Viewing file:  lib-priority.inc.php (26.64 KB) -rwxr-xr-x
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
<?php // $Revision: 1.23 $
/************************************************************************/
/* phpAdsNew 2 */
/* =========== */
/* */
/* Copyright (c) 2001 by the phpAdsNew developers */
/* http://sourceforge.net/projects/phpadsnew */
/* */
/* This program is free software. You can redistribute it and/or modify */
/* it under the terms of the GNU General Public License as published by */
/* the Free Software Foundation; either version 2 of the License. */
/************************************************************************/
// Set define to prevent duplicate include
define ('LIBPRIORITY_INCLUDED', true);
// Defaults
define('phpAds_CurrentHour', date('H'));
$debuglog = '';
function phpAds_PriorityGetImpressions($days, $offset)
{
global $phpAds_config;
$offset = $offset * (60 * 60 * 24);
if ($phpAds_config['compact_stats'])
{
$begin = date('Ymd', mktime (0, 0, 0, date('m'), date('d'), date('Y')) - 1 - $offset);
$end = date('Ymd', mktime (0, 0, 0, date('m'), date('d'), date('Y')) - (60 * 60 * 24 * $days) - $offset);
$query = "
SELECT SUM(views) as sum_views
FROM ".$phpAds_config['tbl_adstats']."
WHERE day >= ".$begin."
AND day <= ".$end."
";
}
else
{
$begin = date('YmdHis', mktime (0, 0, 0, date('m'), date('d'), date('Y')) - 1 - $offset);
$end = date('YmdHis', mktime (0, 0, 0, date('m'), date('d'), date('Y')) - (60 * 60 * 24 * $days) - $offset);
$query = "
SELECT COUNT(*) as sum_views
FROM ".$phpAds_config['tbl_adviews']."
WHERE t_stamp >= ".$begin."
AND t_stamp <= ".$end."
";
}
$res = phpAds_dbQuery($query);
return (phpAds_dbResult($res, 0, 'sum_views'));
}
function phpAds_PriorityGetHourlyProfile($days, $offset)
{
global $phpAds_config;
$profile = array (0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0);
// Determine days
$offset = $offset * (60 * 60 * 24);
if ($phpAds_config['compact_stats'])
{
$begin = date('Ymd', mktime (0, 0, 0, date('m'), date('d'), date('Y')) - 1 - $offset);
$end = date('Ymd', mktime (0, 0, 0, date('m'), date('d'), date('Y')) - (60 * 60 * 24 * $days) - $offset);
$query = "
SELECT hour, SUM(views) AS sum_views
FROM ".$phpAds_config['tbl_adstats']."
WHERE day <= ".$begin."
AND day >= ".$end."
GROUP BY hour
";
}
else
{
$begin = date('YmdHis', mktime (0, 0, 0, date('m'), date('d'), date('Y')) - 1 - $offset);
$end = date('YmdHis', mktime (0, 0, 0, date('m'), date('d'), date('Y')) - (60 * 60 * 24 * $days) - $offset);
$query = "
SELECT HOUR(t_stamp) AS hour, COUNT(*) AS sum_views
FROM ".$phpAds_config['tbl_adviews']."
WHERE t_stamp <= ".$begin."
AND t_stamp >= ".$end."
