| Current Path : /var/www/ljmtc/cbt/lib/mlbackend/php/phpml/src/Phpml/NeuralNetwork/ActivationFunction/ |
| Current File : /var/www/ljmtc/cbt/lib/mlbackend/php/phpml/src/Phpml/NeuralNetwork/ActivationFunction/Gaussian.php |
<?php
declare(strict_types=1);
namespace Phpml\NeuralNetwork\ActivationFunction;
use Phpml\NeuralNetwork\ActivationFunction;
class Gaussian implements ActivationFunction
{
/**
* @param float|int $value
*/
public function compute($value): float
{
return exp(- $value ** 2);
}
/**
* @param float|int $value
* @param float|int $calculatedvalue
*/
public function differentiate($value, $calculatedvalue): float
{
return -2 * $value * $calculatedvalue;
}
}