The invention and the imaginary order account extraction method using the transaction information received in real-time output of each event total orders of each account corresponding to today, and comparing the total order of the calculation to each event to account for the less than top set Rating after extraction with charges the account, or the signed ratio compared to the total order less than the first set value from among the charges account, and extracts the account the rate of change less than the second set value to the first imaginary order account, the first imaginary order account each for, in the event of as setting date from today in account the combination of creating a reverse sale by today's account combination combined with the account within a predetermined time range from the imaginary time of order, and previously obtained through the first to fourth step il compared to the combination with the account, the account of the combination of today, the event and it extracts the account in combination with redundancy. Then, the final decision of the account of the account in the redundancy extracted in the order in combination with the imaginary account.
展开▼
