Tracer spectrum : a visualisation method for distributed evolutionary computation

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Title: Tracer spectrum : a visualisation method for distributed evolutionary computation
Authors: O'Neill, Michael
Brabazon, Anthony
Hemberg, Erik
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Date: Sep-2011
Online since: 2012-03-27T14:28:37Z
Abstract: We present a novel visualisation method for island-based evolutionary algorithms based on the concept of tracers as adopted in medicine and molecular biology to follow a biochemical process. For example, a radioisotope or dye can be used to replace a stable component of a biological compound, and the signal from the radioisotope can be monitored as it passes through the body to measure the compound’s distribution and elimination from the system. In a similar fashion we attach a tracer dye to individuals in each island, where each individual in any one island is marked with the same colour, and each island then has its own unique colour signal. We can then monitor how individuals undergoing migration events are distributed throughout the entire island ecosystem, thereby allowing the user to visually monitor takeover times and the resulting loss of diversity. This is achieved by visualising each island as a spectrum of the tracer dye associated with each individual. Experiments adopting different rates of migration and network connectivity confirm earlier research which predicts that island models are extremely sensitive to the size and frequency of migrations
Funding Details: Science Foundation Ireland
Type of material: Journal Article
Publisher: Springer
Journal: Genetic Programming and Evolvable Machines
Volume: 12
Issue: 2
Start page: 161
End page: 171
Copyright (published version): 2010 Springer
Keywords: Evolutionary computationVisualisationDistributed EC
Subject LCSH: Evolutionary computation
Tracers (Chemistry)
DOI: 10.1007/s10710-010-9125-y
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Language: en
Status of Item: Peer reviewed
Appears in Collections:Computer Science Research Collection
CASL Research Collection

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