Results 1 to 10 of about 2,995 (164)

Surrogate “Level-Based” Lagrangian Relaxation for mixed-integer linear programming [PDF]

open access: yesScientific Reports, 2022
Mixed-Integer Linear Programming (MILP) plays an important role across a range of scientific disciplines and within areas of strategic importance to society. The MILP problems, however, suffer from combinatorial complexity.
Mikhail A. Bragin, Emily L. Tucker
doaj   +2 more sources

Lagrangian relaxation for SVM feature selection [PDF]

open access: yesComputers and Operations Research, 2017
We discuss a Lagrangian-relaxation-based heuristics for dealing with feature selection in the Support Vector Machine (SVM) framework for binary classification. In particular we embed into our objective function a weighted combination of the L1 and L0 norm of the normal to the separating hyperplane.
Martine Labbé   +2 more
exaly   +8 more sources

Power management in a hydrothermal system considering maintenance using Lagrangian relaxation and augmented Lagrangian methods

open access: yesAlexandria Engineering Journal, 2022
The maintenance of power system equipment, specifically, the maintenance of generating units, is implicitly related to the reliability and economic operation of the power system.
M.R. Qader
doaj   +1 more source

Designing a resilient location-allocation model for cell site networks with regional coverage enhancement approach using robust programming–lagrangian relaxation [PDF]

open access: yesJournal of Applied Research on Industrial Engineering, 2022
The development of cell sites as part of the infrastructure of telecommunication technology is playing a unique role in emerging businesses at present.
Salar Babaei, Alireza Hamidieh
doaj   +1 more source

Undesirable facility location using Lagrangian relaxation method [PDF]

open access: yesMuṭāli̒āt-i Mudīriyyat-i Ṣan̒atī, 2019
Overally location problem could be classified as desirable facility location and undesirable facility location. In the undesirable facility location problem contrary to desirable location, facilities are located far from service receiver facilities as ...
پری‌سیما پاک‌روان   +1 more
doaj   +1 more source

Blood supply chain network design considering responsiveness and reliability in conditions of uncertainty using the lagrangian relaxation algorithm [PDF]

open access: yesInternational Journal of Research in Industrial Engineering, 2022
The growing need for adequate and safe blood and the high costs of health systems have prompted governments to improve the functioning of health systems.
Alireza Hamidieh, Ali Johari
doaj   +1 more source

Lagrangian relaxation approach for multi-commodity distribution problem with fixed cost [PDF]

open access: yesتصمیم گیری و تحقیق در عملیات, 2018
In this paper, a multi- commodity planning problem with fixed-cost that is a special type of fixed charge transportation problem is developed. The proposed model determines the amount of products in the existing routes with the aim of minimizing the ...
Ali Mahmoodirad, Hamed Ansory Savary
doaj   +1 more source

On the numerical solution of a free end-time homicidal chauffeur game* [PDF]

open access: yesESAIM: Proceedings and Surveys, 2021
A functional formulation of the classical homicidal chauffeur Nash game is presented and a numerical framework for its solution is discussed. This methodology combines a Hamiltonian based scheme with proximal penalty to determine the time horizon where ...
Calà Campana Francesca   +3 more
doaj   +1 more source

MODELO MATEMÁTICO DE INTEGRACIÓN DE PRODUCCIÓN E INVENTARIOS EN UNA RED LOGÍSTICA PLANTAS, DISTRIBUIDORES Y DETALLISTAS

open access: yesRevista Ingeniería, Matemáticas y Ciencias de la Información, 2022
This article presents a nonlinear programming mathematical model that coordinates inventories and production in alogistics network made up of plants, distributors, and retailers.
César Augusto Pineda Pérez
doaj   +1 more source

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