[comp.ai.neural-nets] Need a neural net simulator

bandu@sunybcs. (Jagath SamaraBandu) (07/29/88)

I'm looking for a neural net simulator. Something on the lines of bpsim.c (BYTE Oct 87 pp155).  I'd really appreciate if someone could mail me the source of 
bpsim.c or something similar.

Many thanks in advance
 
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Jagath K. Samarabandu (716)-835-4639	|	bandu@cs.buffalo.edu
518, Lasalle Ave.,Buffalo,NY14215	|	v092r8c2@ubvms.bitnet
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demers@beowulf.ucsd.edu (David E Demers) (07/29/88)

In article <274@cs.Buffalo.EDU> bandu@sunybcs. (Jagath SamaraBandu) writes:
>I'm looking for a neural net simulator. Something on the lines of bpsim.c (BYTE Oct 87 pp155).  I'd really appreciate if someone could mail me the source of 
>bpsim.c or something similar.

Might I be the first (possibly of many, forgive this posting if so...)
to recommend volume 3 of the PDP series.  I don't have it in front of
me right now, but I'm positive it is entitled
"Explorations in Parallel and Distributed Processing" by McClelland
and Rumelhart, MIT Press, 1988.
It is only $30.  It contains code for back-prop as well as a number
of other models.  Can't beat the price!  Other good simulators are
SunNet (essentially only back propogation learning in feed-forward
networks, but easy to use on the Sun), and the Rochester connectionist
simulator (more things for the programmer to control than SunNet),
available from Rochester.  Sorry, don't remember the specific contact.
  
I haven't used bpsim.c, though I do have it and am mailing it to
you in a separate note.  Not enough time to play with everything!

>
>Many thanks in advance
> 
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>Jagath K. Samarabandu (716)-835-4639	|	bandu@cs.buffalo.edu
>518, Lasalle Ave.,Buffalo,NY14215	|	v092r8c2@ubvms.bitnet
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Dave DeMers				demers@cs.ucsd.edu
UCSD Department of CSE
C-014
La Jolla, CA

brickman@cme-durer.ARPA (Jonathan E. Brickman) (07/29/88)

----- News saved at 29 Jul 88 13:14:09 GMT
One very capable machine worth mentioning is Masscomp.  It runs 4 or more
25 MHz 68030's, 128+ megs RAM, and X-Windows over Unix.  It runs real-time
Unix, which reportedly allows any or all of the CPUs to run Unix while
those not running Unix dedicate themselves to computation and I/O.  This
machine may well outperform your hypothetical machine.  It probably outprices
it as well:  $350K for the above system.
||Jonathan E. Brickman



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One very capable machine worth mentioning is Masscomp.  It runs 4 or more
25 MHz 68030's, 128+ megs RAM, and X-Windows over Unix.  It runs real-time
Unix, which reportedly allows any or all of the CPUs to run Unix while
those not running Unix dedicate themselves to computation and I/O.  This
machine may well outperform your hypothetical machine.  It probably outprices
it as well:  $350K for the above system.
||Jonathan E. Brickman



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Does anyone know if there exists a network, simulated or digital or
analog hardware, which will allow a non-selforganizing network of
multiple million neurons?  I am looking for a very fast way to achieve
image mapping capability, and so far it looks like I go with either
a heavily parallel multi-CPU system or a really good neural net.
||Jonathan E. Brickman