Package projection

source code

Projection classes.

A Projection is a connection between two Sheets, generally implemented as a large set of ConnectionFields.

Any new Projection classes added to this directory will automatically become available for any model.

$Id: __init__.py 8941 2008-08-21 13:40:59Z ceball $

Version: $Revision: 8941 $

Submodules

[hide private]

topo.projection.basic: Repository for the basic Projection types, without any special dependencies or requirements.
topo.projection.optimized: Optimized versions of Projection classes.

Classes

[hide private]

CFProjection
A projection composed of ConnectionFields from a Sheet into a ProjectionSheet.

LeakyCFProjection
A projection that has a decay_rate parameter so that incoming input is decayed over time as x(t) = input + x(t-1)*exp(-decay_rate), and then the weighted sum of x(t) is calculated.

OneToOneProjection
A projection that has at most one input connection for each unit.

Projection
A projection from a Sheet into a ProjectionSheet.

ScaledCFProjection
Allows scaling of activity based on a specified target average activity.

SharedWeightCFProjection
A Projection with a single set of weights, shared by all units.