Results 61 to 70 of about 385 (87)

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  

Evaluating the quality of image matrices in blockmodeling

open access: yesEURO Journal on Computational Optimization, 2015
One approach for analyzing large networks is to partition its nodes into classes where the nodes in a class have similar characteristics with respect to their connections in the network. A class is represented as a blockmodel (or image matrix).
Stefan Wiesberg, Gerhard Reinelt
doaj  

Exact solutions to a class of stochastic generalized assignment problems [PDF]

open access: yes
This paper deals with a stochastic Generalized Assignment Problem with recourse. Only a random subset of the given set of jobs will require to be actually processed.
Albareda-Sambola, Maria   +2 more
core   +1 more source

Complementarity-based nonlinear programming techniques for optimal mixing in gas networks

open access: yesEURO Journal on Computational Optimization, 2019
We consider nonlinear and nonsmooth mixing aspects in gas transport optimization problems. As mixed-integer reformulations of pooling-type mixing models already render small-size instances computationally intractable, we investigate the applicability of ...
FalkM. Hante, Martin Schmidt
doaj  

Improving strong branching by domain propagation

open access: yesEURO Journal on Computational Optimization, 2014
One of the essential components of a branch-and-bound based mixed-integer linear programming (MIP) solver is the branching rule. Strong branching is a method used by many state-of-the-art branching rules to select the variable to branch on.
Gerald Gamrath
doaj  

On global optimization with indefinite quadratics

open access: yesEURO Journal on Computational Optimization, 2017
We present an algorithmic framework for global optimization problems in which the non-convexity is manifested as an indefinite-quadratic as part of the objective function.
Marcia Fampa, Jon Lee, Wendel Melo
doaj  

Matheuristics for optimizing the network in German wagonload traffic

open access: yesEURO Journal on Computational Optimization, 2017
In this paper, we consider a capacitated multiple allocation hub location problem derived from a practical application in network design of German wagonload traffic.
Julia Sender   +3 more
doaj  

Solving wind farm layout optimization with mixed integer programs and constraint programs

open access: yesEURO Journal on Computational Optimization, 2014
The wind farm layout optimization problem is concerned with the optimal location of turbines within a fixed geographical area to maximize profit under stochastic wind conditions. Previously, it has been modeled as a maximum diversity (or p-dispersion-sum)
PeterY. Zhang   +3 more
doaj  

Optimizing compatible sets in wireless networks through integer programming

open access: yesEURO Journal on Computational Optimization, 2014
In wireless networks, the notion of compatible set refers to a set of radio links that can be simultaneously active with a tolerable interference. Finding a compatible set with maximum weighted revenue from the parallel transmissions is an important ...
Yuan Li   +3 more
doaj  

Tighter MIP formulations for the discretised unit commitment problem with min-stop ramping constraints

open access: yesEURO Journal on Computational Optimization, 2017
This paper elaborates compact MIP formulations for a discrete unit commitment problem with minimum stop and ramping constraints. The variables can be defined in two different ways.
Nicolas Dupin
doaj  

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