GROUP BY hour
";
}
$res = phpAds_dbQuery($query);
while ($row = phpAds_dbFetchArray($res))
{
$profile [$row['hour']] = (int)$row['sum_views'];
}
return ($profile);
}
function phpAds_PriorityPredictProfile($campaigns, $banners)
{
global $phpAds_config;
global $debug, $debuglog;
$real_profile = array (0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0);
$profile_correction_executed = false;
// Get the number of days running
if ($phpAds_config['compact_stats'])
{
$res = phpAds_dbQuery("SELECT UNIX_TIMESTAMP(MIN(day)) AS days_running FROM ".$phpAds_config['tbl_adstats']." WHERE day > 0 AND hour > 0");
$days_running = phpAds_dbResult($res, 0, 'days_running');
}
else
{
$res = phpAds_dbQuery("SELECT UNIX_TIMESTAMP(MIN(t_stamp)) AS days_running FROM ".$phpAds_config['tbl_adviews']);
$days_running = phpAds_dbResult($res, 0, 'days_running');
}
if ($days_running > 0)
{
$days_running = mktime (0, 0, 0, date('m'), date('d'), date('Y')) - $days_running;
$days_running = round ($days_running / (60 * 60 * 24)) - 1;
}
else
$days_running = 0;
// BEGIN REPORTING
$debuglog .= "-----------------------------------------------------\n";
$debuglog .= "Number of days running: $days_running\n";
// END REPORTING
if ($days_running >= 8)
{
// determine the history
if ($days_running > 13)
$use_days = $days_running - 7;
else
$use_days = 6;
// get total impressions last {$use_days} days
$impressions_this_week = phpAds_PriorityGetImpressions ($use_days, 0);
// get total impressions last {$use_days} days last week
$impressions_last_week = phpAds_PriorityGetImpressions ($use_days, 7);
// BEGIN REPORTING
$debuglog .= "Using data from data from this week and last week\n";
$debuglog .= "Days fetched: $use_days\n";
$debuglog .= "Impressions up to this week: ".$impressions_this_week."\n";
$debuglog .= "Impressions up to last week: ".$impressions_last_week."\n";
// END REPORTING
if ($impressions_last_week > 0)
{
// determine trend
$trend = $impressions_this_week / $impressions_last_week;
// get profile seven days ago
$profile = phpAds_PriorityGetHourlyProfile (1, 7);
// apply trend
for ($i=0;$i<count($profile);$i++)
$profile[$i] = (int)round ($profile[$i] * $trend);
// BEGIN REPORTING
$debuglog .= sprintf("Trend: %.4f\n", $trend);
// END REPORTING
}
else
{
// no stats for last week, fall back to looking only at yesterday
$days_running = 1;
// BEGIN REPORTING
$debuglog .= "No stats up to last week: days running set to 1\n";
// END REPORTING
}
// BEGIN REPORTING
$debuglog .= "-----------------------------------------------------\n\n\n";
// END REPORTING
}
if ($days_running >= 2 && $days_running < 8)
{
// BEGIN REPORTING
$debuglog .= "Using data from data from the last couple of days\n";
$debuglog .= "-----------------------------------------------------\n\n\n";
// END REPORTING
// get last couple of days
$profile = phpAds_PriorityGetHourlyProfile ($days_running, 0);
// average
for ($i=0;$i<count($profile);$i++)
$profile[$i] = (int)round ($profile[$i] / $days_running);
}
if ($days_running == 1)
{
// BEGIN REPORTING
$debuglog .= "Using data from data from yesterday\n";
$debuglog .= "-----------------------------------------------------\n\n\n";
// END REPORTING
// get yesterday
$profile = phpAds_PriorityGetHourlyProfile ($days_running, 0);
}
// BEGIN REPORTING
$debuglog .= "PREDICTED PROFILE\n";
$debuglog .= "-----------------------------------------------------\n";
$debuglog .= phpAds_PriorityPrintProfile($profile);
$debuglog .= "\n\n\n";
// END REPORTING
if ($phpAds_config['compact_stats'])
{
$begin = date('Ymd', mktime (0, 0, 0, date('m'), date('d'), date('Y')));
$query = "
SELECT hour, SUM(views) AS sum_views
FROM ".$phpAds_config['tbl_adstats']."
WHERE day = ".$begin."
AND hour < ".phpAds_CurrentHour."
GROUP BY hour
";
}
else
{
$begin = date('YmdHis', mktime (0, 0, 0, date('m'), date('d'), date('Y')));
$end = date('YmdHis', mktime (phpAds_CurrentHour, 0, 0, date('m'), date('d'), date('Y')) - 1);
$query = "
SELECT HOUR(t_stamp) AS hour, COUNT(*) AS sum_views
FROM ".$phpAds_config['tbl_adviews']."
WHERE t_stamp >= ".$begin."
AND t_stamp <= ".$end."
