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IPCO
2004
93views Optimization» more  IPCO 2004»
13 years 11 months ago
Semi-continuous Cuts for Mixed-Integer Programming
We study the convex hull of the feasible set of the semi-continuous knapsack problem, in which the variables belong to the union of two intervals. Besides being important in its o...
I. R. de Farias
JGO
2008
83views more  JGO 2008»
13 years 10 months ago
Computations with disjunctive cuts for two-stage stochastic mixed 0-1 integer programs
Two-stage stochastic mixed-integer programming (SMIP) problems with recourse are generally difficult to solve. This paper presents a first computational study of a disjunctive cut...
Lewis Ntaimo, Matthew W. Tanner
GD
2005
Springer
14 years 3 months ago
A Mixed-Integer Program for Drawing High-Quality Metro Maps
In this paper we investigate the problem of drawing metro maps which is defined as follows. Given a planar graph G of maximum degree 8 with its embedding and vertex locations (e.g...
Martin Nöllenburg, Alexander Wolff
HM
2009
Springer
165views Optimization» more  HM 2009»
14 years 2 months ago
Solving a Video-Server Load Re-Balancing Problem by Mixed Integer Programming and Hybrid Variable Neighborhood Search
Abstract. A Video-on-Demand system usually consists of a large number of independent video servers. In order to utilize network resources as efficiently as possible the overall net...
Jakob Walla, Mario Ruthmair, Günther R. Raidl
TVCG
2011
120views more  TVCG 2011»
13 years 5 months ago
Drawing and Labeling High-Quality Metro Maps by Mixed-Integer Programming
—Metro maps are schematic diagrams of public transport networks that serve as visual aids for route planning and navigation tasks. It is a challenging problem in network visualiz...
Martin Nöllenburg, Alexander Wolff