RCIN and OZwRCIN projects

Object

Title: Bundle methods for convex minimization with partially inexact oracles

Creator:

Kiwiel, Krzysztof

Date issued/created:

2009

Resource type:

Tekst

Subtitle:

Raport Badawczy = Research Report ; RB/36/2009

Publisher:

Instytut Badań Systemowych. Polska Akademia Nauk ; Systems Research Institute. Polish Academy of Sciences

Place of publishing:

Warszawa

Description:

28 stron ; 21 cm ; Bibliografia s. 25-28

Abstract:

Recently the proximal bundle method for minimizing a convex function has been extended to an inexact oracle that delivers function and subgradient values of unknown accuracy. This method has been adapted to a partially inexact oracle that becomes exact only when an objective target level for a descent step is met. In Lagrangian relaxation, such oracles may save work by evaluating the dual function approximately on most iterations, without compromising the strong convergence properties of exact bundle methods. It was also shown that the recent method of Gaudioso et al. for finite min-max problems fits the partially inexact framework. In the work, its convergence results have been improved and useful modifications have been made. Numerical illustrations on stan­dard instances of the generalized assignment problem (GAP) are included.

Relation:

Raport Badawczy = Research Report

Detailed Resource Type:

Raport

Resource Identifier:

oai:rcin.org.pl:144799

Source:

RB-2009-36

Language:

eng

Language of abstract:

eng

Rights:

Licencja Creative Commons Uznanie autorstwa 4.0

Terms of use:

Zasób chroniony prawem autorskim. [CC BY 4.0 Międzynarodowe] Korzystanie dozwolone zgodnie z licencją Creative Commons Uznanie autorstwa 4.0, której pełne postanowienia dostępne są pod adresem: ; -

Digitizing institution:

Instytut Badań Systemowych Polskiej Akademii Nauk

Original in:

Biblioteka Instytutu Badań Systemowych PAN

Projects co-financed by:

Program Operacyjny Polska Cyfrowa, lata 2014-2020, Działanie 2.3 : Cyfrowa dostępność i użyteczność sektora publicznego; środki z Europejskiego Funduszu Rozwoju Regionalnego oraz współfinansowania krajowego z budżetu państwa

Access:

Otwarty

Object collections:

Last modified:

Oct 19, 2021

In our library since:

Oct 28, 2020

Number of object content downloads / hits:

57

All available object's versions:

https://rcin.org.pl./publication/180389

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