| Last updated October 1, 2012 |
Software Available for PDP Modeling
|
Romanian translation
by Maxim Petrenko
PDPTool Software:
The PDPTool Software, developed in the MATLAB computing environment in
2006-2009, is available from the Stanford PDP lab
resources page. This software re-implements the programs and
exercises from the Original PDP Software and Handbook, with updates,
including simple recurrent newtworks and an implementation of
recurrent networks. The inner loops of several programs have been
optimized and compare favorably with Lens for speed, while also
allowing fully integrated access to tools the MATLAB environment.
For full online documentation on the use of this software, please see
the
Second Edition of the Parallel Distributed Processing Handbook.
Original PDP Software:
The Original PDP software, (as described in McClelland, J. L. and
Rumelhart, D. E. Explorations in Parallel Distributed Processing:
A handbook of models, programs, and exercises, Cambridge, MA: MIT
Press) and the text and appendices of the original edition of the
Handbook is also available from the PDP lab
resources
page.
Lens:
Lens is an efficient, yet flexible, neural network simulator that runs
on a variety of platforms. It can handle large, complex simulations,
but is also reasonably easy for novices to operate. The current
version was maintained for several years at Carnegie
Mellon's Center for the Neural Basis
of Cognition, and is now maintained by
the Stanford Center for Mind,
Brain and Computation. Access the Lens Manual and links to the software
here.
TRACE:
The TRACE model of speech perception has been re-implemented in java
by James Magnuson's laboratory, and is available at
the jTRACE
webpage. The original c code used for the simulations reported in
McClelland & Elman (1986) is available in a gzipped tar
file here.
Further Information:
The author of Lens is no longer maintaining it, and the Center for
Mind, Brain, and Computation does not have resources for Lens' further
development. While Lens does offer more user-specifiable options and
configurability than the PDPTool software, the latter will be maintained and
extended, and users familiar with MATLAB programming can extend it
directly by modifying the source code. Since this software is fully
integrated with MATLAB and the innner loops of several progams have
been optimized to run as fast as Lens, I now encourage users to
consider working in this envirionment. Comments and questions should
be addressed to me at
mcclelland@stanford.edu