riccietti, Xavier Vasseur
On Iterative Solution of the Extended Normal Equations
SIAM Journal on Matrix Analysis and Applications, 2020, 41 (4), pp.1571-1589. ⟨10.1137/19M1288644⟩
Henri Calandra, Serge Gratton, Elisa Riccietti, Xavier Vasseur
On the approximation of the solution of partial differential equations by artificial neural networks trained by a multilevel Levenberg-Marquardt method
Optimization Methods and Software, 2020
Henri Calandra, Serge Gratton, Elisa Riccietti, Xavier Vasseur
On a multilevel Levenberg–Marquardt method for the training of artificial neural networks and its application to the solution of partial differential equations
Optimization Methods and Software, 2020, pp.1-26. ⟨10.1080/10556788.2020.1775828⟩
Henri Calandra, Serge Gratton, Elisa Riccietti, Xavier Vasseur
On high-order multilevel optimization strategies
SIAM Journal on Optimization, 2020, 31 (1), pp.307-330. ⟨10.1137/19M1255355⟩
Henri Calandra, Serge Gratton, Elisa Riccietti, Xavier Vasseur
ON THE ITERATIVE SOLUTION OF SYSTEMS OF THE FORM A T Ax = A T b + c
SIAM Journal on Matrix Analysis and Applications, 2020, pp.1-25
Oliver Guillet, Anthony Weaver, Xavier Vasseur, Yann Michel, Serge Gratton, Selime Gurol
Modelling spatially correlated observation errors in variational data assimilation using a diffusion operator on an unstructured mesh
Quarterly Journal of the Royal Meteorological Society, 2019, pp.1-21. ⟨10.1002/qj.3537⟩
Thibaut Lunet, Julien Bodart, Serge Gratton, Xavier Vasseur
Time-parallel simulation of the decay of homogeneous turbulence using Parareal with spatial coarsening
Computing and Visualization in Science, 2018, Special Issue Parallel-in-Time Methods, 19, pp.31-44. ⟨10.1007/s00791-018-0295-0⟩
Matthew C. Fisher, Serge Gratton, Selime Gurol, Y. Trémolet, Xavier Vasseur
Low rank updates in preconditioning the saddle point systems arising from data assimilation problems
Optimization Methods and Software, 2018, 33 (1), pp.45-69. ⟨10.1080/10556788.2016.1264398⟩
Sylvain Mercier, Serge Gratton, Nicolas Tardieu, Xavier Vasseur
A new preconditioner update strategy for the solution of sequences of linear systems in structural mechanics: application to saddle point problems in elasticity
Computational Mechanics, 2017, 60 (6), pp.969-982. ⟨10.1007/s00466-017-1450-z⟩
Serge Gratton, Pascal Hénon, Pavel Jiranek, Xavier Vasseur
Reducing complexity of algebraic multigrid by aggregation
Dans : Numerical Linear Algebra with Applications, Wiley, Vol. 23, p. 501-518, 2016.
Youssef Diouane, Serge Gratton, Xavier Vasseur, Luis Vicente, Henry Calandra
A parallel evolution strategy for an Earth imaging problem in geophysics,
Dans : Optimization Engineering, Taylor & Francis Group, Vol. 17 N. 1, p. 2-26, 2016.
Youssef Diouane, Serge Gratton, Xavier Vasseur
A parallel evolution strategy for an Earth imaging problem in geophysics
Dans : Optimization and Engineering, Springer, Vol. 17, N. 1, p. 3-26, 2016.
Serge Gratton, Sylvain Mercier, Nicolas Tardieu, Xavier Vasseur
Limited memory preconditioners for symmetric indefinite problems with application to structural mechanics
Dans : Numerical Linear Algebra with Applications, Wiley, Vol. 23 N. 5, p. 865-887, 2016.
Guillaume Ramillien, Frank Frappart, Serge Gratton, Xavier Vasseur
Sequential estimation of surface water mass changes from daily satellite gravimetry data
Dans : Journal of Geodesy, Springer, Vol. 89, p. 259-282, 2015.
Serge Gratton, Pavel Jiranek, Xavier Vasseur
Energy backward error: interpretation in numerical solution of elliptic partial differential equations and convergence of the conjugate gradient method
Dans : Electronic Transaction on Numerical Analysis, Kent State UNiversity, USA, Vol. 40, p. 338-355, 2013.
Guillaume Ramillien, Lucia Soane, Frank Frappart, Serge Gratton, Xavier Vasseur, Stéphane Bourgogne
Constrained regional recovery of continental water mass time-variations from GRACE-based geopotential anomalies
Dans : Surveys in Geophysics, Springer, Vol. 33 N. 5, p. 887-905, 2012.
Henry Calandra, Serge Gratton, Raphael Lago, Xavier Pinel, Xavier Vasseur
Two-Level preconditioned Krylov subspace methods for the solution of three-dimensional heterogeneous Helmholtz problems in seismics
Dans : Numerical Analysis and Applications, Springer, Vol. 5 N. 2, p. 175-191, mai 2012.
Henry Calandra, Serge Gratton, Julien Langou, Xavier Pinel, Xavier Vasseur
Flexible variants of block restarted GMRES methods with application to geophysics
Dans : SIAM Journal on Scientific Computing, Society for Industrial and Applied Mathematics (SIAM), USA, Vol. 34 N. 2, p. 714-736, 2012.
Guillaume Ramillien, Richard Biancale, Serge Gratton, Xavier Vasseur, Stéphane Bourgogne
GRACE-derived surface mass anomalies by energy integral approach. Application to continental hydrology
Dans : Journal of Geodesy, Springer, Vol. 85 N. 6, p. 313-328, 2012.
Luis Carvalho, Serge Gratton, Raphael Lago, Xavier Vasseur
A flexible generalized conjugate residual method with inner orthogonalization and deflated restarting
Dans : SIAM Journal on Matrix Analysis and Applications, Society for Industrial and Applied Mathematics (SIAM), USA, Vol. 32 N. 4, p. 1212-1235, 2011.
Luc Giraud, Serge Gratton, Xavier Pinel, Xavier Vasseur
Flexible GMRES with Deflated Restarting
Dans : SIAM Journal on Scientific Computing, Society for Industrial and Applied Mathematics (SIAM), USA, Vol. 32 N. 4, p. 1858-1878, 2010.
Luc Giraud, Serge Gratton, Xavier Pinel, Xavier Vasseur
Flexible GMRES with Deflated Restarting with Application for the Solution of the Helmoltz Equations
Dans : Minisymposium on Domain-Based and Krylov-Based Deflation Methods for Flow in Porous Media at the 2007 SIAM Conference on Mathematical and Computational Issues in the Geosciences, Santa Fe, New Mexico, 19/03/07-22/03/07 (conférencier invité).
Luc Giraud, Serge Gratton, Xavier Pinel, Xavier Vasseur
Flexible GMRES with deflated restarting with application to a solution of the Helmholtz equation
Dans : ICIAM 2007, Minisymposium on Solution methods for sequences of linear systems and applications., Zurich, 16/07/07-20/07/07 (conférencier invité).
Henri Calandra, Serge Gratton, Elisa Riccietti, Xavier Vasseur
On high-order multilevel optimization strategies
2020