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admin rating user improvements

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- add last rate date for user
- add consensus deviation but only based on the best rated photos (e.g. how much this user tries to change the best rated photos)


git-svn-id: http://piwigo.org/svn/trunk@26900 68402e56-0260-453c-a942-63ccdbb3a9ee
This commit is contained in:
rvelices 2014-01-21 22:50:06 +00:00
commit eecb7cf42c
3 changed files with 43 additions and 24 deletions
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33
admin/rating_user.php
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@ -35,6 +35,12 @@ if (isset($_GET['f_min_rates']))
$filter_min_rates = (int)$_GET['f_min_rates'];
}
$consensus_top_number = $conf['top_number'];
if (isset($_GET['consensus_top_number']))
{
$consensus_top_number = (int)$_GET['consensus_top_number'];
}
// build users
global $conf;
$query = 'SELECT DISTINCT
@ -60,7 +66,7 @@ foreach($conf['rate_items'] as $rate)
$by_user_rating_model['rates'][$rate] = array();
}
// by user aggregation
$image_ids = array();
$by_user_ratings = array();
$query = '
@ -87,6 +93,7 @@ while ($row = pwg_db_fetch_assoc($result))
$rating = $by_user_rating_model;
$rating['uid'] = (int)$row['user_id'];
$rating['aid'] = $usr['anon'] ? $row['anonymous_id'] : '';
$rating['last_date'] = $row['date'];
}
$rating['rates'][$row['rate']][] = array(
'id' => $row['element_id'],
@ -113,6 +120,7 @@ if (count($image_ids) > 0 )
}
}
//all image averages
$query='SELECT element_id,
AVG(rate) AS avg
FROM '.RATE_TABLE.'
@ -124,9 +132,16 @@ while ($row = pwg_db_fetch_assoc($result))
$all_img_sum[(int)$row['element_id']] = array( 'avg'=>(float)$row['avg'] );
}
$query='SELECT id
FROM '.IMAGES_TABLE.'
ORDER by rating_score DESC
LIMIT '.$consensus_top_number;
$best_rated = array_flip( array_from_query($query, 'id'));
// by user stats
foreach($by_user_ratings as $id => &$rating)
{
$c=0; $s=0; $ss=0; $consensus_dev=0;
$c=0; $s=0; $ss=0; $consensus_dev=0; $consensus_dev_top=0; $consensus_dev_top_count=0;
foreach($rating['rates'] as $rate => $rates)
{
$ct = count($rates);
@ -135,11 +150,19 @@ foreach($by_user_ratings as $id => &$rating)
$ss += $ct * $rate * $rate;
foreach($rates as $id_date)
{
$consensus_dev += abs($rate - $all_img_sum[$id_date['id']]['avg']);
$dev = abs($rate - $all_img_sum[$id_date['id']]['avg']);
$consensus_dev += $dev;
if (isset($best_rated[$id_date['id']]))
{
$consensus_dev_top += $dev;
$consensus_dev_top_count++;
}
}
}
$consensus_dev /= $c;
if ($consensus_dev_top_count)
$consensus_dev_top /= $consensus_dev_top_count;
$var = ($ss - $s*$s/$c)/$c;
$rating += array(
@ -147,7 +170,8 @@ foreach($by_user_ratings as $id => &$rating)
'count' => $c,
'avg' => $s/$c,
'cv' => $s==0 ? -1 : sqrt($var)/($s/$c), // http://en.wikipedia.org/wiki/Coefficient_of_variation
'cd' => $consensus_dev
'cd' => $consensus_dev,
'cdtop' => $consensus_dev_top_count ? $consensus_dev_top : ''
);
}
unset($rating);
@ -213,6 +237,7 @@ $x = uasort($by_user_ratings, $available_order_by[$order_by_index][1] );
$template->assign( array(
'F_ACTION' => get_root_url().'admin.php',
'F_MIN_RATES' => $filter_min_rates,
'CONSENSUS_TOP_NUMBER' => $consensus_top_number,
'available_rates' => $conf['rate_items'],
'ratings' => $by_user_ratings,
'image_urls' => $image_urls,