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Fundamental and Computational Sciences Directorate

Staff information

Stephen J. Young

Computational Math Group
Mathematician
Pacific Northwest National Laboratory
PO Box 999
MSIN: J4-32
Richland, WA 99352

PNNL Publications

2024

  • Aksoy S.G., B. Fang, R. Gioiosa, W.W. Kay, H. Lee, J.A. Bilbrey, and M.R. Shapiro, et al. 2024. Unifying Combinatorial and Graphical Methods in Artificial Intelligence. PNNL-36839. Richland, WA: Pacific Northwest National Laboratory. Unifying Combinatorial and Graphical Methods in Artificial Intelligence
  • Aksoy S.G., I.D. Amburg, and S.J. Young. 2024. "Scalable Tensor Methods for Nonuniform Hypergraphs." SIAM Journal on Mathematics of Data Science 6, no. 2:481-503. PNNL-SA-186918. doi:10.1137/23M1584472
  • Suetterlein J.D., S.J. Young, J.S. Firoz, J.B. Manzano Franco, N.R. Tallent, R.D. Friese, and K.J. Barker, et al. 2024. "HPC Network Simulation Tuning via Automatic Extraction of Hardware Parameters." In IEEE High Performance Extreme Computing Conference (HPEC 2024), September 23-27, 2024, Wakefield, MA, 1-10. Piscataway, New Jersey:IEEE. PNNL-SA-203658. doi:10.1109/HPEC62836.2024.10938439
  • Suetterlein J.D., S.J. Young, J.S. Firoz, J.B. Manzano Franco, R.D. Friese, N.R. Tallent, and K.J. Barker, et al. 2024. "Automatic Extraction of Network Configurations for Realistic Simulation and Validation." In IEEE International Symposium on Performance Analysis of Systems and Software (ISPASS 2024) May 5-7, 2024, Indianapolis, IN, 310-312. Piscataway, New Jersey:IEEE. PNNL-SA-193572. doi:10.1109/ISPASS61541.2024.00041

2023

  • Myers A.D., A.S. Bittner, S.G. Aksoy, D.M. Best, G. Roek, H. Jenne, and C.A. Joslyn, et al. 2023. "Malicious Cyber Activity Detection using Zigzag Persistence." In IEEE Conference on Dependable and Secure Computing (DSC 2023), November 7-9, 2023, Tampa, FL, 1-8. Piscataway, New Jersey:IEEE. PNNL-SA-185724. doi:10.1109/DSC61021.2023.10354204
  • Nielson F.F., B. Kay, S.J. Young, S.M. Colby, R.S. Renslow, and T.O. Metz. 2023. "Similarity Downselection: Finding the n Most Dissimilar Molecular Conformers for Reference-Free Metabolomics." Metabolites 13, no. 1:Art. No. 105. PNNL-SA-157372. doi:10.3390/metabo13010105
  • Shivakumar S., I.D. Amburg, S.G. Aksoy, J. Li, S.J. Young, and S. Aluru. 2023. "Fast Parallel Tensor Times Same Vector for Hypergraphs." In IEEE 30th International Conference on High Performance Computing, Data, and Analytics (HiPC 2023), December 18-21, 2023, Goa, India, 324-334. Piscataway, New Jersey:IEEE. PNNL-SA-187496. doi:10.1109/HiPC58850.2023.00049
  • Young S.J., J.D. Suetterlein, J.S. Firoz, J.B. Manzano Franco, and K.J. Barker. 2023. "Finding Your Niche: An Evolutionary Approach to HPC Topologies." In IEEE High Performance Extreme Computing Conference (HPEC 2023), September 25-29, 2023, Boston, MA, 1-9. Piscataway, New Jersey:IEEE. PNNL-SA-189932. doi:10.1109/HPEC58863.2023.10363484

