fann_init_weights

(PECL fann >= 1.0.0)
Initialize the weights using Widrow + Nguyen’s algorithm
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.

Returns:

Returns TRUE on success, or FALSE otherwise.

See also:

fann_randomize_weights() -

fann_read_train_from_file() -

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2016-02-24 16:05:52
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