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<?php |
- large contract value |
/* - large contract value |
- chi-square test for outliers / standard dev from mean/median |
- standard dev from mean/median |
- percent of total contracts for supplier/agency |
- percent of total contracts for supplier/agency*/ |
$heuristics["METADATA_DUPLICATED_DESCRIPTION"] = Array( |
$heuristics["VALUE_LARGE_CONTRACT_OVERALL"] = Array( |
"description" => "unusual value for time of year"); |
"description" => "unusual value for time of year"); |
function METADATA_DUPLICATED_DESCRIPTION($cn) |
function METADATA_DUPLICATED_DESCRIPTION($cn) |
{ |
{ |
$averageContractPeriod = getAverageContractPeriod(); |
$averageContractPeriod = getAverageContractPeriod(); |
$diff = strtotime($cn['contractStart']) - strtotime($cn['publishDate']); |
$diff = strtotime($cn['contractStart']) - strtotime($cn['publishDate']); |
$days = intval($diff / 24); |
$days = intval($diff / 24); |
return ($days > 45 ? 1 : 0); |
return ($days > 45 ? 1 : 0); |
} |
} |
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- peculiar value |
/* - peculiar value |
- Just under 80k, amplified if other contracts with same supplier are just under |
- Just under 80k, amplified if other contracts with same supplier are just under |
- unusual variation amount |
*/ |
- absolute value; large reductions as well as large increases |
$heuristics["VALUE_NEAR_THRESHOLD"] = Array( |
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"description" => "unusual value for time of year"); |
$heuristics["METADATA_DUPLICATED_DESCRIPTION"] = Array( |
/* |
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- unusual variation amount - absolute value; large reductions as well as large increases |
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*/ |
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$heuristics["VALUE_LARGE_VARIATION"] = Array( |
"description" => "unusual value for time of year"); |
"description" => "unusual value for time of year"); |
function METADATA_DUPLICATED_DESCRIPTION($cn) |
function METADATA_DUPLICATED_DESCRIPTION($cn) |
{ |
{ |
$averageContractPeriod = getAverageContractPeriod(); |
$averageContractPeriod = getAverageContractPeriod(); |
$diff = strtotime($cn['contractStart']) - strtotime($cn['publishDate']); |
$diff = strtotime($cn['contractStart']) - strtotime($cn['publishDate']); |
$days = intval($diff / 24); |
$days = intval($diff / 24); |
return ($days > 45 ? 1 : 0); |
return ($days > 45 ? 1 : 0); |
} |
} |
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/* - unusual value for time of year |
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- compare to all other records in last 2 weeks |
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- ie. many large contracts in june so takes more to standout*/ |
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$heuristics["VALUE_HIGH_FOR_MONTH"] = Array( |
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"description" => "unusual value for time of year" |
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); |
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function VALUE_HIGH_FOR_MONTH($cn, $monthAsInt) |
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{ |
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$averageContractPeriod = getAverageContractPeriod(); |
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$diff = strtotime($cn['contractStart']) - strtotime($cn['publishDate']); |
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$days = intval($diff / 24); |
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return ($days > 45 ? 1 : 0); |
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} |
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$monthlyValueAverage = Array(); |
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function getAgencyTransactions($agencyName) |
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{ |
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global $agencyTransactions; |
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if (!$agencyTransactions[$agencyName]) { |
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$query = 'select count(*) from contractnotice where agencyName = "' . $agencyName . '"'; |
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$result = mysql_query($query); |
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$r = mysql_fetch_array($result, MYSQL_BOTH); |
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$agencyTransactions[$agencyName] = $r[0]; |
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} |
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return $agencyTransactions[$agencyName]; |
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} |
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?> |