, (*1)
Legendary Mind
Legendary Mind is an easy to use Neural Network written in PHP
- Wrapper Class For Handling The Network
- Archive And Restore Neural Networks Serialized In Text-Files, (*2)
Installation
composer require devtronic/legendary-mind
Usage
Standalone Network
<?php
use Devtronic\Layerless\Activator\TanHActivator;
use Devtronic\LegendaryMind\Mind;
require_once 'vendor/autoload.php';
// Create the topology for the net
$topology = [2, 3, 1];
// Set the activator
$activator = new TanHActivator();
// Instantiate the Mind
$mind = new Mind($topology, $activator);
// Setup XOR Lessons
$lessons = [
[
[0, 0], # Inputs
[0] # Outputs
],
[
[0, 1], # Inputs
[1] # Outputs
],
[
[1, 0], # Inputs
[1] # Outputs
],
[
[1, 1], # Inputs
[0] # Outputs
],
];
// Train the lessons
$mind->train($lessons);
// Setup the check lesson
$test = [1, 0];
$expected = [1];
// Propagate the check lesson
$mind->predict($test);
// Print the Output
print_r($mind->getOutput());
// Backpropagate
$mind->backPropagate($expected);
With Wrapper (recommended)
<?php
use Devtronic\Layerless\Activator\TanHActivator;
use Devtronic\LegendaryMind\Wrapper;
require_once 'vendor/autoload.php';
// Set the activator function
$activator = new TanHActivator();
$wrapper = new Wrapper($hiddenNeurons = 3, $hiddenLayers = 1);
// Possible input values
$properties = [
'color' => ['red', 'pink', 'blue', 'green'],
'hair_length' => ['short', 'long']
];
$outputs = [
'gender' => ['male', 'female']
];
// Setup the wrapper
$wrapper->initialize($properties, $outputs, $activator);
// Setup the lessons
$lessons = [
[
'input' => [
'color' => 'red',
'hair_length' => 'long',
],
'output' => [
'gender' => 'female'
],
],
[
'input' => [
'color' => 'blue',
'hair_length' => 'short',
],
'output' => [
'gender' => 'male'
],
],
[
'input' => [
'color' => 'red',
'hair_length' => 'short',
],
'output' => [
'gender' => 'male'
],
],
];
// Train the lessons
$wrapper->train($lessons);
// Setup the check lesson
$test_lesson = [
'input' => [
'color' => ['pink', 'green'],
'hair_length' => 'long',
],
'output' => [
'gender' => 'female'
]
];
// Propagate the check lesson
$wrapper->predict($test_lesson);
// Print the Output
print_r($wrapper->getResult());
// Backpropagate
$wrapper->backPropagate($test_lesson);
Archive and restore the network (only with wrapper, Line 16 and Line 67)
<?php
use Devtronic\Layerless\Activator\TanHActivator;
use Devtronic\LegendaryMind\Wrapper;
require_once 'vendor/autoload.php';
// Set the activation function
$activator = new TanHActivator();
$wrapper = new Wrapper($hiddenNeurons = 3, $hiddenLayers = 1);
$network_file = 'network.txt';
if (is_file($network_file)) {
// Restore the Network
$wrapper->restore($network_file);
} else {
// Possible input values
$properties = [
'color' => ['red', 'pink', 'blue', 'green'],
'hair_length' => ['short', 'long']
];
$outputs = [
'gender' => ['male', 'female']
];
// Setup the wrapper
$wrapper->initialize($properties, $outputs, $activator);
// Setup the lessons
$lessons = [
[
'input' => [
'color' => 'red',
'hair_length' => 'long',
],
'output' => [
'gender' => 'female'
],
],
[
'input' => [
'color' => 'blue',
'hair_length' => 'short',
],
'output' => [
'gender' => 'male'
],
],
[
'input' => [
'color' => 'red',
'hair_length' => 'short',
],
'output' => [
'gender' => 'male'
],
],
];
// Train the lessons
$wrapper->train($lessons);
// Archive the Network
$wrapper->archive($network_file);
}
// Setup the check lesson
$test_lesson = [
'input' => [
'color' => ['pink', 'green'],
'hair_length' => 'long',
],
'output' => [
'gender' => 'female'
]
];
// Propagate the check lesson
$wrapper->predict($test_lesson);
// Print the Output
print_r($wrapper->getResult());
// Backpropagate
$wrapper->backPropagate($test_lesson);
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