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SAINT
2008
IEEE
14 years 4 months ago
Variable Neighborhood Search for a Prize Collecting Capacity Constrained Connected Facility Location Problem
We present a Variable Neighborhood Search approach for a network design problem occurring in real world when the bandwidth of an existing network shall be enhanced. Using two diff...
Markus Leitner, Günther R. Raidl
ERCIMDL
2010
Springer
144views Education» more  ERCIMDL 2010»
13 years 11 months ago
Capacity-Constrained Query Formulation
Given a set of keyphrases, we analyze how Web queries with these phrases can be formed that, taken altogether, return a specified number of hits. The use case of this problem is a ...
Matthias Hagen, Benno Stein
GECCO
2007
Springer
168views Optimization» more  GECCO 2007»
14 years 4 months ago
Sex and death: towards biologically inspired heuristics for constraint handling
Constrained continuous optimization is still an interesting field of research. Many heuristics have been proposed in the last decade. Most of them are based on penalty functions....
Oliver Kramer, Stephan Brügger, Dejan Lazovic
GECCO
2006
Springer
143views Optimization» more  GECCO 2006»
14 years 1 months ago
Hybrid search for cardinality constrained portfolio optimization
In this paper, we describe how a genetic algorithm approach added to a simulated annealing (SA) process offers a better alternative to find the mean variance frontier in the portf...
Miguel A. Gomez, Carmen X. Flores, Maria A. Osorio
COR
2004
139views more  COR 2004»
13 years 9 months ago
A tabu search heuristic for the vehicle routing problem with time windows and split deliveries
The routing of a fleet of vehicles to service a set of customers is important in the field of distribution. Vehicle Routing Problems (VRP) arise in many real-life applications wit...
Sin C. Ho, Dag Haugland