echo "Number of words in set 1: " . count($set1) . "\n";
echo "Number of words in set 2: " . count($set2) . "\n";
echo "Number of words in set 3: " . count($set3) . "\n";
$intersection = array_intersect($set1, $set2, $set3);
$union = array_merge($set1, $set2, $set3);
$intersectionCount = cardinality($intersection);
echo "Cardinailiy of union: " . cardinality($union) . "\n";
echo "Number of words in intersection: " . $intersectionCount . "\n";
echo "------\nLogLog\n";
$log_logs = array();
foreach (array($set1, $set2, $set3) as $i => $set) {
$log_log = new HyperLogLog\MinHash();
foreach ($set as $word) {
$log_log->add($word);
}
$log_logs[] = $log_log;
echo "Added set " . ($i + 1) . "\n";
}
$merge_log = array_pop($log_logs);
$new_log_log = new HyperLogLog\MinHash();
$new_log_log->import($merge_log->export());
echo $merge_log->count() . "\n";
echo $new_log_log->count() . "\n";
$log_logs[] = $new_log_log;
$count = \HyperLogLog\Utils\MinHashIntersector::count($log_logs);
echo "Intersection complete\n";
echo $count . "\n" . 'error: ' . number_format(($count - $intersectionCount) / ($intersectionCount / 100.0), 3) . '%' . PHP_EOL;
foreach ($log_logs as $log) {
$export = $log->export();
echo "Size of export: " . strlen($export[0]) . ', ' . strlen($export[1]) . "\n";
}