--- a/heuristics/historyHeuristics.php +++ b/heuristics/historyHeuristics.php @@ -1,6 +1,25 @@ - - unusual for agency/supplier - - previous low number of transactions - - zero ie. new agency/supplier is huge score - - unusual value for time of year +<?php + // "unusual for agency/supplier due to previous low number of transactions " +$heuristics["HISTORY_LOW_TRANSACTIONS"] = Array( + "description" => "unusual for agency/supplier due to previous low number of transactions " +); +function HISTORY_LOW_TRANSACTIONS($cn) +{ + $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 + - ie. many large contracts in june so takes more to standout*/ + + $heuristics["HISTORY_HIGH_VALUE_FOR_MONTH"] = Array( + "description" => "unusual value for time of year"); +function HISTORY_HIGH_VALUE_FOR_MONTH($cn) +{ + $averageContractPeriod = getAverageContractPeriod(); + $diff = strtotime($cn['contractStart']) - strtotime($cn['publishDate']); + $days = intval($diff / 24); + return ($days > 45 ? 1 : 0); +}