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3618 psyphiroth.nebu Offline Send Email Nov 7, 2007
6:22 am
... are ... is ... their ... that ... point ... Could you be kind enough to explain how speciation parameters work in NEAT? What if I change these parameters?...
3619 petar_chervenski
petar_cherve... Offline Send Email
Nov 7, 2007
9:00 am
Well basically you need to understand how two genotypes (NNs) are compared so that it is determined whether they are in the same species or not. The total...
3620 psyphiroth.nebu Offline Send Email Nov 7, 2007
9:42 am
Thanks for your kindness, but, well, I actually know what these parameters mean, but *don't* know how to decide the parameter values in a specific problem. I...
3621 petar_chervenski
petar_cherve... Offline Send Email
Nov 7, 2007
9:52 am
Hm. It is hard to tell you why, but.. maybe the population size is too small? If the population size is too small and there are many species, there is not...
3622 psyphiroth.nebu Offline Send Email Nov 7, 2007
10:00 am
Well, do I have to use a GA to determine the appropriate parameters? I think the network stucture is noly related to output, no matter the input, is that...
3623 petar_chervenski
petar_cherve... Offline Send Email
Nov 7, 2007
10:14 am
Using a GA to determine the best parameters will require a lot of CPU time. Every individual running its own evolution.. Nah, this is too computationally...
3624 psyphiroth.nebu Offline Send Email Nov 7, 2007
10:31 am
Sigh, so it will be a long night...
3625 Emyr James
ej_1973 Offline Send Email
Nov 7, 2007
11:02 am
Maybe the thing to do is to run a study of what happens for a range of different parameters for a few different test problems, then write up the results as a...
3626 Jeff Clune
jeffreyclune Offline Send Email
Nov 7, 2007
2:45 pm
Beware: evolution is very bad at choosing good settings for evolution. That's in addition to all of the extra computation time. Cf. Clune, J., Goings, S.,...
3627 Stephen Waits
stevewaits Offline Send Email
Nov 7, 2007
3:18 pm
... This is a rather broad statement, and, paper or not, I don't buy it. I believe a Differential Evolution would work *very* well to choose NEAT parameters. ...
3628 Emyr James
ej_1973 Offline Send Email
Nov 7, 2007
3:30 pm
There may be some mileage in using multi-objective evolution where instead of using parameters, the things they change are factored in as extra dimensions to...
3629 Jeff Clune
jeffreyclune Offline Send Email
Nov 7, 2007
4:06 pm
I recognize it is a broad statement, but after doing research on this subject for a few years it is what I have concluded. I am currently working on a...
3630 afcarl2 Offline Send Email Nov 7, 2007
4:46 pm
The below posts dated 02/03/07, 12/02/06, 10/18/06 and 10/12/06, may be applicable. ##################### Post Dated: 02/03/07: ##################### The...
3631 afcarl2 Offline Send Email Nov 7, 2007
7:39 pm
Your point could be interpreted to be substantiated, if you were to start your parameter evolution from scratch. But, if you use the starting genome as the...
3632 Jeff Clune
jeffreyclune Offline Send Email
Nov 7, 2007
7:54 pm
Are you saying that because you have tried it, or because you think that starting with a good set of parameters on the genome it would get better (or stay as...
3633 afcarl2 Offline Send Email Nov 7, 2007
8:22 pm
Based upon experience (i.e. Supervisor NEAT). And also, yes, it is profoundly more effective to start with your best "knowledge" to date, whether supervisor...
3634 Jeff Clune
jeffreyclune Offline Send Email
Nov 7, 2007
8:37 pm
It is very cool that you have supervisor neat going. I could not find the top-level result of the proposed experiment in there. Do the runs with an evolving...
3635 afcarl2 Offline Send Email Nov 7, 2007
8:59 pm
a) The actual experiment is addressed (i.e. not proposed). b) Yes, on all problems addressed to date. c) Yes, digest the meaning/implications in the data...
3636 afcarl2 Offline Send Email Nov 10, 2007
10:58 pm
This brief tutorial is intended to convey a means by which a starting genome may be created to correspond to a desired starting point. This usually represents...
3637 petar_chervenski
petar_cherve... Offline Send Email
Nov 13, 2007
11:27 pm
Well what about just saving the best genome from previous runs? Incremental evolution? I know this introduces potentially unnecessary complexity but that...
3638 afcarl2 Offline Send Email Nov 14, 2007
4:11 pm
Has there been any work to date on implementing recessive genes in a NEAT genome? I am interested in embedding additional information in a genome without...
3639 Derek James
blue5432 Offline Send Email
Nov 14, 2007
4:37 pm
Andy, Not that I know of...maybe Ken knows of NEAT implementations of recessive genes. At one point with ANJI, we discussed going down this route. Since genes...
3640 afcarl2 Offline Send Email Nov 14, 2007
5:05 pm
Derek, What prompts my question is an experiment which employs a local gradient search, utilizing the organism output vector as the start point. The result is...
3641 Kenneth Stanley
kenstanley01 Offline Send Email
Nov 14, 2007
10:19 pm
There has been work with GAs that have diploid genomes but no work specifically with NEAT that I know of. Here's a general GA paper on the subject: ...
3642 aimike002 Offline Send Email Nov 15, 2007
10:00 pm
... Andy, Not NEAT related, but my copy of Melanie Mitchells intro to GAs refers to work by Collins and Jeferson in one context , then adds in that a different...
3643 Cícero Augusto
ciceroaugust... Offline Send Email
Nov 25, 2007
4:30 am
Hi Stanley and everyone in the list, I would like to know if there is any kind of implementation and experiments done using the NEAT with self-organizing maps ...
3644 afcarl2 Offline Send Email Nov 26, 2007
5:06 am
Investigation of redundant organisms in NEAT using standard param values has shown an approximate 10 percent redundancy factor as follows: Population Size: 100...
3645 Colin Green
alienseedpod Offline Send Email
Nov 26, 2007
9:27 am
Hi, It would be interesting to see the percentage figure for other population sizes, # of inputs/outputs etc. to see if the problem hovers around the 10% ...
3646 Kenneth Stanley
kenstanley01 Offline Send Email
Nov 26, 2007
2:23 pm
Andy, thanks for pointing this issue out. Those are interesting statistics. It is indeed best to avoid reevaluating an organism that is the same as one that...
3647 Kenneth Stanley
kenstanley01 Offline Send Email
Nov 26, 2007
2:32 pm
Cicero, I don't know of any published work in which NEAT was combined with a SOM. However, in my classes students have used NEAT to evolve the function that...
Messages 3618 - 3647 of 5820   Oldest  |  < Older  |  Newer >  |  Newest
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