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Perceive: Proactive Exploration of Risky Concept Emergence for Identifying Vulnerabilities & ExposuresNational databases that collect various kinds of textual threat reports such as ASRS, CERT, and NVD manually process their reports individually. They then offer data products to disseminate the aggregate information, like newsletters, alerts or individual report searching. The goal of this research is to connect these individual reports thematically and temporally to identify emerging or recurring threats, by analyzing large collections of text, source code, collaboration and communication patterns. This capability, I argue, enables us to identify the emergence and recurrence of such themes, and the contexts in which they re-occur, facilitating faster and more capable mitigation. I propose two models to shed light on this goal: An empirical model of vulnerabilities as bugs, the commit flow model, and one of the vulnerabilities and aviation safety threats as topics, the topic flow model. I use as gold standard existing manual workflows in both domains, reflected in the existing data products by these organizations, and empirically evaluate if the automated model scan match or outperform existing manual practices.
Document ID
20210016858
Acquisition Source
Ames Research Center
Document Type
Thesis/Dissertation
Authors
Carlos V Paradis
(Wyle (United States) El Segundo, California, United States)
Date Acquired
June 2, 2021
Publication Date
May 15, 2021
Publication Information
Publisher: University of Hawaii
Subject Category
Aeronautics (General)
Air Transportation And Safety
Funding Number(s)
CONTRACT_GRANT: 80NSSC18K1044
Distribution Limits
Public
Copyright
Use by or on behalf of the US Gov. Permitted.
Technical Review
External Peer Committee
Keywords
ASRS
topic modeling
natural language processing
survey design
natural language understanding
aviation safety reporting system
NLP
NLU
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