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GECCO
2005
Springer
109views Optimization» more  GECCO 2005»
15 years 10 months ago
A hybrid evolutionary algorithm for the p-median problem
A hybrid evolutionary algorithm (EA) for the p-median problem consist of two stages, each of which is a steady-state hybrid EA. These EAs encode selections of medians as subsets o...
István Borgulya
156
Voted
IOR
2006
93views more  IOR 2006»
15 years 5 months ago
A Branch-and-Price Algorithm for the Multilevel Generalized Assignment Problem
The multilevel generalized assignment problem (MGAP) is a variation of the generalized assignment problem, in which agents can execute tasks at different efficiency levels with di...
Alberto Ceselli, Giovanni Righini
172
Voted
ICTAI
2003
IEEE
15 years 10 months ago
A Diversity-Controlling Adaptive Genetic Algorithm for the Vehicle Routing Problem with Time Windows
This paper presents an adaptive genetic algorithm (GA) to solve the Vehicle Routing Problem with Time Windows (VRPTW) to near optimal solutions. The algorithm employs a unique dec...
Kenny Qili Zhu
WEA
2007
Springer
138views Algorithms» more  WEA 2007»
15 years 11 months ago
A Robust Branch-Cut-and-Price Algorithm for the Heterogeneous Fleet Vehicle Routing Problem
This paper presents a robust branch-cut-and-price algorithm for the Heterogeneous Fleet Vehicle Routing Problem (HFVRP), vehicles may have distinct capacities and costs. The colum...
Artur Alves Pessoa, Marcus Poggi de Aragão,...
GECCO
2008
Springer
183views Optimization» more  GECCO 2008»
15 years 6 months ago
UMDAs for dynamic optimization problems
This paper investigates how the Univariate Marginal Distribution Algorithm (UMDA) behaves in non-stationary environments when engaging in sampling and selection strategies designe...
Carlos M. Fernandes, Cláudio F. Lima, Agost...