C# Class Encog.MathUtil.Randomize.NguyenWidrowRandomizer

Implementation of Nguyen-Widrow weight initialization. This is the default weight initialization used by Encog, as it generally provides the most trainable neural network.

Inheritance: IRandomizer

显示文件 Open project: encog/encog-silverlight-core Class Usage Examples

Public Methods

Method	Description
NguyenWidrowRandomizer ( double min, double max ) : System	Construct a Nguyen-Widrow randomizer.
Randomize ( BasicNetwork network, int fromLayer ) : void	Randomize one level of a neural network.
Randomize ( IMLMethod method ) : void	The Nguyen-Widrow initialization algorithm is the following : 1. Initialize all weight of hidden layers with (ranged) random values 2. For each hidden layer 2.1 calculate beta value, 0.7/// Nth(#neurons of input layer) root of #neurons of current layer 2.2 for each synapse 2.1.1 for each weight 2.1.2 Adjust weight by dividing by norm of weight for neuron and multiplying by beta value

Method Details

NguyenWidrowRandomizer() public method

Construct a Nguyen-Widrow randomizer.

public NguyenWidrowRandomizer ( double min, double max ) : System
min	double	The min of the range.
max	double	The max of the range.
return	System

Randomize() public method

Randomize one level of a neural network.

public Randomize ( BasicNetwork network, int fromLayer ) : void
network	Encog.Neural.Networks.BasicNetwork	The network to randomize
fromLayer	int	The from level to randomize.
return	void

Randomize() public final method

The Nguyen-Widrow initialization algorithm is the following : 1. Initialize all weight of hidden layers with (ranged) random values 2. For each hidden layer 2.1 calculate beta value, 0.7/// Nth(#neurons of input layer) root of #neurons of current layer 2.2 for each synapse 2.1.1 for each weight 2.1.2 Adjust weight by dividing by norm of weight for neuron and multiplying by beta value

public final Randomize ( IMLMethod method ) : void
method	IMLMethod	The network to randomize.
return	void