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<title>The GA Playground: Rastrigin's Function</title>
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<META HTTP-EQUIV="description" CONTENT="A general GA (Genetic Algorithm) toolkit implemented in Java">
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<Center><H3>The GA Playground: Rastrigin's Function</H3></Center>
<Center><H4>A widely used multimodal test function</H4></Center>
<p>
<H4>Formulation:</H4>
Minimize:<p>
f(x) = 10.0*n + sum(x(i)^2 - 10.0*cos(2*Pi*x(i)))<p>
-5.12 <= x(i) <= 5.12<p>
<H4>global minimum</H4>
f(x) = 0<p>
x(i) = 0, i=1:n <p>
<H4>Problem Specific Notes:</H4>
<UL>
<LI>The problem definition file is <A HREF="Rastrigin.par">Rastrigin.par</A>
<LI>The file defines a 10-dimensions problem (n=10)
<LI>The dimension can be changed by modifying he "Number of Genes" parameter
</UL>
<p>
<H4>Instructions:</H4>
<UL>
<LI>The applet requires a browser that supports JDK 1.1.5 or above
<LI>The applet has a relatively long loading time
<LI>Hide browser's toolbars to make the whole applet visible without scrolling
<LI>Optionally select 'Parameters' from the 'GA' menu to modify problem attributes
<LI>Select 'Execute' from the 'GA' menu to run the program
<LI>Status bar help tips can be toggled On or Off through the 'Options' menu
<LI>Text window reporting can be toggled On or Off through the 'Options/Switches' menu
</UL>
<p align="center">
<applet width="750" height="500" code="GaaApplet.class" archive="tabsplitter.jar,ScsGrid.jar,gaa.jar">
<PARAM NAME =paramFileName value="Rastrigin.par">
You either do not have Java support or it is disabled in your browser</applet>
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<Address><B>Ariel Dolan</B><br>
<A href="mailto:aridolan@netvision.net.il">aridolan@netvision.net.il</A><br>
Tel. 972-3-7526264<br>
Fax. 972-3-5752173</Address>
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