Publications

Results 26–50 of 70
Skip to search filters

Probabilistic methods for sensitivity analysis and calibration in the NASA challenge problem

Journal of Aerospace Information Systems

Safta, Cosmin S.; Sargsyan, Khachik S.; Najm, H.N.; Chowdhary, Kenny; Debusschere, Bert D.; Swiler, Laura P.; Eldred, Michael S.

In this paper, a series of algorithms are proposed to address the problems in the NASA Langley Research Center Multidisciplinary Uncertainty Quantification Challenge. A Bayesian approach is employed to characterize and calibrate the epistemic parameters based on the available data, whereas a variance-based global sensitivity analysis is used to rank the epistemic and aleatory model parameters. A nested sampling of the aleatory-epistemic space is proposed to propagate uncertainties from model parameters to output quantities of interest.

More Details

Progress in Deep Geologic Disposal Safety Assessment in the U.S. since 2010

Mariner, Paul M.; Connolly, Laura A.; Cunningham, Leigh C.; Debusschere, Bert D.; Dobson, David C.; Frederick, Jennifer M.; Hammond, Glenn E.; Jordan, Spencer H.; LaForce, Tara; Nole, Michael A.; Park, Heeho D.; Perry, Frank V.; Rogers, Ralph D.; Seidl, Daniel T.; Sevougian, Stephen D.; Stein, Emily S.; Swift, Peter N.; Swiler, Laura P.; Vo, Jonathan V.; Wallace, Michael G.

Abstract not provided.

Science & Engineering of Cyber Security by Uncertainty Quantification and Rigorous Experimentation (SECURE) HANDBOOK

Pinar, Ali P.; Tarman, Thomas D.; Swiler, Laura P.; Gearhart, Jared L.; Hart, Derek H.; Vugrin, Eric D.; Cruz, Gerardo C.; Arguello, Bryan A.; Geraci, Gianluca G.; Debusschere, Bert D.; Hanson, Seth T.; Outkin, Alexander V.; Thorpe, Jamie T.; Hart, William E.; Sahakian, Meghan A.; Gabert, Kasimir G.; Glatter, Casey J.; Johnson, Emma S.; Punla-Green, She?ifa P.

Abstract not provided.

Science and Engineering of Cybersecurity by Uncertainty quantification and Rigorous Experimentation (SECURE) (Final Report)

Pinar, Ali P.; Tarman, Thomas D.; Swiler, Laura P.; Gearhart, Jared L.; Hart, Derek H.; Vugrin, Eric D.; Cruz, Gerardo C.; Arguello, Bryan A.; Geraci, Gianluca G.; Debusschere, Bert D.; Hanson, Seth T.; Outkin, Alexander V.; Thorpe, Jamie T.; Hart, William E.; Sahakian, Meghan A.; Gabert, Kasimir G.; Glatter, Casey J.; Johnson, Emma S.; Punla-Green, She?ifa P.

This report summarizes the activities performed as part of the Science and Engineering of Cybersecurity by Uncertainty quantification and Rigorous Experimentation (SECURE) Grand Challenge LDRD project. We provide an overview of the research done in this project, including work on cyber emulation, uncertainty quantification, and optimization. We present examples of integrated analyses performed on two case studies: a network scanning/detection study and a malware command and control study. We highlight the importance of experimental workflows and list references of papers and presentations developed under this project. We outline lessons learned and suggestions for future work.

More Details
Results 26–50 of 70
Results 26–50 of 70