| <?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 VALUE_LARGE_CONTRACT_OVERALL($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); |
| } | } |
| - 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( |
| "description" => "unusual value for time of year"); | |
| $heuristics["METADATA_DUPLICATED_DESCRIPTION"] = Array( | /* |
| "description" => "unusual value for time of year"); | - unusual variation amount - absolute value; large reductions as well as large increases |
| function METADATA_DUPLICATED_DESCRIPTION($cn) | */ |
| { | $heuristics["VALUE_LARGE_VARIATION"] = Array( |
| $averageContractPeriod = getAverageContractPeriod(); | "description" => "unusual value for time of year"); |
| $diff = strtotime($cn['contractStart']) - strtotime($cn['publishDate']); | |
| $days = intval($diff / 24); | function VALUE_LARGE_VARIATION($cn) { |
| return ($days > 45 ? 1 : 0); | $averageContractPeriod = getAverageContractPeriod(); |
| $diff = strtotime($cn['contractStart']) - strtotime($cn['publishDate']); | |
| $days = intval($diff / 24); | |
| return ($days > 45 ? 1 : 0); | |
| } | } |
| /* - unusual value for time of year | |
| - compare to all other records in last 2 weeks | |
| - ie. many large contracts in june so takes more to standout */ | |
| $heuristics["VALUE_HIGH_FOR_MONTH"] = Array( | |
| "description" => "unusual value for time of year" | |
| ); | |
| function VALUE_HIGH_FOR_MONTH($cn, $monthAsInt) { | |
| $averageContractPeriod = getAverageContractPeriod(); | |
| $diff = strtotime($cn['contractStart']) - strtotime($cn['publishDate']); | |
| $days = intval($diff / 24); | |
| return ($days > 45 ? 1 : 0); | |
| } | |
| $monthlyValueAverage = Array(); | |
| function getAgencyTransactions($agencyName) { | |
| global $agencyTransactions; | |
| if (!$agencyTransactions[$agencyName]) { | |
| $query = 'select count(*) from contractnotice where agencyName = "' . $agencyName . '"'; | |
| $result = $conn->query($query); | |
| $r = $result->fetch(PDO::FETCH_BOTH); | |
| $agencyTransactions[$agencyName] = $r[0]; | |
| } | |
| return $agencyTransactions[$agencyName]; | |
| } | |
| ?> |