Genetic Algorithms Digest    Wednesday, 14 June 1989    Volume 3 : Issue 9

 - Send submissions to GA-List@AIC.NRL.NAVY.MIL
 - Send administrative requests to GA-List-Request@AIC.NRL.NAVY.MIL

Today's Topics:
	- GA-List Census
	- GENESIS Bug Fixes
	- Fortran GA Code
	- Software Request
	- ICGA-89 Proceedings

--------------------------------

Date:  14 Jun 89 09:09 EST
From: John Grefenstette <GA-List-Request@AIC.NRL.NAVY.MIL>
Subject: GA-List Census

Dear Subscribers:

First, let me add my congratulations to Ken De Jong and Dave Schaffer
for the excellent ICGA at GMU last week.  I found the conference very
enjoyable -- it was good to see old friends and make so many new ones.
Many exciting advances in the theory and practice of GAs were presented.

I'd like to keep the momentum rolling by encouraging everyone to submit
descriptions of future work to GA-List.  Submissions might be abstracts
of published papers, sketches of current experiments, or requests for
help.  It would especially helpful to have notices of GA-related papers
being presented at other conferences and workshops.

Finally, I'd like to update our surface address mailing list in order to
facilitate the distribution of announcements of future activities of the
International Society for Genetic Algorithms, and to help Kluwer with
its market survey concerning a possible GA Journal.  Please take a
minute to reply to this message, sending me your full mailing address,
along with your preferred e-mail address (the ones I use may be
out-of-date).  Please use the following format:

John J. Grefenstette
Navy Center for Applied Research in AI
Naval Research Lab
Washington, DC  20375-5000
GREF@AIC.NRL.NAVY.MIL

Thanks,
- John

--------------------------------

Date: Fri, 9 Jun 89 13:15:05 EDT
From: John Grefenstette <gref@aic.nrl.navy.mil>
Subject: GENESIS Bug Fixes

I was glad to see that GENESIS has helped so many people to get a quick
start on their research with GA's.  The number of users also inspired me
to announce a couple of bug-fixes that have arisen in the past few
months.  Here they are:

1. To eliminate a machine dependency concerning overflow, change the
declarations of "Seed", "OrigSeed", and "Initseed" from "int" to
"unsigned int" in the files "global.h", "extern.h", and "f4.c".  Also,
change the i/o format specifications for these variables from %d to %u
in files "format.h", "checkpoint.c" and "restart.c".  The original code
causes an overflow exception under SUN OS/4.0.

2. If you received a copy a GENESIS prior to 8 Dec 1988, you need to
edit "cross.c" as follows:

At line 81, change:
			temp = xpoint1;
			xpoint1 = xpoint2;
			xpoint2 = temp;
to:
			i = xpoint1;
			xpoint1 = xpoint2;
			xpoint2 = i;

Since temp is a char variable, the original code may cause
strange behavior if the bit-strings are longer than 255 bits.

Please pass any other bugs you have found back to me so that I can
incoporate the fixes in future versions.

- John

--------------------------------

Date:    17 May 89 07:24 -0800
From:    hpda!hp5003!01!kingsley_morse@sun.com
Subject: Fortran GA Code

Does anyone know where I can get some good GA code written
in Fortran? Thanks!

                                 Kingsley G. Morse Jr.
                                 (415) 594-1685

--------------------------------

Date: 31 May 89 07:26 EST
From: POWELL@crd.ge.com
Subject: Software Request

I am currently investigating different functional optimization
strategies for engineering design. My problem is that I am generating a
lot of data from each optimization algorithm and I need a
database/datamanager to organize, filter and analyze the data on my Sun
workstation.

With a database manager then I can automate the systematic analysis of
the massive amounts of data generated by the genetic algorithm during
optimization. In fact, I feel that the majority of my time is spent
manually editing datafiles so that I can perform an analysis.

I know of the PD version of Ingres but this would be overkill.  I am
looking for a simple database where concurrency is not an issue. The
optimization techniques will sequentially update the database after each
iteration. I would like to be able to select data from different runs,
perform some simple curve fitting, normalization, etc., and then ideally
graph or write out the results.

My mail address is powell@crd.ge.com

Regards
Dave
	
--------------------------------

Date: 12 Jun 89 10:43 -0700
From: Kristinn Kristinsson <KristinnK@PPC.UBC.CA>
Subject: ICGA-89 Proceedings

For those of us that were not able to attend the conference.
  Where do we get the proceedings?

Kristinn Kristinsson

[Moderator's Note:

The Proceedings of the Third International Conference on Genetic
Algorithms is available for $29.95 from:

Morgan Kaufmann, Inc.
P.O. Box 50490
Palo Alto, CA 94303-9953

The Proceedings from the first two conferences are available from

Lawrence Erlbaum Associates, Publishers
365 Broadway
Hillsdale, NJ 07642
(201) 666-4110

-JJG]

--------------------------------

End of Genetic Algorithms Digest
********************************

