Robert A Bridges

Robert Bridges Picture

Robert A Bridges

Research Mathematician


Robert Bridges (Bobby) is a researcher in ORNL's Cyber and Information Security Research Group. After completing a PhD in complex analysis and operator theory (pure mathematics) at Purdue University, Bobby joined ORNL as a postdoc and later full scientist. Bobby's current research involves applications of math and statistics to cyber security data. In particular, applications of graph theory, function theory, and anomaly detection to network data and power profile data are of recent interest as well as applications of natural language processing to text involving cyber information. 

More information is available at


2016 ORNL Best Seed Project Poster Award (J. Nichols, R.A. Bridges, J. Hernandez, S. Prowell, "Towards a Malware Detection Framework Based on Power Consumption Monitoring")

2016 CISRC Best Short Paper Award (C.R. Harshaw, R.A. Bridges, M.D. Iannacone, J.R. Goodall, "GraphPrints: Towards a Graph Analytic Method for Network Anomaly Detection")

2015 CISRC Runner-Up Short Paper Award (C.L. Jones, R.A. Bridges, K.T. Huffer, J.R. Goodall “Towards a relation extraction framework for cyber-security objects” )

2013 ORNL Postdoc Association Best Presentation Award ("A Principled Approach to Anomaly Detection", R.A. Bridges)


Information on Selected Projects


Selected Publications, Preprints, & Abstracts
Graph Theory + Anomaly Detection Papers
Anomaly Detection Threshold Papers
NLP + Cyber Papers 
Other Security Related Papers 
Composition Operator Papers