| 摘要 |
PROBLEM TO BE SOLVED: To further reduce cost for storing data. ! SOLUTION: An information processing device includes: means for updating a valid duration representing an expiry date and time of each data item based on the number of accesses to each data item and a valid duration update policy for each group to which the data item belongs; and means for moving the data item as an expired data item based on the valid duration. ! COPYRIGHT: (C)2016,JPO&INPIT |
