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1. (WO2017217163) ACCESS CLASSIFICATION DEVICE, ACCESS CLASSIFICATION METHOD, AND ACCESS CLASSIFICATION PROGRAM

Pub. No.:    WO/2017/217163    International Application No.:    PCT/JP2017/018213
Publication Date: Fri Dec 22 00:59:59 CET 2017 International Filing Date: Tue May 16 01:59:59 CEST 2017
IPC: G06F 17/30
Applicants: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
日本電信電話株式会社
Inventors: SHIBAHARA, Toshiki
芝原 俊樹
YAGI, Takeshi
八木 毅
AKIYAMA, Mitsuaki
秋山 満昭
TAKATA, Yuta
高田 雄太
Title: ACCESS CLASSIFICATION DEVICE, ACCESS CLASSIFICATION METHOD, AND ACCESS CLASSIFICATION PROGRAM
Abstract:
Provided is an access classification device (10), comprising a tree building unit (13), a node association unit (14), a similarity computation unit (15), and a classification unit (16). The tree building unit (13) creates a plurality of trees in which at least a first destination and a second destination are nodes, content information which corresponds to the nodes is attached to the nodes, and an instruction which transfers a series of accesses from the first destination to the second destination is an edge. For the plurality of trees, the node association unit (14) associates the nodes of the plurality of trees on the basis of a local structure similarity of each of the trees. The similarity computation unit (15) computes the similarities of the associated nodes on the basis of the content information, and computes the similarities of the plurality of trees using the computed similarities of the nodes. On the basis of the computed similarities, the classification unit (16) classifies the accesses into sets of similar characteristics.