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3d simulation

P: n/a
I am interested in coding an app which uses physics and 3d and neural
nets and genetics. Any pointers?

Jul 11 '06 #1
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alimoe wrote:
I am interested in coding an app which uses physics and 3d and neural
nets and genetics. Any pointers?

Open GL Python programming

http://www.google.com/search?hl=en&r...python&spell=1
http://pyopengl.sourceforge.net/

Neural Nets

http://www.google.com/search?hl=en&l...on&btnG=Search

Genetic Programming or Genetic Algorithms?

http://sourceforge.net/projects/pygp/
--Cheers

Jul 11 '06 #2

P: n/a
Genetic Programming or Genetic Algorithms?
whats the difference?

Jul 11 '06 #3

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I will create a "robot" that crawls over terrain that looks like the
picture here:

http://pygp.sourceforge.net/index.php3?name=runs

Jul 11 '06 #4

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alimoe wrote:
Genetic Programming or Genetic Algorithms?

whats the difference?

Genetic Programming:
is an automated methodology inspired by biological evolution to find
computer programs that best perform a user-defined task.

http://en.wikipedia.org/wiki/Genetic_Programming

Genetic Algorithms: search technique used in computer science to find
approximate solutions to optimization and search problems.

http://en.wikipedia.org/wiki/Genetic_algorithms

Jul 11 '06 #5

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alimoe wrote:
I will create a "robot" that crawls over terrain that looks like the
picture here:

http://pygp.sourceforge.net/index.php3?name=runs
is this a real robot or a computer simulation?

Jul 11 '06 #6

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alimoe wrote:
I am interested in coding an app which uses physics and 3d and neural
nets and genetics. Any pointers?
PyODE for the physics part.
Carl Banks

Jul 11 '06 #7

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alimoe wrote:
>Genetic Programming or Genetic Algorithms?

whats the difference?
Genetic algorithms usually involve the manipulation of bit strings.
Genetic programming usually involves more program-like constructs, such
as Lisp s-expressions.

--
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-- Leo Rosten
Jul 11 '06 #8

P: n/a

Erik Max Francis wrote:
alimoe wrote:
Genetic Programming or Genetic Algorithms?
whats the difference?

Genetic algorithms usually involve the manipulation of bit strings.
Where bit strings is the the "dna" and each bit in the string
represents some value

Jul 11 '06 #9

P: n/a
placid wrote:
>
alimoe wrote:
Genetic Programming or Genetic Algorithms?

whats the difference?


Genetic Programming:
is an automated methodology inspired by biological evolution to find
computer programs that best perform a user-defined task.

http://en.wikipedia.org/wiki/Genetic_Programming

Genetic Algorithms: search technique used in computer science to find
approximate solutions to optimization and search problems.

http://en.wikipedia.org/wiki/Genetic_algorithms
I would tend to think that Lisp is more suited for Genetic Programming than
Python is. However, it is possible to do. Heck, I even had the crazy idea
of doing Genetic Programming in C++ once, however ugly that would've
been!!!!!

Actually, there is an AI project that I'm doing in Python rather than Lisp
because Python is much better supported. A pity, really, since Lisp has so
much more power and expressiveness. Alas, Python has extensive libraries
and are well documented to boot. Only an academic would have the time to do
anything with Lisp. :-(

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Jul 14 '06 #10

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Edmond Dantes wrote:
placid wrote:

alimoe wrote:
Genetic Programming or Genetic Algorithms?

whats the difference?

Genetic Programming:
is an automated methodology inspired by biological evolution to find
computer programs that best perform a user-defined task.

http://en.wikipedia.org/wiki/Genetic_Programming

Genetic Algorithms: search technique used in computer science to find
approximate solutions to optimization and search problems.

http://en.wikipedia.org/wiki/Genetic_algorithms

I would tend to think that Lisp is more suited for Genetic Programming than
Python is. However, it is possible to do. Heck, I even had the crazy idea
of doing Genetic Programming in C++ once, however ugly that would've
been!!!!!
My university (RMIT) has a framework for doing Genetic Programming in
C++ and it was really ugly at all.

Jul 14 '06 #11

P: n/a
Edmond Dantes wrote:
I would tend to think that Lisp is more suited for Genetic Programming than
Python is. However, it is possible to do. Heck, I even had the crazy idea
of doing Genetic Programming in C++ once, however ugly that would've
been!!!!!

Actually, there is an AI project that I'm doing in Python rather than Lisp
because Python is much better supported. A pity, really, since Lisp has so
much more power and expressiveness. Alas, Python has extensive libraries
and are well documented to boot. Only an academic would have the time to do
anything with Lisp. :-(
I'm not sure how important expressiveness is for GP. The number of
operations on programs you have to support is quite small
(recombination, mutation, duplication, anything else?), and any
advantage LISP has in handling the tree structures is probably not all
that important.

Of course, the big advantage of LISP is the data/code equivalence. In
LISP, you can just eval the programs, whereas in Python you have to
expend quite a bit of effort running them. And that's no small thing.
It's not too bad, though. I've done GP in Python myself, and I it was
pretty straightforward to convert the program trees into expressions
(to be evaled in Python, or compiled and executed in C or Fortran).

But there's really no question that genetic programming is a problem
tailor-made for LISP.
Carl Banks

Jul 14 '06 #12

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placid wrote:
is this a real robot or a computer simulation?
Just a sim, but the more I think about it, the more realism it seems
like I need.

Carl Banks wrote about PyODE. I thnk Soya or PySoy is integrating this
soon, so I will be looking into that.

thx

Jul 26 '06 #13

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