Selection Operators for Genetic Algorithms

Question

Does anybody know of a definitive list of selection operators for Genetic Algorithms ? I am looking for methods other than the usual "Roulette Wheel" or "Tournament" selection methods.

Most lists/literature I have seen use the prase "and other lesser used methods" without saying what they are.

Thanks,

NWS.

Answer 1

"and other lesser used methods" usually means "whatever someone else came up with and used only once or twice" :)

That said, some other relatively common selection operators are

• Top Percent: randomly choose from the top N percent
• Best: choose the best
• Random: just random
• Truncation Selection: see wikipedia
• Boltzmann selection: where selection pressure increases...

and maybe 1 or 2 others.