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The GA Playground: Griewank's Function
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A widely used multimodal test function
Formulation:
Minimize:
f(x) = 1/4000*sum(xi-100)^2 - prod((xi-100)/sqrt(i)) + 1
-600 <= x(i) <= 600
global minimum
f(x) = 0
x(i) = 0, i=1:n
Problem Specific Notes:
- The problem definition file is Griewank.par
- The file defines a 10-dimensions problem (n=10)
- The dimension can be changed by modifying he "Number of Genes" parameter
Instructions:
- The applet requires a browser that supports JDK 1.1.5 or above
- The applet has a relatively long loading time
- Hide browser's toolbars to make the whole applet visible without scrolling
- Optionally select 'Parameters' from the 'GA' menu to modify problem attributes
- Select 'Execute' from the 'GA' menu to run the program
- Status bar help tips can be toggled On or Off through the 'Options' menu
- Text window reporting can be toggled On or Off through the 'Options/Switches' menu
Ariel Dolan
aridolan@netvision.net.il
