Worst-case evaluation complexity for unconstrained nonlinear optimization using high-order regularized models

E. G. Birgin; J. L. Gardenghi; J. M. Martínez; S. A. Santos; P. L. Toint

doi:10.1007/s10107-016-1065-8

Worst-case evaluation complexity for unconstrained nonlinear optimization using high-order regularized models

E. G. Birgin, J. L. Gardenghi, J. M. Martínez, S. A. Santos, P. L. Toint

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Résumé

The worst-case evaluation complexity for smooth (possibly nonconvex) unconstrained optimization is considered. It is shown that, if one is willing to use derivatives of the objective function up to order p (for p≥ 1 ) and to assume Lipschitz continuity of the p-th derivative, then an ϵ-approximate first-order critical point can be computed in at most O(ϵ ^- ⁽ ^p ⁺ ¹ ⁾ ^/ ^p) evaluations of the problem’s objective function and its derivatives. This generalizes and subsumes results known for p= 1 and p= 2.

langue originale	Anglais
Pages (de - à)	359-368
Nombre de pages	10
journal	Mathematical Programming
Volume	163
Numéro de publication	1-2
Les DOIs	https://doi.org/10.1007/s10107-016-1065-8
état	Publié - 15 avr. 2017

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Birgin, E. G., Gardenghi, J. L., Martínez, J. M., Santos, S. A., & Toint, P. L. (2017). Worst-case evaluation complexity for unconstrained nonlinear optimization using high-order regularized models. Mathematical Programming, 163(1-2), 359-368. https://doi.org/10.1007/s10107-016-1065-8

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abstract = "The worst-case evaluation complexity for smooth (possibly nonconvex) unconstrained optimization is considered. It is shown that, if one is willing to use derivatives of the objective function up to order p (for p≥ 1 ) and to assume Lipschitz continuity of the p-th derivative, then an ϵ-approximate first-order critical point can be computed in at most O(ϵ - ( p + 1 ) / p) evaluations of the problem’s objective function and its derivatives. This generalizes and subsumes results known for p= 1 and p= 2.",

keywords = "Evaluation complexity, High-order models, Nonlinear optimization, Regularization, Unconstrained optimization",

author = "Birgin, {E. G.} and Gardenghi, {J. L.} and Mart{\'i}nez, {J. M.} and Santos, {S. A.} and Toint, {P. L.}",

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AU - Gardenghi, J. L.

AU - Martínez, J. M.

AU - Santos, S. A.

AU - Toint, P. L.

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AB - The worst-case evaluation complexity for smooth (possibly nonconvex) unconstrained optimization is considered. It is shown that, if one is willing to use derivatives of the objective function up to order p (for p≥ 1 ) and to assume Lipschitz continuity of the p-th derivative, then an ϵ-approximate first-order critical point can be computed in at most O(ϵ - ( p + 1 ) / p) evaluations of the problem’s objective function and its derivatives. This generalizes and subsumes results known for p= 1 and p= 2.

KW - Evaluation complexity

KW - High-order models

KW - Nonlinear optimization

KW - Regularization

KW - Unconstrained optimization

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