2022

  • Aksoy S.G., A. Hagberg, C.A. Joslyn, B. Kay, E. Purvine, and S.J. Young. 2022. "Models and Methods for Sparse (Hyper) Network Science in Business, Industry, and Government." Notices of the American Mathematical Society 69, no. 2:287-291. PNNL-SA-168162. doi:10.1090/noti2424
  • Keller M.T., A. Trenk, and S.J. Young. 2022. "Dimension of Restricted Classes of Interval Orders." Graphs and Combinatorics 38, no. 5:Art. No. 137. PNNL-SA-152654. doi:10.1007/s00373-022-02543-6
  • Nowak K.E., C.M. Ortiz Marrero, and S.J. Young. 2022. "On the Structure of Isometrically Embeddable Metric Spaces." Electronic Journal of Linear Algebra 38. PNNL-SA-126943. doi:10.13001/ela.2022.6891
  • Young S.J., S.G. Aksoy, J.S. Firoz, R. Gioiosa, T.J. Hagge, M.C. Kempton, and J. Escobedo Contreras, et al. 2022. "SpectralFly: Ramanujan Graphs as Flexible and Efficient Interconnection Networks." In IEEE International Parallel and Distributed Processing Symposium (IPDPS 2022), May 30-June 03, 2022, Virtual, Online, 1040-1050. Los Alamitos, California:IEEE Computer Society. PNNL-SA-160551. doi:10.1109/IPDPS53621.2022.00105

2021

  • Aksoy S.G., E. Purvine, and S.J. Young. 2021. "Directional Laplacian Centrality for Cyber Situational Awareness." Digital Threats: Research and Practice 2, no. 4:1-28. PNNL-SA-155008. doi:10.1145/3450286
  • Aksoy S.G., M. Kempton, and S.J. Young. 2021. "Spectral Threshold for Extremal Cyclic Edge-Connectivity." Graphs and Combinatorics 37, no. 6:2079-2093. PNNL-SA-151831. doi:10.1007/s00373-021-02333-6
  • Roy S., S.G. Aksoy, S. Sarkar, P. Wang, and S.J. Young. 2021. "Structural Controllability Assessment for Inverter-Based Microgrids." In North American Power Symposium (NAPS 2021), November 14-16, 2021, College Station, TX, 1-6. Piscataway, New Jersey:IEEE. PNNL-SA-165688. doi:10.1109/NAPS52732.2021.9654687

2020

  • Keller M.T., and S.J. Young. 2020. "Hereditary Semiorders and Enumeration of Semiorders by Dimension." The Electronic Journal of Combinatorics 27, no. 1:Article No. P1.50. PNNL-SA-130793. doi:10.37236/8140

2019

  • Aksoy S.G., K.E. Nowak, and S.J. Young. 2019. "A Linear-Time Algorithm and Analysis of Graph Relative Hausdorff Distance." SIAM Journal on Mathematics of Data Science 1, no. 4:647-666. PNNL-SA-141641. doi:10.1137/19M1248224
  • Aksoy S.G., K.E. Nowak, E. Purvine, and S.J. Young. 2019. "Relative Hausdorff distance for network analysis." Applied Network Science 4, no. 1:80. PNNL-SA-141621. doi:10.1007/s41109-019-0198-0

2018

  • Young S.J., Y.V. Makarov, R. Diao, M. Halappanavar, M.R. Vallem, R. Fan, and R. Huang, et al. 2018. "Topological Power Grid Statistics from a Network-of-Networks Perspective." In IEEE Power & Energy Society General Meeting (PESGM 2018), August 5-10, 2018, Portland, OR. Piscataway, New Jersey:IEEE. PNNL-SA-130492. doi:10.1109/PESGM.2018.8586475
  • Young S.J., Y.V. Makarov, R. Diao, R. Fan, R. Huang, J.G. O'Brien, and M. Halappanavar, et al. 2018. "Synthetic Power Grids from Real World Models." In IEEE Power & Energy Society General Meeting (PESGM 2018), August 5-10, 2018, Portland, OR. Piscataway, New Jersey:IEEE. PNNL-SA-130491. doi:10.1109/PESGM.2018.8585792

2017

  • Keller M.T., and S.J. Young. 2017. "Combinatorial Reductions for the Stanley Depth of I and S/I." The Electronic Journal of Combinatorics 24, no. 3:Article No. P3.48. PNNL-SA-121188.

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