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Cyberspace threat knowledge extraction method and device

A network space and knowledge extraction technology, applied in character and pattern recognition, special data processing applications, instruments, etc., can solve problems that cannot be applied well

Active Publication Date: 2020-08-28
NAT UNIV OF DEFENSE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Based on this, it is necessary to address the above technical problems and provide a cyberspace threat knowledge extraction method and device that can solve the hidden entity and relationship extraction problem that traditional structured information extraction technology cannot be well applied to the cyberspace threat knowledge graph.

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  • Cyberspace threat knowledge extraction method and device
  • Cyberspace threat knowledge extraction method and device

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Embodiment Construction

[0048] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0049] In one embodiment, such as figure 1 As shown, a cyberspace threat knowledge extraction method is provided, including the following steps:

[0050] Step 102, according to the pre-trained multi-label classifier, extract the ontology concept of the text to be extracted and the relationship between the ontology concepts.

[0051] A multi-label classifier is a model for semantic classification based on labels, such as the existing RNN model, CNN model, etc.

[0052] Ontology is the concept on the upper layer of the map. Generally speaking, ontology has no practical mea...

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Abstract

The invention relates to a cyberspace threat knowledge extraction method and device. The cyberspace threat knowledge extraction method comprises the steps of extracting ontology concepts of a to-be-extracted text and relationships among the ontology concepts according to a pre-trained multi-label classifier; extracting examples corresponding to the ontology concepts in the text to be extracted according to a pre-trained multi-class classifier of each ontology concept; and according to the entities corresponding to the ontology concepts and the relationship between the ontology concepts, determining the relationship between the instances. By adopting the cyberspace threat knowledge extraction method, the extraction problem of cyberspace threat knowledge in the unstructured text can be wellsolved by combining the hidden entity and the ontology relationship.

Description

technical field [0001] The present application relates to the technical field of knowledge graphs, in particular to a method and device for extracting cyberspace threat knowledge. Background technique [0002] Perceive cyberspace threats from all dimensions and from multiple perspectives, especially the intelligent and systematic recognition of tactics, combat techniques, vulnerabilities and products associated with advanced sustainable threat attacks, which will help improve the country and enterprises’ scientific knowledge of cyber threats. defense ability. In order to fully understand cyberspace threats, STIX 2.0 (Structured Threat Information Expression) describes cyberspace threat information from 12 components such as attack patterns, attack activities, and actions. Aiming at the structured language description of STIX 2.0, MITER has constructed ATT&CK framework (A Globally Accessible Knowledge base of CyberAdversary Tactics and Techniques), CAPEC attack pattern (Comm...

Claims

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Application Information

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IPC IPC(8): G06F16/36G06F16/35G06K9/62
CPCG06F16/367G06F16/355G06F18/241G06F18/214
Inventor 丁兆云黄松平刘蔚柯刘凯朱承朱先强刘斌汤罗浩刘毅周鋆
Owner NAT UNIV OF DEFENSE TECH
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