function extract_matrix($text, $stop_words)
{
global $CONFIG;
set_time_limit(0);
//this avoids timeouts
include $CONFIG->path . "mod/profile_manager/views/default/profile_manager/members/config.php";
//given the text of the document (with this configuration it is only 1), for each word (excluding stop words) calculates statistics (position in the text) and saves them in the D object
$text_info = create_index($text, $stop_words);
$keywords = extract_keywords($text_info["positions"]);
//most present keywords are extracted from the text, till the limit established by the variable keywords_limit
$response = array();
if ($context_limit == 0) {
foreach ($keywords as $keyword => $recurrence) {
$response[$keyword][$keyword] = $recurrence;
}
} else {
$response = sliding_window_ri($keywords, $width_sliding_window, $text_info["text"]);
}
//it applies the sliding window algorithm to each keyword to extract the contexts
return $response;
}
function extract_matrix($text, $stop_words)
{
global $width_sliding_window, $IndexingClassificationPath, $context_limit, $IOdir;
//given the text of the document (with this configuration it is only 1), for each word (excluding stop words) calculates statistics (position in the text) and saves them in the D object
$text_info = create_index($text, $stop_words);
$keywords = extract_keywords($text_info["positions"]);
//most present keywords are extracted from the text, till the limit established by the variable keywords_limit
$response = array();
if ($context_limit == 0) {
foreach ($keywords as $keyword => $recurrence) {
$response[$keyword][$keyword] = $recurrence;
}
} else {
$response = sliding_window_ri($keywords, $width_sliding_window, $text_info["text"]);
}
//it applies the sliding window algorithm to each keyword to extract the contexts
return $response;
}
