PHP Camspiers\StatisticalClassifier\Classifier SVM::is Examples

Example #1

File: svm.php Project: camspiers/statistical-classifier

<?php

ini_set('memory_limit', '512M');
require_once __DIR__ . '/../vendor/autoload.php';
use Camspiers\StatisticalClassifier\DataSource\Directory;
use Camspiers\StatisticalClassifier\Classifier\SVM;
$cats = array('alt.atheism', 'comp.graphics', 'rec.motorcycles', 'sci.crypt', 'soc.religion.christian', 'talk.religion.misc');
$source = new Directory(array('directory' => __DIR__ . '/../resources/20news-bydate/20news-bydate-train', 'include' => $cats));
$classifier = new SVM($source);
$testSource = new Directory(array('directory' => __DIR__ . '/../resources/20news-bydate/20news-bydate-test', 'include' => $cats));
$data = $testSource->getData();
$stats = array();
foreach ($data as $category => $documents) {
    $stats[$category] = array(0, count($documents));
    foreach ($documents as $document) {
        if ($classifier->is($category, $document)) {
            $stats[$category][0]++;
        }
    }
}
foreach ($stats as $category => $data) {
    echo $category, ': ', $data[0] / $data[1], PHP_EOL;
}