public function recommend($keywords)
{
return KeywordRecommender::makeCombineRecList($keywords);
}
private function __recommend($mode, $keywords, $queryId)
{
$weightArray = array();
if ($mode == KEY_NO_EXPANSION) {
if (!get_magic_quotes_gpc()) {
$keywords = addslashes($keywords);
$keywords = array_unique(explode(' ', $keywords));
foreach ($keywords as $key) {
$product_temp = KeywordRecommender::fetch_product_weight($key);
foreach ($product_temp as $p_name => $p_weight) {
if (isset($weightArray[$p_name])) {
$weightArray[$p_name] += $p_weight;
} else {
$weightArray[$p_name] = $p_weight;
}
}
}
return $weightArray;
}
} else {
if ($mode == KEY_LINK_JACCARD) {
$expand_keywords = KeywordRecommender::fetch_expand_key($keywords);
foreach ($expand_keywords as $expand_key) {
$expand_weight = KeywordRecommender::fetch_product_weight($expand_key);
foreach ($expand_weight as $p_name => $p_weight) {
if (isset($weightArray[$p_name])) {
$weightArray[$p_name] += $p_weight;
} else {
$weightArray[$p_name] = $p_weight;
}
}
}
return $weightArray;
} else {
if ($mode == KEY_LINK_COSINE) {
$keywords = array_unique(explode(' ', $keywords));
$expand_keywords = array();
foreach ($keywords as $key) {
$expand_results = $this->dm->query("select keyword_expand from keyword_cosine_link where keyword = '{$key}'");
while ($expand_row = mysql_fetch_array($expand_results)) {
if (!in_array($expand_row[0], $keywords)) {
$expand_keywords[] = $expand_row[0];
}
}
}
$expand_keywords = array_unique($expand_keywords);
foreach ($expand_keywords as $expand_key) {
$expand_weight = $this->fetch_product_weight($expand_key);
foreach ($expand_weight as $p_name => $p_weight) {
if (isset($weightArray[$p_name])) {
$weightArray[$p_name] += $p_weight;
} else {
$weightArray[$p_name] = $p_weight;
}
}
}
return $weightArray;
} else {
if ($mode == KEY_COL_SLOPEONE) {
if ($this->lock == false) {
$this->loadUserItem();
}
$this->lock = true;
$keywords = array_unique(explode(' ', $keywords));
$openslopeone = new OpenSlopeOne();
foreach ($keywords as $key) {
if (key_exists($key, $this->user)) {
$weightArrayTemp = $openslopeone->getRecommendedItemsByUser($this->user[$key]);
if ($weightArrayTemp != NULL) {
foreach ($weightArrayTemp as $p_name => $p_weight) {
if (isset($weightArray[$this->item[$p_name]])) {
$weightArray[$this->item[$p_name]] += $p_weight;
} else {
$weightArray[$this->item[$p_name]] = $p_weight;
}
}
}
}
}
return $weightArray;
}
}
}
}
}
