39 lines
1.1 KiB
PHP
39 lines
1.1 KiB
PHP
<?php
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namespace App\Models;
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use Illuminate\Database\Eloquent\Model;
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abstract class Perceptron extends Model
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{
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public function __construct(
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private array $synaptic_weights,
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) {
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$this->synaptic_weights = $synaptic_weights; // Add bias weight
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}
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public function test(array $inputs): int
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{
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$inputs = array_merge([1], $inputs); // Add bias input
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if (count($inputs) !== count($this->synaptic_weights)) { // Check
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throw new \InvalidArgumentException("Number of inputs must match number of synaptic weights.");
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}
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$weighted_sum = array_sum(array_map(fn($input, $weight) => $input * $weight, $inputs, $this->synaptic_weights));
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return $this->activationFunction($weighted_sum);
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}
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abstract protected function activationFunction(float $weighted_sum): int;
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public function getSynapticWeights(): array
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{
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return $this->synaptic_weights;
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}
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public function setSynapticWeights(array $synaptic_weights): void
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{
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$this->synaptic_weights = $synaptic_weights;
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}
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}
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