Evolutionary Computation Glossary

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H

HAPLOID:

(biol) This refers to cell which contains a single CHROMOSOME or set of chromosomes, each consisting of a single sequence of GENEs. An example is a GAMETE. cf DIPLOID.

In EC, it is usual for INDIVIDUALs to be HAPLOID.

HARD SELECTION:

SELECTION acts on competing INDIVIDUALs. When only the best available individuals are retained for generating future progeny, this is termed "hard selection." In contrast, "soft selection" offers a probabilistic mechanism for maitaining individuals to be PARENTs of future progeny despite possessing relatively poorer objective values.

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Hitch Hiker's Guide to Evolutionary Computation, Issue 7.4, released 18 January 2000
Copyright © 1993-2000 by J. Heitkötter and D. Beasley, all rights reserved.