Understanding Cybersecurity Threat Trends Through Dynamic Topic Modeling

被引:6
|
作者
Sleeman, Jennifer [1 ]
Finin, Tim [1 ]
Halem, Milton [1 ]
机构
[1] Univ Maryland, Dept Comp Sci & Elect Engn, Baltimore, MD 21201 USA
来源
FRONTIERS IN BIG DATA | 2021年 / 4卷
关键词
cybersecurity; cyberthreat information; knowledge graph; topic modeling; dynamic topic modeling;
D O I
10.3389/fdata.2021.601529
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Cybersecurity threats continue to increase and are impacting almost all aspects of modern life. Being aware of how vulnerabilities and their exploits are changing gives helpful insights into combating new threats. Applying dynamic topic modeling to a time-stamped cybersecurity document collection shows how the significance and details of concepts found in them are evolving. We correlate two different temporal corpora, one with reports about specific exploits and the other with research-oriented papers on cybersecurity vulnerabilities and threats. We represent the documents, concepts, and dynamic topic modeling data in a semantic knowledge graph to support integration, inference, and discovery. A critical insight into discovering knowledge through topic modeling is seeding the knowledge graph with domain concepts to guide the modeling process. We use Wikipedia concepts to provide a basis for performing concept phrase extraction and show how using those phrases improves the quality of the topic models. Researchers can query the resulting knowledge graph to reveal important relations and trends. This work is novel because it uses topics as a bridge to relate documents across corpora over time.
引用
收藏
页数:13
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