GROUP BY hour
";
}
$res = phpAds_dbQuery($query);
$real_up_till_now = 0;
while ($row = phpAds_dbFetchArray($res))
{
$real_profile [$row['hour']] = $row['sum_views'];
$real_up_till_now += $row['sum_views'];
}
// BEGIN REPORTING
$debuglog .= "REAL VALUES UP TILL ".phpAds_CurrentHour.":00 \n";
$debuglog .= "-----------------------------------------------------\n";
$debuglog .= phpAds_PriorityPrintProfile($real_profile);
$debuglog .= "\n\n\n";
// END REPORTING
// Calculate total predicted profile
$total_profile = 0;
for ($i=0;$i<24;$i++)
$total_profile += isset($profile[$i]) ? $profile[$i] : 0;
// Adjust profile with real data
if ($total_profile > 0)
{
if (phpAds_CurrentHour > 0)
{
$predicted_today = 0;
for ($i=0;$i<24;$i++)
$predicted_today += isset($profile[$i]) ? $profile[$i] : 0;
$predicted_up_till_now = 0;
for ($i=0;$i<phpAds_CurrentHour;$i++)
$predicted_up_till_now += isset($profile[$i]) ? $profile[$i] : 0;
$predicted_left_today = $predicted_today - $predicted_up_till_now;
// BEGIN REPORTING
$debuglog .= "Predicted impressions today: $predicted_today \n";
$debuglog .= "Predicted impression up till now: $predicted_up_till_now \n";
$debuglog .= "Predicted impressions left today: $predicted_left_today \n";
$debuglog .= "-----------------------------------------------------\n";
// END REPORTING
// Adjust prediction for today
if ($predicted_up_till_now > 0)
{
$importance_old = (sin(M_PI*(sin(M_PI*pow(phpAds_CurrentHour/24, 0.9)-M_PI/2)+1)/2-M_PI/2)+1)/2;
$deviance_old = ($real_up_till_now / $predicted_up_till_now - 1) * $importance_old + 1;
// Matteo
$profile_correction_done = false;
while (!$profile_correction_done)
{
for ($i=phpAds_CurrentHour;$i>0;$i--)
{
$deviance = phpAds_PriorityGetDeviance($i, $profile, $real_profile);
if ($deviance > 2.25)
{
// BEGIN REPORTING
$debuglog .= sprintf("Got deviance %.4f at %02d:00\n", $deviance, $i);
// END REPORTING
$k = $i > 1 ? $i - 1 : $i;
while ($k && phpAds_PriorityGetDeviance($k, $profile, $real_profile) > $deviance)
{
// BEGIN REPORTING
$debuglog .= sprintf("Got greater deviance (%.4f) at %02d:00\n", $deviance, $k);
// END REPORTING
$k--;
}
$deviance = (phpAds_PriorityGetDeviance($k, $profile, $real_profile) +
phpAds_PriorityGetDeviance($k == phpAds_CurrentHour ? $k : $k+1, $profile, $real_profile)) / 2;
for ($j=0;$j<$k;$j++)
{
$profile[$j] = ($profile[$j] ? $profile[$j] : 1) * $deviance;
$profile_correction_executed = true;
}
break;
}
if ($i == 1)
$profile_correction_done = true;
}
}
if ($profile_correction_executed)
{
for ($i=0;$i<24;$i++)
$profile[$i] = round($profile[$i]);
$predicted_today = 0;
for ($i=0;$i<24;$i++)
$predicted_today += $profile[$i];
$predicted_up_till_now = 0;
for ($i=0;$i<phpAds_CurrentHour;$i++)
$predicted_up_till_now += $profile[$i];
$predicted_left_today = $predicted_today - $predicted_up_till_now;
}
$deviance = phpAds_PriorityGetDeviance(phpAds_CurrentHour, $profile, $real_profile);
// BEGIN REPORTING
$debuglog .= "Importance factor: ".sprintf('%.4f (%.4f)', phpAds_PriorityGetImportance(phpAds_CurrentHour), $importance_old)." \n";
$debuglog .= "Deviance: ".sprintf('%.4f (%.4f)', $deviance, $deviance_old)." \n";
$debuglog .= "-----------------------------------------------------\n";
if ($profile_correction_executed)
{
$debuglog .= "Predicted impressions today after correction: $predicted_today \n";
$debuglog .= "Predicted impression up till now after correction: $predicted_up_till_now \n";
$debuglog .= "Predicted impressions left today after correction: $predicted_left_today \n";
$debuglog .= "\n\nNEW PREDICTED PROFILE\n";
$debuglog .= "-----------------------------------------------------\n";
$debuglog .= phpAds_PriorityPrintProfile($profile);
