Results 11 to 20 of about 37 (35)

The maximum flow in dynamic networks [PDF]

open access: yesComputer Science Journal of Moldova, 2005
The dynamic maximum flow problem that generalizes the static maximum flow problem is formulated and studied. We consider the problem on a network with capacities depending on time, fixed transit times on the arcs, and a given time horizon.
Maria A. Fonoberova, Dmitrii D. Lozovanu
doaj  

Switch 2.0: A modern platform for planning high-renewable power systems

open access: yesSoftwareX, 2019
Switch 2.0 is an open-source platform for planning transitions to low-emission electric power systems, designed to satisfy 21st century grid planning requirements.
Josiah Johnston   +3 more
doaj   +1 more source

An interior-point method for nonlinear optimization problems with locatable and separable nonsmoothness

open access: yesEURO Journal on Computational Optimization, 2015
Many real-world optimization models comprise nonconvex and nonsmooth functions leading to very hard classes of optimization models. In this article, a new interior-point method for the special, but practically relevant class of optimization problems with
Martin Schmidt
doaj   +1 more source

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   +1 more source

Evaluating performance of image segmentation criteria and techniques

open access: yesEURO Journal on Computational Optimization, 2013
The image segmentation problem is to delineate, or segment, a salient feature in an image. As such, this is a bipartition problem with the goal of separating the foreground from the background. An NP-hard optimization problem, the Normalized Cut problem,
DoritS. Hochbaum   +2 more
doaj   +1 more source

Branch-and-price-and-cut for large-scale multicommodity capacitated fixed-charge network design

open access: yesEURO Journal on Computational Optimization, 2014
We present a branch-and-price-and-cut algorithm for solving large-scale instances of the multicommodity capacitated fixed-charge network design problem.
Bernard Gendron, Mathieu Larose
doaj   +1 more source

Compact ILP formulations for the routing and wavelength assignment problem in the design of optical transport networks with regenerators

open access: yesEURO Journal on Computational Optimization, 2016
This paper addresses two variants of the routing and wavelength assignment problem arising in the context of optical transport networks. In both variants, we address the case where the physical coverage of the fiber network is such that regenerators, to ...
Amaro de Sousa   +2 more
doaj   +1 more source

Road network emergency accessibility planning after a major earthquake

open access: yesEURO Journal on Computational Optimization, 2016
In the aftermath of disasters such as major earthquakes, several roads may be blocked by rubble and the population tends to search refugee in certain gathering points of the city.
CelsoSatoshi Sakuraba   +5 more
doaj   +1 more source

The minimum cost multicommodity flow problem in dynamic networks and an algorithm for its solving [PDF]

open access: yesComputer Science Journal of Moldova, 2005
The dynamic version of the minimum cost multicommodity flow problem that generalizes the static minimum cost multicommodity flow problem is formulated and studied.
Maria A. Fonoberova, Dmitrii D. Lozovanu
doaj  

Polynomial Time Algorithm for Determining Max-Min Paths in Networks and Solving Zero Value Cyclic Games [PDF]

open access: yesComputer Science Journal of Moldova, 2005
We study the max-min paths problem, which represents a game version of the shortest and the longest paths problem in a weighted directed graph. In this problem the vertex set V of the weighted directed graph G=(V,E) is divided into two disjoint subsets ...
Dmitrii D. Lozovanu
doaj  

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