Hasil untuk "physics.comp-ph"

F. Dadeau, J.-Ph. Gros, O. Kouchnarenko

PH Long

Ph. Jetzer

PH Canter

PH Canter, Barry Spivack

D. Decloedt, B. De Pauw, Ph. Van Bogaert

Ph. L. Toint

This paper presents a numerical comparison between algorithms for unconstrained optimization that take account of sparsity in the second derivative matrix of the objective function. Some of the methods included in the comparison use difference approximation schemes to evaluate the second derivative matrix and others use an approximation to it which is updated regularly using the changes in the gradient. These results show what method to use in what circumstances and also suggest interesting future developments.

Robert-Ph. Dollfus

Robert-Ph. Dollfus

Robert-Ph. Dollfus

PH Brax

M. C. Rigothier, P. N. Vuong, Ph. Gayral

M. Langeron, Ph. J. Luteraan

Carl E. Patton

Philippe M. Fauchet

M. Langeron, M. Neveu-Lemaire, R.-Ph. Dollfus

M. Langeron, Ch. Langeron, R.-Ph. Dollfus et al.

J.-C. Gantier, J. Maccario, N.-Ph. Vuong et al.

Ph. Catillon