REALTIME RANKING METHOD, REALTIME RANKING DEVICE, AND RANKING PROGRAM

摘要

PROBLEM TO BE SOLVED: To obtain a method capable of realizing realtime ranking output even for ranking which is changed by updating of large-volume data.;SOLUTION: Provided is a ranking method for outputting the ranking of object data required for service provision, where the ranking method includes: an order change information creation procedure for creating, upon a change of order in discretionary object data, order change information including an order change range in object data associated with the ranking of the discretionary object data and an order change value; an order updating procedure for updating, upon a request for output of the ranking of object data, the order of object data in the order change range on the basis of the order change information; and an output procedure for outputting the updated ranking of object data.;COPYRIGHT: (C)2015,JPO&INPIT