24hoursmedia/php-fann-topology-core

This package is abandoned and no longer maintained. No replacement package was suggested.

There is no license information available for the latest version (v1.0.0) of this package.

topology library for php fann

v1.0.0 2016-12-17 08:18 UTC

Requires

• php: >=5.6

Unknown License

README

create a topological representation of the neurons and connections in a FANN network

Installation

using composer:

composer require 24hoursmedia/php-fann-topology-core

Example

require('vendor/autoload.php');
use T4\Fann\Topology\Core\Topology;
$ann = fann_create_standard(4, 2, 2, 5, 1);
fann_set_activation_function_hidden($ann, FANN_SIGMOID_SYMMETRIC);
fann_set_activation_function_output($ann, FANN_SIGMOID_SYMMETRIC);
$filename = dirname(__FILE__) . "/xor.data";
fann_train_on_file($ann, $filename, 100000, 0, 0.0001);

$topology = Topology::createFromFann($ann);
$inputLayer = $topology->getLayers()[0];
$firstInputNeuron = $inputLayer->getNeurons()[0];
$connections = $firstInputNeuron->getConnections();
foreach ($connections as $conn) {
    echo 'neuron ' . $conn->getFromNeuron()->getIndex() . ' is connected to neuron ' .
        $conn->getToNeuron()->getIndex() . ' with weight ' . $conn->getWeight() .
        PHP_EOL;
}

Output:

neuron 0 is connected to 3 with weight -0.77117919921875
neuron 0 is connected to 4 with weight -3.1356239318848