A convergence model for asynchronous parallel genetic algorithms
This paper describes and verifies a convergence model that allows the islands in a parallel genetic algorithm to run at different speeds, and to simulate the effects of communication or machine failure. The model extends on present theory of parallel genetic algorithms and furthermore it provides insight into the design of asynchronous parallel genetic algorithms that work efficiently on volatile and heterogeneous networks, such as cyclestealing applications working over the Internet. The model is adequate for comparing migration parameter settings in terms of convergence and fault tolerance, and a series of experiments show how the convergence is affected by varying the failure rate and the migration topology, migration rate, and migration interval. Experiments conducted show that while very sparse topologies are inefficient and failure-prone, even small increases in topology order result in more robust models with convergence rates that approach the ones found in fullg-connected topologies.
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|Item Type:||Conference Paper|
|Keywords:||parallel genetic algorithm, convergency, island model|
|Subjects:||Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > ARTIFICIAL INTELLIGENCE AND IMAGE PROCESSING (080100) > Neural Evolutionary and Fuzzy Computation (080108)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 2003 IEEE|
|Copyright Statement:||Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.|
|Deposited On:||17 Jul 2007|
|Last Modified:||29 Feb 2012 12:58|
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