Date of Award
3-23-2018
Document Type
Thesis
Degree Name
Master of Science in Operations Research
Department
Department of Operational Sciences
First Advisor
Bradley C. Boehmke, PhD.
Abstract
Every day, intrusion detection systems catalogue millions of unsupervised data entries. This represents a “big data” problem for research sponsors within the Department of Defense. In a first response to this issue, raw data capture was transformed into usable vectors and an array of multivariate techniques implemented to detect potential outliers. This research expands and refines these techniques by implementing a Chi-Square Q-Q plot-based classification criteria for outlier detection. This methodology has been implemented into an R-based programming solution that allows for a refined and semi-automated user experience for intelligence analysts. Moreover, two case analyses are performed that illustrate how this methodology explicitly identifies outlier observations and provides formal multivariate normality testing to assess the reliability of the techniques being utilized.
AFIT Designator
AFIT-ENS-MS-18-M-166
DTIC Accession Number
AD1056428
Recommended Citation
Trigo, Alexander M., "Outlier Classification Criterion for Multivariate Cyber Anomaly Detection" (2018). Theses and Dissertations. 1865.
https://scholar.afit.edu/etd/1865