ACCESS ORIGIN CLASSIFICATION DEVICE, ACCESS ORIGIN CLASSIFICATION METHOD, AND PROGRAM

摘要

To help improve the efficiency of the specification of the types of terminals that are the origins of access to services, this access origin classification device is made to comprise: a first calculation unit for using a set of access logs that each indicate access to a service from among a plurality of services by an access origin from among a plurality of access origins to calculate statistics for the access of each service by each access origin; an extraction unit for, for each service, using the access logs for the service to calculate index values indicating the distribution of the states of access to the service for each access origin, and extracting some of the services on the basis of the index values; a second calculation unit for applying cluster analysis to the statistics so as to calculate the degrees of association between each access origin and each service extracted by the extraction unit; and a classification unit for, on the basis of the degrees of association, classifying an access origin for one of the services extracted by the extraction unit into a group including one or more access origins.