TRAFFIC CACHE SYSTEM, CACHE REPLACEMENT METHOD, CACHE DEVICE, AND CACHE PROGRAM

摘要

PROBLEM TO BE SOLVED: To enable collective management of cache devices that have to be prepared as many as the number of target applications, thereby reducing the number of devices and management costs.

SOLUTION: In the present invention: traffic data of each ISP is acquired; a ratio of applications to the traffic data is calculated; content access amount data for each application is acquired; popularity of a content is determined based on the number of accesses; the popularity is acquired; a duplicate applications are extracted; a score is determined based on the ratio of the applications, the duplicate applications, and the popularity for each application; a ranking list is created; scores of a content j being the lowest rank in cached contents and a requested content i are compared based on the ranking list; and the content i is downloaded in a cache area if the score of the content i is greater than j.

COPYRIGHT: (C)2012,JPO&INPIT