Results 11 to 20 of about 455,231 (287)

Speeding up column generation for robust wireless network planning

open access: yesEURO Journal on Computational Optimization, 2013
The wireless network planning problem consists of base station placement and traffic node assignment to base stations. To incorporate traffic demand uncertainties, we follow the Γ-robustness approach by Bertsimas and Sim.
Grit Claßen   +2 more
doaj   +1 more source

A MIP framework for non-convex uniform price day-ahead electricity auctions

open access: yesEURO Journal on Computational Optimization, 2017
It is well known that a market equilibrium with uniform prices often does not exist in non-convex day-ahead electricity auctions. We consider the case of the non-convex, uniform-price Pan-European day-ahead electricity market “PCR” (Price Coupling of ...
Mehdi Madani, Mathieu Van Vyve
doaj   +1 more source

New exact solution approaches for the split delivery vehicle routing problem

open access: yesEURO Journal on Computational Optimization, 2018
In this study, we propose exact solution methods for the split delivery vehicle routing problem (SDVRP). We first give a new vehicle-indexed flow formulation for the problem and then a relaxation obtained by aggregating the vehicle-indexed variables over
Gizem Ozbaygin, Oya Karasan, Hande Yaman
doaj   +1 more source

Column generation algorithms for bi-objective combinatorial optimization problems with a min–max objective

open access: yesEURO Journal on Computational Optimization, 2018
Many practical combinatorial optimization problems can be described by integer linear programs having an exponential number of variables, and they are efficiently solved by column generation algorithms.
Christian Artigues   +2 more
doaj   +1 more source

Bilevel programming for price-based electricity auctions: a revenue-constrained case

open access: yesEURO Journal on Computational Optimization, 2015
This paper describes the application of bilevel programming to a class of real-life problems in the field of electric power systems. Within the context of electricity markets, market-clearing procedures, i.e., auction models, are used by an independent ...
Ricardo Fernández-Blanco   +2 more
doaj   +1 more source

Aportaciones al conocimiento florístico de la Sierra de Aracena (Huelva, España) [PDF]

open access: yes, 1985
A check list of the Sierra de Aracena (Huelva, Spain) is presented. A total of 900 vascular plants have been identificated.Se ha realizado un catálogo floristico de la Sierra de Aracena (Huelva, España), en el que se citan 900 táxones de plantas ...
Cabezudo, Baltasar, Rivera, J.
core   +4 more sources

An improved cut-and-solve algorithm for the single-source capacitated facility location problem

open access: yesEURO Journal on Computational Optimization, 2018
In this paper, we present an improved cut-and-solve algorithm for the single-source capacitated facility location problem. The algorithm consists of three phases.
SuneLauth Gadegaard   +2 more
doaj   +1 more source

Estructura factorial y fiabilidad del Cyberbullying Questionnaire (CBQ) y su complemento (CBQ-V) en adolescentes ecuatorianos

open access: yesActualidades en Psicología, 2020
Objetivo. Analizar la estructura factorial y la fiabilidad del Cyberbullying Questionnaire (CBQ), que mide la perpetración del cyberbullying, y además medir su complemento, la victimización (CBQ-V) en una muestra de adolescentes tungurahuenses.
Isabel Ramos-Noboa, Sra.   +2 more
doaj   +3 more sources

Pattern-based diving heuristics for a two-dimensional guillotine cutting-stock problem with leftovers

open access: yesEURO Journal on Computational Optimization, 2019
In the two-dimensional guillotine cutting-stock problem, the objective is to minimize the number of large plates used to cut a list of small rectangles.
François Clautiaux   +3 more
doaj   +1 more source

Pyrazolo[4,3-e]tetrazolo[1,5-b][1,2,4]triazine Sulfonamides as Novel Potential Anticancer Agents: Cytotoxic and Genotoxic Activities In Vitro

open access: yesMolecules, 2022
In this paper, we present for the first time the evaluation of cytotoxicity and genotoxicity of de novo synthesized pyrazolo[4,3-e]tetrazolo[1,5-b][1,2,4]triazine sulfonamides MM129, MM130, and MM131 in human tumor cell lines: HeLa, HCT 116, PC-3, and ...
Karol Bukowski   +4 more
doaj   +1 more source

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