| Approximate Gauss–Newton methods for nonlinear least squares problems S Gratton, AS Lawless, NK Nichols SIAM Journal on Optimization 18 (1), 106-132, 2007 | 368 | 2007 |
| Recursive trust-region methods for multiscale nonlinear optimization S Gratton, A Sartenaer, PL Toint SIAM Journal on Optimization 19 (1), 414-444, 2008 | 272 | 2008 |
| Algorithm 842: A set of GMRES routines for real and complex arithmetics on high performance computers V Frayssé, L Giraud, S Gratton, J Langou ACM Transactions on Mathematical Software (TOMS) 31 (2), 228-238, 2005 | 230 | 2005 |
| Planck 2018 results-III. High Frequency Instrument data processing and frequency maps N Aghanim, Y Akrami, M Ashdown, J Aumont, C Baccigalupi, M Ballardini, ... Astronomy & Astrophysics 641, A3, 2020 | 169 | 2020 |
| Planck 2015 results-XXV. Diffuse low-frequency Galactic foregrounds PAR Ade, N Aghanim, MIR Alves, M Arnaud, M Ashdown, J Aumont, ... Astronomy & Astrophysics 594, A25, 2016 | 139 | 2016 |
| Direct search based on probabilistic descent S Gratton, CW Royer, LN Vicente, Z Zhang SIAM Journal on Optimization 25 (3), 1515-1541, 2015 | 114 | 2015 |
| An investigation of incremental 4D‐Var using non‐tangent linear models AS Lawless, S Gratton, NK Nichols Quarterly Journal of the Royal Meteorological Society: A journal of the …, 2005 | 101 | 2005 |
| Flexible GMRES with deflated restarting L Giraud, S Gratton, X Pinel, X Vasseur SIAM Journal on Scientific Computing 32 (4), 1858-1878, 2010 | 97 | 2010 |
| B‐preconditioned minimization algorithms for variational data assimilation with the dual formulation S Gürol, AT Weaver, AM Moore, A Piacentini, HG Arango, S Gratton Quarterly Journal of the Royal Meteorological Society 140 (679), 539-556, 2014 | 95 | 2014 |
| Limited‐memory preconditioners, with application to incremental four‐dimensional variational data assimilation J Tshimanga, S Gratton, AT Weaver, A Sartenaer Quarterly Journal of the Royal Meteorological Society: A journal of the …, 2008 | 91 | 2008 |
| Complexity and global rates of trust-region methods based on probabilistic models S Gratton, CW Royer, LN Vicente, Z Zhang IMA Journal of Numerical Analysis 38 (3), 1579-1597, 2018 | 85 | 2018 |
| An active-set trust-region method for derivative-free nonlinear bound-constrained optimization S Gratton, PL Toint, A Tröltzsch Optimization Methods and Software 26 (4-5), 873-894, 2011 | 85 | 2011 |
| A Levenberg–Marquardt method for large nonlinear least-squares problems with dynamic accuracy in functions and gradients S Bellavia, S Gratton, E Riccietti Numerische Mathematik 140 (3), 791-825, 2018 | 83 | 2018 |
| An improved two‐grid preconditioner for the solution of three‐dimensional Helmholtz problems in heterogeneous media H Calandra, S Gratton, X Pinel, X Vasseur Numerical Linear Algebra with Applications 20 (4), 663-688, 2013 | 76 | 2013 |
| On a class of limited memory preconditioners for large scale linear systems with multiple right-hand sides S Gratton, A Sartenaer, J Tshimanga SIAM Journal on Optimization 21 (3), 912-935, 2011 | 74 | 2011 |
| On the condition number of linear least squares problems in a weighted Frobenius norm S Gratton BIT Numerical Mathematics 36 (3), 523-530, 1996 | 74 | 1996 |
| Flexible variants of block restarted GMRES methods with application to geophysics H Calandra, S Gratton, J Langou, X Pinel, X Vasseur SIAM Journal on Scientific Computing 34 (2), A714-A736, 2012 | 71 | 2012 |
| GRACE-derived surface water mass anomalies by energy integral approach: application to continental hydrology G Ramillien, R Biancale, S Gratton, X Vasseur, S Bourgogne Journal of Geodesy 85 (6), 313-328, 2011 | 70 | 2011 |
| Latent space data assimilation by using deep learning M Peyron, A Fillion, S Gürol, V Marchais, S Gratton, P Boudier, G Goret Quarterly Journal of the Royal Meteorological Society 147 (740), 3759-3777, 2021 | 69 | 2021 |
| A recursive -trust-region method for bound-constrained nonlinear optimization S Gratton, M Mouffe, PL Toint, M Weber-Mendonça IMA Journal of Numerical Analysis 28 (4), 827-861, 2008 | 69 | 2008 |
Philippe TointProfessor (Emeritus) of Numerical OptimizationVerified email at unamur.be
