public function get_inference_result(Language_variable_collection $langvar_coll)
{
$output_coll = new Output_language_variable_collection();
$weight_array = $langvar_coll->get_weight_array();
$membership_matrix = $langvar_coll->get_membership_matrix();
for ($x = 0; $x < $output_coll->get_number(); $x++) {
$min_array = array();
for ($y = 0; $y < count($weight_array); $y++) {
$min_array[] = min(array($weight_array[$y], $membership_matrix[$y][$x]));
}
$max = max($min_array);
$output_coll->set_membership($x, $max);
}
return $output_coll;
}
public function get_inference_result(Language_variable_collection $langvar_coll)
{
$output_coll = new Output_language_variable_collection();
$weight_array = $langvar_coll->get_weight_array();
$membership_matrix = $langvar_coll->get_membership_matrix();
for ($x = 0; $x < $output_coll->get_number(); $x++) {
$multiplication_array = array();
for ($y = 0; $y < count($weight_array); $y++) {
$r = $weight_array[$y] * $membership_matrix[$y][$x];
$multiplication_array[] = $r;
}
$result = 0;
for ($z = 0; $z < count($multiplication_array); $z++) {
$result = $result + $multiplication_array[$z];
}
if ($result > 1) {
$result = 1;
}
$output_coll->set_membership($x, $result);
}
return $output_coll;
}
/**
* 改良過後計算關係度的方法
* @param Annotation $annotation
* @return Output_language_variable_collection
*/
protected function _get_membership_renew(Annotation $annotation, $parameters)
{
//請由子類別來覆寫此方法
$variables = explode(',', $parameters);
$feature = $this->get_feature($annotation);
$this->_CI_load('library', 'fuzzy/Output_language_variable_collection', 'output_language_variable_collection');
$membership = new Output_language_variable_collection();
$membership->set_zero();
if (count($variables) > 1) {
if ($feature <= $variables[0]) {
$membership->set_membership(0, 1);
} else {
if ($feature >= $variables[count($variables) - 1]) {
$membership->set_membership(count($variables) - 1, 1);
} else {
for ($i = 0; $i < count($variables) - 1; $i++) {
$now = $variables[$i];
$next = $variables[$i + 1];
if ($feature > $now && $feature <= $next) {
$len = $next - $now;
$m1 = 1 - ($feature - $now) / $len;
$m2 = 1 - ($next - $feature) / $len;
$membership->set_membership($i, $m1);
$membership->set_membership($i + 1, $m2);
break;
}
}
}
}
}
return $membership;
}
