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- Newsgroups: comp.ai.genetic
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!hobbes.physics.uiowa.edu!news.iastate.edu!IASTATE.EDU!danwell
- From: danwell@IASTATE.EDU (Daniel A Ashlock)
- Subject: Re: So, genetic algorithms have nothing to do with genetics?
- Message-ID: <1993Jan21.130800@IASTATE.EDU>
- Sender: news@news.iastate.edu (USENET News System)
- Reply-To: danwell@IASTATE.EDU (Daniel A Ashlock)
- Organization: Iowa State University
- References: <1jlmb2INNjp4@gaia.ucs.orst.edu>
- Date: Thu, 21 Jan 1993 19:08:00 GMT
- Lines: 63
-
- In article <1jlmb2INNjp4@gaia.ucs.orst.edu>, choup@ava.bcc.orst.edu (Ping Chou)
- writes:
- >
- > Or the development of genetic algorithms has completed?
- >
- > Isn't it true that selection/mating/mutation/chromosome/hybrid/
- > genotype/phenotype/gene/... are taken from genetics?
-
- The words yes, but genetic algorithms go far beyond the biological genetic
- model. There are a number of papers on Lamarckian genetic algorithms, for
- example. Lamarck is a discarded reject in genetic theory; in genetic algorithms
- his ideas are useful.
-
- I suppose what I'm getting at here is the point Chris Langston makes when he
- attempts to difine the field of Artificial Life. He says Alife is an attempt
- to study life as it can be rather than as it is. The practical code-hacking
- implications of this are that while biology has benn and will continue to
- be a source of insparation one cannot let it be a strait jacket.
-
- > Don't you think you may be able to discover new algorithms from
- > studying genetics?
-
- Well, biology in general actually, but yes I'd guesstimate a roughly 100%
- chance that there are good ideas for genetic algorithms lurking in biology.
- The paper I mentioned last week (Iterated Prisoner's Dillemma with Choice and
- Refusal) studies the effect of rational partner selection on a genetic
- algorithm. Our inspiration for this was mate selection behavior in biology.
- The effect was startling - the algorithm converged to places it never went
- before.
-
- The problem is that taking a pile of courses won't help. I've taken courses
- and they consist of irrelevant trivia and foundational material valuable to work
- within the discipline. They seldom give the gestalt one needs to rip off good
- ideas. I maintain reading Science and Science news is a better way to get the
- cross specialization you need to be a better GA programmer.
-
- > Do you really believe the complete genome of HIV is just a 4-state
- > bits encoded string?
-
- Since there are at least thousands of HIV pseudospieceis, no. On the
- other hand the hardware we evolve our stings on, like my DEC station 3100,
- is considerably less sophistocated than the hardware an HIV virus runs on,
- a human cell. The biology used to "run" a virus is roughly totally unrelated
- to the hardware used to run a GA.
-
- > Then please, give youself a chance, take a look at any modern
- > genetics text book, and be a cross-discipline expert.
-
- You seem confused as to the source of knowledge... ...the very best thing
- you can do is ask an expert a specific question and ask questions while he
- answers until you understand. Reading Science will prevent you from being so
- ignorant that said expert will refuse to talk to you.
-
- > --Ping
- >
- > BTW, I would appreciate any reasonable arguments because I'm trying
- > to learn ai-genetic from the genetics side.
-
- Good luck.
-
- Dan
- Danwell@IASTATE.EDU
-
-