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PHP Manual :: fann_init_weights



fann_get_training_algorithm || fann_length_train_data || Fann Functions || PHP Manual

(PECL fann >= 1.0.0)

fann_init_weightsInitialize the weights using Widrow + Nguyen’s algorithm

Description

bool fann_init_weights ( resource $ann , resource $train_data )

Initialize the weights using Widrow + Nguyen’s algorithm.

This function behaves similarly to fann_randomize_weights(). It will use the algorithm developed by Derrick Nguyen and Bernard Widrow to set the weights in such a way as to speed up training. This technique is not always successful, and in some cases can be less efficient than a purely random initialization.

The algorithm requires access to the range of the input data (for example largest and smallest input), and therefore accepts a second argument, data, which is the training data that will be used to train the network.

Parameters

ann

Neural network resource.

train_data

Neural network training data resource.

Return Values

Returns TRUE on success, or FALSE otherwise.

See Also



fann_get_training_algorithm || fann_length_train_data || Fann Functions || PHP Manual
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