$debuglog .= "\n\n\n";
}
// END REPORTING
$real_left_today = round($predicted_left_today * $deviance);
}
else
{
$real_left_today = $predicted_today;
}
// Create new profile based on new prediction
// and real data
$real_today = $real_left_today + $real_up_till_now;
if ($predicted_left_today > 0)
$adjustment = $real_left_today / $predicted_left_today;
else
$adjustment = 1;
// BEGIN REPORTING
$debuglog .= "Real impressions up till now: $real_up_till_now \n";
// END REPORTING
if ($predicted_up_till_now)
{
// BEGIN REPORTING
$debuglog .= "Adjustment: $adjustment\n";
$debuglog .= "Adjusted predicted impressions today: $real_today\n";
$debuglog .= "Adjusted predicted impressions left today: $real_left_today\n";
$debuglog .= "-----------------------------------------------------\n";
// END REPORTING
}
if ($adjustment > 0)
{
for ($i=0;$i<24;$i++)
{
if ($i<phpAds_CurrentHour)
{
if (!$profile_correction_executed)
$profile[$i] = (int)$real_profile[$i];
}
else
$profile[$i] = (int)round($profile[$i] * $adjustment);
}
}
elseif (!$profile_correction_executed) // ??????
{
for ($i=0;$i<phpAds_CurrentHour;$i++)
$profile[$i] = (int)$real_profile[$i];
}
}
}
else
{
if ($real_up_till_now > 0 && phpAds_CurrentHour > 0)
{
$predicted_today = $real_up_till_now / phpAds_CurrentHour * 24;
$predicted_left_today = $predicted_today - $real_up_till_now;
$hours_left_today = 24 - phpAds_CurrentHour;
for ($i=0;$i<24;$i++)
{
if ($i<phpAds_CurrentHour)
$profile[$i] = isset($real_profile[$i]) ? $real_profile[$i] : 0;
else
$profile[$i] = (int)round($predicted_left_today / $hours_left_today);
}
}
else
{
// No data available
// Now it is time to make something up :)
for ($i=0;$i<24;$i++)
{
if ($i<phpAds_CurrentHour)
$profile[$i] = isset($real_profile[$i]) ? $real_profile[$i] : 0;
else
$profile[$i] = isset($total_target) ? (int)round($total_target / 24) : 0;
}
}
}
// Calculate total predicted profile
$total_profile = 0;
for ($i=0;$i<24;$i++)
$total_profile += $profile[$i];
// Calculate total impressions target
$total_target = 0;
for (reset($campaigns);$c=key($campaigns);next($campaigns))
$total_target += $campaigns[$c]['target'];
if ($total_profile == 0)
{
// No data available, profile is completely zero
// create a profile to match campaign weights only
$total_campaign_weight = 0;
for (reset($campaigns);$c=key($campaigns);next($campaigns))
$total_campaign_weight += $campaigns[$c]['weight'];
$total_banner_weight = 0;
for (reset($banners);$b=key($banners);next($banners))
$total_banner_weight += $banners[$b]['weight'];
$total_weight = $total_banner_weight * $total_campaign_weight;
for ($i=0;$i<24;$i++)
$profile[$i] = (int)$total_weight;
$profile_correction_executed = false;
}
// BEGIN REPORTING
$debuglog .= "\n\n\nADJUSTED PROFILE\n";
$debuglog .= "-----------------------------------------------------\n";
$debuglog .= phpAds_PriorityPrintProfile($profile);
$debuglog .= "\n\n\n";
// END REPORTING
return array ($profile, $profile_correction_executed);
}
function phpAds_PriorityPrepareCampaigns()
{
global $phpAds_config;
$campaigns = array();
$query = "
SELECT DISTINCT
c.clientid AS clientid,
c.weight AS weight,
c.target AS target
FROM
".$phpAds_config['tbl_clients']." AS c,
".$phpAds_config['tbl_banners']." AS b
WHERE
c.clientid = b.clientid AND
c.parent > 0 AND
c.active='t' AND
b.active='t' AND
(c.weight + c.target) > 0
";
$res = phpAds_dbQuery($query);
while ($row = phpAds_dbFetchArray($res))
{
$campaigns[$row['clientid']] = $row;
}
return $campaigns;
}
function phpAds_PriorityPrepareBanners()
{
global $phpAds_config;
$banners = array();
// Get all banners
$query = "
SELECT bannerid, weight, clientid AS parent
FROM ".$phpAds_config['tbl_banners']."
