US 12,261,864 B2
Information analyzing apparatus, information analyzing method, and computer-readable recording medium
Keisuke Hashida, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Appl. No. 17/791,387
Filed by NEC Corporation, Tokyo (JP)
PCT Filed Jan. 15, 2020, PCT No. PCT/JP2020/001126
§ 371(c)(1), (2) Date Jul. 7, 2022,
PCT Pub. No. WO2021/144895, PCT Pub. Date Jul. 22, 2021.
Prior Publication US 2023/0066454 A1, Mar. 2, 2023
Int. Cl. H04L 9/40 (2022.01); G06F 40/157 (2020.01); G06F 40/279 (2020.01)
CPC H04L 63/1425 (2013.01) [G06F 40/157 (2020.01); G06F 40/279 (2020.01)] 15 Claims
OG exemplary drawing
 
8. An information analyzing method performed by a processor and comprising:
reading address information expressing a collection target, the address information recorded in a storage device;
accessing the Internet using the address information and obtain document information from web content at the address information;
detecting, using the document information, unknown word information expressing unknown words that are not included in a vocabulary of an analysis model and that cannot be recognized as named entities after applying named entity recognition to the document information, the analysis model for analyzing threat information;
extracting forum expression information from the detected unknown word information;
converting the forum expression information into formal expression information based on a conversion rule for converting a forum expression included in expression conversion information into a formal expression;
generating threat information structured information expressing structuring of threat information by inputting the formal expression information into the analysis model;
converting the threat information structured information into a format that can be output to an output device; and
outputting the converted output information to the output device.