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Sam Chatterjee

Pacific Northwest National Laboratory
PO Box 999
MSIN: K7-20
Richland, WA 99352


Samrat Chatterjee is an Operations Research Scientist with the National Security Directorate at the Pacific Northwest National Laboratory (PNNL). His research focuses on assessing and managing risks to critical cyber and physical infrastructure systems and processes from multiple hazards using interdisciplinary modeling, simulation, and operations research methods. His research activities at PNNL focus on national security in support of the Department of Homeland Security, Department of Energy, and the Department of Defense.

He recently co-authored a book on economic consequence analysis of disasters and has published/presented over 35 contributions in refereed journals and conferences including two best paper awards in cybersecurity and disaster resilience at an Institute of Electrical and Electronics Engineers (IEEE) homeland security conference. He is past chair of the Engineering and Infrastructure specialty group of the Society for Risk Analysis (SRA) and recently completed a membership term with the National Academies-Transportation Research Board’s (TRB) committee on Transportation of Hazardous Materials.

His experience includes disaster risk modeling at the International Institute for Applied Systems Analysis (IIASA) in Austria on a National Academy of Sciences (NAS) fellowship through a National Science Foundation (NSF) grant; and traffic flow simulation for an engineering consulting firm. Samrat conducted postdoctoral research on infrastructure risk and decision analysis at the U.S. Homeland Security National Center of Excellence for Risk and Economic Analysis of Terrorism Events (DHS-CREATE) at the University of Southern California.

He holds a Ph.D. in Civil Engineering with focus on Systems Risk Analysis from Vanderbilt University, an M.S. in Civil Engineering with focus on Transportation Systems from The University of Texas at Austin, and a B.E. with honors in Civil Engineering from Punjab Engineering College, India.

Research Interests

  • Infrastructure system security and resilience
  • Risk and decision analysis
  • Probabilistic modeling, simulation, and optimization
  • Statistical learning
  • Network science

Education and Credentials

  • Postdoc, Infrastructure Risk and Decision Analysis, CREATE Homeland Security Center of Excellence, University of Southern California
  • Ph.D., Civil Engineering (Systems Risk Analysis), Vanderbilt University
  • M.S., Civil Engineering (Transportation Systems), University of Texas at Austin
  • B.E. (Honors), Civil Engineering, Punjab Engineering College, India

Affiliations and Professional Service

  • Society for Risk Analysis
  • Transportation Research Board of the National Academies
  • Institute for Operations Research and the Management Sciences

Awards and Recognitions

  • Best Paper Award (Attack and Disaster Track), IEEE Symposium on Technologies for Homeland Security
  • Best Paper Award (Cyber Security Track), IEEE Symposium on Technologies for Homeland Security
  • Certificate of Outstanding Contribution in Reviewing, Reliability Engineering and System Safety Journal
  • Laboratory Director's Pathway to Excellence Award, PNNL
  • Fellow, CREATE Homeland Security Center, University of Southern California
  • Outstanding Performance Award, National Security Directorate, PNNL
  • Research Transition Project of the Year Award, CREATE Homeland Security Center, University of Southern California
  • IBM Graduate Fellowship, Vanderbilt University
  • Young Scientists Summer Program Fellowship-National Science Foundation Grant, U.S. National Academy of Sciences
  • Full Tuition Scholarship, Punjab Engineering College, India

PNNL Publications


  • Duan Q, E Al-Shaer, S Chatterjee, M Halappanavar, and CS Oehmen. 2018. "Proactive Routing Mutation Against Stealthy Distributed Denial of Service Attacks - Metrics, Modeling and Analysis." Journal of Defense Modeling and Simulation 15(2):219-230.  doi:10.1177/1548512917731002


  • Chen Z, A Rose, F Prager, and S Chatterjee. 2017. "Economic Consequences of Aviation System Disruptions : A Reduced-Form Computable General Equilibrium Analysis." Transportation Research. Part A. Policy and Practice 95:207-226.  doi:10.1016/j.tra.2016.09.027
  • Chikkagoudar S, S Chatterjee, DG Thomas, TE Carroll, and G Muller. 2017. "Machine Learning." Chapter 6 in Research Methods for Cyber Security, ed. TW Edgar and DO Manz, pp. 153-173.  Syngress, CAMBRIDGE, MA.  doi:10.1016/B978-0-12-805349-2.00006-6
  • Rose A, F Prager, Z Chen, S Chatterjee, D Wei, N Heatwole, and E Warren. 2017. Economic Consequence Analysis of Disasters: The ECAT Software Tool.  Springer Nature Singapore, Singapore, Singapore.  doi:10.1007/978-981-10-2567-9


  • Chatterjee S, M Halappanavar, R Tipireddy, and MR Oster. 2016. "Game Theory and Uncertainty Quantification for Cyber Defense Applications." SIAM News 49(6):1-5. 
  • Chatterjee S, R Tipireddy, MR Oster, and M Halappanavar. 2016. "Propagating Mixed Uncertainties in Cyber Attacker Payoffs: Exploration of Two-Phase Monte Carlo Sampling and Probability Bounds Analysis." In IEEE Symposium on Technologies for Homeland Security (HST 2016), May 10-11, 2016, Waltham, MA.  IEEE, PISCATAWAY, NJ.  doi:10.1109/THS.2016.7568967
  • Rauf U, F Gillani, E Al-Shaer, M Halappanavar, S Chatterjee, and CS Oehmen. 2016. "Formal Approach For Resilient Reachability based on End-System Route Agility." In Third ACM Workshop on Moving Target Defense (MTD 2016), October 24-28, 2016, Vienna, Austria, pp. 117-127.  ACM, NEW YORK, NY.  doi:10.1145/2995272.2995275
  • Saha S, AK Vullinati, M Halappanavar, and S Chatterjee. 2016. "Identifying Vulnerabilities and Hardening Attack Graphs for Networked Systems." In IEEE Symposium on Technologies for Homeland Security (HST 2016), May 10-11, 2016, Waltham, MA.  IEEE, PISCATAWAY, NJ.  doi:10.1109/THS.2016.7568884


  • Chatterjee S, M Halappanavar, R Tipireddy, MR Oster, and S Saha. 2015. "Quantifying Mixed Uncertainties in Cyber Attacker Payoffs." In IEEE International Symposium on Technologies for Homeland Security (HST 2015), April 14-16, 2015, Waltham, Massachusetts, pp. 1-6.  IEEE, Piscataway, NJ.  doi:10.1109/THS.2015.7225287
  • Chatterjee S, R Tipireddy, MR Oster, and M Halappanavar. 2015. "A Probabilistic Framework for Quantifying Mixed Uncertainties in Cyber Attacker Payoffs." National Cybersecurity Institute Journal 2(3):13-24. 
  • Bramer LM, S Chatterjee, AE Holmes, SM Robinson, SF Bradley, and BJM Webb-Robertson. 2015. "A Machine Learning Approach for Business Intelligence Analysis using Commercial Shipping Transaction Data." In The 11th International Conference on Data Mining (DMIN 2015), July 27-30, 2015, Las Vegas, Nevada, pp. 162-167.  CSREA Press, ATHENS, GA. 

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