WHERE active='t' AND weight > 0
";
$res = phpAds_dbQuery($query);
while ($row = phpAds_dbFetchArray($res))
{
$banners[$row['bannerid']] = $row;
}
// Get statistics
if ($phpAds_config['compact_stats'])
{
$begin = date ('Ymd', mktime (0, 0, 0, date('m'), date('d'), date('Y')));
$end = date ('Ymd', mktime (phpAds_CurrentHour, 0, 0, date('m'), date('d'), date('Y')) - 1);
$query = "
SELECT bannerid, SUM(views) as sum_views
FROM ".$phpAds_config['tbl_adstats']."
WHERE day = ".$begin."
AND hour < ".phpAds_CurrentHour."
GROUP BY bannerid
";
}
else
{
$begin = date ('YmdHis', mktime (0, 0, 0, date('m'), date('d'), date('Y')));
$end = date ('YmdHis', mktime (phpAds_CurrentHour, 0, 0, date('m'), date('d'), date('Y')) - 1);
$query = "
SELECT bannerid, count(*) as sum_views
FROM ".$phpAds_config['tbl_adviews']."
WHERE t_stamp >= ".$begin."
AND t_stamp <= ".$end."
GROUP BY bannerid
";
}
$res = phpAds_dbQuery($query);
while ($row = phpAds_dbFetchArray($res))
{
if (isset($banners[$row['bannerid']]))
{
$banners[$row['bannerid']]['hits'] = $row['sum_views'];
}
}
return $banners;
}
function phpAds_PriorityStore($banners)
{
global $phpAds_config;
// Reset existing priorities
$query = "
UPDATE ".$phpAds_config['tbl_banners']."
SET priority = 0
";
$res = phpAds_dbQuery($query);
// Set correct priority
for (reset($banners);$b=key($banners);next($banners))
{
$query = "
UPDATE ".$phpAds_config['tbl_banners']."
SET priority = ".(isset($banners[$b]['priority']) ? $banners[$b]['priority'] : 0)."
WHERE bannerid = ".$banners[$b]['bannerid']."
