US 12,468,804 B2
Data classification device, data classification method, and data classification program
Toshiki Shibahara, Musashino (JP); Daiki Chiba, Musashino (JP); Mitsuaki Akiyama, Musashino (JP); and Kunio Hato, Musashino (JP)
Assigned to NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
Appl. No. 17/283,254
Filed by NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
PCT Filed Oct. 7, 2019, PCT No. PCT/JP2019/039447
§ 371(c)(1), (2) Date Apr. 7, 2021,
PCT Pub. No. WO2020/075662, PCT Pub. Date Apr. 16, 2020.
Claims priority of application No. 2018-191174 (JP), filed on Oct. 9, 2018.
Prior Publication US 2021/0342651 A1, Nov. 4, 2021
Int. Cl. G06N 20/00 (2019.01); G06F 18/10 (2023.01); G06F 18/241 (2023.01); G06F 18/2431 (2023.01); G06F 21/56 (2013.01)
CPC G06F 21/56 (2013.01) [G06F 18/10 (2023.01); G06F 18/241 (2023.01); G06F 18/2431 (2023.01); G06N 20/00 (2019.01)] 7 Claims
OG exemplary drawing
 
1. A data classification device, comprising:
a memory; and
a processor coupled to the memory and programmed to execute a process comprising:
receiving an input of known data, the known data being data already classified into a class and a subclass subordinate to the class;
extracting features from the known data, wherein the features which are extracted are features shared between the subclasses in the class;
determining whether classification of the known data belonging to the class into a subclass existing within the subclasses using a feature of the features which are extracted is a success or failure;
outputting the feature if it is determined that the feature causes the classification to fail; and
classifying classification target data into a class indicating malicious or not using the output feature for detecting an attack and notifying a terminal which sent the classification target data of a result of the classifying.