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<?php
declare (strict_types = 1);
namespace Phpml\NeuralNetwork\ActivationFunction;
use Phpml\NeuralNetwork\ActivationFunction;
class HyperbolicTangent implements ActivationFunction
{
/**
* @var float
*/
private $beta;
* @param float $beta
public function __construct($beta = 1.0)
$this->beta = $beta;
}
* @param float|int $value
*
* @return float
public function compute($value): float
return tanh($this->beta * $value);
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php-ml