";
$res = phpAds_dbQuery($query);
}
}
function phpAds_PriorityCalculate()
{
global $debug, $debuglog;
// Prepare information
$banners = phpAds_PriorityPrepareBanners();
$campaigns = phpAds_PriorityPrepareCampaigns();
$profile = array();
// Determine period
$maxperiod = 24;
$period = phpAds_CurrentHour;
// Populate campaign statistics
$total_requested = 0;
$total_weight = 0;
$total_targeted_hits = 0;
$total_other_hits = 0;
for (reset($campaigns);$c=key($campaigns);next($campaigns))
{
$targeted_hits = 0;
$other_hits = 0;
if ($campaigns[$c]['target'] > 0)
{
for (reset($banners);$b=key($banners);next($banners))
if ($banners[$b]['parent'] == $c)
$targeted_hits += isset($banners[$b]['hits']) ? $banners[$b]['hits'] : 0;
$total_targeted_hits += $targeted_hits;
$total_requested += $campaigns[$c]['target'];
}
else
{
$bannercount = 0;
for (reset($banners);$b=key($banners);next($banners))
if ($banners[$b]['parent'] == $c)
{
$other_hits += isset($banners[$b]['hits']) ? $banners[$b]['hits'] : 0;
$bannercount++;
}
$total_other_hits += $other_hits;
if ($bannercount > 0)
$total_weight += $campaigns[$c]['weight'];
}
$campaigns[$c]['hits'] = $targeted_hits + $other_hits;
}
if ($total_requested)
{
// High pri campaigns present, run profiling
list($profile, $profile_correction_executed) = phpAds_PriorityPredictProfile($campaigns, $banners);
// Determine estimated number of hits
$corrected_hits = 0;
$estimated_hits = 0;
for ($p=0; $p<24; $p++)
{
$corrected_hits += $profile_correction_executed && $p < phpAds_CurrentHour ? $profile[$p] : 0;
$estimated_hits += $profile[$p];
}
// Apply correction to other hits
if ($profile_correction_executed)
{
// BEGIN REPORTING
$debuglog .= "\n\n";
$debuglog .= "Removed ".($total_targeted_hits+$total_other_hits-$corrected_hits)." hits added during peak compensation\n";
// END REPORTING
$total_other_hits = $corrected_hits - $total_targeted_hits;
}
$total_hits = $total_targeted_hits + $total_other_hits;
$estimated_remaining = $estimated_hits - $total_hits;
$requested_remaining = $total_requested - $total_targeted_hits;
if ($estimated_remaining > $requested_remaining)
{
$available_for_targeting = $requested_remaining;
$available_for_others = $estimated_remaining - $requested_remaining;
}
else
{
$available_for_targeting = $estimated_remaining;
$available_for_others = 0;
}
// BEGIN REPORTING
$debuglog .= "\n\n";
$debuglog .= "Estimated number of impressions today: $estimated_hits \n";
$debuglog .= "Estimated number of impressions remaining: $estimated_remaining \n";
$debuglog .= "-----------------------------------------------------\n";
$debuglog .= "Total number of requested impressions: $total_requested \n";
$debuglog .= "Number of requested impressions satisfied: $total_targeted_hits \n";
$debuglog .= "Number of requested impressions remaining: $requested_remaining \n";
$debuglog .= "-----------------------------------------------------\n\n\n";
$debuglog .= "Impressions available to meet the targets: $available_for_targeting \n";
$debuglog .= "Impressions left over: $available_for_others \n";
$debuglog .= "-----------------------------------------------------\n";
// END REPORTING
$totalassigned = 0;
for (reset($campaigns);$c=key($campaigns);next($campaigns))
{
if ($campaigns[$c]['target'] > 0)
{
// BEGIN REPORTING
$debuglog .= "\n\n\nCAMPAIGN $c \n";
$debuglog .= "-----------------------------------------------------\n";
// END REPORTING
// Hits assigned =
$remaining_for_campaign = $campaigns[$c]['target'] - $campaigns[$c]['hits'];
// Determine expected hits uptil period
if (!isset($profile[$period]) || $profile[$period] == 0)
{
$expected_hits_this_period = round($campaigns[$c]['target'] / $maxperiod * ($period));
}
else
{
$total_profile = 0;
for ($p=0;$p<$maxperiod;$p++)
$total_profile += $profile[$p];
$profile_uptil_now = 0;
for ($p=0;$p<phpAds_CurrentHour;$p++)
$profile_uptil_now += $profile[$p];
$expected_hits_this_period = round ($profile_uptil_now / $total_profile * $campaigns[$c]['target']);
