Article View: comp.ai.genetic
Article #64Re: Evolution vs Coevolution
From: Alan Filipski
Date: Mon, 25 Jan 1993 21:09
Date: Mon, 25 Jan 1993 21:09
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In article <1993Jan24.103719@IASTATE.EDU> danwell@IASTATE.EDU (Daniel A Ashlock) writes: > A function optimizer has a global standard of fitness, the height of the >function being optimized. A GA playing prisoner's dillemma has a changing >fitness function based on the particular mix of player's in the algorithm. >I call these two sorts of genetic algorithms evolutionary and coevolutionary. would it not be more accurate, in terms of existing biological usage, to talk about "hard" vs. "soft" selection? "coevolution" usually refers to the evolution of distinct, interacting populations, such as host/parasite, not intraspecific competition as you imply in the above example. it's not a good idea to change the meaning of existing terms. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ( Alan Filipski, GTX Corp, 8836 N. 23rd Avenue, Phoenix, Arizona 85021, USA ) ( INTERNET: al@gtx.com UUCP: uunet!gtx!al PHONE: (602)870-1696 ) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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arc1-ca.pugleaf.net!sparky!uunet!charon.amdahl.com!pacbell.com!decwrl!elroy.jpl.nasa.gov!swrinde!gatech!hubcap!ncrcae!ncrhub2!ncrgw2!psinntp!gtx!alReferences:
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Newsgroups: comp.ai.genetic Path: arc1-ca.pugleaf.net!sparky!uunet!charon.amdahl.com!pacbell.com!decwrl!elroy.jpl.nasa.gov!swrinde!gatech!hubcap!ncrcae!ncrhub2!ncrgw2!psinntp!gtx!al From: al@gtx.uucp (Alan Filipski) Subject: Re: Evolution vs Coevolution Message-ID: <1993Jan25.210920.23438@gtx.uucp> Organization: GTX Corporation, Phoenix AZ References: <1993Jan24.103719@IASTATE.EDU> Date: Mon, 25 Jan 1993 21:09:20 GMT Lines: 17