Package topo :: Package learningfn :: Module projfn :: Class CFPLF_EuclideanHebbian
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Class CFPLF_EuclideanHebbian

source code


Hebbian CFProjection learning rule based on Euclidean distance.

Learning is driven by the distance from the input pattern to the weights, scaled by the current activity. To implement a Kohonen SOM algorithm, the activity should be the neighborhood kernel centered around the winning unit, as implemented by KernelMax.

Nested Classes [hide private]

Inherited from param.parameterized.Parameterized: __metaclass__

Instance Methods [hide private]
 
__call__(self, iterator, input_activity, output_activity, learning_rate, **params)
Apply this learning function to the given set of ConnectionFields, and input and output activities, using the given learning_rate.
source code

Inherited from base.cf.CFPLearningFn: constant_sum_connection_rate

Inherited from param.parameterized.Parameterized: __getstate__, __init__, __repr__, __setstate__, __str__, debug, defaults, force_new_dynamic_value, get_param_values, get_value_generator, inspect_value, message, print_param_values, script_repr, set_default, set_dynamic_time_fn, set_param, state_pop, state_push, verbose, warning

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __sizeof__, __subclasshook__

Class Methods [hide private]

Inherited from param.parameterized.Parameterized: params, print_param_defaults

Class Variables [hide private]
  name = <param.parameterized.String object at 0xb28796c>
String identifier for this object.

Inherited from param.parameterized.Parameterized: print_level

Properties [hide private]

Inherited from object: __class__

Method Details [hide private]

__call__(self, iterator, input_activity, output_activity, learning_rate, **params)
(Call operator)

source code 
Apply this learning function to the given set of ConnectionFields, and input and output activities, using the given learning_rate.
Overrides: base.cf.CFPLearningFn.__call__
(inherited documentation)