}
// BEGIN REPORTING
$debuglog .= "Remaining for campaign: $remaining_for_campaign \n";
$debuglog .= "Real impressions up till now: ".$campaigns[$c]['hits']." \n";
$debuglog .= "Expected impressions up till now: $expected_hits_this_period \n";
// END REPORTING
if ($period > 0)
$extra_to_assign = $expected_hits_this_period - $campaigns[$c]['hits'];
else
$extra_to_assign = 0;
$extra_to_assign = $extra_to_assign * ($maxperiod - $period);
$remaining_for_campaign += $extra_to_assign;
if ($remaining_for_campaign < 0)
$remaining_for_campaign = 0;
// BEGIN REPORTING
$debuglog .= "Compensate by: $extra_to_assign \n";
$debuglog .= "Priority for whole campaign: $remaining_for_campaign \n";
// END REPORTING
$totalassigned += $remaining_for_campaign;
$total_banner_weight = 0;
for (reset($banners);$b=key($banners);next($banners))
if ($banners[$b]['parent'] == $c)
$total_banner_weight += $banners[$b]['weight'];
for (reset($banners);$b=key($banners);next($banners))
if ($banners[$b]['parent'] == $c)
{
$banners[$b]['priority'] = round ($remaining_for_campaign / $total_banner_weight * $banners[$b]['weight']);
// BEGIN REPORTING
$debuglog .= "- Priority of banner $b: ".$banners[$b]['priority']." \n";
// END REPORTING
}
}
}
//$available_for_others = $estimated_remaining - $totalassigned;
// BEGIN REPORTING
$debuglog .= "\n\n\n";
$debuglog .= "Impressions assigned to meet the targets: $totalassigned \n";
// END REPORTING
}
else
{
// BEGIN REPORTING
$debuglog .= "-----------------------------------------------------\n";
$debuglog .= "No targeding needed, skipping profile prediction.\n";
// END REPORTING
$total_campaign_weight = 0;
for (reset($campaigns);$c=key($campaigns);next($campaigns))
$total_campaign_weight += $campaigns[$c]['weight'];
$total_banner_weight = 0;
for (reset($banners);$b=key($banners);next($banners))
$total_banner_weight += $banners[$b]['weight'];
$available_for_others = $total_banner_weight * $total_campaign_weight;
}
// BEGIN REPORTING
$debuglog .= "Impressions left over: $available_for_others \n";
$debuglog .= "-----------------------------------------------------\n";
// END REPORTING
for (reset($campaigns);$c=key($campaigns);next($campaigns))
{
if ($campaigns[$c]['target'] == 0)
{
// BEGIN REPORTING
$debuglog .= "\n\n\nCAMPAIGN $c \n";
$debuglog .= "-----------------------------------------------------\n";
// END REPORTING
if ($available_for_others > 0)
$remaining_for_campaign = round ($available_for_others / $total_weight * $campaigns[$c]['weight']);
else
$remaining_for_campaign = 0;
// BEGIN REPORTING
$debuglog .= "Remaining for campaign: $remaining_for_campaign \n";
// END REPORTING
$total_banner_weight = 0;
for (reset($banners);$b=key($banners);next($banners))
if ($banners[$b]['parent'] == $c)
$total_banner_weight += $banners[$b]['weight'];
for (reset($banners);$b=key($banners);next($banners))
if ($banners[$b]['parent'] == $c)
{
$banners[$b]['priority'] = round ($remaining_for_campaign / $total_banner_weight * $banners[$b]['weight']);
// BEGIN REPORTING
$debuglog .= "- Assigned priority to banner $b: ".$banners[$b]['priority']." \n";
// END REPORTING
}
}
}
// Store priority information
phpAds_PriorityStore($banners);
return ($debuglog);
}
function phpAds_PriorityGetImportance($hour)
{
$importance = (sin(M_PI*pow($hour/24, 0.9)-M_PI/2)+1)/2;
$importance = (sin(M_PI*$importance-M_PI/2)+1)/2;
return $importance;
}
function phpAds_PriorityGetDeviance($hour, $profile, $real_profile)
{
$predicted = 0;
$real = 0;
for ($i=0;$i<$hour;$i++)
{
$predicted += isset($profile[$i]) ? $profile[$i] : 0;
$real += isset($real_profile[$i]) ? $real_profile[$i] : 0;
}
if (!$predicted)
$predicted = 0.1;
return (($real / $predicted)-1) * phpAds_priorityGetImportance($hour) + 1;
}
function phpAds_PriorityPrintProfile($profile)
{
$debuglog = '';
for ($i=0;$i<24;$i++)
{
if ($i && !($i % 6))
$debuglog .= "\n";
$debuglog .= sprintf('%7d', isset($profile[$i]) ? $profile[$i] : '0')." ";
}
return $debuglog;
}
?>
|