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Parallel hyperheuristics for the frequency assignment problem : Special issue on nature inspired cooperative strategies for optimization

Content Provider	Springer Nature Link
Author	Segura, Carlos Miranda, Gara León, Coromoto
Copyright Year	2010
Abstract	This work presents a set of approaches used to deal with the frequency assignment problem (FAP), which is one of the key issues in the design of GSM networks. The used formulation of FAP is focused on aspects which are relevant for real-world GSM networks. A memetic algorithm, together with the specifically designed local search and variation operators, are presented. The memetic algorithm obtains good quality solutions but it must be adapted for each instance to be solved. A parallel hyperheuristic-based model was used to parallelize the approach and to avoid the requirement of the adaptation step of the memetic algorithm. The model is a hybrid algorithm which combines a parallel island-based scheme with a hyperheuristic approach. The main operation of the island-based model is kept, but the configurations of the memetic algorithms executed on each island are dynamically mapped. The model grants more computational resources to those configurations that show a more promising behavior. For this purpose two different criteria have been used in order to select the configurations. The first one is based on the improvements that each configuration is able to achieve along the executions. The second one tries to detect synergies among the configurations, i.e., detect which configurations obtain better solutions when they are cooperating. Computational results obtained for two different real-world instances of the FAP demonstrate the validity of the proposed model. The new designed schemes have made possible to improve the previously known best frequency plans for a real-world network.
Starting Page	33
Ending Page	49
Page Count	17
File Format	PDF
ISSN	18659284
Journal	Memetic Computing
Volume Number	3
Issue Number	1
e-ISSN	18659292
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-06-10
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Frequency assignment problem Memetic algorithms Hyperheuristics Parallel Island-based models Cooperative strategies Bioinformatics Artificial Intelligence (incl. Robotics) Statistical Physics, Dynamical Systems and Complexity Applications of Mathematics Control Robotics Mechatronics ApplicationMathematics/Computational Methods of Engineering
Content Type	Text
Resource Type	Article
Subject	Control and Optimization Computer Science

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