Fann Функции
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fann_get_activation_steepness

(PECL fann >= 1.0.0)

fann_get_activation_steepness — Returns the activation steepness for supplied neuron and layer number

Описание

float fann_get_activation_steepness ( resource $ann , int $layer , int $neuron )

Get the activation steepness for neuron number neuron in layer number layer, counting the input layer as layer 0.

It is not possible to get activation steepness for the neurons in the input layer.

The steepness of an activation function says something about how fast the activation function goes from the minimum to the maximum. A high value for the activation function will also give a more agressive training.

When training neural networks where the output values should be at the extremes (usually 0 and 1, depending on the activation function), a steep activation function can be used (e.g. 1.0).

The default activation steepness is 0.5.

Список параметров

ann

Ресурс (resource) нейронной сети.

layer

Layer number

neuron

Neuron number

Возвращаемые значения

The activation steepness for the neuron or -1 if the neuron is not defined in the neural network, or FALSE on error.

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Fann Функции
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