| Self-scaled conjugate gradient training algorithms AE Kostopoulos, TN Grapsa Neurocomputing 72 (13-15), 3000-3019, 2009 | 55 | 2009 |
| A spectral version of Perry’s conjugate gradient method for neural network training DG Sotiropoulos, AE Kostopoulos, TN Grapsa Proceedings of 4th GRACM Congress on Computational Mechanics 1, 291-298, 2002 | 40 | 2002 |
| On the localization and computation of zeros of Bessel functions MN Vrahatis, TN Grapsa, O Ragos, FA Zafiropoulos ZAMM‐Journal of Applied Mathematics and Mechanics/Zeitschrift für Angewandte …, 1997 | 28 | 1997 |
| A dimension-reducing method for solving systems of nonlinear equations in TN Grapsa, MN Vrahatis International journal of computer mathematics 32 (3-4), 205-216, 1990 | 28 | 1990 |
| A dimension-reducing method for unconstrained optimization TN Grapsa, MN Vrahatis Journal of computational and applied mathematics 66 (1), 239-253, 1996 | 27 | 1996 |
| Locating and computing zeros of Airy functions MN Vrahatis, O Ragos, FA Zafiropoulos, TN Grapsa ZAMM‐Journal of Applied Mathematics and Mechanics/Zeitschrift für Angewandte …, 1996 | 26 | 1996 |
| RFSFNS: A portable package for the numerical determination of the number and the calculation of roots of Bessel functions MN Vrahatis, O Ragos, T Skiniotis, FA Zafiropoulos, TN Grapsa Computer physics communications 92 (2-3), 252-266, 1995 | 26 | 1995 |
| Early dropout prediction in distance higher education using active learning G Kostopoulos, S Kotsiantis, O Ragos, TN Grapsa 2017 8th International Conference on Information, Intelligence, Systems …, 2017 | 24 | 2017 |
| The implicit function theorem for solving systems of nonlinear equations in TN Grapsa, MN Vrahatis International journal of computer mathematics 28 (1-4), 171-181, 1989 | 23 | 1989 |
| Optimal centers in branch-and-prune algorithms for univariate global optimization DG Sotiropoulos, TN Grapsa Applied mathematics and computation 169 (1), 247-277, 2005 | 20 | 2005 |
| Neural network supervised training based on a dimension reducing method GD Magoulas, MN Vrahatis, TN Grapsa, GS Androulakis Mathematics of neural networks: Models, algorithms and applications, 245-249, 1997 | 20 | 1997 |
| A modified Newton direction for unconstrained optimization TN Grapsa Optimization 63 (7), 983-1004, 2014 | 18 | 2014 |
| A modified Newton direction for unconstrained optimization TN Grapsa 23rd European Conference on Operational Research, 2009 | 18* | 2009 |
| A training method for discrete multilayer neural networks GD Magoulas, MN Vrahatis, TN Grapsa, GS Androulakis Mathematics of neural networks: Models, algorithms and applications, 250-254, 1997 | 18 | 1997 |
| Bounding the zeros of an interval equation IA Nikas, TN Grapsa Applied mathematics and computation 213 (2), 466-478, 2009 | 14 | 2009 |
| The topological degree theory for the localization and computation of complex zeros of Bessel functions MN Vrahatis, O Ragos, T Skiniotis, FA Zafiropoulos, TN Grapsa Numerical Functional Analysis and Optimization 18 (1-2), 227-234, 1997 | 14 | 1997 |
| A new dimension—reducing method for solving systems of nonlinear equations TN Grapsa, MN Vrahatis International journal of computer mathematics 55 (3-4), 235-244, 1995 | 11 | 1995 |
| Solving systems of nonlinear equations In using a rotating hyperplane in TN Grapsa, MN Vrahatis, TC Bountis International journal of computer mathematics 35 (1-4), 133-151, 1990 | 11 | 1990 |
| Improved Newton's method without direct function evaluations EN Malihoutsaki, IA Nikas, TN Grapsa Journal of Computational and Applied Mathematics 227 (1), 206-212, 2009 | 10 | 2009 |
| Improving the Efficiency of a Polynomial System Solver via a Reordering Technique DG Sotiropoulos, JA Nikas, TN Grapsa 4th GRACM Congress on Computational Mechanics (GRACM2002), Vol. III, pp. 970-976, 2002 | 10 | 2002 |
Michael N. VrahatisDepartment of Mathematics, University of Patras, GreeceVerified email at upatras.gr
