// echo count($bing_agg);
// echo "<br>";
/* Associative Array $blekko contains Url and Score as key => value */
while ($row3 = mysql_fetch_assoc($result_blekko)) {
$url3 = $row3['Url'];
$score3 = $row3['Score'];
$blekko_agg[$url3] = $score3;
}
// echo "number in Blekko agg: ";
// // echo count($blekko_agg);
// echo "<br>";
/* aggregate bing and yahoo into a new array called $temp */
$temp_agg = Borda($blekko_agg, $yahoo_agg);
/* aggregate $temp and blekko into a new array called $temp2 to give
* an aggregates array for all 3 search engines */
$temp2_agg = Borda($bing_agg, $temp_agg);
/* Sort new array by descending values */
arsort($temp2_agg);
/* "pop" last element from array $temp2 as last element is always " " => NULL
* due to final iteration stopping at end */
$end_element = array_pop($temp2_agg);
// var_dump($temp2); // used for testing
// echo "temp2_agg: ";
// echo count($temp2_agg);
// echo "<br>";
$aggregated = array();
foreach ($temp2_agg as $url4 => $score3) {
$aggregated[] = $url4;
}
// print_r($aggregated);
// echo "<br>";
while ($row2 = mysql_fetch_assoc($result_bing)) {
$url2 = $row2['Url'];
$score2 = $row2['Score'];
$bing[$url2] = $score2;
}
/* Associative Array $blekko contains Url and Score as key => value */
while ($row3 = mysql_fetch_assoc($result_blekko)) {
$url3 = $row3['Url'];
$score3 = $row3['Score'];
$blekko[$url3] = $score3;
}
/* aggregate bing and yahoo into a new array called $temp */
$temp = Borda($bing, $yahoo);
/* aggregate $temp and blekko into a new array called $temp2 to give
* an aggregates array for all 3 search engines */
$temp2 = Borda($blekko, $temp);
/* Sort new array by descending values */
arsort($temp2);
/* "pop" last element from array $temp2 as last element is always " " => NULL
* due to final iteration stopping at end */
$end_element = array_pop($temp2);
// var_dump($temp2); // used for testing
/* Select all tables from database by the key $url4 and assign it to variable
* $test, then echo out results in format below in loop until end of array $temp2 is
* reached. A 'union' of all tables must be choosen as union joins all tables into
* one but removes any duplicates otherwise if a url in the array $temp2 is in all tables it
* will print it to screen 3 times and mess up the ranks as given by iterator $t */
$t = 0;
foreach ($temp2 as $url4 => $score3) {
$t++;
$test = "{$url4}";
function RecalcCentroid($clust)
{
$num_members = count($clust['members']);
$buffer_arr = $clust['members'];
$m = 0;
$temp = array();
/******** each $buffer_arr only has one element => url => values ********/
for ($m = 0; $m < $num_members; $m++) {
foreach ($buffer_arr[$m] as $url) {
$temp[$m] = $url;
}
}
$t = 0;
$temp2 = array();
$temp2[0] = $temp[0];
// need to call Borda to add values when words match.
for ($t = 0; $t < $num_members - 1; $t++) {
$temp2[$t + 1] = Borda($temp2[$t], $temp[$t + 1]);
// add values together
}
arsort($temp2[$num_members - 1]);
// sort array
array_pop($temp2[$num_members - 1]);
// 'pop' last NULL element
$tempor = array();
// new array to be returned
foreach ($temp2[$num_members - 1] as $key => $value) {
$tempor[$key] = $value / $num_members;
// mean values
}
/* returns an array with string => value, representing new centroid(a feature vector) */
return $tempor;
}
