A genetic algorithm for the generalised assignment problem
Computers and Operations Research
Artificial Intelligence
Tabu Search
MICAI '00 Proceedings of the Mexican International Conference on Artificial Intelligence: Advances in Artificial Intelligence
ACO Applied to Group Shop Scheduling: A Case Study on Intensification and Diversification
ANTS '02 Proceedings of the Third International Workshop on Ant Algorithms
Enhancements to extremal optimisation for generalised assignment
ACAL'07 Proceedings of the 3rd Australian conference on Progress in artificial life
Identification of Hindmarsh-Rose neuron networks using GEO metaheuristic
ICSI'11 Proceedings of the Second international conference on Advances in swarm intelligence - Volume Part I
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It is only relatively recently that extremal optimisation (EO) has been applied to combinatorial optimisation problems. As such, there have been only a few attempts to extend the paradigm to include standard search mechanisms that are routinely used by other techniques such as genetic algorithms, tabu search and ant colony optimisation. The key way to begin this process is to augment EO with attributes that it naturally lacks. While EO does not get confounded by local optima and is able to move through search space unencumbered, one of the major issues is to provide it with better search intensification strategies. In this paper, two strategies that compliment EO's mechanics are introduced and are used to augment an existing solver framework. Results, for single and population versions of the algorithm, demonstrate that intensification aids the performance of EO.