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| 28 January 2008: Updates since version 0.9.4 (currently available only via SVN, but to be included in the next release):
26 October 07: Version 0.9.4 released, including:
23 April 07: Version 0.9.3 released, including:
29 November 06: There will be a short talk on Topographica
at the PyCon 2007
convention, February 23-25, 2007.
22 November 06: Version 0.9.2
released, including
numerous bugfixes (e.g. to support GCC 4.1.x compilers),
much more complete user manual,
more useful reference manual,
more sample models,
flexible joint normalization across Projections,
arbitrary control of mapping CF centers (see CoordinateMapperFn),
Composite and Selector patterns to allow flexible combinations of input patterns,
homeostatic learning and output functions,
sigmoid and generalized logistic output functions,
and a new disparity map example (including a
random dot stereogram input pattern).
02 November 06: Some users have reported problems when using
optimized code on systems with the most recent GCC 4.1.x C/C++
compilers. We have added a patch to the included weave
inline-compilation package that should fix the problem, currently
available only on the most recent CVS version of Topographica.
Affected users may need to do a CVS update, then "make -C external
weave-uninstall ; make". These changes will be included in the next
official release.
23 July 06: Version 0.9.1
released.
This is a bugfix release only, upgrading the included Tcl/Tk package
to correct a syntax error in its configure script, which had
been preventing compilation on platforms using bash 3.1 (such as
Ubuntu 6.06). There is no benefit to updating if 0.9.0 already runs
on your platform.
07 June 06: Version 0.9.0 released, including numerous bugfixes, context-sensitive (balloon) help for nearly every parameter and control, full Windows support (screenshot), full Mac OS X support, downloadable installation files, significant performance increases (7X faster on the main example scripts, with more speedups to come), faster startup, better memory management, simpler programming interface, improved state saving (e.g. no longer requiring the original script), independently controllable random number streams, plot window histories, more library components (e.g. Oja rule, CPCA, covariance), prototype spiking neuron support, and much-improved model editor. 15 May 06: New book Computational Maps in the
Visual Cortex available, including background on modeling
computational maps, a review of visual cortex models, and an
extended set of examples of the types of models supported by
Topographica.
20 February 06: Version 0.8.2 released, including numerous
bugfixes,
circular receptive fields,
shared-weight projections,
tutorial with ON/OFF LGN model,
SOM retinotopy tutorial,
Euclidean-distance-based response and learning functions,
density-independent SOM parameters,
Mac OS X instructions,
developer manual,
partial user manual,
much-improved
model editor,
generic Matlab-style plotting,
topographic grid plotting,
RGB plots,
user-controllable plot sorting,
plot color keys,
and progress reports during learning. See the
Linux screenshot.
22 December 05: Version 0.8.1 released, including numerous
bugfixes, more flexible plotting (including weight colorization),
user-controllable optimization, properties panels, more-useful
reference manual,
image input patterns, and a prototype graphical
model editor.
8 November 05: New site launched with Topographica version 0.8.0, including a new LISSOM tutorial. (Linux screenshot). |
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