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 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to this message, sending me your full mailing address, along with your preferred e-mail address (the ones I use may be out-of-date).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 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 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 ********************************