Optimality of orders one to three and beyond: Characterization and evaluation complexity in constrained nonconvex optimization

Coralia Cartis; N. I. M. Gould; Philippe Toint

doi:2018_TointPh_Article

Optimality of orders one to three and beyond: Characterization and evaluation complexity in constrained nonconvex optimization

Coralia Cartis, N. I. M. Gould, Philippe Toint

Namur Institute for Complex Systems

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Résumé

Necessary conditions for high-order optimality in smooth nonlinear constrained optimization are explored and their inherent intricacy discussed. A two-phase minimization algorithm is proposed which can achieve approximate first-, second- and third-order criticality and its evaluation complexity is analyzed as a function of the choice (among existing methods) of an inner algorithm for solving subproblems in each of the two phases. The relation between high-order criticality and penalization techniques is finally considered, showing that standard algorithmic approaches will fail if approximate constrained high-order critical points are sought.

langue originale	Anglais
Pages (de - à)	68-94
Nombre de pages	32
journal	Journal of Complexity
Volume	53
Les DOIs	https://doi.org/2018_TointPh_Article
Etat de la publication	Publié - 10 août 2019

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3 Citations
14 Article
3 Article de travail
1 Chapitre
1 Article dans les actes d'une conférence/un colloque

High-Order Evaluation Complexity for Convexly-Constrained Optimization with Non-Lipschitzian Group Sparsity Terms
Chen, X. & Toint, P., mai 2021, Dans: Mathematical Programming. 187, 1-2, p. 47-78 32 p.
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A concise second-order complexity analysis for unconstrained optimization using high-order regularized models
Cartis, C., Gould, N. I. M. & Toint, P. L., 3 mars 2020, Dans: Optimization Methods and Software. 35, 2, p. 243-256 14 p.
Résultats de recherche: Contribution à un journal/une revue › Article › Revue par des pairs
Adaptive regularization algorithms with inexact evaluations for nonconvex optimization
Bellavia, S., Gurioli, G., Morini, B. & Toint, P., 2 janv. 2020, Dans: SIAM Journal on Optimization. 29, 4, p. 2881-2915 35 p.
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2 Actif

Complexity in nonlinear optimization
TOINT, P., Gould, N. I. M. & Cartis, C.
1/11/08 → …
Projet: Recherche
ADALGOPT: ADALGOPT - Algorithmes avancés en optimisation non-linéaire
Sartenaer, A. & TOINT, P.
1/01/87 → …
Projet: Axe de recherche

3 Discours invité
2 Visite à une institution académique externe
1 Participation à un atelier/workshop, un séminaire, un cours

5th Conference on Numerical Analysis and Optimization
Philippe Toint (Orateur)
6 janv. 2020 → 9 janv. 2020
Activité: Types de Participation ou d'organisation d'un événement › Participation à un atelier/workshop, un séminaire, un cours
Oxford University
Philippe Toint (Chercheur visiteur)
20 nov. 2019 → 6 déc. 2019
Activité: Types de Visite d'une organisation externe › Visite à une institution académique externe
Recent progress in evaluation complexity for nonlinear optimization
Philippe Toint (Orateur)
4 oct. 2019
Activité: Types de discours ou de présentation › Discours invité

Contient cette citation

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title = "Optimality of orders one to three and beyond: Characterization and evaluation complexity in constrained nonconvex optimization",

abstract = "Necessary conditions for high-order optimality in smooth nonlinear constrained optimization are explored and their inherent intricacy discussed. A two-phase minimization algorithm is proposed which can achieve approximate first-, second- and third-order criticality and its evaluation complexity is analyzed as a function of the choice (among existing methods) of an inner algorithm for solving subproblems in each of the two phases. The relation between high-order criticality and penalization techniques is finally considered, showing that standard algorithmic approaches will fail if approximate constrained high-order critical points are sought.",

keywords = "Complexity theory, Constrained problems, High-order optimality conditions, Nonlinear optimization",

author = "Coralia Cartis and Gould, {N. I. M.} and Philippe Toint",

note = "Funding Information: The authors would like to thank Oliver Stein for suggesting reference [41] . The work of the second author was supported by EPSRC, United Kingdom grant EP/M025179/1 . The third author acknowledges the support provided by the Belgian Fund for Scientific Research (FNRS) , the Leverhulme Trust (UK) , Balliol College (Oxford, UK) , the Department of Applied Mathematics of the Hong Kong Polytechnic University , ENSEEIHT (Toulouse, France) and INDAM (Florence, Italy) . Thanks are also due to a thoughtful referee whose patience and perceptive comments have helped to significantly improve the manuscript. Publisher Copyright: {\textcopyright} 2018 Elsevier Inc. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.",

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doi = "2018_TointPh_Article",

language = "English",

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N1 - Funding Information: The authors would like to thank Oliver Stein for suggesting reference [41] . The work of the second author was supported by EPSRC, United Kingdom grant EP/M025179/1 . The third author acknowledges the support provided by the Belgian Fund for Scientific Research (FNRS) , the Leverhulme Trust (UK) , Balliol College (Oxford, UK) , the Department of Applied Mathematics of the Hong Kong Polytechnic University , ENSEEIHT (Toulouse, France) and INDAM (Florence, Italy) . Thanks are also due to a thoughtful referee whose patience and perceptive comments have helped to significantly improve the manuscript. Publisher Copyright: © 2018 Elsevier Inc. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.

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Y1 - 2019/8/10

N2 - Necessary conditions for high-order optimality in smooth nonlinear constrained optimization are explored and their inherent intricacy discussed. A two-phase minimization algorithm is proposed which can achieve approximate first-, second- and third-order criticality and its evaluation complexity is analyzed as a function of the choice (among existing methods) of an inner algorithm for solving subproblems in each of the two phases. The relation between high-order criticality and penalization techniques is finally considered, showing that standard algorithmic approaches will fail if approximate constrained high-order critical points are sought.

AB - Necessary conditions for high-order optimality in smooth nonlinear constrained optimization are explored and their inherent intricacy discussed. A two-phase minimization algorithm is proposed which can achieve approximate first-, second- and third-order criticality and its evaluation complexity is analyzed as a function of the choice (among existing methods) of an inner algorithm for solving subproblems in each of the two phases. The relation between high-order criticality and penalization techniques is finally considered, showing that standard algorithmic approaches will fail if approximate constrained high-order critical points are sought.

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KW - Constrained problems

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Optimality of orders one to three and beyond: Characterization and evaluation complexity in constrained nonconvex optimization

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